+++ /dev/null
-/* GStreamer
- * Copyright (C) <2008> Thijs Vermeir <thijsvermeir@gmail.com>
- *
- * 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 "config.h"
-#endif
-#include "string.h"
-
-#include "gstsrtenc.h"
-#include <gst/controller/gstcontroller.h>
-
-GST_DEBUG_CATEGORY_STATIC (srtenc_debug);
-#define GST_CAT_DEFAULT srtenc_debug
-
-enum
-{
- ARG_0,
- ARG_TIMESTAMP,
- ARG_DURATION
-};
-
-static GstStaticPadTemplate src_template = GST_STATIC_PAD_TEMPLATE ("src",
- GST_PAD_SRC,
- GST_PAD_ALWAYS,
- GST_STATIC_CAPS ("application/x-subtitle"));
-
-static GstStaticPadTemplate sink_template = GST_STATIC_PAD_TEMPLATE ("sink",
- GST_PAD_SINK,
- GST_PAD_ALWAYS,
- GST_STATIC_CAPS ("text/plain; text/x-pango-markup"));
-
-static GstFlowReturn gst_srtenc_chain (GstPad * pad, GstBuffer * buf);
-static gboolean plugin_init (GstPlugin * plugin);
-static gchar *gst_srtenc_timeconvertion (GstSrtenc * srtenc, GstBuffer * buf);
-static gchar *gst_srtenc_timestamp_to_string (GstClockTime timestamp);
-static void gst_srtenc_base_init (gpointer klass);
-static void gst_srtenc_class_init (GstSrtencClass * klass);
-static void gst_srtenc_get_property (GObject * object, guint prop_id,
- GValue * value, GParamSpec * pspec);
-static void gst_srtenc_init (GstSrtenc * src, GstSrtencClass * klass);
-static void gst_srtenc_reset (GstSrtenc * srtenc);
-static void gst_srtenc_set_property (GObject * object, guint prop_id,
- const GValue * value, GParamSpec * pspec);
-
-GST_BOILERPLATE (GstSrtenc, gst_srtenc, GstElement, GST_TYPE_ELEMENT);
-
-static gchar *
-gst_srtenc_timestamp_to_string (GstClockTime timestamp)
-{
- guint h = timestamp / (3600 * GST_SECOND);
-
- timestamp -= h * 3600 * GST_SECOND;
- guint m = timestamp / (60 * GST_SECOND);
-
- timestamp -= m * 60 * GST_SECOND;
- guint s = timestamp / GST_SECOND;
-
- timestamp -= s * GST_SECOND;
- guint ms = timestamp / GST_MSECOND;
-
- return g_strdup_printf ("%.2d:%.2d:%.2d,%.3d", h, m, s, ms);
-}
-
-static gchar *
-gst_srtenc_timeconvertion (GstSrtenc * srtenc, GstBuffer * buf)
-{
- gchar *start_time =
- gst_srtenc_timestamp_to_string (GST_BUFFER_TIMESTAMP (buf) +
- srtenc->timestamp);
- gchar *stop_time =
- gst_srtenc_timestamp_to_string (GST_BUFFER_TIMESTAMP (buf) +
- srtenc->timestamp + GST_BUFFER_DURATION (buf) + srtenc->duration);
- gchar *string = g_strdup_printf ("%s --> %s\n", start_time, stop_time);
-
- g_free (start_time);
- g_free (stop_time);
- return string;
-}
-
-static GstFlowReturn
-gst_srtenc_chain (GstPad * pad, GstBuffer * buf)
-{
- GstSrtenc *srtenc;
- GstBuffer *new_buffer;
- gchar *timing;
- gchar *string;
-
- srtenc = GST_SRTENC (gst_pad_get_parent_element (pad));
- gst_object_sync_values (G_OBJECT (srtenc), GST_BUFFER_TIMESTAMP (buf));
- timing = gst_srtenc_timeconvertion (srtenc, buf);
- string = g_strdup_printf ("%d\n%s", srtenc->counter++, timing);
- g_free (timing);
- new_buffer =
- gst_buffer_new_and_alloc (strlen (string) + GST_BUFFER_SIZE (buf) + 2);
- memcpy (GST_BUFFER_DATA (new_buffer), string, strlen (string));
- memcpy (GST_BUFFER_DATA (new_buffer) + strlen (string), GST_BUFFER_DATA (buf),
- GST_BUFFER_SIZE (buf));
- memcpy (GST_BUFFER_DATA (new_buffer) + GST_BUFFER_SIZE (new_buffer) - 2,
- "\n\n", 2);
- g_free (string);
-
- gst_buffer_unref (buf);
-
- return gst_pad_push (srtenc->srcpad, new_buffer);
-}
-
-static void
-gst_srtenc_base_init (gpointer klass)
-{
- GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
-
- gst_element_class_add_pad_template (element_class,
- gst_static_pad_template_get (&sink_template));
- gst_element_class_add_pad_template (element_class,
- gst_static_pad_template_get (&src_template));
-
- gst_element_class_set_details_simple (element_class,
- "Srt encoder", "Codec/Encoder/Subtitle",
- "Srt subtitle encoder", "Thijs Vermeir <thijsvermeir@gmail.com>");
-}
-
-static void
-gst_srtenc_reset (GstSrtenc * srtenc)
-{
- srtenc->counter = 1;
-}
-
-static GstStateChangeReturn
-gst_srtenc_change_state (GstElement * element, GstStateChange transition)
-{
- GstStateChangeReturn ret;
- GstSrtenc *srtenc = GST_SRTENC (element);
-
- ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
- if (ret == GST_STATE_CHANGE_FAILURE)
- return ret;
-
- switch (transition) {
- case GST_STATE_CHANGE_PAUSED_TO_READY:
- gst_srtenc_reset (srtenc);
- break;
- default:
- break;
- }
-
- return ret;
-}
-
-static void
-gst_srtenc_get_property (GObject * object,
- guint prop_id, GValue * value, GParamSpec * pspec)
-{
- GstSrtenc *srtenc;
-
- srtenc = GST_SRTENC (object);
-
- switch (prop_id) {
- case ARG_TIMESTAMP:
- g_value_set_int64 (value, srtenc->timestamp);
- break;
- case ARG_DURATION:
- g_value_set_int64 (value, srtenc->duration);
- break;
- default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
- break;
- }
-}
-
-static void
-gst_srtenc_set_property (GObject * object,
- guint prop_id, const GValue * value, GParamSpec * pspec)
-{
-
- GstSrtenc *srtenc;
-
- srtenc = GST_SRTENC (object);
-
- switch (prop_id) {
- case ARG_TIMESTAMP:
- srtenc->timestamp = g_value_get_int64 (value);
- break;
- case ARG_DURATION:
- srtenc->duration = g_value_get_int64 (value);
- break;
- default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
- break;
- }
-}
-
-static void
-gst_srtenc_class_init (GstSrtencClass * klass)
-{
- GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
- GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
-
- gobject_class->set_property = GST_DEBUG_FUNCPTR (gst_srtenc_set_property);
- gobject_class->get_property = GST_DEBUG_FUNCPTR (gst_srtenc_get_property);
-
- element_class->change_state = GST_DEBUG_FUNCPTR (gst_srtenc_change_state);
-
- g_object_class_install_property (gobject_class, ARG_TIMESTAMP,
- g_param_spec_int64 ("timestamp", "Offset for the starttime",
- "Offset for the starttime for the subtitles", G_MININT64, G_MAXINT64,
- 0, G_PARAM_READWRITE | GST_PARAM_CONTROLLABLE));
- g_object_class_install_property (gobject_class, ARG_DURATION,
- g_param_spec_int64 ("duration", "Offset for the duration",
- "Offset for the duration of the subtitles", G_MININT64, G_MAXINT64,
- 0, G_PARAM_READWRITE | GST_PARAM_CONTROLLABLE));
-
- GST_DEBUG_CATEGORY_INIT (srtenc_debug, "srtenc", 0, "srt subtitle encoder");
-}
-
-static void
-gst_srtenc_init (GstSrtenc * srtenc, GstSrtencClass * klass)
-{
- gst_srtenc_reset (srtenc);
-
- srtenc->srcpad = gst_pad_new_from_static_template (&src_template, "src");
- gst_element_add_pad (GST_ELEMENT (srtenc), srtenc->srcpad);
- srtenc->sinkpad = gst_pad_new_from_static_template (&sink_template, "sink");
- gst_element_add_pad (GST_ELEMENT (srtenc), srtenc->sinkpad);
- gst_pad_set_chain_function (srtenc->sinkpad, gst_srtenc_chain);
-}
-
-static gboolean
-plugin_init (GstPlugin * plugin)
-{
- return gst_element_register (plugin, "srtenc", GST_RANK_NONE,
- GST_TYPE_SRTENC);
-}
-
-GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
- GST_VERSION_MINOR,
- "srtenc",
- "Srt subtitle encoder",
- plugin_init, VERSION, GST_LICENSE, GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN)
+++ /dev/null
-/* GStreamer
- * Copyright (C) <2008> Thijs Vermeir <thijsvermeir@gmail.com>
- *
- * 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_SRTENC_H__
-#define __GST_SRTENC_H__
-
-#include <gst/gst.h>
-
-G_BEGIN_DECLS
-#define GST_TYPE_SRTENC \
- (gst_srtenc_get_type())
-#define GST_SRTENC(obj) \
- (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_SRTENC,GstSrtenc))
-#define GST_SRTENC_CLASS(klass) \
- (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_SRTENC,GstSrtenc))
-#define GST_IS_SRTENC(obj) \
- (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_SRTENC))
-#define GST_IS_SRTENC_CLASS(klass) \
- (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_SRTENC))
-
-typedef struct _GstSrtenc GstSrtenc;
-typedef struct _GstSrtencClass GstSrtencClass;
-
-struct _GstSrtencClass
-{
- GstElementClass parent_class;
-};
-
-struct _GstSrtenc
-{
- GstElement element;
-
- GstPad *sinkpad;
- GstPad *srcpad;
-
- /* properties */
- gint64 timestamp;
- gint64 duration;
-
- /* counter for subtitle entry */
- guint counter;
-};
-
-GType gst_srtenc_get_type (void);
-
-G_END_DECLS
-#endif
projects / platform / upstream / gstreamer.git / commitdiff