From 315cb1ab96543431e315e2572da8821347cf7521 Mon Sep 17 00:00:00 2001 From: Rov Juvano Date: Sun, 31 Aug 2008 12:20:33 +0000 Subject: [PATCH] Add scaletempo plugin, which allows to scale the speed of audio without changing the pitch by handling seeks with a r... Original commit message from CVS: Patch by: Rov Juvano * configure.ac: * docs/plugins/Makefile.am: * docs/plugins/gst-plugins-bad-plugins-docs.sgml: * docs/plugins/gst-plugins-bad-plugins-sections.txt: * docs/plugins/inspect/plugin-scaletempo.xml: * examples/scaletempo/Makefile.am: * examples/scaletempo/demo-gui.c: (pop_status_bar), (status_bar_printf), (demo_gui_seek_bar_format), (update_position), (demo_gui_seek_bar_change), (demo_gui_do_change_rate), (demo_gui_do_set_rate), (demo_gui_do_rate_entered), (demo_gui_do_toggle_advanced), (demo_gui_do_toggle_disabled), (demo_gui_do_seek), (demo_gui_do_play), (demo_gui_do_pause), (demo_gui_do_play_pause), (demo_gui_do_open_file), (demo_gui_do_playlist_prev), (demo_gui_do_playlist_next), (demo_gui_do_about_dialog), (demo_gui_do_quit), (demo_gui_request_set_stride), (demo_gui_request_set_overlap), (demo_gui_request_set_search), (demo_gui_rate_changed), (demo_gui_playing_started), (demo_gui_playing_paused), (demo_gui_playing_ended), (demo_gui_player_errored), (demo_gui_stride_changed), (demo_gui_overlap_changed), (demo_gui_search_changed), (demo_gui_set_player_func), (demo_gui_set_playlist_func), (build_gvalue_array), (create_action), (demo_gui_show_func), (demo_gui_set_player), (demo_gui_set_playlist), (demo_gui_show), (demo_gui_get_property), (demo_gui_set_property), (demo_gui_init), (demo_gui_class_init), (demo_gui_get_type): * examples/scaletempo/demo-gui.h: * examples/scaletempo/demo-main.c: (handle_error_message), (handle_quit), (main): * examples/scaletempo/demo-player.c: (no_pipeline), (demo_player_event_listener), (demo_player_state_changed_cb), (demo_player_eos_cb), (demo_player_build_pipeline), (_set_rate), (demo_player_scale_rate_func), (demo_player_set_rate_func), (_set_state_and_wait), (demo_player_load_uri_func), (demo_player_play_func), (demo_player_pause_func), (_seek_to), (demo_player_seek_by_func), (demo_player_seek_to_func), (demo_player_get_position_func), (demo_player_get_duration_func), (demo_player_scale_rate), (demo_player_set_rate), (demo_player_load_uri), (demo_player_play), (demo_player_pause), (demo_player_seek_by), (demo_player_seek_to), (demo_player_get_position), (demo_player_get_duration), (demo_player_get_property), (demo_player_set_property), (demo_player_init), (demo_player_class_init), (demo_player_get_type): * examples/scaletempo/demo-player.h: * gst/scaletempo/Makefile.am: * gst/scaletempo/gstscaletempo.c: (best_overlap_offset_float), (best_overlap_offset_s16), (output_overlap_float), (output_overlap_s16), (fill_queue), (reinit_buffers), (gst_scaletempo_transform), (gst_scaletempo_transform_size), (gst_scaletempo_sink_event), (gst_scaletempo_set_caps), (gst_scaletempo_get_property), (gst_scaletempo_set_property), (gst_scaletempo_base_init), (gst_scaletempo_class_init), (gst_scaletempo_init): * gst/scaletempo/gstscaletempo.h: * gst/scaletempo/gstscaletempoplugin.c: (plugin_init): Add scaletempo plugin, which allows to scale the speed of audio without changing the pitch by handling seeks with a rate!=1.0. Integrate it into the docs and add the example application for it. Fixes bug #537700. --- ChangeLog | 65 ++ configure.ac | 3 + docs/plugins/Makefile.am | 1 + docs/plugins/gst-plugins-bad-plugins-docs.sgml | 2 + docs/plugins/gst-plugins-bad-plugins-sections.txt | 14 + docs/plugins/inspect/plugin-scaletempo.xml | 34 + examples/scaletempo/Makefile.am | 8 + examples/scaletempo/demo-gui.c | 1258 +++++++++++++++++++++ examples/scaletempo/demo-gui.h | 60 + examples/scaletempo/demo-main.c | 95 ++ examples/scaletempo/demo-player.c | 756 +++++++++++++ examples/scaletempo/demo-player.h | 71 ++ gst/scaletempo/Makefile.am | 13 + gst/scaletempo/gstscaletempo.c | 748 ++++++++++++ gst/scaletempo/gstscaletempo.h | 49 + gst/scaletempo/gstscaletempoplugin.c | 74 ++ 16 files changed, 3251 insertions(+) create mode 100644 docs/plugins/inspect/plugin-scaletempo.xml create mode 100644 examples/scaletempo/Makefile.am create mode 100644 examples/scaletempo/demo-gui.c create mode 100644 examples/scaletempo/demo-gui.h create mode 100644 examples/scaletempo/demo-main.c create mode 100644 examples/scaletempo/demo-player.c create mode 100644 examples/scaletempo/demo-player.h create mode 100644 gst/scaletempo/Makefile.am create mode 100644 gst/scaletempo/gstscaletempo.c create mode 100644 gst/scaletempo/gstscaletempo.h create mode 100644 gst/scaletempo/gstscaletempoplugin.c diff --git a/ChangeLog b/ChangeLog index 8b8d24e..91008df 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,68 @@ +2008-08-31 Sebastian Dröge + + Patch by: Rov Juvano + + * configure.ac: + * docs/plugins/Makefile.am: + * docs/plugins/gst-plugins-bad-plugins-docs.sgml: + * docs/plugins/gst-plugins-bad-plugins-sections.txt: + * docs/plugins/inspect/plugin-scaletempo.xml: + * examples/scaletempo/Makefile.am: + * examples/scaletempo/demo-gui.c: (pop_status_bar), + (status_bar_printf), (demo_gui_seek_bar_format), (update_position), + (demo_gui_seek_bar_change), (demo_gui_do_change_rate), + (demo_gui_do_set_rate), (demo_gui_do_rate_entered), + (demo_gui_do_toggle_advanced), (demo_gui_do_toggle_disabled), + (demo_gui_do_seek), (demo_gui_do_play), (demo_gui_do_pause), + (demo_gui_do_play_pause), (demo_gui_do_open_file), + (demo_gui_do_playlist_prev), (demo_gui_do_playlist_next), + (demo_gui_do_about_dialog), (demo_gui_do_quit), + (demo_gui_request_set_stride), (demo_gui_request_set_overlap), + (demo_gui_request_set_search), (demo_gui_rate_changed), + (demo_gui_playing_started), (demo_gui_playing_paused), + (demo_gui_playing_ended), (demo_gui_player_errored), + (demo_gui_stride_changed), (demo_gui_overlap_changed), + (demo_gui_search_changed), (demo_gui_set_player_func), + (demo_gui_set_playlist_func), (build_gvalue_array), + (create_action), (demo_gui_show_func), (demo_gui_set_player), + (demo_gui_set_playlist), (demo_gui_show), (demo_gui_get_property), + (demo_gui_set_property), (demo_gui_init), (demo_gui_class_init), + (demo_gui_get_type): + * examples/scaletempo/demo-gui.h: + * examples/scaletempo/demo-main.c: (handle_error_message), + (handle_quit), (main): + * examples/scaletempo/demo-player.c: (no_pipeline), + (demo_player_event_listener), (demo_player_state_changed_cb), + (demo_player_eos_cb), (demo_player_build_pipeline), (_set_rate), + (demo_player_scale_rate_func), (demo_player_set_rate_func), + (_set_state_and_wait), (demo_player_load_uri_func), + (demo_player_play_func), (demo_player_pause_func), (_seek_to), + (demo_player_seek_by_func), (demo_player_seek_to_func), + (demo_player_get_position_func), (demo_player_get_duration_func), + (demo_player_scale_rate), (demo_player_set_rate), + (demo_player_load_uri), (demo_player_play), (demo_player_pause), + (demo_player_seek_by), (demo_player_seek_to), + (demo_player_get_position), (demo_player_get_duration), + (demo_player_get_property), (demo_player_set_property), + (demo_player_init), (demo_player_class_init), + (demo_player_get_type): + * examples/scaletempo/demo-player.h: + * gst/scaletempo/Makefile.am: + * gst/scaletempo/gstscaletempo.c: (best_overlap_offset_float), + (best_overlap_offset_s16), (output_overlap_float), + (output_overlap_s16), (fill_queue), (reinit_buffers), + (gst_scaletempo_transform), (gst_scaletempo_transform_size), + (gst_scaletempo_sink_event), (gst_scaletempo_set_caps), + (gst_scaletempo_get_property), (gst_scaletempo_set_property), + (gst_scaletempo_base_init), (gst_scaletempo_class_init), + (gst_scaletempo_init): + * gst/scaletempo/gstscaletempo.h: + * gst/scaletempo/gstscaletempoplugin.c: (plugin_init): + Add scaletempo plugin, which allows to scale the speed of audio without + changing the pitch by handling seeks with a rate!=1.0. + Integrate it into the docs and add the example application for it. + Fixes bug #537700. + 2008-08-30 David Schleef * ext/dirac/gstdiracenc.cc: Fix some memleaks. diff --git a/configure.ac b/configure.ac index 99d3a3c..d2192df 100644 --- a/configure.ac +++ b/configure.ac @@ -266,6 +266,7 @@ AG_GST_CHECK_PLUGIN(pcapparse) AG_GST_CHECK_PLUGIN(rawparse) AG_GST_CHECK_PLUGIN(real) AG_GST_CHECK_PLUGIN(rtpmanager) +AG_GST_CHECK_PLUGIN(scaletempo) AG_GST_CHECK_PLUGIN(sdp) AG_GST_CHECK_PLUGIN(selector) AG_GST_CHECK_PLUGIN(speed) @@ -1406,6 +1407,7 @@ gst/nuvdemux/Makefile gst/pcapparse/Makefile gst/rawparse/Makefile gst/rtpmanager/Makefile +gst/scaletempo/Makefile gst/sdp/Makefile gst/selector/Makefile gst/speed/Makefile @@ -1437,6 +1439,7 @@ sys/winscreencap/Makefile examples/Makefile examples/app/Makefile examples/directfb/Makefile +examples/scaletempo/Makefile examples/switch/Makefile ext/amrwb/Makefile ext/alsaspdif/Makefile diff --git a/docs/plugins/Makefile.am b/docs/plugins/Makefile.am index 0d474c0..9d13a3e 100644 --- a/docs/plugins/Makefile.am +++ b/docs/plugins/Makefile.am @@ -135,6 +135,7 @@ EXTRA_HFILES = \ $(top_srcdir)/gst/rtpmanager/gstrtpptdemux.h \ $(top_srcdir)/gst/rtpmanager/gstrtpsession.h \ $(top_srcdir)/gst/rtpmanager/gstrtpssrcdemux.h \ + $(top_srcdir)/gst/scaletempo/gstscaletempo.h \ $(top_srcdir)/gst/sdp/gstsdpdemux.h \ $(top_srcdir)/gst/selector/gstinputselector.h \ $(top_srcdir)/gst/selector/gstoutputselector.h \ diff --git a/docs/plugins/gst-plugins-bad-plugins-docs.sgml b/docs/plugins/gst-plugins-bad-plugins-docs.sgml index 9167ce2..9137bf2 100644 --- a/docs/plugins/gst-plugins-bad-plugins-docs.sgml +++ b/docs/plugins/gst-plugins-bad-plugins-docs.sgml @@ -46,6 +46,7 @@ + @@ -112,6 +113,7 @@ + diff --git a/docs/plugins/gst-plugins-bad-plugins-sections.txt b/docs/plugins/gst-plugins-bad-plugins-sections.txt index a6d9bed..0b58c75 100644 --- a/docs/plugins/gst-plugins-bad-plugins-sections.txt +++ b/docs/plugins/gst-plugins-bad-plugins-sections.txt @@ -558,6 +558,20 @@ GST_IS_RTP_SSRC_DEMUX_CLASS
+element-scaletempo +scaletempo +GstScaletempo + +GstScaletempoClass +GST_IS_SCALETEMPO +GST_IS_SCALETEMPO_CLASS +GST_SCALETEMPO +GST_SCALETEMPO_CLASS +GST_TYPE_SCALETEMPO +gst_scaletempo_get_type +
+ +
element-sdlaudiosink sdlaudiosink GstSDLAudioSink diff --git a/docs/plugins/inspect/plugin-scaletempo.xml b/docs/plugins/inspect/plugin-scaletempo.xml new file mode 100644 index 0000000..53b1728 --- /dev/null +++ b/docs/plugins/inspect/plugin-scaletempo.xml @@ -0,0 +1,34 @@ + + scaletempo + Scale audio tempo in sync with playback rate + ../../gst/scaletempo/.libs/libgstscaletempoplugin.so + libgstscaletempoplugin.so + 0.10.8.1 + LGPL + gst-plugins-bad + GStreamer + http://gstreamer.freedesktop.org/ + + + scaletempo + Scaletempo + Filter/Effect/Rate + Sync audio tempo with playback rate + Rov Juvano <rovjuvano@users.sourceforge.net> + + + sink + sink + always +
audio/x-raw-float, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 2147483647 ], endianness=(int)1234, width=(int)32; audio/x-raw-int, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 2147483647 ], endianness=(int)1234, width=(int)16, depth=(int)16, signed=(boolean)true
+ + + src + source + always +
audio/x-raw-float, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 2147483647 ], endianness=(int)1234, width=(int)32; audio/x-raw-int, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 2147483647 ], endianness=(int)1234, width=(int)16, depth=(int)16, signed=(boolean)true
+ + + + + \ No newline at end of file diff --git a/examples/scaletempo/Makefile.am b/examples/scaletempo/Makefile.am new file mode 100644 index 0000000..5cdf3c7 --- /dev/null +++ b/examples/scaletempo/Makefile.am @@ -0,0 +1,8 @@ +noinst_PROGRAMS = scaletempo-demo + +scaletempo_demo_SOURCES = demo-main.c demo-player.c demo-gui.c +scaletempo_demo_CFLAGS = $(GST_CFLAGS) $(GST_PLUGINS_BASE_CFLAGS) $(GTK_CFLAGS) +scaletempo_demo_LDFLAGS = $(GST_LIBS) $(GST_PLUGINS_BASE_LIBS) $(GTK_LIBS) -lgstinterfaces-@GST_MAJORMINOR@ + +noinst_HEADERS = demo-player.h demo-gui.h + diff --git a/examples/scaletempo/demo-gui.c b/examples/scaletempo/demo-gui.c new file mode 100644 index 0000000..f5a774f --- /dev/null +++ b/examples/scaletempo/demo-gui.c @@ -0,0 +1,1258 @@ +/* demo-gui.c + * Copyright (C) 2008 Rov Juvano + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include +#include +#include +#include "demo-gui.h" + +#undef G_LOG_DOMAIN +#define G_LOG_DOMAIN "demo-gui" + +enum +{ + SIGNAL_ERROR, + SIGNAL_QUITING, + LAST_SIGNAL +}; +static guint demo_gui_signals[LAST_SIGNAL] = { 0 }; + +enum +{ + PROP_0, +}; + +typedef struct _DemoGuiPrivate +{ + DemoPlayer *player; + GList *uris; + GList *now_playing; + gboolean is_playing; + GtkWidget *window; + GtkEntry *rate_entry; + GtkStatusbar *status_bar; + gint position_updater_id; + GtkRange *seek_range; + GtkLabel *amount_played; + GtkLabel *amount_to_play; + GtkAction *play_action; + GtkAction *pause_action; + GtkAction *open_file; + GtkAction *playlist_next; +} DemoGuiPrivate; + +#define DEMO_GUI_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), DEMO_TYPE_GUI, DemoGuiPrivate)) + +/* forward declarations */ +static GValueArray *build_gvalue_array (guint n_values, ...); + +/* Handlers for status bar and seek bar */ +static int +pop_status_bar (gpointer data) +{ + GValueArray *gvalues = (GValueArray *) data; + GtkStatusbar *sb = + GTK_STATUSBAR (g_value_get_object (g_value_array_get_nth (gvalues, 0))); + guint msg_id = g_value_get_uint (g_value_array_get_nth (gvalues, 1)); + + gtk_statusbar_remove (sb, 0, msg_id); + return FALSE; +} + +#define DEFAULT_STATUS_BAR_TIMEOUT 2 +static void +status_bar_printf (GtkStatusbar * sb, guint seconds, gchar const *format, ...) +{ + va_list args; + gchar msg[80]; + guint msg_id; + + va_start (args, format); + g_vsnprintf (msg, 80, format, args); + va_end (args); + + msg_id = gtk_statusbar_push (sb, 0, msg); + g_timeout_add (2000, pop_status_bar, + build_gvalue_array (2, G_TYPE_OBJECT, sb, G_TYPE_UINT, msg_id)); +} + +#define PRINTF_TIME_FORMAT "u:%02u:%02u" +#define PRINTF_TIME_ARGS(t) \ + (t >= 0) ? (guint) ((t) / (60 * 60)) : 99, \ + (t >= 0) ? (guint) (((t) / (60)) % 60) : 99, \ + (t >= 0) ? (guint) ((t) % 60) : 99 + +static gchar * +demo_gui_seek_bar_format (GtkScale * scale, gdouble value, gpointer data) +{ + return g_strdup_printf ("%" PRINTF_TIME_FORMAT, + PRINTF_TIME_ARGS ((gint64) value)); +} + +gboolean +update_position (gpointer data) +{ + DemoGui *gui = DEMO_GUI (data); + DemoGuiPrivate *priv = DEMO_GUI_GET_PRIVATE (gui); + gchar pos_str[16], dur_str[16]; + gint pos = demo_player_get_position (priv->player); + + if (pos > 0) { + gint dur = demo_player_get_duration (priv->player); + + g_snprintf (pos_str, 16, "%" PRINTF_TIME_FORMAT, PRINTF_TIME_ARGS (pos)); + if (dur > 0) { + g_snprintf (dur_str, 16, "-%" PRINTF_TIME_FORMAT, + PRINTF_TIME_ARGS (dur - pos)); + } else { + dur = pos; + g_sprintf (dur_str, "-??:??:??"); + } + if (dur > 0) + gtk_range_set_range (GTK_RANGE (priv->seek_range), 0, (gdouble) dur); + gtk_range_set_value (GTK_RANGE (priv->seek_range), (gdouble) pos); + } else { + g_sprintf (pos_str, "??:??:??"); + g_sprintf (dur_str, "-??:??:??"); + } + gtk_label_set_text (GTK_LABEL (priv->amount_played), pos_str); + gtk_label_set_text (GTK_LABEL (priv->amount_to_play), dur_str); + + return priv->is_playing; +} + + +gboolean +demo_gui_seek_bar_change (GtkRange * range, + GtkScrollType scroll, gdouble value, gpointer data) +{ + DemoGui *gui = DEMO_GUI (data); + DemoGuiPrivate *priv = DEMO_GUI_GET_PRIVATE (gui); + gint new_second = (gint) value; + + status_bar_printf (priv->status_bar, DEFAULT_STATUS_BAR_TIMEOUT, + "Seeking to %i second", new_second); + demo_player_seek_to (priv->player, new_second); + + return FALSE; +} + + +/* Callbacks for actions */ +static void +demo_gui_do_change_rate (GtkAction * action, gpointer data) +{ + GValueArray *gvalues = (GValueArray *) data; + DemoGui *gui = g_value_get_object (g_value_array_get_nth (gvalues, 0)); + gdouble scale_amount = + g_value_get_double (g_value_array_get_nth (gvalues, 1)); + DemoGuiPrivate *priv = DEMO_GUI_GET_PRIVATE (gui); + + status_bar_printf (priv->status_bar, DEFAULT_STATUS_BAR_TIMEOUT, + "Changing rate by %3.2lf", scale_amount); + + demo_player_scale_rate (priv->player, scale_amount); +} + +static void +demo_gui_do_set_rate (GtkAction * action, gpointer data) +{ + GValueArray *gvalues = (GValueArray *) data; + DemoGui *gui = g_value_get_object (g_value_array_get_nth (gvalues, 0)); + gdouble new_rate = g_value_get_double (g_value_array_get_nth (gvalues, 1)); + DemoGuiPrivate *priv = DEMO_GUI_GET_PRIVATE (gui); + + status_bar_printf (priv->status_bar, DEFAULT_STATUS_BAR_TIMEOUT, + "Setting rate to %3.2lf", new_rate); + + demo_player_set_rate (priv->player, new_rate); +} + +static gboolean +demo_gui_do_rate_entered (GtkWidget * widget, gpointer data) +{ + DemoGui *gui = DEMO_GUI (data); + DemoGuiPrivate *priv = DEMO_GUI_GET_PRIVATE (gui); + gchar *err = NULL; + const gchar *text = gtk_entry_get_text (GTK_ENTRY (widget)); + double new_rate = g_strtod (text, &err); + + if (*err) { + gtk_widget_error_bell (priv->window); + status_bar_printf (priv->status_bar, DEFAULT_STATUS_BAR_TIMEOUT, + "Invalid rate: %s", text); + return TRUE; + } + + status_bar_printf (priv->status_bar, DEFAULT_STATUS_BAR_TIMEOUT, + "Setting rate to %3.2lf", new_rate); + + demo_player_set_rate (priv->player, new_rate); + return FALSE; +} + +static void +demo_gui_do_toggle_advanced (GtkAction * action, gpointer data) +{ + GValueArray *gvalues = (GValueArray *) data; + DemoGui *gui = + DEMO_GUI (g_value_get_object (g_value_array_get_nth (gvalues, 0))); + GtkWidget *stride_ui = + GTK_WIDGET (g_value_get_object (g_value_array_get_nth (gvalues, 1))); + GtkWidget *overlap_ui = + GTK_WIDGET (g_value_get_object (g_value_array_get_nth (gvalues, 2))); + GtkWidget *search_ui = + GTK_WIDGET (g_value_get_object (g_value_array_get_nth (gvalues, 3))); + DemoGuiPrivate *priv = DEMO_GUI_GET_PRIVATE (gui); + gboolean active; + + status_bar_printf (priv->status_bar, 1, "Toggling advanced mode"); + + active = gtk_toggle_action_get_active (GTK_TOGGLE_ACTION (action)); + gtk_widget_set_sensitive (stride_ui, active); + gtk_widget_set_sensitive (overlap_ui, active); + gtk_widget_set_sensitive (search_ui, active); +} + +static void +demo_gui_do_toggle_disabled (GtkAction * action, gpointer data) +{ + GValueArray *gvalues = (GValueArray *) data; + DemoGui *gui = + DEMO_GUI (g_value_get_object (g_value_array_get_nth (gvalues, 0))); + GtkAction *advanced_action = + GTK_ACTION (g_value_get_object (g_value_array_get_nth (gvalues, 1))); + GtkWidget *advanced_ui = + GTK_WIDGET (g_value_get_object (g_value_array_get_nth (gvalues, 2))); + + DemoGuiPrivate *priv = DEMO_GUI_GET_PRIVATE (gui); + gboolean active; + + status_bar_printf (priv->status_bar, 1, "Toggling disabled"); + + active = gtk_toggle_action_get_active (GTK_TOGGLE_ACTION (action)); + gtk_action_set_sensitive (GTK_ACTION (advanced_action), !active); + gtk_widget_set_sensitive (GTK_WIDGET (advanced_ui), !active); + g_object_set (G_OBJECT (priv->player), "disabled", active, NULL); +} + +static void +demo_gui_do_seek (GtkAction * action, gpointer data) +{ + GValueArray *gvalues = (GValueArray *) data; + DemoGui *gui = + DEMO_GUI (g_value_get_object (g_value_array_get_nth (gvalues, 0))); + gint seconds = g_value_get_int (g_value_array_get_nth (gvalues, 1)); + DemoGuiPrivate *priv = DEMO_GUI_GET_PRIVATE (gui); + + status_bar_printf (priv->status_bar, DEFAULT_STATUS_BAR_TIMEOUT, + "Requesting seek by %i seconds", seconds); + + demo_player_seek_by (priv->player, seconds); +} + +static void +demo_gui_do_play (GtkAction * action, gpointer data) +{ + DemoGui *gui = DEMO_GUI (data); + DemoGuiPrivate *priv = DEMO_GUI_GET_PRIVATE (gui); + + if (priv->is_playing) { + g_signal_emit (gui, demo_gui_signals[SIGNAL_ERROR], 0, "Already playing"); + return; + } + + status_bar_printf (priv->status_bar, DEFAULT_STATUS_BAR_TIMEOUT, + "Requesting playback start"); + + demo_player_play (priv->player); +} + +static void +demo_gui_do_pause (GtkAction * action, gpointer data) +{ + DemoGui *gui = DEMO_GUI (data); + DemoGuiPrivate *priv = DEMO_GUI_GET_PRIVATE (gui); + + if (!priv->is_playing) { + g_signal_emit (gui, demo_gui_signals[SIGNAL_ERROR], 0, "Already paused"); + return; + } + + status_bar_printf (priv->status_bar, DEFAULT_STATUS_BAR_TIMEOUT, + "Requesting playback pause"); + + demo_player_pause (priv->player); +} + +static void +demo_gui_do_play_pause (GtkAction * action, gpointer data) +{ + DemoGui *gui = DEMO_GUI (data); + DemoGuiPrivate *priv = DEMO_GUI_GET_PRIVATE (gui); + + status_bar_printf (priv->status_bar, DEFAULT_STATUS_BAR_TIMEOUT, + "Reqesting playback toggle"); + + if (priv->is_playing) + gtk_action_activate (priv->pause_action); + else + gtk_action_activate (priv->play_action); +} + +static void +demo_gui_do_open_file (GtkAction * action, gpointer data) +{ + DemoGui *gui = DEMO_GUI (data); + DemoGuiPrivate *priv = DEMO_GUI_GET_PRIVATE (gui); + GtkWidget *dialog = gtk_file_chooser_dialog_new ("Open File", + GTK_WINDOW (priv->window), + GTK_FILE_CHOOSER_ACTION_OPEN, + GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL, + GTK_STOCK_OPEN, GTK_RESPONSE_ACCEPT, + NULL); + + if (gtk_dialog_run (GTK_DIALOG (dialog)) == GTK_RESPONSE_ACCEPT) { + char *filename = gtk_file_chooser_get_filename (GTK_FILE_CHOOSER (dialog)); + GError *err = NULL; + + g_list_free (priv->uris); + priv->uris = NULL; + priv->now_playing = NULL; + demo_player_load_uri (priv->player, g_filename_to_uri (filename, NULL, + &err)); + g_free (filename); + } + gtk_widget_destroy (dialog); +} + +static void +demo_gui_do_playlist_prev (GtkAction * action, gpointer data) +{ + DemoGui *gui = DEMO_GUI (data); + DemoGuiPrivate *priv = DEMO_GUI_GET_PRIVATE (gui); + + if (priv->now_playing) { + if (priv->now_playing->prev) { + status_bar_printf (priv->status_bar, DEFAULT_STATUS_BAR_TIMEOUT, + "Playlist previous"); + priv->now_playing = priv->now_playing->prev; + } else { + priv->now_playing = NULL; + gtk_widget_error_bell (priv->window); + status_bar_printf (priv->status_bar, DEFAULT_STATUS_BAR_TIMEOUT, + "Beginning of playlist"); + return; + } + } else if (priv->uris) { + status_bar_printf (priv->status_bar, DEFAULT_STATUS_BAR_TIMEOUT, + "Playlist previous: wrap"); + priv->now_playing = g_list_last (priv->uris); + } else { + gtk_action_activate (priv->open_file); + return; + } + + demo_player_load_uri (priv->player, priv->now_playing->data); +} + +static void +demo_gui_do_playlist_next (GtkAction * action, gpointer data) +{ + DemoGui *gui = DEMO_GUI (data); + DemoGuiPrivate *priv = DEMO_GUI_GET_PRIVATE (gui); + + if (priv->now_playing) { + if (priv->now_playing->next) { + status_bar_printf (priv->status_bar, DEFAULT_STATUS_BAR_TIMEOUT, + "Playlist next"); + priv->now_playing = priv->now_playing->next; + } else { + priv->now_playing = NULL; + gtk_widget_error_bell (priv->window); + status_bar_printf (priv->status_bar, DEFAULT_STATUS_BAR_TIMEOUT, + "End of playlist"); + return; + } + } else if (priv->uris) { + status_bar_printf (priv->status_bar, DEFAULT_STATUS_BAR_TIMEOUT, + "Playlist next: wrap"); + priv->now_playing = priv->uris; + } else { + gtk_action_activate (priv->open_file); + return; + } + + demo_player_load_uri (priv->player, priv->now_playing->data); +} + +static void +demo_gui_do_about_dialog (GtkAction * action, gpointer data) +{ + static gchar *authors[] = + { "Rov Juvano ", NULL }; + + gtk_show_about_dialog (NULL, + "program-name", "gst-scaletempo-demo", + "version", VERSION, + "authors", authors, + "license", "This program is free software: you can redistribute it and/or modify\n\ +it under the terms of the GNU General Public License as published by\n\ +the Free Software Foundation, either version 3 of the License, or\n\ +(at your option) any later version.\n\ +\n\ +This program is distributed in the hope that it will be useful,\n\ +but WITHOUT ANY WARRANTY; without even the implied warranty of\n\ +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n\ +GNU General Public License for more details.\n\ +\n\ +You should have received a copy of the GNU General Public License\n\ +along with this program. If not, see .", "title", "About gst-scaletempo-demo", NULL); +} + +static void +demo_gui_do_quit (gpointer source, gpointer data) +{ + gtk_main_quit (); + g_signal_emit (DEMO_GUI (data), demo_gui_signals[SIGNAL_QUITING], 0, NULL); +} + +static gboolean +demo_gui_request_set_stride (GtkSpinButton * spinbutton, gpointer data) +{ + DemoGui *gui = DEMO_GUI (data); + DemoGuiPrivate *priv = DEMO_GUI_GET_PRIVATE (gui); + guint new_stride = gtk_spin_button_get_value_as_int (spinbutton); + + status_bar_printf (priv->status_bar, DEFAULT_STATUS_BAR_TIMEOUT, + "Reqesting setting stride to %u ms", new_stride); + g_object_set (G_OBJECT (priv->player), "stride", new_stride, NULL); + return TRUE; +} + +static gboolean +demo_gui_request_set_overlap (GtkSpinButton * spinbutton, gpointer data) +{ + DemoGui *gui = DEMO_GUI (data); + DemoGuiPrivate *priv = DEMO_GUI_GET_PRIVATE (gui); + gdouble new_overlap = gtk_spin_button_get_value_as_int (spinbutton); + + status_bar_printf (priv->status_bar, DEFAULT_STATUS_BAR_TIMEOUT, + "Requesting setting overlap to %2.0lf%%", new_overlap); + g_object_set (G_OBJECT (priv->player), "overlap", new_overlap / 100.0, NULL); + return TRUE; +} + +static gboolean +demo_gui_request_set_search (GtkSpinButton * spinbutton, gpointer data) +{ + DemoGui *gui = DEMO_GUI (data); + DemoGuiPrivate *priv = DEMO_GUI_GET_PRIVATE (gui); + guint new_search = gtk_spin_button_get_value_as_int (spinbutton); + + status_bar_printf (priv->status_bar, DEFAULT_STATUS_BAR_TIMEOUT, + "Requesting setting search to %u ms", new_search); + g_object_set (G_OBJECT (priv->player), "search", new_search, NULL); + return TRUE; +} + + +/* Callbacks from signals */ +static void +demo_gui_rate_changed (DemoPlayer * player, gdouble new_rate, gpointer data) +{ + DemoGui *gui = DEMO_GUI (data); + DemoGuiPrivate *priv = DEMO_GUI_GET_PRIVATE (gui); + gchar e[6]; + + status_bar_printf (priv->status_bar, DEFAULT_STATUS_BAR_TIMEOUT, + "Rate changed to %3.2lf", new_rate); + + g_snprintf (e, 6, "%3.2f", new_rate); + gtk_entry_set_text (GTK_ENTRY (priv->rate_entry), e); +} + +static void +demo_gui_playing_started (DemoPlayer * player, gpointer data) +{ + DemoGui *gui = DEMO_GUI (data); + DemoGuiPrivate *priv = DEMO_GUI_GET_PRIVATE (gui); + + priv->is_playing = TRUE; + status_bar_printf (priv->status_bar, DEFAULT_STATUS_BAR_TIMEOUT, + "Playing started"); + + gtk_action_set_sensitive (priv->play_action, FALSE); + gtk_action_set_sensitive (priv->pause_action, TRUE); + gtk_action_set_visible (priv->play_action, FALSE); + gtk_action_set_visible (priv->pause_action, TRUE); + + if (priv->position_updater_id) { + g_source_remove (priv->position_updater_id); + priv->position_updater_id = 0; + } + update_position (gui); + priv->position_updater_id = g_timeout_add (1000, update_position, gui); +} + +static void +demo_gui_playing_paused (DemoPlayer * player, gpointer data) +{ + DemoGui *gui = DEMO_GUI (data); + DemoGuiPrivate *priv = DEMO_GUI_GET_PRIVATE (gui); + + gtk_action_set_sensitive (priv->play_action, TRUE); + gtk_action_set_sensitive (priv->pause_action, FALSE); + gtk_action_set_visible (priv->play_action, TRUE); + gtk_action_set_visible (priv->pause_action, FALSE); + + priv->is_playing = FALSE; + + if (priv->position_updater_id) + g_source_remove (priv->position_updater_id); + priv->position_updater_id = 0; + update_position (gui); + + status_bar_printf (priv->status_bar, DEFAULT_STATUS_BAR_TIMEOUT, + "Playing paused"); +} + +static void +demo_gui_playing_ended (DemoPlayer * player, gpointer data) +{ + DemoGui *gui = DEMO_GUI (data); + DemoGuiPrivate *priv = DEMO_GUI_GET_PRIVATE (gui); + + status_bar_printf (priv->status_bar, DEFAULT_STATUS_BAR_TIMEOUT, + "Playing ended"); + gtk_action_activate (priv->playlist_next); +} + +static void +demo_gui_player_errored (DemoPlayer * player, const gchar * msg, gpointer data) +{ + DemoGui *gui = DEMO_GUI (data); + DemoGuiPrivate *priv = DEMO_GUI_GET_PRIVATE (gui); + + status_bar_printf (priv->status_bar, 5, msg); +} + +static void +demo_gui_stride_changed (DemoPlayer * player, GParamSpec * pspec, gpointer data) +{ + GValueArray *gvalues = (GValueArray *) data; + DemoGui *gui = + DEMO_GUI (g_value_get_object (g_value_array_get_nth (gvalues, 0))); + GtkEntry *entry = + GTK_ENTRY (g_value_get_object (g_value_array_get_nth (gvalues, 1))); + DemoGuiPrivate *priv = DEMO_GUI_GET_PRIVATE (gui); + guint new_stride; + gchar e[6]; + + g_object_get (G_OBJECT (player), "stride", &new_stride, NULL); + status_bar_printf (priv->status_bar, DEFAULT_STATUS_BAR_TIMEOUT, + "Stride changed to %u", new_stride); + + snprintf (e, 6, "%u", new_stride); + gtk_entry_set_text (entry, e); +} + +static void +demo_gui_overlap_changed (DemoPlayer * player, + GParamSpec * pspec, gpointer data) +{ + GValueArray *gvalues = (GValueArray *) data; + DemoGui *gui = + DEMO_GUI (g_value_get_object (g_value_array_get_nth (gvalues, 0))); + GtkEntry *entry = + GTK_ENTRY (g_value_get_object (g_value_array_get_nth (gvalues, 1))); + DemoGuiPrivate *priv = DEMO_GUI_GET_PRIVATE (gui); + gdouble new_overlap; + gchar e[6]; + + g_object_get (G_OBJECT (player), "overlap", &new_overlap, NULL); + new_overlap *= 100; + status_bar_printf (priv->status_bar, DEFAULT_STATUS_BAR_TIMEOUT, + "Overlap changed to %2.0lf%%", new_overlap); + + snprintf (e, 6, "%2.0f", new_overlap); + gtk_entry_set_text (entry, e); +} + +static void +demo_gui_search_changed (DemoPlayer * player, GParamSpec * pspec, gpointer data) +{ + GValueArray *gvalues = (GValueArray *) data; + DemoGui *gui = + DEMO_GUI (g_value_get_object (g_value_array_get_nth (gvalues, 0))); + GtkEntry *entry = + GTK_ENTRY (g_value_get_object (g_value_array_get_nth (gvalues, 1))); + DemoGuiPrivate *priv = DEMO_GUI_GET_PRIVATE (gui); + guint new_search; + gchar e[6]; + + g_object_get (G_OBJECT (player), "search", &new_search, NULL); + status_bar_printf (priv->status_bar, DEFAULT_STATUS_BAR_TIMEOUT, + "Search changed to %u", new_search); + + snprintf (e, 6, "%u", new_search); + gtk_entry_set_text (entry, e); +} + + +/* method implementations */ +static void +demo_gui_set_player_func (DemoGui * gui, DemoPlayer * player) +{ + DemoGuiPrivate *priv = DEMO_GUI_GET_PRIVATE (gui); + + if (priv->player) { + g_signal_handlers_disconnect_by_func (G_OBJECT (priv->player), + G_CALLBACK (demo_gui_rate_changed), gui); + g_signal_handlers_disconnect_by_func (G_OBJECT (priv->player), + G_CALLBACK (demo_gui_playing_started), gui); + g_signal_handlers_disconnect_by_func (G_OBJECT (priv->player), + G_CALLBACK (demo_gui_playing_paused), gui); + g_signal_handlers_disconnect_by_func (G_OBJECT (priv->player), + G_CALLBACK (demo_gui_playing_ended), gui); + g_signal_handlers_disconnect_by_func (G_OBJECT (priv->player), + G_CALLBACK (demo_gui_player_errored), gui); + g_object_unref (priv->player); + } + g_object_ref (player); + priv->player = player; + g_signal_connect (G_OBJECT (priv->player), "error", + G_CALLBACK (demo_gui_player_errored), gui); + g_signal_connect (G_OBJECT (priv->player), "rate-changed", + G_CALLBACK (demo_gui_rate_changed), gui); + g_signal_connect (G_OBJECT (priv->player), "playing-started", + G_CALLBACK (demo_gui_playing_started), gui); + g_signal_connect (G_OBJECT (priv->player), "playing-paused", + G_CALLBACK (demo_gui_playing_paused), gui); + g_signal_connect (G_OBJECT (priv->player), "playing-ended", + G_CALLBACK (demo_gui_playing_ended), gui); + priv->is_playing = FALSE; +} + +static void +demo_gui_set_playlist_func (DemoGui * gui, GList * uris) +{ + DemoGuiPrivate *priv = DEMO_GUI_GET_PRIVATE (gui); + priv->uris = uris; +} + +typedef struct _ActionEntry +{ + GtkAction *action; + GtkWidget *button; + const gchar *accel; + const gchar *name; + const gchar *label; + const gchar *tooltip; + const gchar *stock_id; + GtkAccelGroup *accel_group; + GtkActionGroup *action_group; + GCallback callback; + gpointer data; +} ActionEntry; + +static GValueArray * +build_gvalue_array (guint n_values, ...) +{ + va_list args; + GValueArray *gva; + int i; + + va_start (args, n_values); + gva = g_value_array_new (n_values); + + for (i = 0; i < n_values; i++) { + GType type = va_arg (args, GType); + GValue *gval = g_new0 (GValue, 1); + if (type == G_TYPE_INT) { + gint value = va_arg (args, gint); + g_value_set_int (g_value_init (gval, G_TYPE_INT), value); + } else if (type == G_TYPE_UINT) { + guint value = va_arg (args, guint); + g_value_set_uint (g_value_init (gval, G_TYPE_UINT), value); + } else if (type == G_TYPE_DOUBLE) { + double value = va_arg (args, double); + g_value_set_double (g_value_init (gval, G_TYPE_DOUBLE), value); + } else if (type == G_TYPE_OBJECT) { + GObject *value = va_arg (args, GObject *); + g_value_set_object (g_value_init (gval, G_TYPE_OBJECT), value); + } else { + g_critical ("build_gvalue_array cannot handle type (%s)", + g_type_name (type)); + va_end (args); + return NULL; + } + g_value_array_append (gva, gval); + } + va_end (args); + return gva; +} + +static void +create_action (ActionEntry * p) +{ + p->action = gtk_action_new (p->name, p->label, p->tooltip, p->stock_id); + + gtk_action_group_add_action_with_accel (p->action_group, p->action, p->accel); + gtk_action_set_accel_group (p->action, p->accel_group); + gtk_action_connect_accelerator (p->action); + + p->button = gtk_button_new (); + gtk_action_connect_proxy (p->action, p->button); + gtk_button_set_image (GTK_BUTTON (p->button), + gtk_action_create_icon (p->action, GTK_ICON_SIZE_BUTTON)); + g_signal_connect (G_OBJECT (p->action), "activate", p->callback, p->data); +} + +static void +demo_gui_show_func (DemoGui * gui) +{ + DemoGuiPrivate *priv = DEMO_GUI_GET_PRIVATE (gui); + GtkWidget *window; + GtkAccelGroup *accel_group; + GtkActionGroup *action_group; + GtkAction *toggle_advanced, *toggle_disabled; + ActionEntry *slower_lg, *slower_sm, *faster_sm, *faster_lg, *normal, + *rewind_lg, *rewind_sm, *forward_sm, *forward_lg, *pause, *play, + *play_pause, *open_file, *playlist_prev, *playlist_next, *quit, *about; + GtkRequisition pause_size; + GtkWidget *rate_entry, *rate_label, *toolbox, *stride_ui, *overlap_ui, + *search_ui, *propbox, *adv_check, *disabled_check, *media_controls, + *amount_played, *amount_to_play, *seek_range, *seek_bar, *status_bar, + *file_menu, *file_menu_item, *media_menu_item, *demo_menu, + *demo_menu_item, *menu_bar, *toplevel_box, *media_menu; + GError *error = NULL; + + gtk_init (NULL, NULL); + window = gtk_window_new (GTK_WINDOW_TOPLEVEL); + g_signal_connect (G_OBJECT (window), "destroy", G_CALLBACK (demo_gui_do_quit), + gui); + + accel_group = gtk_accel_group_new (); + gtk_window_add_accel_group (GTK_WINDOW (window), accel_group); + action_group = gtk_action_group_new ("toolbar"); + + slower_lg = &(ActionEntry) { + NULL, NULL, + "braceleft", "slower-large", + "2x Slower", "half playback rate", + GTK_STOCK_GO_DOWN, accel_group, action_group, + G_CALLBACK (demo_gui_do_change_rate), + build_gvalue_array (2, G_TYPE_OBJECT, gui, G_TYPE_DOUBLE, 0.5) + }; + create_action (slower_lg); + + slower_sm = &(ActionEntry) { + NULL, NULL, + "bracketleft", "slower-small", + "_Slower", "decrease playback rate", + GTK_STOCK_GO_DOWN, accel_group, action_group, + G_CALLBACK (demo_gui_do_change_rate), + build_gvalue_array (2, G_TYPE_OBJECT, gui, G_TYPE_DOUBLE, pow (2, + -1.0 / 12)) + }; + create_action (slower_sm); + + faster_sm = &(ActionEntry) { + NULL, NULL, + "bracketright", "faster-small", + "_Faster", "increase playback rate", + GTK_STOCK_GO_UP, accel_group, action_group, + G_CALLBACK (demo_gui_do_change_rate), + build_gvalue_array (2, G_TYPE_OBJECT, gui, G_TYPE_DOUBLE, pow (2, + 1.0 / 12)) + }; + create_action (faster_sm); + + faster_lg = &(ActionEntry) { + NULL, NULL, + "braceright", "faster-large", + "2X Faster", "double playback rate", + GTK_STOCK_GO_UP, accel_group, action_group, + G_CALLBACK (demo_gui_do_change_rate), + build_gvalue_array (2, G_TYPE_OBJECT, gui, G_TYPE_DOUBLE, 2.0) + }; + create_action (faster_lg); + + normal = &(ActionEntry) { + NULL, NULL, + "backslash", "normal", + "_Normal", "playback normal rate", + GTK_STOCK_CLEAR, accel_group, action_group, + G_CALLBACK (demo_gui_do_set_rate), + build_gvalue_array (2, G_TYPE_OBJECT, gui, G_TYPE_DOUBLE, 1.0) + }; + create_action (normal); + + rewind_lg = &(ActionEntry) { + NULL, NULL, + "Left", "seek-rewind-large", + "Rewind (large)", "seek -30 seconds", + GTK_STOCK_MEDIA_REWIND, accel_group, action_group, + G_CALLBACK (demo_gui_do_seek), + build_gvalue_array (2, G_TYPE_OBJECT, gui, G_TYPE_INT, -30) + }; + create_action (rewind_lg); + + rewind_sm = &(ActionEntry) { + NULL, NULL, + "Left", "seek-rewind-small", + "Rewind", "seek -15 seconds", + GTK_STOCK_MEDIA_REWIND, accel_group, action_group, + G_CALLBACK (demo_gui_do_seek), + build_gvalue_array (2, G_TYPE_OBJECT, gui, G_TYPE_INT, -5) + }; + create_action (rewind_sm); + + forward_sm = &(ActionEntry) { + NULL, NULL, + "Right", "seek-forward-small", + "Forward", "seek +5 seconds", + GTK_STOCK_MEDIA_FORWARD, accel_group, action_group, + G_CALLBACK (demo_gui_do_seek), + build_gvalue_array (2, G_TYPE_OBJECT, gui, G_TYPE_INT, 5) + }; + create_action (forward_sm); + + forward_lg = &(ActionEntry) { + NULL, NULL, + "Right", "seek-forward-large", + "Forward (large)", "seek +30 seconds", + GTK_STOCK_MEDIA_FORWARD, accel_group, action_group, + G_CALLBACK (demo_gui_do_seek), + build_gvalue_array (2, G_TYPE_OBJECT, gui, G_TYPE_INT, 30) + }; + create_action (forward_lg); + + pause = &(ActionEntry) { + NULL, NULL, + "p", "pause", + "Pause", "Pause playback", + GTK_STOCK_MEDIA_PAUSE, accel_group, action_group, + G_CALLBACK (demo_gui_do_pause), gui}; + create_action (pause); + + play = &(ActionEntry) { + NULL, NULL, + "p", "play", + "Play", "Start Playback", + GTK_STOCK_MEDIA_PLAY, accel_group, action_group, + G_CALLBACK (demo_gui_do_play), gui}; + create_action (play); + gtk_widget_size_request (pause->button, &pause_size); + gtk_widget_set_size_request (play->button, pause_size.width, -1); + + play_pause = &(ActionEntry) { + NULL, NULL, + "space", "play-pause", + "Play/Pause", "Toggle playback", + NULL, accel_group, action_group, + G_CALLBACK (demo_gui_do_play_pause), gui}; + create_action (play_pause); + + open_file = &(ActionEntry) { + NULL, NULL, + "o", "open-file", + "Open File", "Open file for playing", + GTK_STOCK_OPEN, accel_group, action_group, + G_CALLBACK (demo_gui_do_open_file), gui}; + create_action (open_file); + + playlist_prev = &(ActionEntry) { + NULL, NULL, + "less", "playlist-previous", + "Previous", "Previous in playlist", + GTK_STOCK_MEDIA_PREVIOUS, accel_group, action_group, + G_CALLBACK (demo_gui_do_playlist_prev), gui}; + create_action (playlist_prev); + + playlist_next = &(ActionEntry) { + NULL, NULL, + "greater", "playlist-next", + "Next", "Next in playlist", + GTK_STOCK_MEDIA_NEXT, accel_group, action_group, + G_CALLBACK (demo_gui_do_playlist_next), gui}; + create_action (playlist_next); + + quit = &(ActionEntry) { + NULL, NULL, + "q", "quit", + "Quit", "Quit demo", + GTK_STOCK_QUIT, accel_group, action_group, + G_CALLBACK (demo_gui_do_quit), gui}; + create_action (quit); + + about = &(ActionEntry) { + NULL, NULL, + "h", "about", + "About", "About gst-scaletemo-demo", + GTK_STOCK_ABOUT, accel_group, action_group, + G_CALLBACK (demo_gui_do_about_dialog), gui}; + create_action (about); + + rate_entry = gtk_entry_new (); + rate_label = gtk_label_new ("Rate:"); + gtk_entry_set_max_length (GTK_ENTRY (rate_entry), 5); + gtk_entry_set_text (GTK_ENTRY (rate_entry), "1.0"); + gtk_entry_set_width_chars (GTK_ENTRY (rate_entry), 5); + g_signal_connect (G_OBJECT (rate_entry), "activate", + G_CALLBACK (demo_gui_do_rate_entered), gui); + + toolbox = gtk_hbox_new (FALSE, 0); + gtk_box_pack_start (GTK_BOX (toolbox), slower_sm->button, FALSE, FALSE, 2); + gtk_box_pack_start (GTK_BOX (toolbox), rate_label, FALSE, FALSE, 2); + gtk_box_pack_start (GTK_BOX (toolbox), rate_entry, FALSE, FALSE, 2); + gtk_box_pack_start (GTK_BOX (toolbox), faster_sm->button, FALSE, FALSE, 2); + gtk_box_pack_start (GTK_BOX (toolbox), normal->button, FALSE, FALSE, 2); + + + stride_ui = + gtk_spin_button_new (GTK_ADJUSTMENT (gtk_adjustment_new (60, 1, 1000, 1, + 10, 0)), 0, 0); + overlap_ui = + gtk_spin_button_new (GTK_ADJUSTMENT (gtk_adjustment_new (20, 0, 100, 5, + 10, .00001)), 0, 0); + search_ui = + gtk_spin_button_new (GTK_ADJUSTMENT (gtk_adjustment_new (14, 0, 1000, 1, + 10, 0)), 0, 0); + gtk_widget_set_sensitive (stride_ui, FALSE); + gtk_widget_set_sensitive (overlap_ui, FALSE); + gtk_widget_set_sensitive (search_ui, FALSE); + g_signal_connect (G_OBJECT (stride_ui), "output", + G_CALLBACK (demo_gui_request_set_stride), gui); + g_signal_connect (G_OBJECT (overlap_ui), "output", + G_CALLBACK (demo_gui_request_set_overlap), gui); + g_signal_connect (G_OBJECT (search_ui), "output", + G_CALLBACK (demo_gui_request_set_search), gui); + g_signal_connect (G_OBJECT (priv->player), "notify::stride", + G_CALLBACK (demo_gui_stride_changed), build_gvalue_array (2, + G_TYPE_OBJECT, gui, G_TYPE_OBJECT, stride_ui)); + g_signal_connect (G_OBJECT (priv->player), "notify::overlap", + G_CALLBACK (demo_gui_overlap_changed), build_gvalue_array (2, + G_TYPE_OBJECT, gui, G_TYPE_OBJECT, overlap_ui)); + g_signal_connect (G_OBJECT (priv->player), "notify::search", + G_CALLBACK (demo_gui_search_changed), build_gvalue_array (2, + G_TYPE_OBJECT, gui, G_TYPE_OBJECT, search_ui)); + propbox = gtk_hbox_new (FALSE, 0); + adv_check = gtk_check_button_new (); + gtk_box_pack_start (GTK_BOX (propbox), gtk_label_new ("stride:"), FALSE, + FALSE, 2); + gtk_box_pack_start (GTK_BOX (propbox), stride_ui, FALSE, FALSE, 2); + gtk_box_pack_start (GTK_BOX (propbox), gtk_label_new ("overlap:"), FALSE, + FALSE, 2); + gtk_box_pack_start (GTK_BOX (propbox), overlap_ui, FALSE, FALSE, 2); + gtk_box_pack_start (GTK_BOX (propbox), gtk_label_new ("search:"), FALSE, + FALSE, 2); + gtk_box_pack_start (GTK_BOX (propbox), search_ui, FALSE, FALSE, 2); + gtk_box_pack_start (GTK_BOX (propbox), adv_check, FALSE, FALSE, 2); + + toggle_advanced = + GTK_ACTION (gtk_toggle_action_new ("advanced", "Enable Parameters", + "Toggle advanced controls", 0)); + gtk_action_group_add_action_with_accel (action_group, toggle_advanced, + "a"); + gtk_action_set_accel_group (toggle_advanced, accel_group); + gtk_action_connect_accelerator (toggle_advanced); + gtk_toggle_action_set_active (GTK_TOGGLE_ACTION (toggle_advanced), FALSE); + gtk_action_connect_proxy (toggle_advanced, adv_check); + g_signal_connect (G_OBJECT (toggle_advanced), "activate", + G_CALLBACK (demo_gui_do_toggle_advanced), build_gvalue_array (4, + G_TYPE_OBJECT, gui, G_TYPE_OBJECT, stride_ui, G_TYPE_OBJECT, + overlap_ui, G_TYPE_OBJECT, search_ui)); + + toggle_disabled = + GTK_ACTION (gtk_toggle_action_new ("disabled", "Disable Scaletempo", + "Toggle disabling scaletempo", 0)); + gtk_action_group_add_action_with_accel (action_group, toggle_disabled, + "d"); + gtk_action_set_accel_group (toggle_disabled, accel_group); + gtk_action_connect_accelerator (toggle_disabled); + gtk_toggle_action_set_active (GTK_TOGGLE_ACTION (toggle_disabled), FALSE); + disabled_check = gtk_check_button_new (); + gtk_action_connect_proxy (toggle_disabled, disabled_check); + g_signal_connect (G_OBJECT (toggle_disabled), "activate", + G_CALLBACK (demo_gui_do_toggle_disabled), build_gvalue_array (3, + G_TYPE_OBJECT, gui, G_TYPE_OBJECT, toggle_advanced, G_TYPE_OBJECT, + propbox)); + gtk_box_pack_start (GTK_BOX (toolbox), disabled_check, FALSE, FALSE, 2); + + + media_controls = gtk_hbox_new (FALSE, 0); + gtk_box_pack_start (GTK_BOX (media_controls), playlist_prev->button, FALSE, + FALSE, 2); + gtk_box_pack_start (GTK_BOX (media_controls), rewind_sm->button, FALSE, FALSE, + 2); + gtk_box_pack_start (GTK_BOX (media_controls), play->button, FALSE, FALSE, 2); + gtk_box_pack_start (GTK_BOX (media_controls), pause->button, FALSE, FALSE, 2); + gtk_box_pack_start (GTK_BOX (media_controls), forward_sm->button, FALSE, + FALSE, 2); + gtk_box_pack_start (GTK_BOX (media_controls), playlist_next->button, FALSE, + FALSE, 2); + + amount_played = gtk_label_new ("?:??:??"); + amount_to_play = gtk_label_new ("-?:??:??"); + gtk_label_set_width_chars (GTK_LABEL (amount_played), 8); + gtk_label_set_width_chars (GTK_LABEL (amount_to_play), 8); + gtk_misc_set_alignment (GTK_MISC (amount_played), 1, 1); + gtk_misc_set_alignment (GTK_MISC (amount_to_play), 0, 1); + seek_range = + gtk_hscale_new (GTK_ADJUSTMENT (gtk_adjustment_new (0.0, 0.0, 0.0, 5.0, + 30.0, 0.00))); + gtk_range_set_update_policy (GTK_RANGE (seek_range), + GTK_UPDATE_DISCONTINUOUS); + seek_bar = gtk_hbox_new (FALSE, 0); + gtk_box_pack_start (GTK_BOX (seek_bar), amount_played, FALSE, FALSE, 2); + gtk_box_pack_start (GTK_BOX (seek_bar), seek_range, TRUE, TRUE, 2); + gtk_box_pack_start (GTK_BOX (seek_bar), amount_to_play, FALSE, FALSE, 2); + g_signal_connect (G_OBJECT (seek_range), "format-value", + G_CALLBACK (demo_gui_seek_bar_format), gui); + g_signal_connect (G_OBJECT (seek_range), "change-value", + G_CALLBACK (demo_gui_seek_bar_change), gui); + + status_bar = gtk_statusbar_new (); + + /* Menubar */ + file_menu = gtk_menu_new (); + gtk_menu_set_accel_group (GTK_MENU (file_menu), accel_group); + gtk_menu_shell_append (GTK_MENU_SHELL (file_menu), + gtk_action_create_menu_item (open_file->action)); + gtk_menu_shell_append (GTK_MENU_SHELL (file_menu), + gtk_action_create_menu_item (about->action)); + gtk_menu_shell_append (GTK_MENU_SHELL (file_menu), + gtk_action_create_menu_item (quit->action)); + file_menu_item = gtk_menu_item_new_with_mnemonic ("_File"); + gtk_menu_item_set_submenu (GTK_MENU_ITEM (file_menu_item), file_menu); + + media_menu = gtk_menu_new (); + gtk_menu_set_accel_group (GTK_MENU (media_menu), accel_group); + gtk_menu_shell_append (GTK_MENU_SHELL (media_menu), + gtk_action_create_menu_item (rewind_lg->action)); + gtk_menu_shell_append (GTK_MENU_SHELL (media_menu), + gtk_action_create_menu_item (rewind_sm->action)); + gtk_menu_shell_append (GTK_MENU_SHELL (media_menu), + gtk_action_create_menu_item (forward_sm->action)); + gtk_menu_shell_append (GTK_MENU_SHELL (media_menu), + gtk_action_create_menu_item (forward_lg->action)); + gtk_menu_shell_append (GTK_MENU_SHELL (media_menu), + gtk_action_create_menu_item (play->action)); + gtk_menu_shell_append (GTK_MENU_SHELL (media_menu), + gtk_action_create_menu_item (pause->action)); + gtk_menu_shell_append (GTK_MENU_SHELL (media_menu), + gtk_action_create_menu_item (play_pause->action)); + gtk_menu_shell_append (GTK_MENU_SHELL (media_menu), + gtk_action_create_menu_item (playlist_prev->action)); + gtk_menu_shell_append (GTK_MENU_SHELL (media_menu), + gtk_action_create_menu_item (playlist_next->action)); + media_menu_item = gtk_menu_item_new_with_mnemonic ("_Media"); + gtk_menu_item_set_submenu (GTK_MENU_ITEM (media_menu_item), media_menu); + + demo_menu = gtk_menu_new (); + gtk_menu_set_accel_group (GTK_MENU (demo_menu), accel_group); + gtk_menu_shell_append (GTK_MENU_SHELL (demo_menu), + gtk_action_create_menu_item (faster_lg->action)); + gtk_menu_shell_append (GTK_MENU_SHELL (demo_menu), + gtk_action_create_menu_item (faster_sm->action)); + gtk_menu_shell_append (GTK_MENU_SHELL (demo_menu), + gtk_action_create_menu_item (slower_sm->action)); + gtk_menu_shell_append (GTK_MENU_SHELL (demo_menu), + gtk_action_create_menu_item (slower_lg->action)); + gtk_menu_shell_append (GTK_MENU_SHELL (demo_menu), + gtk_action_create_menu_item (normal->action)); + gtk_menu_shell_append (GTK_MENU_SHELL (demo_menu), + gtk_action_create_menu_item (toggle_disabled)); + gtk_menu_shell_append (GTK_MENU_SHELL (demo_menu), + gtk_action_create_menu_item (toggle_advanced)); + demo_menu_item = gtk_menu_item_new_with_mnemonic ("_Scaletempo"); + gtk_menu_item_set_submenu (GTK_MENU_ITEM (demo_menu_item), demo_menu); + + menu_bar = gtk_menu_bar_new (); + gtk_menu_shell_append (GTK_MENU_SHELL (menu_bar), file_menu_item); + gtk_menu_shell_append (GTK_MENU_SHELL (menu_bar), media_menu_item); + gtk_menu_shell_append (GTK_MENU_SHELL (menu_bar), demo_menu_item); + + /* Toplevel Window */ + gtk_window_set_title (GTK_WINDOW (window), "Scaletempo Demo"); + toplevel_box = gtk_vbox_new (FALSE, 0); + gtk_container_set_border_width (GTK_CONTAINER (toplevel_box), 3); + gtk_container_add (GTK_CONTAINER (window), toplevel_box); + gtk_box_pack_start (GTK_BOX (toplevel_box), menu_bar, FALSE, FALSE, 2); + gtk_box_pack_start (GTK_BOX (toplevel_box), media_controls, FALSE, FALSE, 2); + gtk_box_pack_start (GTK_BOX (toplevel_box), toolbox, FALSE, FALSE, 2); + gtk_box_pack_start (GTK_BOX (toplevel_box), propbox, FALSE, FALSE, 2); + gtk_box_pack_start (GTK_BOX (toplevel_box), seek_bar, FALSE, FALSE, 2); + gtk_box_pack_start (GTK_BOX (toplevel_box), status_bar, FALSE, FALSE, 2); + + priv->window = window; + priv->rate_entry = GTK_ENTRY (rate_entry); + priv->status_bar = GTK_STATUSBAR (status_bar); + priv->seek_range = GTK_RANGE (seek_range); + priv->amount_played = GTK_LABEL (amount_played); + priv->amount_to_play = GTK_LABEL (amount_to_play); + priv->play_action = GTK_ACTION (play->action); + priv->pause_action = GTK_ACTION (pause->action); + priv->open_file = GTK_ACTION (open_file->action); + priv->playlist_next = GTK_ACTION (playlist_next->action); + + gtk_action_set_sensitive (priv->pause_action, FALSE); + gtk_action_set_visible (priv->pause_action, FALSE); + + gtk_widget_show_all (window); + gtk_widget_grab_focus (seek_range); + gtk_action_activate (priv->playlist_next); + status_bar_printf (GTK_STATUSBAR (status_bar), 5, + "Welcome to the Scaletempo demo."); + + if (!g_thread_create ((GThreadFunc) gtk_main, NULL, FALSE, &error)) { + g_signal_emit (gui, demo_gui_signals[SIGNAL_ERROR], 0, error->message); + } +} + + +/* Method wrappers */ +void +demo_gui_set_player (DemoGui * gui, DemoPlayer * player) +{ + g_return_if_fail (DEMO_IS_GUI (gui)); + g_return_if_fail (DEMO_IS_PLAYER (player)); + + DEMO_GUI_GET_CLASS (gui)->set_player (gui, player); +} + +void +demo_gui_set_playlist (DemoGui * gui, GList * uris) +{ + g_return_if_fail (DEMO_IS_GUI (gui)); + + DEMO_GUI_GET_CLASS (gui)->set_playlist (gui, uris); +} + +void +demo_gui_show (DemoGui * gui) +{ + g_return_if_fail (DEMO_IS_GUI (gui)); + + DEMO_GUI_GET_CLASS (gui)->show (gui); +} + + + +/* GObject overrides */ +static void +demo_gui_get_property (GObject * object, + guint property_id, GValue * value, GParamSpec * pspec) +{ + //DemoGui *gui = DEMO_GUI (object); + switch (property_id) { + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec); + break; + } +} + +static void +demo_gui_set_property (GObject * object, + guint property_id, const GValue * value, GParamSpec * pspec) +{ + //DemoGui *gui = DEMO_GUI (object); + switch (property_id) { + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec); + break; + } +} + + +/* GTypeInfo functions */ +static void +demo_gui_init (GTypeInstance * instance, gpointer klass) +{ + DemoGui *gui = (DemoGui *) instance; + + DemoGuiPrivate *priv = DEMO_GUI_GET_PRIVATE (gui); + priv->player = NULL; + priv->uris = NULL; + priv->now_playing = NULL; + priv->is_playing = FALSE; + priv->window = NULL; + priv->rate_entry = NULL; + priv->position_updater_id = 0; + priv->seek_range = NULL; + priv->amount_played = NULL; + priv->amount_to_play = NULL; +} + +static void +demo_gui_class_init (gpointer klass, gpointer class_data) +{ + DemoGuiClass *gui_class = (DemoGuiClass *) klass; + GObjectClass *as_object_class = G_OBJECT_CLASS (klass); + GType type; + + g_type_class_add_private (klass, sizeof (DemoGuiPrivate)); + + /* DemiPlayer */ + gui_class->set_player = demo_gui_set_player_func; + gui_class->set_playlist = demo_gui_set_playlist_func; + gui_class->show = demo_gui_show_func; + + /* GObject */ + as_object_class->get_property = demo_gui_get_property; + as_object_class->set_property = demo_gui_set_property; + + /* Properties */ + + /* Signals */ + type = G_TYPE_FROM_CLASS (klass); + demo_gui_signals[SIGNAL_ERROR] = g_signal_new ("error", type, + G_SIGNAL_RUN_FIRST, 0, NULL, NULL, + g_cclosure_marshal_VOID__STRING, G_TYPE_NONE, 1, G_TYPE_STRING); + + demo_gui_signals[SIGNAL_QUITING] = g_signal_new ("quiting", type, + G_SIGNAL_RUN_FIRST, 0, NULL, NULL, + g_cclosure_marshal_VOID__VOID, G_TYPE_NONE, 0, NULL); +} + +GType +demo_gui_get_type (void) +{ + static GType type = 0; + if (G_UNLIKELY (type == 0)) { + static const GTypeInfo info = { + sizeof /* Class */ (DemoGuiClass), + (GBaseInitFunc) NULL, + (GBaseFinalizeFunc) NULL, + (GClassInitFunc) demo_gui_class_init, + (GClassFinalizeFunc) NULL, + (gconstpointer) NULL, /* class_data */ + sizeof /* Instance */ (DemoGui), + /* n_preallocs */ 0, + (GInstanceInitFunc) demo_gui_init, + (const GTypeValueTable *) NULL + }; + type = g_type_register_static (G_TYPE_OBJECT, "DemoGui", &info, 0); + } + return type; +} diff --git a/examples/scaletempo/demo-gui.h b/examples/scaletempo/demo-gui.h new file mode 100644 index 0000000..b447d0d --- /dev/null +++ b/examples/scaletempo/demo-gui.h @@ -0,0 +1,60 @@ +/* demo-gui.h + * Copyright (C) 2008 Rov Juvano + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +#ifndef __DEMO_GUI_H_INCLUDED_ +#define __DEMO_GUI_H_INCLUDED_ + +#include +#include "demo-player.h" + +G_BEGIN_DECLS + +#define DEMO_TYPE_GUI (demo_gui_get_type()) +#define DEMO_GUI(o) (G_TYPE_CHECK_INSTANCE_CAST((o), DEMO_TYPE_GUI, DemoGui)) +#define DEMO_IS_GUI(o) (G_TYPE_CHECK_INSTANCE_TYPE((o), DEMO_TYPE_GUI)) +#define DEMO_GUI_TYPE(o) (G_TYPE_FROM_INSTANCE (o)) +#define DEMO_GUI_TYPE_NAME(o) (g_type_name (DEMO_GUI_GUI (o))) + +#define DEMO_GUI_CLASS(c) (G_TYPE_CHECK_CLASS_CAST((c), DEMO_TYPE_GUI, DemoGuiClass)) +#define DEMO_IS_GUI_CLASS(c) (G_TYPE_CHECK_CLASS_TYPE((c), DEMO_TYPE_GUI)) +#define DEMO_GUI_GET_CLASS(o) (G_TYPE_INSTANCE_GET_CLASS ((o), DEMO_TYPE_GUI, DemoGuiClass)) + +typedef struct _DemoGui DemoGui; +typedef struct _DemoGuiClass DemoGuiClass; + +struct _DemoGui +{ + GObject parent; +}; + +struct _DemoGuiClass +{ + GObjectClass parent; + void (*set_player) (DemoGui *gui, DemoPlayer *player); + void (*set_playlist) (DemoGui *gui, GList *uris); + void (*show) (DemoGui *gui); +}; + +GType demo_gui_get_type (void); + +void demo_gui_set_player (DemoGui *gui, DemoPlayer *player); +void demo_gui_set_playlist (DemoGui *gui, GList *uris); +void demo_gui_show (DemoGui *gui); + +G_END_DECLS + +#endif /* __DEMO_GUI_H_INCLUDED_ */ diff --git a/examples/scaletempo/demo-main.c b/examples/scaletempo/demo-main.c new file mode 100644 index 0000000..0902d7b --- /dev/null +++ b/examples/scaletempo/demo-main.c @@ -0,0 +1,95 @@ +/* main.c + * Copyright (C) 2008 Rov Juvano + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include "demo-player.h" +#include "demo-gui.h" + +extern GOptionGroup *gtk_get_option_group (gboolean); +extern GOptionGroup *gst_init_get_option_group (void); + +static void +handle_error_message (DemoPlayer * player, const gchar * msg, gpointer data) +{ + const gchar *format = (const gchar *) data; + g_print (format, msg); +} + +static void +handle_quit (gpointer source, gpointer data) +{ + g_main_loop_quit ((GMainLoop *) data); +} + + +int +main (int argc, char *argv[]) +{ + DemoGui *gui; + DemoPlayer *player; + gchar **uris = NULL; + GOptionContext *ctx; + GError *err = NULL; + GMainLoop *loop; + + const GOptionEntry entries[] = { + {G_OPTION_REMAINING, 0, 0, G_OPTION_ARG_FILENAME_ARRAY, &uris, + "Special option that collects any remaining arguments for us"}, + {NULL,} + }; + + if (!g_thread_supported ()) + g_thread_init (NULL); + + ctx = g_option_context_new ("uri ..."); + g_option_context_add_group (ctx, gst_init_get_option_group ()); + g_option_context_add_group (ctx, gtk_get_option_group (FALSE)); + g_option_context_add_main_entries (ctx, entries, NULL); + if (!g_option_context_parse (ctx, &argc, &argv, &err)) { + g_print ("Error initializing: %s\n", err->message); + g_error_free (err); + return -1; + } + g_option_context_free (ctx); + + gui = g_object_new (DEMO_TYPE_GUI, NULL); + player = g_object_new (DEMO_TYPE_PLAYER, NULL); + g_signal_connect (player, "error", G_CALLBACK (handle_error_message), + "PLAYER ERROR: %s\n"); + g_signal_connect (gui, "error", G_CALLBACK (handle_error_message), + "GUI ERROR: %s\n"); + demo_gui_set_player (gui, player); + + loop = g_main_loop_new (NULL, FALSE); + g_signal_connect (gui, "quiting", G_CALLBACK (handle_quit), loop); + + if (uris != NULL) { + int i, num = g_strv_length (uris); + GList *uri_list = NULL; + for (i = 0; i < num; i++) { + uri_list = g_list_append (uri_list, uris[i]); + } + demo_gui_set_playlist (gui, uri_list); + } + demo_gui_show (gui); + g_main_loop_run (loop); + + return 0; +} diff --git a/examples/scaletempo/demo-player.c b/examples/scaletempo/demo-player.c new file mode 100644 index 0000000..3ed4b71 --- /dev/null +++ b/examples/scaletempo/demo-player.c @@ -0,0 +1,756 @@ +/* demo-player.c + * Copyright (C) 2008 Rov Juvano + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +#include "demo-player.h" +#include "gst/gst.h" + +#undef G_LOG_DOMAIN +#define G_LOG_DOMAIN "demo-player" + +enum +{ + SIGNAL_ERROR, + SIGNAL_RATE_CHANGE, + SIGNAL_PLAYING_STARTED, + SIGNAL_PLAYING_PAUSED, + SIGNAL_PLAYING_ENDED, + LAST_SIGNAL +}; +static guint demo_player_signals[LAST_SIGNAL] = { 0 }; + +enum +{ + PROP_0, + PROP_RATE, + PROP_STRIDE, + PROP_OVERLAP, + PROP_SEARCH, + PROP_DISABLED +}; + +typedef struct _DemoPlayerPrivate +{ + gdouble rate; + GstElement *scaletempo; + GstElement *pipeline; + gboolean is_disabled; + GstElement *scaletempo_line; + GstElement *scalerate_line; + gboolean ignore_state_change; +} DemoPlayerPrivate; + +#define DEMO_PLAYER_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), DEMO_TYPE_PLAYER, DemoPlayerPrivate)) + + +static gboolean +no_pipeline (DemoPlayer * player) +{ + DemoPlayerPrivate *priv = DEMO_PLAYER_GET_PRIVATE (player); + if (!priv->pipeline) { + g_signal_emit (player, demo_player_signals[SIGNAL_ERROR], 0, + "No media loaded"); + return TRUE; + } + return FALSE; +} + +static gboolean +demo_player_event_listener (GstElement * host, GstEvent * event, gpointer data) +{ + DemoPlayer *player = DEMO_PLAYER (data); + DemoPlayerPrivate *priv = DEMO_PLAYER_GET_PRIVATE (player); + + if (GST_EVENT_TYPE (event) == GST_EVENT_NEWSEGMENT) { + gdouble rate, applied_rate; + gdouble new_rate; + + gst_event_parse_new_segment_full (event, NULL, &rate, &applied_rate, NULL, + NULL, NULL, NULL); + new_rate = rate * applied_rate; + if (priv->rate != new_rate) { + priv->rate = new_rate; + g_signal_emit (player, demo_player_signals[SIGNAL_RATE_CHANGE], 0, + new_rate); + } + } + + return TRUE; +} + +static void +demo_player_state_changed_cb (GstBus * bus, GstMessage * message, gpointer data) +{ + DemoPlayer *player = DEMO_PLAYER (data); + DemoPlayerPrivate *priv = DEMO_PLAYER_GET_PRIVATE (player); + GstState old, new, pending; + + if (GST_ELEMENT (GST_MESSAGE_SRC (message)) != priv->pipeline) + return; + + gst_message_parse_state_changed (message, &old, &new, &pending); + + if (pending == GST_STATE_VOID_PENDING) { + if (priv->ignore_state_change) { + priv->ignore_state_change = FALSE; + } else if (new == GST_STATE_PAUSED) { + g_signal_emit (player, demo_player_signals[SIGNAL_PLAYING_PAUSED], 0); + } else if (new == GST_STATE_PLAYING) { + g_signal_emit (player, demo_player_signals[SIGNAL_PLAYING_STARTED], 0); + } + } +} + +static void +demo_player_eos_cb (GstBus * bus, GstMessage * message, gpointer data) +{ + DemoPlayer *player = DEMO_PLAYER (data); + g_signal_emit (player, demo_player_signals[SIGNAL_PLAYING_ENDED], 0); +} + +#define MAKE_ELEMENT(line, var, type, name) \ + if ( !(var = gst_element_factory_make (type, name) ) ) { \ + g_print ("element could not be created: %s/%s\n", type, name); \ + return; \ + } \ + if (line) gst_bin_add (GST_BIN (line), var); + +#define LINK_ELEMENTS(src, sink) \ + if (!gst_element_link (src, sink)) { \ + g_warning ("Failed to link elements: %s -> %s", \ + GST_ELEMENT_NAME (src), GST_ELEMENT_NAME (sink) ); \ + return; \ + } + +static void +demo_player_build_pipeline (DemoPlayer * player) +{ + DemoPlayerPrivate *priv = DEMO_PLAYER_GET_PRIVATE (player); + GstElement *filter, *playbin, *vsink, *audioline, *format, *resample, *asink; + GstPlugin *gconf; + GstBus *bus; + gboolean has_gconf; + const gchar *audiosink_name; + GstPad *ghostpad; + + priv->pipeline = NULL; + if (!priv->scaletempo) { + return; + } + + filter = priv->scaletempo; + + MAKE_ELEMENT (NULL, playbin, "playbin", "playbin"); + + gconf = gst_default_registry_find_plugin ("gconfelements"); + has_gconf = (gconf != NULL); + gst_object_unref (gconf); + + if (has_gconf) { + MAKE_ELEMENT (NULL, vsink, "gconfvideosink", "vsink"); + g_object_set (G_OBJECT (playbin), "video_sink", vsink, NULL); + } + audiosink_name = has_gconf ? "gconfaudiosink" : "autoaudiosink"; + + audioline = gst_bin_new ("audioline"); + gst_bin_add (GST_BIN (audioline), filter); + MAKE_ELEMENT (audioline, format, "audioconvert", "format"); + MAKE_ELEMENT (audioline, resample, "audioresample", "resample"); + MAKE_ELEMENT (audioline, asink, audiosink_name, "audio_sink"); + LINK_ELEMENTS (filter, format); + LINK_ELEMENTS (format, resample); + LINK_ELEMENTS (resample, asink); + + gst_pad_add_event_probe (gst_element_get_static_pad (asink, "sink"), + G_CALLBACK (demo_player_event_listener), player); + + ghostpad = gst_element_get_static_pad (filter, "sink"); + gst_element_add_pad (audioline, gst_ghost_pad_new ("sink", ghostpad)); + gst_object_unref (ghostpad); + g_object_set (G_OBJECT (playbin), "audio-sink", audioline, NULL); + + bus = gst_pipeline_get_bus (GST_PIPELINE (playbin)); + gst_bus_add_signal_watch (bus); + g_signal_connect (bus, "message::state-changed", + G_CALLBACK (demo_player_state_changed_cb), player); + g_signal_connect (bus, "message::eos", G_CALLBACK (demo_player_eos_cb), + player); + gst_object_unref (bus); + + priv->scaletempo = filter; + priv->pipeline = playbin; + + priv->scaletempo_line = audioline; + MAKE_ELEMENT (NULL, priv->scalerate_line, "gconfaudiosink", + "scaling_audio_sink"); + gst_pad_add_event_probe (gst_element_get_static_pad (priv->scalerate_line, + "sink"), G_CALLBACK (demo_player_event_listener), player); + g_object_ref (priv->scaletempo_line); + g_object_ref (priv->scalerate_line); +} + + +/* method implementations */ +static void +_set_rate (DemoPlayer * player, gdouble new_rate, gint second) +{ + DemoPlayerPrivate *priv; + gint64 pos; + GstSeekType seek_type; + + + if (new_rate == 0) { + g_signal_emit (player, demo_player_signals[SIGNAL_ERROR], 0, + "Cannot set playback to zero. Pausing instead."); + demo_player_pause (player); + } + + priv = DEMO_PLAYER_GET_PRIVATE (player); + + if (second < 0) { + GstFormat fmt = GST_FORMAT_TIME; + seek_type = GST_SEEK_TYPE_SET; + if (!gst_element_query_position (priv->pipeline, &fmt, &pos)) { + // This should be the default but too many upstream elements seek anyway + pos = GST_CLOCK_TIME_NONE; + seek_type = GST_SEEK_TYPE_NONE; + } + } else { + seek_type = GST_SEEK_TYPE_SET; + pos = second * GST_SECOND; + } + + if (!gst_element_seek (priv->pipeline, new_rate, + GST_FORMAT_TIME, GST_SEEK_FLAG_FLUSH | GST_SEEK_FLAG_ACCURATE, + seek_type, pos, GST_SEEK_TYPE_NONE, GST_CLOCK_TIME_NONE)) { + g_signal_emit (player, demo_player_signals[SIGNAL_ERROR], 0, + "Unable to change playback rate"); + } else { + priv->ignore_state_change = TRUE; + } +} + +static void +demo_player_scale_rate_func (DemoPlayer * player, gdouble scale) +{ + DemoPlayerPrivate *priv; + if (no_pipeline (player)) + return; + + priv = DEMO_PLAYER_GET_PRIVATE (player); + + if (scale != 1.0) { + g_message ("Scaling Rate by: %3.2f", scale); + _set_rate (player, priv->rate * scale, -1); + } +} + +static void +demo_player_set_rate_func (DemoPlayer * player, gdouble new_rate) +{ + DemoPlayerPrivate *priv; + + if (no_pipeline (player)) + return; + + priv = DEMO_PLAYER_GET_PRIVATE (player); + + if (priv->rate != new_rate) { + g_message ("Setting Rate to: %3.2f", new_rate); + _set_rate (player, new_rate, -1); + } +} + +static gboolean +_set_state_and_wait (DemoPlayer * player, + GstState new_state, GstClockTime timeout, const gchar * error_msg) +{ + DemoPlayerPrivate *priv = DEMO_PLAYER_GET_PRIVATE (player); + GstStateChangeReturn ret = gst_element_set_state (priv->pipeline, new_state); + if (ret == GST_STATE_CHANGE_ASYNC) { + ret = gst_element_get_state (priv->pipeline, NULL, NULL, timeout); + } + if (ret != GST_STATE_CHANGE_SUCCESS) { + g_signal_emit (player, demo_player_signals[SIGNAL_ERROR], 0, error_msg); + return FALSE; + } + return TRUE; +} + +static void +demo_player_load_uri_func (DemoPlayer * player, gchar * uri) +{ + DemoPlayerPrivate *priv = DEMO_PLAYER_GET_PRIVATE (player); + GstState end_state; + gdouble rate; + + if (!priv->pipeline) { + demo_player_build_pipeline (player); + if (!priv->pipeline) { + g_signal_emit (player, demo_player_signals[SIGNAL_ERROR], 0, + "Could not build player"); + return; + } + } + if (!g_str_has_prefix (uri, "file:///")) { + GError *err = NULL; + if (g_path_is_absolute (uri)) { + uri = g_filename_to_uri (uri, NULL, &err); + } else { + gchar *curdir = g_get_current_dir (); + gchar *absolute_path = g_strconcat (curdir, G_DIR_SEPARATOR_S, uri, NULL); + uri = g_filename_to_uri (absolute_path, NULL, &err); + g_free (absolute_path); + g_free (curdir); + } + if (err) { + gchar *msg = g_strconcat ("Could not load uri: ", err->message, NULL); + g_signal_emit (player, demo_player_signals[SIGNAL_ERROR], 0, msg); + return; + } + } + + g_message ("Loading URI: %s", uri); + + end_state = + (GST_STATE (priv->pipeline) == + GST_STATE_PLAYING) ? GST_STATE_PLAYING : GST_STATE_PAUSED; + if (!_set_state_and_wait (player, GST_STATE_NULL, 10 * GST_SECOND, + "Unable to load uri")) + return; + + g_object_set (G_OBJECT (priv->pipeline), "uri", uri, NULL); + + rate = priv->rate; + if (rate && rate != 1.0) { + _set_state_and_wait (player, GST_STATE_PAUSED, 10 * GST_SECOND, + "Unable to keep playback rate"); + _set_rate (player, rate, -1); + } + + gst_element_set_state (priv->pipeline, end_state); +} + +static void +demo_player_play_func (DemoPlayer * player) +{ + DemoPlayerPrivate *priv; + GstStateChangeReturn ret; + + if (no_pipeline (player)) + return; + + priv = DEMO_PLAYER_GET_PRIVATE (player); + + if (GST_STATE (priv->pipeline) == GST_STATE_PLAYING) { + g_signal_emit (player, demo_player_signals[SIGNAL_ERROR], 0, + "Already playing"); + return; + } + + g_debug ("Starting to Play"); + ret = gst_element_set_state (priv->pipeline, GST_STATE_PLAYING); + if (ret == GST_STATE_CHANGE_FAILURE) { + g_signal_emit (player, demo_player_signals[SIGNAL_ERROR], 0, + "Unable to start playback"); + return; + } +} + +static void +demo_player_pause_func (DemoPlayer * player) +{ + DemoPlayerPrivate *priv; + GstStateChangeReturn ret; + + if (no_pipeline (player)) + return; + + priv = DEMO_PLAYER_GET_PRIVATE (player); + + if (GST_STATE (priv->pipeline) == GST_STATE_PAUSED) { + g_signal_emit (player, demo_player_signals[SIGNAL_ERROR], 0, + "Already paused"); + return; + } + + g_debug ("Starting to Pause"); + ret = gst_element_set_state (priv->pipeline, GST_STATE_PAUSED); + if (ret == GST_STATE_CHANGE_FAILURE) { + g_signal_emit (player, demo_player_signals[SIGNAL_ERROR], 0, + "Unable to pause playback"); + return; + } +} + +static void +_seek_to (DemoPlayer * player, gint new_second) +{ + DemoPlayerPrivate *priv = DEMO_PLAYER_GET_PRIVATE (player); + if (!gst_element_seek (priv->pipeline, priv->rate, + GST_FORMAT_TIME, GST_SEEK_FLAG_FLUSH, + GST_SEEK_TYPE_SET, new_second * GST_SECOND, + GST_SEEK_TYPE_NONE, GST_CLOCK_TIME_NONE)) { + g_signal_emit (player, demo_player_signals[SIGNAL_ERROR], 0, "Seek failed"); + return; + } + + priv->ignore_state_change = TRUE; +} + +static void +demo_player_seek_by_func (DemoPlayer * player, gint seconds) +{ + gint pos; + + if (no_pipeline (player)) + return; + + g_debug ("Seeking by: %i", seconds); + + pos = demo_player_get_position (player); + if (pos < 0) { + g_signal_emit (player, demo_player_signals[SIGNAL_ERROR], 0, + "Seek-by failed: could not determine position"); + return; + } + + _seek_to (player, MAX (0, pos + seconds)); +} + +static void +demo_player_seek_to_func (DemoPlayer * player, gint second) +{ + gint new_second; + + if (no_pipeline (player)) + return; + + g_debug ("Seeking to: %i", second); + + if (second < 0) { + gint dur = demo_player_get_duration (player); + if (dur < 0) { + g_signal_emit (player, demo_player_signals[SIGNAL_ERROR], 0, + "Seek-to failed: could not determine duration"); + return; + } + new_second = MAX (0, dur + second); + } else { + new_second = second; + } + + _seek_to (player, new_second); +} + +static gint +demo_player_get_position_func (DemoPlayer * player) +{ + DemoPlayerPrivate *priv = DEMO_PLAYER_GET_PRIVATE (player); + gint64 pos; + GstFormat fmt = GST_FORMAT_TIME; + + if (!priv->pipeline) + return -1; + + if (!gst_element_query_position (priv->pipeline, &fmt, &pos) || pos < 0) { + return -1; + } + + return (gint) (pos / GST_SECOND); +} + +static gint +demo_player_get_duration_func (DemoPlayer * player) +{ + DemoPlayerPrivate *priv = DEMO_PLAYER_GET_PRIVATE (player); + gint64 dur; + GstFormat fmt = GST_FORMAT_TIME; + + if (!priv->pipeline) + return -1; + + if (!gst_element_query_duration (priv->pipeline, &fmt, &dur) || dur < 0) { + return -1; + } + + return (gint) (dur / GST_SECOND); +} + + +/* Method wrappers */ +void +demo_player_scale_rate (DemoPlayer * player, gdouble scale) +{ + g_return_if_fail (DEMO_IS_PLAYER (player)); + + DEMO_PLAYER_GET_CLASS (player)->scale_rate (player, scale); +} + +void +demo_player_set_rate (DemoPlayer * player, gdouble new_rate) +{ + g_return_if_fail (DEMO_IS_PLAYER (player)); + + DEMO_PLAYER_GET_CLASS (player)->set_rate (player, new_rate); +} + +void +demo_player_load_uri (DemoPlayer * player, gchar * uri) +{ + g_return_if_fail (DEMO_IS_PLAYER (player)); + + DEMO_PLAYER_GET_CLASS (player)->load_uri (player, uri); +} + +void +demo_player_play (DemoPlayer * player) +{ + g_return_if_fail (DEMO_IS_PLAYER (player)); + + DEMO_PLAYER_GET_CLASS (player)->play (player); +} + +void +demo_player_pause (DemoPlayer * player) +{ + g_return_if_fail (DEMO_IS_PLAYER (player)); + + DEMO_PLAYER_GET_CLASS (player)->pause (player); +} + +void +demo_player_seek_by (DemoPlayer * player, gint seconds) +{ + g_return_if_fail (DEMO_IS_PLAYER (player)); + + DEMO_PLAYER_GET_CLASS (player)->seek_by (player, seconds); +} + +void +demo_player_seek_to (DemoPlayer * player, gint second) +{ + g_return_if_fail (DEMO_IS_PLAYER (player)); + + DEMO_PLAYER_GET_CLASS (player)->seek_to (player, second); +} + +gint +demo_player_get_position (DemoPlayer * player) +{ + g_return_val_if_fail (DEMO_IS_PLAYER (player), -1); + + return DEMO_PLAYER_GET_CLASS (player)->get_position (player); +} + +gint +demo_player_get_duration (DemoPlayer * player) +{ + g_return_val_if_fail (DEMO_IS_PLAYER (player), -1); + + return DEMO_PLAYER_GET_CLASS (player)->get_duration (player); +} + +/* GObject overrides */ +static void +demo_player_get_property (GObject * object, + guint property_id, GValue * value, GParamSpec * pspec) +{ + DemoPlayer *player = DEMO_PLAYER (object); + DemoPlayerPrivate *priv = DEMO_PLAYER_GET_PRIVATE (player); + switch (property_id) { + case PROP_RATE: + g_value_set_double (value, priv->rate); + break; + case PROP_STRIDE: + g_object_get_property (G_OBJECT (priv->scaletempo), "stride", value); + break; + case PROP_OVERLAP: + g_object_get_property (G_OBJECT (priv->scaletempo), "overlap", value); + break; + case PROP_SEARCH: + g_object_get_property (G_OBJECT (priv->scaletempo), "search", value); + break; + case PROP_DISABLED: + g_value_set_boolean (value, priv->is_disabled); + break; + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec); + break; + } +} + +static void +demo_player_set_property (GObject * object, + guint property_id, const GValue * value, GParamSpec * pspec) +{ + DemoPlayer *player = DEMO_PLAYER (object); + DemoPlayerPrivate *priv = DEMO_PLAYER_GET_PRIVATE (player); + switch (property_id) { + case PROP_STRIDE: + g_object_set_property (G_OBJECT (priv->scaletempo), "stride", value); + break; + case PROP_OVERLAP: + g_object_set_property (G_OBJECT (priv->scaletempo), "overlap", value); + break; + case PROP_SEARCH: + g_object_set_property (G_OBJECT (priv->scaletempo), "search", value); + break; + case PROP_DISABLED:{ + gdouble rate = priv->rate; + gint pos = demo_player_get_position (player); + GstState end_state; + GstElement *new_sink; + + priv->is_disabled = g_value_get_boolean (value); + + g_debug ("Scaletempo: %s", priv->is_disabled ? "disabled" : "enabled"); + + end_state = + (GST_STATE (priv->pipeline) == + GST_STATE_PLAYING) ? GST_STATE_PLAYING : GST_STATE_PAUSED; + if (!_set_state_and_wait (player, GST_STATE_NULL, 10 * GST_SECOND, + "Unable to disable")) + break; + + new_sink = + (priv->is_disabled) ? priv->scalerate_line : priv->scaletempo_line; + g_object_set (G_OBJECT (priv->pipeline), "audio-sink", new_sink, NULL); + + if (pos > 0 || (rate && rate != 1.0)) { + _set_state_and_wait (player, GST_STATE_PAUSED, 10 * GST_SECOND, + "Unable to keep playback position and rate"); + _set_rate (player, rate, pos); + } + + gst_element_set_state (priv->pipeline, end_state); + break; + } + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec); + break; + } +} + + +/* GTypeInfo functions */ +static void +demo_player_init (GTypeInstance * instance, gpointer klass) +{ + DemoPlayer *player = (DemoPlayer *) instance; + DemoPlayerPrivate *priv = DEMO_PLAYER_GET_PRIVATE (player); + priv->scaletempo = gst_element_factory_make ("scaletempo", "scaletempo"); + if (!priv->scaletempo) { + g_error ("Unable to make scaletempo element."); + } + priv->rate = 1.0; + priv->pipeline = NULL; + priv->ignore_state_change = FALSE; + priv->is_disabled = FALSE; +} + +static void +demo_player_class_init (gpointer klass, gpointer class_data) +{ + DemoPlayerClass *player_class = (DemoPlayerClass *) klass; + GObjectClass *as_object_class = G_OBJECT_CLASS (klass); + GType type; + + g_type_class_add_private (klass, sizeof (DemoPlayerPrivate)); + + /* DemoPlayer */ + player_class->scale_rate = demo_player_scale_rate_func; + player_class->set_rate = demo_player_set_rate_func; + player_class->load_uri = demo_player_load_uri_func; + player_class->play = demo_player_play_func; + player_class->pause = demo_player_pause_func; + player_class->seek_by = demo_player_seek_by_func; + player_class->seek_to = demo_player_seek_to_func; + player_class->get_position = demo_player_get_position_func; + player_class->get_duration = demo_player_get_duration_func; + + /* GObject */ + as_object_class->get_property = demo_player_get_property; + as_object_class->set_property = demo_player_set_property; + + /* Properties */ + g_object_class_install_property (as_object_class, PROP_RATE, + g_param_spec_double ("rate", "Rate", "Current playback rate", + -128, 128, 1.0, G_PARAM_READABLE)); + + g_object_class_install_property (as_object_class, PROP_STRIDE, + g_param_spec_uint ("stride", "Stride Length", + "Length in milliseconds to output each stride", 1, 10000, 60, + G_PARAM_READWRITE)); + + g_object_class_install_property (as_object_class, PROP_OVERLAP, + g_param_spec_double ("overlap", "Overlap Length", + "Percentage of stride to overlap", 0, 1, .2, G_PARAM_READWRITE)); + + g_object_class_install_property (as_object_class, PROP_SEARCH, + g_param_spec_uint ("search", "Search Length", + "Length in milliseconds to search for best overlap position", 0, + 10000, 14, G_PARAM_READWRITE)); + + g_object_class_install_property (as_object_class, PROP_DISABLED, + g_param_spec_boolean ("disabled", "disable scaletempo", + "Disable scaletempo and scale bothe tempo and pitch", FALSE, + G_PARAM_READWRITE)); + + /* Signals */ + type = G_TYPE_FROM_CLASS (klass); + demo_player_signals[SIGNAL_ERROR] = g_signal_new ("error", type, + G_SIGNAL_RUN_FIRST, 0, NULL, NULL, + g_cclosure_marshal_VOID__STRING, G_TYPE_NONE, 1, G_TYPE_STRING); + + demo_player_signals[SIGNAL_RATE_CHANGE] = g_signal_new ("rate-changed", type, + G_SIGNAL_RUN_FIRST, 0, NULL, NULL, + g_cclosure_marshal_VOID__DOUBLE, G_TYPE_NONE, 1, G_TYPE_DOUBLE); + + demo_player_signals[SIGNAL_PLAYING_STARTED] = + g_signal_new ("playing-started", type, G_SIGNAL_RUN_FIRST, 0, NULL, NULL, + g_cclosure_marshal_VOID__VOID, G_TYPE_NONE, 0); + + demo_player_signals[SIGNAL_PLAYING_PAUSED] = + g_signal_new ("playing-paused", type, G_SIGNAL_RUN_FIRST, 0, NULL, NULL, + g_cclosure_marshal_VOID__VOID, G_TYPE_NONE, 0); + + demo_player_signals[SIGNAL_PLAYING_ENDED] = + g_signal_new ("playing-ended", type, G_SIGNAL_RUN_FIRST, 0, NULL, NULL, + g_cclosure_marshal_VOID__VOID, G_TYPE_NONE, 0); +} + +GType +demo_player_get_type (void) +{ + static GType type = 0; + if (G_UNLIKELY (type == 0)) { + static const GTypeInfo info = { + sizeof /* Class */ (DemoPlayerClass), + (GBaseInitFunc) NULL, + (GBaseFinalizeFunc) NULL, + (GClassInitFunc) demo_player_class_init, + (GClassFinalizeFunc) NULL, + (gconstpointer) NULL, /* class_data */ + sizeof /* Instance */ (DemoPlayer), + /* n_preallocs */ 0, + (GInstanceInitFunc) demo_player_init, + (const GTypeValueTable *) NULL + }; + type = g_type_register_static (G_TYPE_OBJECT, "DemoPlayer", &info, 0); + } + return type; +} diff --git a/examples/scaletempo/demo-player.h b/examples/scaletempo/demo-player.h new file mode 100644 index 0000000..ff521fc --- /dev/null +++ b/examples/scaletempo/demo-player.h @@ -0,0 +1,71 @@ +/* gui.h + * Copyright (C) 2008 Rov Juvano + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +#ifndef __DEMO_PLAYER_H_INCLUDED_ +#define __DEMO_PLAYER_H_INCLUDED_ + +#include + +G_BEGIN_DECLS + +#define DEMO_TYPE_PLAYER (demo_player_get_type()) +#define DEMO_PLAYER(o) (G_TYPE_CHECK_INSTANCE_CAST((o), DEMO_TYPE_PLAYER, DemoPlayer)) +#define DEMO_IS_PLAYER(o) (G_TYPE_CHECK_INSTANCE_TYPE((o), DEMO_TYPE_PLAYER)) +#define DEMO_PLAYER_TYPE(o) (G_TYPE_FROM_INSTANCE (o)) +#define DEMO_PLAYER_TYPE_NAME(o) (g_type_name (DEMO_PLAYER_TYPE (o))) + +#define DEMO_PLAYER_CLASS(c) (G_TYPE_CHECK_CLASS_CAST((c), DEMO_TYPE_PLAYER, DemoPlayerClass)) +#define DEMO_IS_PLAYER_CLASS(c) (G_TYPE_CHECK_CLASS_TYPE((c), DEMO_TYPE_PLAYER)) +#define DEMO_PLAYER_GET_CLASS(o) (G_TYPE_INSTANCE_GET_CLASS ((o), DEMO_TYPE_PLAYER, DemoPlayerClass)) + +typedef struct _DemoPlayer DemoPlayer; +typedef struct _DemoPlayerClass DemoPlayerClass; + +struct _DemoPlayer +{ + GObject parent; +}; + +struct _DemoPlayerClass +{ + GObjectClass parent; + void (*scale_rate) (DemoPlayer *player, gdouble scale); + void (*set_rate) (DemoPlayer *player, gdouble new_rate); + void (*load_uri) (DemoPlayer *player, gchar *uri); + void (*play) (DemoPlayer *player); + void (*pause) (DemoPlayer *player); + void (*seek_by) (DemoPlayer *player, gint seconds); + void (*seek_to) (DemoPlayer *player, gint seconds); + gint (*get_position) (DemoPlayer *player); + gint (*get_duration) (DemoPlayer *player); +}; + +GType demo_player_get_type (void); + +void demo_player_scale_rate (DemoPlayer *player, gdouble scale); +void demo_player_set_rate (DemoPlayer *player, gdouble new_rate); +void demo_player_load_uri (DemoPlayer *player, gchar *uri); +void demo_player_play (DemoPlayer *player); +void demo_player_pause (DemoPlayer *player); +void demo_player_seek_by (DemoPlayer *player, gint seconds); +void demo_player_seek_to (DemoPlayer *player, gint second); +gint demo_player_get_position (DemoPlayer *player); +gint demo_player_get_duration (DemoPlayer *player); + +G_END_DECLS + +#endif /* __DEMO_PLAYER_H_INCLUDED_ */ diff --git a/gst/scaletempo/Makefile.am b/gst/scaletempo/Makefile.am new file mode 100644 index 0000000..a3c8399 --- /dev/null +++ b/gst/scaletempo/Makefile.am @@ -0,0 +1,13 @@ +plugin_LTLIBRARIES = libgstscaletempoplugin.la + +# sources used to compile this plug-in +libgstscaletempoplugin_la_SOURCES = gstscaletempoplugin.c gstscaletempo.c + +# flags used to compile this plugin +# add other _CFLAGS and _LIBS as needed +libgstscaletempoplugin_la_CFLAGS = $(GST_CFLAGS) +libgstscaletempoplugin_la_LIBADD = $(GST_LIBS) $(GST_BASE_LIBS) +libgstscaletempoplugin_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS) + +# headers we need but don't want installed +noinst_HEADERS = gstscaletempo.h diff --git a/gst/scaletempo/gstscaletempo.c b/gst/scaletempo/gstscaletempo.c new file mode 100644 index 0000000..923c2fd --- /dev/null +++ b/gst/scaletempo/gstscaletempo.c @@ -0,0 +1,748 @@ +/* + * GStreamer + * Copyright (C) 2008 Rov Juvano + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with this library; if not, write to the + * Free Software Foundation, Inc., 59 Temple Place - Suite 330, + * Boston, MA 02111-1307, USA. + */ + +/** + * SECTION:element-scaletempo + * + * + * + * Scale tempo while maintaining pitch + * (WSOLA-like technique with cross correlation) + * Inspired by SoundTouch library by Olli Parviainen + * + * + * Use Sceletempo to apply playback rates without the chipmunk effect. + * + * Example pipelines + * + * + * filesrc location=media.ext ! decodebin name=d \ + * d. ! queue ! audioconvert ! audioresample ! scaletempo ! audioconvert ! audioresample ! autoaudiosink \ + * d. ! queue ! ffmpegcolorspace ! autovideosink + * + * OR + * + * playbin uri=... audio_sink="scaletempo ! audioconvert ! audioresample ! autoaudiosink" + * + * When an application sends a seek event with rate != 1.0, Scaletempo applies + * the rate change by scaling the tempo without scaling the pitch. + * + * + * Scaletempo works by producing audio in constant sized chunks (a "stride") but + * consuming chunks proportional to the playback rate. + * + * + * Scaletempo then smooths the output by blending the end of one stride with + * the next ("overlap"). + * + * + * Scaletempo smooths the overlap further by searching within the input buffer + * for the best overlap position. Scaletempo uses a statistical cross correlation + * (roughly a dot-product). Scaletempo consumes most of its CPU cycles here. + * + * + */ + +/* + * Note: frame = audio key unit (i.e. one sample for each channel) + */ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include +#include +#include /* for memset */ + +#include "gstscaletempo.h" + +GST_DEBUG_CATEGORY_STATIC (gst_scaletempo_debug); +#define GST_CAT_DEFAULT gst_scaletempo_debug + +/* Filter signals and args */ +enum +{ + LAST_SIGNAL +}; + +enum +{ + PROP_0, + PROP_RATE, + PROP_STRIDE, + PROP_OVERLAP, + PROP_SEARCH, +}; + +#define SUPPORTED_CAPS \ +GST_STATIC_CAPS ( \ + "audio/x-raw-float, " \ + "rate = (int) [ 1, MAX ], " \ + "channels = (int) [ 1, MAX ], " \ + "endianness = (int) BYTE_ORDER, " \ + "width = (int) 32;" \ + "audio/x-raw-int, " \ + "rate = (int) [ 1, MAX ], " \ + "channels = (int) [ 1, MAX ], " \ + "endianness = (int) BYTE_ORDER, " \ + "width = (int) 16, " \ + "depth = (int) 16, " \ + "signed = (boolean) true;" \ +) + +static GstStaticPadTemplate sink_template = GST_STATIC_PAD_TEMPLATE ("sink", + GST_PAD_SINK, + GST_PAD_ALWAYS, + SUPPORTED_CAPS); + +static GstStaticPadTemplate src_template = GST_STATIC_PAD_TEMPLATE ("src", + GST_PAD_SRC, + GST_PAD_ALWAYS, + SUPPORTED_CAPS); + +#define DEBUG_INIT(bla) GST_DEBUG_CATEGORY_INIT (gst_scaletempo_debug, "scaletempo", 0, "scaletempo element"); + +GST_BOILERPLATE_FULL (GstScaletempo, gst_scaletempo, GstBaseTransform, + GST_TYPE_BASE_TRANSFORM, DEBUG_INIT); + +typedef struct _GstScaletempoPrivate +{ + gdouble scale; + /* parameters */ + guint ms_stride; + gdouble percent_overlap; + guint ms_search; + /* caps */ + gboolean use_int; + guint samples_per_frame; /* AKA number of channels */ + guint bytes_per_sample; + guint bytes_per_frame; + guint sample_rate; + /* stride */ + gdouble frames_stride_scaled; + gdouble frames_stride_error; + guint bytes_stride; + gdouble bytes_stride_scaled; + guint bytes_queue_max; + guint bytes_queued; + guint bytes_to_slide; + gint8 *buf_queue; + /* overlap */ + guint samples_overlap; + guint samples_standing; + guint bytes_overlap; + guint bytes_standing; + gpointer buf_overlap; + gpointer table_blend; + void (*output_overlap) (GstScaletempo * scaletempo, gpointer out_buf, + guint bytes_off); + /* best overlap */ + guint frames_search; + gpointer buf_pre_corr; + gpointer table_window; + guint (*best_overlap_offset) (GstScaletempo * scaletempo); + /* gstreamer */ + gint64 segment_start; + /* threads */ + gboolean reinit_buffers; +} GstScaletempoPrivate; +#define GST_SCALETEMPO_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), GST_TYPE_SCALETEMPO, GstScaletempoPrivate)) + + +static guint +best_overlap_offset_float (GstScaletempo * scaletempo) +{ + GstScaletempoPrivate *p = GST_SCALETEMPO_GET_PRIVATE (scaletempo); + gfloat *pw, *po, *ppc, *search_start; + gfloat best_corr = G_MININT; + guint best_off = 0; + gint i, off; + + pw = p->table_window; + po = p->buf_overlap; + po += p->samples_per_frame; + ppc = p->buf_pre_corr; + for (i = p->samples_per_frame; i < p->samples_overlap; i++) { + *ppc++ = *pw++ * *po++; + } + + search_start = (gfloat *) p->buf_queue + p->samples_per_frame; + for (off = 0; off < p->frames_search; off++) { + gfloat corr = 0; + gfloat *ps = search_start; + ppc = p->buf_pre_corr; + for (i = p->samples_per_frame; i < p->samples_overlap; i++) { + corr += *ppc++ * *ps++; + } + if (corr > best_corr) { + best_corr = corr; + best_off = off; + } + search_start += p->samples_per_frame; + } + + return best_off * p->bytes_per_frame; +} + +/* buffer padding for loop optimization: sizeof(gint32) * (loop_size - 1) */ +#define UNROLL_PADDING (4*3) +static guint +best_overlap_offset_s16 (GstScaletempo * scaletempo) +{ + GstScaletempoPrivate *p = GST_SCALETEMPO_GET_PRIVATE (scaletempo); + gint32 *pw, *ppc; + gint16 *po, *search_start; + gint64 best_corr = G_MININT64; + guint best_off = 0; + guint off; + glong i; + + pw = p->table_window; + po = p->buf_overlap; + po += p->samples_per_frame; + ppc = p->buf_pre_corr; + for (i = p->samples_per_frame; i < p->samples_overlap; i++) { + *ppc++ = (*pw++ * *po++) >> 15; + } + + search_start = (gint16 *) p->buf_queue + p->samples_per_frame; + for (off = 0; off < p->frames_search; off++) { + gint64 corr = 0; + gint16 *ps = search_start; + ppc = p->buf_pre_corr; + ppc += p->samples_overlap - p->samples_per_frame; + ps += p->samples_overlap - p->samples_per_frame; + i = -(p->samples_overlap - p->samples_per_frame); + do { + corr += ppc[i + 0] * ps[i + 0]; + corr += ppc[i + 1] * ps[i + 1]; + corr += ppc[i + 2] * ps[i + 2]; + corr += ppc[i + 3] * ps[i + 3]; + i += 4; + } while (i < 0); + if (corr > best_corr) { + best_corr = corr; + best_off = off; + } + search_start += p->samples_per_frame; + } + + return best_off * p->bytes_per_frame; +} + +static void +output_overlap_float (GstScaletempo * scaletempo, + gpointer buf_out, guint bytes_off) +{ + GstScaletempoPrivate *p = GST_SCALETEMPO_GET_PRIVATE (scaletempo); + gfloat *pout = buf_out; + gfloat *pb = p->table_blend; + gfloat *po = p->buf_overlap; + gfloat *pin = (gfloat *) (p->buf_queue + bytes_off); + gint i; + for (i = 0; i < p->samples_overlap; i++) { + *pout++ = *po - *pb++ * (*po - *pin++); + po++; + } +} + +static void +output_overlap_s16 (GstScaletempo * scaletempo, + gpointer buf_out, guint bytes_off) +{ + GstScaletempoPrivate *p = GST_SCALETEMPO_GET_PRIVATE (scaletempo); + gint16 *pout = buf_out; + gint32 *pb = p->table_blend; + gint16 *po = p->buf_overlap; + gint16 *pin = (gint16 *) (p->buf_queue + bytes_off); + gint i; + for (i = 0; i < p->samples_overlap; i++) { + *pout++ = *po - ((*pb++ * (*po - *pin++)) >> 16); + po++; + } +} + +static guint +fill_queue (GstScaletempo * scaletempo, GstBuffer * buf_in, guint offset) +{ + GstScaletempoPrivate *p = GST_SCALETEMPO_GET_PRIVATE (scaletempo); + guint bytes_in = GST_BUFFER_SIZE (buf_in) - offset; + guint offset_unchanged = offset; + + if (p->bytes_to_slide > 0) { + if (p->bytes_to_slide < p->bytes_queued) { + guint bytes_in_move = p->bytes_queued - p->bytes_to_slide; + memmove (p->buf_queue, p->buf_queue + p->bytes_to_slide, bytes_in_move); + p->bytes_to_slide = 0; + p->bytes_queued = bytes_in_move; + } else { + guint bytes_in_skip; + p->bytes_to_slide -= p->bytes_queued; + bytes_in_skip = MIN (p->bytes_to_slide, bytes_in); + p->bytes_queued = 0; + p->bytes_to_slide -= bytes_in_skip; + offset += bytes_in_skip; + bytes_in -= bytes_in_skip; + } + } + + if (bytes_in > 0) { + guint bytes_in_copy = MIN (p->bytes_queue_max - p->bytes_queued, bytes_in); + memcpy (p->buf_queue + p->bytes_queued, + GST_BUFFER_DATA (buf_in) + offset, bytes_in_copy); + p->bytes_queued += bytes_in_copy; + offset += bytes_in_copy; + } + + return offset - offset_unchanged; +} + +static void +reinit_buffers (GstScaletempo * scaletempo) +{ + GstScaletempoPrivate *p = GST_SCALETEMPO_GET_PRIVATE (scaletempo); + gint i, j; + guint frames_overlap; + guint new_size; + + guint frames_stride = p->ms_stride * p->sample_rate / 1000.0; + p->bytes_stride = frames_stride * p->bytes_per_frame; + + /* overlap */ + frames_overlap = frames_stride * p->percent_overlap; + if (frames_overlap < 1) { /* if no overlap */ + p->bytes_overlap = 0; + p->bytes_standing = p->bytes_stride; + p->samples_standing = p->bytes_standing / p->bytes_per_sample; + p->output_overlap = NULL; + } else { + guint prev_overlap = p->bytes_overlap; + p->bytes_overlap = frames_overlap * p->bytes_per_frame; + p->samples_overlap = frames_overlap * p->samples_per_frame; + p->bytes_standing = p->bytes_stride - p->bytes_overlap; + p->samples_standing = p->bytes_standing / p->bytes_per_sample; + p->buf_overlap = g_realloc (p->buf_overlap, p->bytes_overlap); + p->table_blend = g_realloc (p->table_blend, p->samples_overlap * 4); /* sizeof (gint32|gfloat) */ + if (p->bytes_overlap > prev_overlap) { + memset (p->buf_overlap + prev_overlap, 0, + p->bytes_overlap - prev_overlap); + } + if (p->use_int) { + gint32 *pb = p->table_blend; + gint64 blend = 0; + for (i = 0; i < frames_overlap; i++) { + gint32 v = blend / frames_overlap; + for (j = 0; j < p->samples_per_frame; j++) { + *pb++ = v; + } + blend += 65535; /* 2^16 */ + } + p->output_overlap = output_overlap_s16; + } else { + gfloat *pb = p->table_blend; + gfloat t = (gfloat) frames_overlap; + for (i = 0; i < frames_overlap; i++) { + gfloat v = i / t; + for (j = 0; j < p->samples_per_frame; j++) { + *pb++ = v; + } + } + p->output_overlap = output_overlap_float; + } + } + + /* best overlap */ + p->frames_search = + (frames_overlap <= 1) ? 0 : p->ms_search * p->sample_rate / 1000.0; + if (p->frames_search < 1) { /* if no search */ + p->best_overlap_offset = NULL; + } else { + guint bytes_pre_corr = (p->samples_overlap - p->samples_per_frame) * 4; /* sizeof (gint32|gfloat) */ + p->buf_pre_corr = + g_realloc (p->buf_pre_corr, bytes_pre_corr + UNROLL_PADDING); + p->table_window = g_realloc (p->table_window, bytes_pre_corr); + if (p->use_int) { + gint64 t = frames_overlap; + gint32 n = 8589934588LL / (t * t); /* 4 * (2^31 - 1) / t^2 */ + gint32 *pw; + + memset (p->buf_pre_corr + bytes_pre_corr, 0, UNROLL_PADDING); + pw = p->table_window; + for (i = 1; i < frames_overlap; i++) { + gint32 v = (i * (t - i) * n) >> 15; + for (j = 0; j < p->samples_per_frame; j++) { + *pw++ = v; + } + } + p->best_overlap_offset = best_overlap_offset_s16; + } else { + gfloat *pw = p->table_window; + for (i = 1; i < frames_overlap; i++) { + gfloat v = i * (frames_overlap - i); + for (j = 0; j < p->samples_per_frame; j++) { + *pw++ = v; + } + } + p->best_overlap_offset = best_overlap_offset_float; + } + } + + new_size = + (p->frames_search + frames_stride + frames_overlap) * p->bytes_per_frame; + if (p->bytes_queued > new_size) { + if (p->bytes_to_slide > p->bytes_queued) { + p->bytes_to_slide -= p->bytes_queued; + p->bytes_queued = 0; + } else { + guint new_queued = MIN (p->bytes_queued - p->bytes_to_slide, new_size); + memmove (p->buf_queue, + p->buf_queue + p->bytes_queued - new_queued, new_queued); + p->bytes_to_slide = 0; + p->bytes_queued = new_queued; + } + } + p->bytes_queue_max = new_size; + p->buf_queue = g_realloc (p->buf_queue, p->bytes_queue_max); + + p->bytes_stride_scaled = p->bytes_stride * p->scale; + p->frames_stride_scaled = p->bytes_stride_scaled / p->bytes_per_frame; + + GST_DEBUG + ("%.3f scale, %.3f stride_in, %i stride_out, %i standing, %i overlap, %i search, %i queue, %s mode", + p->scale, p->frames_stride_scaled, + (gint) (p->bytes_stride / p->bytes_per_frame), + (gint) (p->bytes_standing / p->bytes_per_frame), + (gint) (p->bytes_overlap / p->bytes_per_frame), p->frames_search, + (gint) (p->bytes_queue_max / p->bytes_per_frame), + (p->use_int ? "s16" : "float")); + + p->reinit_buffers = FALSE; +} + + +/* GstBaseTransform vmethod implementations */ +static GstFlowReturn +gst_scaletempo_transform (GstBaseTransform * trans, + GstBuffer * inbuf, GstBuffer * outbuf) +{ + GstScaletempo *scaletempo = GST_SCALETEMPO (trans); + GstScaletempoPrivate *p = GST_SCALETEMPO_GET_PRIVATE (scaletempo); + + gint8 *pout = (gint8 *) GST_BUFFER_DATA (outbuf); + guint offset_in = fill_queue (scaletempo, inbuf, 0); + guint bytes_out = 0; + while (p->bytes_queued >= p->bytes_queue_max) { + guint bytes_off = 0; + gdouble frames_to_slide; + guint frames_to_stride_whole; + + // output stride + if (p->output_overlap) { + if (p->best_overlap_offset) { + bytes_off = p->best_overlap_offset (scaletempo); + } + p->output_overlap (scaletempo, pout, bytes_off); + } + memcpy (pout + p->bytes_overlap, + p->buf_queue + bytes_off + p->bytes_overlap, p->bytes_standing); + pout += p->bytes_stride; + bytes_out += p->bytes_stride; + + // input stride + memcpy (p->buf_overlap, + p->buf_queue + bytes_off + p->bytes_stride, p->bytes_overlap); + frames_to_slide = p->frames_stride_scaled + p->frames_stride_error; + frames_to_stride_whole = (gint) frames_to_slide; + p->bytes_to_slide = frames_to_stride_whole * p->bytes_per_frame; + p->frames_stride_error = frames_to_slide - frames_to_stride_whole; + + offset_in += fill_queue (scaletempo, inbuf, offset_in); + } + + GST_BUFFER_SIZE (outbuf) = bytes_out; + GST_BUFFER_TIMESTAMP (outbuf) = + (GST_BUFFER_TIMESTAMP (outbuf) - p->segment_start) / p->scale + + p->segment_start; + //GST_BUFFER_DURATION (outbuf) = bytes_out * GST_SECOND / (p->bytes_per_frame * p->sample_rate); + return GST_FLOW_OK; +} + +static gboolean +gst_scaletempo_transform_size (GstBaseTransform * trans, + GstPadDirection direction, + GstCaps * caps, guint size, GstCaps * othercaps, guint * othersize) +{ + if (direction == GST_PAD_SINK) { + GstScaletempo *scaletempo = GST_SCALETEMPO (trans); + GstScaletempoPrivate *priv = GST_SCALETEMPO_GET_PRIVATE (scaletempo); + gint bytes_to_out; + + if (priv->reinit_buffers) + reinit_buffers (scaletempo); + + bytes_to_out = size + priv->bytes_queued - priv->bytes_to_slide; + if (bytes_to_out < (gint) priv->bytes_queue_max) { + *othersize = 0; + } else { + /* while (total_buffered - stride_length * n >= queue_max) n++ */ + *othersize = priv->bytes_stride * ((guint) ( + (bytes_to_out - priv->bytes_queue_max + + /* rounding protection */ priv->bytes_per_frame) + / priv->bytes_stride_scaled) + 1); + } + + return TRUE; + } + return FALSE; +} + +static gboolean +gst_scaletempo_sink_event (GstBaseTransform * trans, GstEvent * event) +{ + if (GST_EVENT_TYPE (event) == GST_EVENT_NEWSEGMENT) { + GstScaletempo *scaletempo = GST_SCALETEMPO (trans); + GstScaletempoPrivate *priv = GST_SCALETEMPO_GET_PRIVATE (scaletempo); + + gboolean update; + gdouble rate, applied_rate; + GstFormat format; + gint64 start, stop, position; + + gst_event_parse_new_segment_full (event, &update, &rate, &applied_rate, + &format, &start, &stop, &position); + + if (priv->scale != rate) { + if (ABS (rate - 1.0) < 1e-10) { + priv->scale = 1.0; + gst_base_transform_set_passthrough (GST_BASE_TRANSFORM (scaletempo), + TRUE); + } else { + gst_base_transform_set_passthrough (GST_BASE_TRANSFORM (scaletempo), + FALSE); + priv->scale = rate; + priv->bytes_stride_scaled = priv->bytes_stride * priv->scale; + priv->frames_stride_scaled = + priv->bytes_stride_scaled / priv->bytes_per_frame; + GST_DEBUG ("%.3f scale, %.3f stride_in, %i stride_out", priv->scale, + priv->frames_stride_scaled, + (gint) (priv->bytes_stride / priv->bytes_per_frame)); + + priv->bytes_to_slide = 0; + } + } + + if (priv->scale != 1.0) { + priv->segment_start = start; + applied_rate = priv->scale; + rate = 1.0; + //gst_event_unref (event); + event = gst_event_new_new_segment_full (update, rate, applied_rate, + format, start, stop, position); + gst_pad_push_event (GST_BASE_TRANSFORM_SRC_PAD (trans), event); + return FALSE; + } + } + parent_class->event (trans, event); + return TRUE; +} + +static gboolean +gst_scaletempo_set_caps (GstBaseTransform * trans, + GstCaps * incaps, GstCaps * outcaps) +{ + GstScaletempo *scaletempo = GST_SCALETEMPO (trans); + GstScaletempoPrivate *priv = GST_SCALETEMPO_GET_PRIVATE (scaletempo); + GstStructure *s = gst_caps_get_structure (incaps, 0); + + gint width, bps, nch, rate; + gboolean use_int; + const gchar *type = gst_structure_get_name (s); + if (g_str_equal (type, "audio/x-raw-int")) { + use_int = TRUE; + gst_structure_get_int (s, "depth", &width); + } else if (g_str_equal (type, "audio/x-raw-float")) { + use_int = FALSE; + gst_structure_get_int (s, "width", &width); + } else { + return FALSE; + } + bps = width / 8; + + gst_structure_get_int (s, "channels", &nch); + gst_structure_get_int (s, "rate", &rate); + + GST_DEBUG ("caps: %s seek, " + "%5" G_GUINT32_FORMAT " rate, " + "%2" G_GUINT32_FORMAT " nch, " + "%2" G_GUINT32_FORMAT " bps", type, rate, nch, bps); + + if (rate != priv->sample_rate + || nch != priv->samples_per_frame + || bps != priv->bytes_per_sample || use_int != priv->use_int) { + priv->sample_rate = rate; + priv->samples_per_frame = nch; + priv->bytes_per_sample = bps; + priv->bytes_per_frame = nch * bps; + priv->use_int = use_int; + priv->reinit_buffers = TRUE; + } + + return TRUE; +} + + +/* GObject vmethod implementations */ +static void +gst_scaletempo_get_property (GObject * object, + guint prop_id, GValue * value, GParamSpec * pspec) +{ + GstScaletempo *scaletempo = GST_SCALETEMPO (object); + GstScaletempoPrivate *priv = GST_SCALETEMPO_GET_PRIVATE (scaletempo); + + switch (prop_id) { + case PROP_RATE: + g_value_set_double (value, priv->scale); + break; + case PROP_STRIDE: + g_value_set_uint (value, priv->ms_stride); + break; + case PROP_OVERLAP: + g_value_set_double (value, priv->percent_overlap); + break; + case PROP_SEARCH: + g_value_set_uint (value, priv->ms_search); + break; + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); + break; + } +} + +static void +gst_scaletempo_set_property (GObject * object, + guint prop_id, const GValue * value, GParamSpec * pspec) +{ + GstScaletempo *scaletempo = GST_SCALETEMPO (object); + GstScaletempoPrivate *priv = GST_SCALETEMPO_GET_PRIVATE (scaletempo); + + switch (prop_id) { + case PROP_STRIDE:{ + guint new_value = g_value_get_uint (value); + if (priv->ms_stride != new_value) { + priv->ms_stride = new_value; + priv->reinit_buffers = TRUE; + } + break; + } + case PROP_OVERLAP:{ + gdouble new_value = g_value_get_double (value); + if (priv->percent_overlap != new_value) { + priv->percent_overlap = new_value; + priv->reinit_buffers = TRUE; + } + break; + } + case PROP_SEARCH:{ + guint new_value = g_value_get_uint (value); + if (priv->ms_search != new_value) { + priv->ms_search = new_value; + priv->reinit_buffers = TRUE; + } + break; + } + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); + break; + } +} + +static void +gst_scaletempo_base_init (gpointer klass) +{ + static GstElementDetails element_details = { + "Scaletempo", + "Filter/Effect/Rate", + "Sync audio tempo with playback rate", + "Rov Juvano " + }; + GstElementClass *element_class = GST_ELEMENT_CLASS (klass); + + gst_element_class_add_pad_template (element_class, + gst_static_pad_template_get (&src_template)); + gst_element_class_add_pad_template (element_class, + gst_static_pad_template_get (&sink_template)); + gst_element_class_set_details (element_class, &element_details); +} + +static void +gst_scaletempo_class_init (GstScaletempoClass * klass) +{ + GObjectClass *gobject_class = G_OBJECT_CLASS (klass); + GstBaseTransformClass *basetransform_class = GST_BASE_TRANSFORM_CLASS (klass); + + g_type_class_add_private (klass, sizeof (GstScaletempoPrivate)); + + gobject_class->get_property = GST_DEBUG_FUNCPTR (gst_scaletempo_get_property); + gobject_class->set_property = GST_DEBUG_FUNCPTR (gst_scaletempo_set_property); + + g_object_class_install_property (gobject_class, PROP_RATE, + g_param_spec_double ("rate", "Playback Rate", "Current playback rate", + G_MININT, G_MAXINT, 1.0, G_PARAM_READABLE)); + + g_object_class_install_property (gobject_class, PROP_STRIDE, + g_param_spec_uint ("stride", "Stride Length", + "Length in milliseconds to output each stride", 1, 5000, 30, + G_PARAM_READWRITE)); + + g_object_class_install_property (gobject_class, PROP_OVERLAP, + g_param_spec_double ("overlap", "Overlap Length", + "Percentage of stride to overlap", 0, 1, .2, G_PARAM_READWRITE)); + + g_object_class_install_property (gobject_class, PROP_SEARCH, + g_param_spec_uint ("search", "Search Length", + "Length in milliseconds to search for best overlap position", 0, 500, + 14, G_PARAM_READWRITE)); + + basetransform_class->event = GST_DEBUG_FUNCPTR (gst_scaletempo_sink_event); + basetransform_class->set_caps = GST_DEBUG_FUNCPTR (gst_scaletempo_set_caps); + basetransform_class->transform_size = + GST_DEBUG_FUNCPTR (gst_scaletempo_transform_size); + basetransform_class->transform = GST_DEBUG_FUNCPTR (gst_scaletempo_transform); +} + +static void +gst_scaletempo_init (GstScaletempo * scaletempo, GstScaletempoClass * klass) +{ + GstScaletempoPrivate *priv = GST_SCALETEMPO_GET_PRIVATE (scaletempo); + /* defaults */ + priv->ms_stride = 30; + priv->percent_overlap = .2; + priv->ms_search = 14; + + /* uninitialized */ + priv->scale = 0; + priv->sample_rate = 0; + priv->frames_stride_error = 0; + priv->bytes_stride = 0; + priv->bytes_queued = 0; + priv->bytes_to_slide = 0; + priv->segment_start = 0; +} diff --git a/gst/scaletempo/gstscaletempo.h b/gst/scaletempo/gstscaletempo.h new file mode 100644 index 0000000..af2e8bb --- /dev/null +++ b/gst/scaletempo/gstscaletempo.h @@ -0,0 +1,49 @@ +/* + * GStreamer + * Copyright (C) 2008 Rov Juvano + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with this library; if not, write to the + * Free Software Foundation, Inc., 59 Temple Place - Suite 330, + * Boston, MA 02111-1307, USA. + */ + +#ifndef __GST_SCALETEMPO_H__ +#define __GST_SCALETEMPO_H__ + +#include +#include + +G_BEGIN_DECLS +#define GST_TYPE_SCALETEMPO (gst_scaletempo_get_type()) +#define GST_SCALETEMPO(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj), GST_TYPE_SCALETEMPO, GstScaletempo)) +#define GST_SCALETEMPO_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass), GST_TYPE_SCALETEMPO, GstScaletempoClass)) +#define GST_IS_SCALETEMPO(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj), GST_TYPE_SCALETEMPO)) +#define GST_IS_SCALETEMPO_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass), GST_TYPE_SCALETEMPO)) +typedef struct _GstScaletempo GstScaletempo; +typedef struct _GstScaletempoClass GstScaletempoClass; + +struct _GstScaletempo +{ + GstBaseTransform element; +}; + +struct _GstScaletempoClass +{ + GstBaseTransformClass parent_class; +}; + +GType gst_scaletempo_get_type (void); + +G_END_DECLS +#endif /* __GST_SCALETEMPO_H__ */ diff --git a/gst/scaletempo/gstscaletempoplugin.c b/gst/scaletempo/gstscaletempoplugin.c new file mode 100644 index 0000000..24e16e8 --- /dev/null +++ b/gst/scaletempo/gstscaletempoplugin.c @@ -0,0 +1,74 @@ +/* + * GStreamer + * Copyright (C) 2008 Rov Juvano + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER + * DEALINGS IN THE SOFTWARE. + * + * Alternatively, the contents of this file may be used under the + * GNU Lesser General Public License Version 2.1 (the "LGPL"), in + * which case the following provisions apply instead of the ones + * mentioned above: + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with this library; if not, write to the + * Free Software Foundation, Inc., 59 Temple Place - Suite 330, + * Boston, MA 02111-1307, USA. + */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include "gstscaletempo.h" + +/* entry point to initialize the plug-in + * initialize the plug-in itself + * register the element factories and pad templates + * register the features + * + * exchange the string 'plugin' with your elemnt name + */ + +static gboolean +plugin_init (GstPlugin * plugin) +{ + return gst_element_register (plugin, "scaletempo", GST_RANK_NONE, + GST_TYPE_SCALETEMPO); +} + +/* this is the structure that gstreamer looks for to register plugins + * + * exchange the strings 'plugin' and 'Template plugin' with you plugin name and + * description + */ +GST_PLUGIN_DEFINE (GST_VERSION_MAJOR, GST_VERSION_MINOR, + "scaletempo", "Scale audio tempo in sync with playback rate", + plugin_init, VERSION, "LGPL", "GStreamer", + "http://gstreamer.freedesktop.org/") -- 2.7.4