-/* -*- Mode: C; tab-width: 2; indent-tabs-mode: t; c-basic-offset: 2 -*- */
-/* GStreamer
+/* -*- mOde: C; tab-width: 2; indent-tabs-mode: t; c-basic-offset: 2 -*- */
+/* GStreamer .wav encoder
* Copyright (C) <2002> Iain Holmes <iain@prettypeople.org>
+ * Copyright (C) <2006> Tim-Philipp Müller <tim centricular net>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* Boston, MA 02111-1307, USA.
*
*/
-
+/**
+ * SECTION:element-wavenc
+ *
+ * Format a audio stream into the wav format.
+ *
+ */
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <string.h>
-#include <gstwavenc.h>
-#include <riff.h>
-
-static void gst_wavenc_base_init (gpointer g_class);
-static void gst_wavenc_class_init (GstWavEncClass *klass);
-static void gst_wavenc_init (GstWavEnc *wavenc);
-static void gst_wavenc_chain (GstPad *pad, GstData *_data);
+#include "gstwavenc.h"
-#define WAVE_FORMAT_PCM 0x0001
+#include <gst/riff/riff-media.h>
-#define WRITE_U32(buf, x) *(buf) = (unsigned char) (x&0xff);\
-*((buf)+1) = (unsigned char)((x>>8)&0xff);\
-*((buf)+2) = (unsigned char)((x>>16)&0xff);\
-*((buf)+3) = (unsigned char)((x>>24)&0xff);
+GST_DEBUG_CATEGORY_STATIC (wavenc_debug);
+#define GST_CAT_DEFAULT wavenc_debug
-#define WRITE_U16(buf, x) *(buf) = (unsigned char) (x&0xff);\
-*((buf)+1) = (unsigned char)((x>>8)&0xff);
-
-struct riff_struct {
- guint8 id[4]; /* RIFF */
- guint32 len;
- guint8 wav_id[4]; /* WAVE */
-};
-
-struct chunk_struct {
- guint8 id[4];
- guint32 len;
+struct riff_struct
+{
+ guint8 id[4]; /* RIFF */
+ guint32 len;
+ guint8 wav_id[4]; /* WAVE */
};
-struct common_struct {
- guint16 wFormatTag;
- guint16 wChannels;
- guint32 dwSamplesPerSec;
- guint32 dwAvgBytesPerSec;
- guint16 wBlockAlign;
- guint16 wBitsPerSample; /* Only for PCM */
+struct chunk_struct
+{
+ guint8 id[4];
+ guint32 len;
};
-struct wave_header {
- struct riff_struct riff;
- struct chunk_struct format;
- struct common_struct common;
- struct chunk_struct data;
+struct common_struct
+{
+ guint16 wFormatTag;
+ guint16 wChannels;
+ guint32 dwSamplesPerSec;
+ guint32 dwAvgBytesPerSec;
+ guint16 wBlockAlign;
+ guint16 wBitsPerSample; /* Only for PCM */
};
-static GstElementDetails gst_wavenc_details = GST_ELEMENT_DETAILS (
- "WAV encoder",
- "Codec/Audio/Encoder",
- "Encode raw audio into WAV",
- "Iain Holmes <iain@prettypeople.org>"
-);
-
-static GstPadTemplate *srctemplate, *sinktemplate;
-
-GST_PAD_TEMPLATE_FACTORY (sink_factory,
- "sink",
- GST_PAD_SINK,
- GST_PAD_ALWAYS,
- GST_CAPS_NEW (
- "wavenc_raw",
- "audio/x-raw-int",
- "endianness", GST_PROPS_INT (G_LITTLE_ENDIAN),
- "signed", GST_PROPS_BOOLEAN (TRUE),
- "width", GST_PROPS_LIST (
- GST_PROPS_INT (8),
- GST_PROPS_INT (16)
- ),
- "depth", GST_PROPS_LIST (
- GST_PROPS_INT (8),
- GST_PROPS_INT (16)
- ),
- "rate", GST_PROPS_INT_RANGE (8000, 48000),
- "channels", GST_PROPS_INT_RANGE (1, 2)
- )
-)
-
-GST_PAD_TEMPLATE_FACTORY (src_factory,
- "src",
- GST_PAD_SRC,
- GST_PAD_ALWAYS,
- GST_CAPS_NEW (
- "wavenc_wav",
- "audio/x-wav",
- NULL
- )
-)
-
-enum {
- PROP_0,
- PROP_METADATA
+struct wave_header
+{
+ struct riff_struct riff;
+ struct chunk_struct format;
+ struct common_struct common;
+ struct chunk_struct data;
};
-static GstElementClass *parent_class = NULL;
+/* FIXME: mono doesn't produce correct files it seems, at least mplayer xruns */
+/* Max. of two channels, more channels need WAVFORMATEX with
+ * channel layout, which we do not support yet */
+#define SINK_CAPS \
+ "audio/x-raw-int, " \
+ "rate = (int) [ 1, MAX ], " \
+ "channels = (int) [ 1, 2 ], " \
+ "endianness = (int) LITTLE_ENDIAN, " \
+ "width = (int) 32, " \
+ "depth = (int) 32, " \
+ "signed = (boolean) true" \
+ "; " \
+ "audio/x-raw-int, " \
+ "rate = (int) [ 1, MAX ], " \
+ "channels = (int) [ 1, 2 ], " \
+ "endianness = (int) LITTLE_ENDIAN, " \
+ "width = (int) 24, " \
+ "depth = (int) 24, " \
+ "signed = (boolean) true" \
+ "; " \
+ "audio/x-raw-int, " \
+ "rate = (int) [ 1, MAX ], " \
+ "channels = (int) [ 1, 2 ], " \
+ "endianness = (int) LITTLE_ENDIAN, " \
+ "width = (int) 16, " \
+ "depth = (int) 16, " \
+ "signed = (boolean) true" \
+ "; " \
+ "audio/x-raw-int, " \
+ "rate = (int) [ 1, MAX ], " \
+ "channels = (int) [ 1, 2 ], " \
+ "width = (int) 8, " \
+ "depth = (int) 8, " \
+ "signed = (boolean) false" \
+ "; " \
+ "audio/x-raw-float, " \
+ "rate = (int) [ 1, MAX ], " \
+ "channels = (int) [ 1, 2 ], " \
+ "endianness = (int) LITTLE_ENDIAN, " \
+ "width = (int) { 32, 64 }; " \
+ "audio/x-alaw, " \
+ "rate = (int) [ 8000, 192000 ], " \
+ "channels = (int) [ 1, 2 ], " \
+ "width = (int) 8, " \
+ "depth = (int) 8, " \
+ "signed = (boolean) false; " \
+ "audio/x-mulaw, " \
+ "rate = (int) [ 8000, 192000 ], " \
+ "channels = (int) [ 1, 2 ], " \
+ "width = (int) 8, " \
+ "depth = (int) 8, " \
+ "signed = (boolean) false"
+
+
+static GstStaticPadTemplate sink_factory = GST_STATIC_PAD_TEMPLATE ("sink",
+ GST_PAD_SINK,
+ GST_PAD_ALWAYS,
+ GST_STATIC_CAPS (SINK_CAPS)
+ );
+
+static GstStaticPadTemplate src_factory = GST_STATIC_PAD_TEMPLATE ("src",
+ GST_PAD_SRC,
+ GST_PAD_ALWAYS,
+ GST_STATIC_CAPS ("audio/x-wav")
+ );
+
+#define gst_wavenc_parent_class parent_class
+G_DEFINE_TYPE (GstWavEnc, gst_wavenc, GST_TYPE_ELEMENT);
+
+static GstFlowReturn gst_wavenc_chain (GstPad * pad, GstBuffer * buf);
+static gboolean gst_wavenc_event (GstPad * pad, GstEvent * event);
+static GstStateChangeReturn gst_wavenc_change_state (GstElement * element,
+ GstStateChange transition);
+static gboolean gst_wavenc_sink_setcaps (GstPad * pad, GstCaps * caps);
-static GType
-gst_wavenc_get_type (void)
+static void
+gst_wavenc_class_init (GstWavEncClass * klass)
{
- static GType type = 0;
-
- if (type == 0) {
- static const GTypeInfo info = {
- sizeof (GstWavEncClass),
- gst_wavenc_base_init,
- NULL,
- (GClassInitFunc) gst_wavenc_class_init,
- NULL,
- NULL,
- sizeof (GstWavEnc),
- 0,
- (GInstanceInitFunc) gst_wavenc_init
- };
-
- type = g_type_register_static (GST_TYPE_ELEMENT, "GstWavEnc", &info, 0);
- }
+ GstElementClass *element_class;
- return type;
-}
+ element_class = (GstElementClass *) klass;
-static GstElementStateReturn
-gst_wavenc_change_state (GstElement *element)
-{
- GstWavEnc *wavenc = GST_WAVENC (element);
-
- switch (GST_STATE_TRANSITION (element)) {
- case GST_STATE_PAUSED_TO_READY:
- wavenc->setup = FALSE;
- wavenc->flush_header = TRUE;
- break;
- default:
- break;
- }
+ element_class->change_state = GST_DEBUG_FUNCPTR (gst_wavenc_change_state);
- if (parent_class->change_state) {
- return parent_class->change_state (element);
- }
+ gst_element_class_set_details_simple (element_class, "WAV audio muxer",
+ "Codec/Muxer/Audio",
+ "Encode raw audio into WAV", "Iain Holmes <iain@prettypeople.org>");
+
+ gst_element_class_add_pad_template (element_class,
+ gst_static_pad_template_get (&src_factory));
+ gst_element_class_add_pad_template (element_class,
+ gst_static_pad_template_get (&sink_factory));
- return GST_STATE_SUCCESS;
+ GST_DEBUG_CATEGORY_INIT (wavenc_debug, "wavenc", 0, "WAV encoder element");
}
static void
-set_property (GObject *object,
- guint prop_id,
- const GValue *value,
- GParamSpec *pspec)
+gst_wavenc_init (GstWavEnc * wavenc)
{
- GstWavEnc *enc;
-
- enc = GST_WAVENC (object);
-
- switch (prop_id) {
- case PROP_METADATA:
- enc->metadata = g_value_get_boxed (value);
- break;
-
- default:
- break;
- }
+ wavenc->sinkpad = gst_pad_new_from_static_template (&sink_factory, "sink");
+ gst_pad_set_chain_function (wavenc->sinkpad,
+ GST_DEBUG_FUNCPTR (gst_wavenc_chain));
+ gst_pad_set_event_function (wavenc->sinkpad,
+ GST_DEBUG_FUNCPTR (gst_wavenc_event));
+ gst_pad_use_fixed_caps (wavenc->sinkpad);
+ gst_element_add_pad (GST_ELEMENT (wavenc), wavenc->sinkpad);
+
+ wavenc->srcpad = gst_pad_new_from_static_template (&src_factory, "src");
+ gst_pad_use_fixed_caps (wavenc->srcpad);
+ gst_pad_set_caps (wavenc->srcpad,
+ gst_static_pad_template_get_caps (&src_factory));
+ gst_element_add_pad (GST_ELEMENT (wavenc), wavenc->srcpad);
}
-static void
-gst_wavenc_base_init (gpointer g_class)
+#define WAV_HEADER_LEN 44
+
+static GstBuffer *
+gst_wavenc_create_header_buf (GstWavEnc * wavenc, guint audio_data_size)
{
- GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
+ struct wave_header wave;
+ GstBuffer *buf;
+ guint8 *header;
- gst_element_class_set_details (element_class, &gst_wavenc_details);
-
- srctemplate = src_factory ();
- gst_element_class_add_pad_template (element_class, srctemplate);
+ buf = gst_buffer_new_and_alloc (WAV_HEADER_LEN);
+ header = gst_buffer_map (buf, NULL, NULL, GST_MAP_WRITE);
+ memset (header, 0, WAV_HEADER_LEN);
- sinktemplate = sink_factory ();
- gst_element_class_add_pad_template (element_class, sinktemplate);
-}
-static void
-gst_wavenc_class_init (GstWavEncClass *klass)
-{
- GstElementClass *element_class;
- GObjectClass *object_class;
-
- element_class = (GstElementClass *) klass;
- object_class = (GObjectClass *) klass;
+ wave.common.wChannels = wavenc->channels;
+ wave.common.wBitsPerSample = wavenc->width;
+ wave.common.dwSamplesPerSec = wavenc->rate;
- object_class->set_property = set_property;
-
- element_class->change_state = gst_wavenc_change_state;
+ /* Fill out our wav-header with some information */
+ memcpy (wave.riff.id, "RIFF", 4);
+ wave.riff.len = audio_data_size + WAV_HEADER_LEN - 8;
+ memcpy (wave.riff.wav_id, "WAVE", 4);
- parent_class = g_type_class_ref (GST_TYPE_ELEMENT);
+ memcpy (wave.format.id, "fmt ", 4);
+ wave.format.len = 16;
- g_object_class_install_property (object_class,
- PROP_METADATA,
- g_param_spec_boxed ("metadata", "", "",
- GST_TYPE_CAPS,
- G_PARAM_WRITABLE));
+ wave.common.wFormatTag = wavenc->format;
+ wave.common.wBlockAlign = (wavenc->width / 8) * wave.common.wChannels;
+ wave.common.dwAvgBytesPerSec =
+ wave.common.wBlockAlign * wave.common.dwSamplesPerSec;
+
+ memcpy (wave.data.id, "data", 4);
+ wave.data.len = audio_data_size;
+
+ memcpy (header, (char *) wave.riff.id, 4);
+ GST_WRITE_UINT32_LE (header + 4, wave.riff.len);
+ memcpy (header + 8, (char *) wave.riff.wav_id, 4);
+ memcpy (header + 12, (char *) wave.format.id, 4);
+ GST_WRITE_UINT32_LE (header + 16, wave.format.len);
+ GST_WRITE_UINT16_LE (header + 20, wave.common.wFormatTag);
+ GST_WRITE_UINT16_LE (header + 22, wave.common.wChannels);
+ GST_WRITE_UINT32_LE (header + 24, wave.common.dwSamplesPerSec);
+ GST_WRITE_UINT32_LE (header + 28, wave.common.dwAvgBytesPerSec);
+ GST_WRITE_UINT16_LE (header + 32, wave.common.wBlockAlign);
+ GST_WRITE_UINT16_LE (header + 34, wave.common.wBitsPerSample);
+ memcpy (header + 36, (char *) wave.data.id, 4);
+ GST_WRITE_UINT32_LE (header + 40, wave.data.len);
+
+ gst_buffer_unmap (buf, header, -1);
+
+ return buf;
}
-static gboolean
-gst_wavenc_setup (GstWavEnc *wavenc)
+static GstFlowReturn
+gst_wavenc_push_header (GstWavEnc * wavenc, guint audio_data_size)
{
- struct wave_header wave;
- gint size = 0x7fffffff; /* Use a bogus size initially */
+ GstFlowReturn ret;
+ GstBuffer *outbuf;
+ GstSegment segment;
- wave.common.wChannels = wavenc->channels;
- wave.common.wBitsPerSample = wavenc->bits;
- wave.common.dwSamplesPerSec = wavenc->rate;
+ /* seek to beginning of file */
+ gst_segment_init (&segment, GST_FORMAT_BYTES);
+ gst_pad_push_event (wavenc->srcpad, gst_event_new_segment (&segment));
- memset (wavenc->header, 0, WAV_HEADER_LEN);
+ GST_DEBUG_OBJECT (wavenc, "writing header with datasize=%u", audio_data_size);
- /* Fill out our wav-header with some information */
- strncpy (wave.riff.id, "RIFF", 4);
- wave.riff.len = size - 8;
- strncpy (wave.riff.wav_id, "WAVE", 4);
+ outbuf = gst_wavenc_create_header_buf (wavenc, audio_data_size);
+ GST_BUFFER_OFFSET (outbuf) = 0;
- strncpy (wave.format.id, "fmt ", 4);
- wave.format.len = 16;
+ ret = gst_pad_push (wavenc->srcpad, outbuf);
- wave.common.wFormatTag = WAVE_FORMAT_PCM;
- wave.common.dwAvgBytesPerSec = wave.common.wChannels * wave.common.dwSamplesPerSec * (wave.common.wBitsPerSample >> 3);
- wave.common.wBlockAlign = wave.common.wChannels * (wave.common.wBitsPerSample >> 3);
-
- strncpy (wave.data.id, "data", 4);
- wave.data.len = size - 44;
-
- strncpy (wavenc->header, wave.riff.id, 4);
- WRITE_U32 (wavenc->header + 4, wave.riff.len);
- strncpy (wavenc->header + 8, wave.riff.wav_id, 4);
- strncpy (wavenc->header + 12, wave.format.id, 4);
- WRITE_U32 (wavenc->header + 16, wave.format.len);
- WRITE_U16 (wavenc->header + 20, wave.common.wFormatTag);
- WRITE_U16 (wavenc->header + 22, wave.common.wChannels);
- WRITE_U32 (wavenc->header + 24, wave.common.dwSamplesPerSec);
- WRITE_U32 (wavenc->header + 28, wave.common.dwAvgBytesPerSec);
- WRITE_U16 (wavenc->header + 32, wave.common.wBlockAlign);
- WRITE_U16 (wavenc->header + 34, wave.common.wBitsPerSample);
- strncpy (wavenc->header + 36, wave.data.id, 4);
- WRITE_U32 (wavenc->header + 40, wave.data.len);
-
- wavenc->setup = TRUE;
- return TRUE;
+ if (ret != GST_FLOW_OK) {
+ GST_WARNING_OBJECT (wavenc, "push header failed: flow = %s",
+ gst_flow_get_name (ret));
+ }
+
+ return ret;
}
-static GstPadLinkReturn
-gst_wavenc_sinkconnect (GstPad *pad,
- GstCaps *caps)
+static gboolean
+gst_wavenc_sink_setcaps (GstPad * pad, GstCaps * caps)
{
GstWavEnc *wavenc;
+ GstStructure *structure;
+ const gchar *name;
+ gint chans, rate, width;
+ GstCaps *ccaps;
wavenc = GST_WAVENC (gst_pad_get_parent (pad));
- if (!GST_CAPS_IS_FIXED (caps)) {
- return GST_PAD_LINK_DELAYED;
+ ccaps = gst_pad_get_current_caps (pad);
+ if (wavenc->sent_header && ccaps && !gst_caps_can_intersect (caps, ccaps)) {
+ gst_caps_unref (ccaps);
+ GST_WARNING_OBJECT (wavenc, "cannot change format in middle of stream");
+ goto fail;
}
+ if (ccaps)
+ gst_caps_unref (ccaps);
- gst_caps_get_int (caps, "channels", &wavenc->channels);
- gst_caps_get_int (caps, "rate", &wavenc->rate);
- gst_caps_get_int (caps, "depth", &wavenc->bits);
+ GST_DEBUG_OBJECT (wavenc, "got caps: %" GST_PTR_FORMAT, caps);
- gst_wavenc_setup (wavenc);
+ structure = gst_caps_get_structure (caps, 0);
+ name = gst_structure_get_name (structure);
- if (wavenc->setup) {
- return GST_PAD_LINK_OK;
+ if (!gst_structure_get_int (structure, "channels", &chans) ||
+ !gst_structure_get_int (structure, "rate", &rate)) {
+ GST_WARNING_OBJECT (wavenc, "caps incomplete");
+ goto fail;
}
- return GST_PAD_LINK_REFUSED;
-}
+ if (strcmp (name, "audio/x-raw-int") == 0) {
+ if (!gst_structure_get_int (structure, "width", &width)) {
+ GST_WARNING_OBJECT (wavenc, "caps incomplete");
+ goto fail;
+ }
+ wavenc->format = GST_RIFF_WAVE_FORMAT_PCM;
+ wavenc->width = width;
+ } else if (strcmp (name, "audio/x-raw-float") == 0) {
+ if (!gst_structure_get_int (structure, "width", &width)) {
+ GST_WARNING_OBJECT (wavenc, "caps incomplete");
+ goto fail;
+ }
+ wavenc->format = GST_RIFF_WAVE_FORMAT_IEEE_FLOAT;
+ wavenc->width = width;
+ } else if (strcmp (name, "audio/x-alaw") == 0) {
+ wavenc->format = GST_RIFF_WAVE_FORMAT_ALAW;
+ wavenc->width = 8;
+ } else if (strcmp (name, "audio/x-mulaw") == 0) {
+ wavenc->format = GST_RIFF_WAVE_FORMAT_MULAW;
+ wavenc->width = 8;
+ } else {
+ GST_WARNING_OBJECT (wavenc, "Unsupported format %s", name);
+ goto fail;
+ }
-static void
-gst_wavenc_stop_file (GstWavEnc *wavenc)
-{
- GstEvent *event;
- GstBuffer *outbuf;
-
- event = gst_event_new_seek (GST_FORMAT_BYTES |
- GST_SEEK_METHOD_SET, 0);
- gst_pad_send_event (GST_PAD_PEER (wavenc->srcpad), event);
-
- outbuf = gst_buffer_new_and_alloc (WAV_HEADER_LEN);
- WRITE_U32 (wavenc->header + 4, wavenc->length);
- memcpy (GST_BUFFER_DATA (outbuf), wavenc->header, WAV_HEADER_LEN);
-
- gst_pad_push (wavenc->srcpad, GST_DATA (outbuf));
-}
+ wavenc->channels = chans;
+ wavenc->rate = rate;
-static void
-gst_wavenc_init (GstWavEnc *wavenc)
-{
- wavenc->sinkpad = gst_pad_new_from_template (sinktemplate, "sink");
- gst_element_add_pad (GST_ELEMENT (wavenc), wavenc->sinkpad);
- gst_pad_set_chain_function (wavenc->sinkpad, gst_wavenc_chain);
- gst_pad_set_link_function (wavenc->sinkpad, gst_wavenc_sinkconnect);
-
- wavenc->srcpad = gst_pad_new_from_template (srctemplate, "src");
- gst_element_add_pad (GST_ELEMENT (wavenc), wavenc->srcpad);
+ GST_LOG_OBJECT (wavenc,
+ "accepted caps: format=0x%04x chans=%u width=%u rate=%u",
+ wavenc->format, wavenc->channels, wavenc->width, wavenc->rate);
- wavenc->setup = FALSE;
- wavenc->flush_header = TRUE;
- wavenc->metadata = NULL;
-
- GST_FLAG_SET (wavenc, GST_ELEMENT_EVENT_AWARE);
+ gst_object_unref (wavenc);
+ return TRUE;
+
+fail:
+ gst_object_unref (wavenc);
+ return FALSE;
}
-struct _maps {
- guint32 id;
- char *name;
+#if 0
+static struct _maps
+{
+ const guint32 id;
+ const gchar *name;
} maps[] = {
- { GST_RIFF_INFO_IARL, "Location" },
- { GST_RIFF_INFO_IART, "Artist" },
- { GST_RIFF_INFO_ICMS, "Commissioner" },
- { GST_RIFF_INFO_ICMT, "Comment" },
- { GST_RIFF_INFO_ICOP, "Copyright" },
- { GST_RIFF_INFO_ICRD, "Creation Date" },
- { GST_RIFF_INFO_IENG, "Engineer" },
- { GST_RIFF_INFO_IGNR, "Genre" },
- { GST_RIFF_INFO_IKEY, "Keywords" },
- { GST_RIFF_INFO_INAM, "Title" }, /* Name */
- { GST_RIFF_INFO_IPRD, "Product" },
- { GST_RIFF_INFO_ISBJ, "Subject" },
- { GST_RIFF_INFO_ISFT, "Software" },
- { GST_RIFF_INFO_ITCH, "Technician" },
- { 0, NULL }
+ {
+ GST_RIFF_INFO_IARL, "Location"}, {
+ GST_RIFF_INFO_IART, "Artist"}, {
+ GST_RIFF_INFO_ICMS, "Commissioner"}, {
+ GST_RIFF_INFO_ICMT, "Comment"}, {
+ GST_RIFF_INFO_ICOP, "Copyright"}, {
+ GST_RIFF_INFO_ICRD, "Creation Date"}, {
+ GST_RIFF_INFO_IENG, "Engineer"}, {
+ GST_RIFF_INFO_IGNR, "Genre"}, {
+ GST_RIFF_INFO_IKEY, "Keywords"}, {
+ GST_RIFF_INFO_INAM, "Title"}, {
+ GST_RIFF_INFO_IPRD, "Product"}, {
+ GST_RIFF_INFO_ISBJ, "Subject"}, {
+ GST_RIFF_INFO_ISFT, "Software"}, {
+ GST_RIFF_INFO_ITCH, "Technician"}
};
static guint32
get_id_from_name (const char *name)
{
- int i;
+ int i;
- for (i = 0; maps[i].name; i++) {
- if (strcasecmp (maps[i].name, name) == 0) {
- return maps[i].id;
- }
- }
+ for (i = 0; i < G_N_ELEMENTS (maps); i++) {
+ if (strcasecmp (maps[i].name, name) == 0) {
+ return maps[i].id;
+ }
+ }
- return 0;
+ return 0;
}
static void
-write_metadata (GstWavEnc *wavenc)
+write_metadata (GstWavEnc * wavenc)
{
- GString *info_str;
- GList *props;
- int total = 4;
- gboolean need_to_write = FALSE;
-
- info_str = g_string_new ("LIST INFO");
-
- for (props = wavenc->metadata->properties->properties; props; props = props->next) {
- GstPropsEntry *entry = props->data;
- const char *name;
- guint32 id;
-
- name = gst_props_entry_get_name (entry);
- id = get_id_from_name (name);
- if (id != 0) {
- const char *text;
- char *tmp;
- int len, req, i;
-
- need_to_write = TRUE; /* We've got at least one entry */
-
- gst_props_entry_get_string (entry, &text);
- len = strlen (text) + 1; /* The length in the file includes the \0 */
-
- tmp = g_strdup_printf (GST_FOURCC_FORMAT "%d%s", GST_FOURCC_ARGS (id),
- GUINT32_TO_LE (len), text);
- g_string_append (info_str, tmp);
- g_free (tmp);
-
- /* Check that we end on an even boundary */
- req = ((len + 8) + 1) & ~1;
- for (i = 0; i < req - len; i++) {
- g_string_append_printf (info_str, "%c", 0);
- }
-
- total += req;
- }
- }
-
- if (need_to_write) {
- GstBuffer *buf;
- /* Now we've got all the strings together, we can write our length in */
- info_str->str[4] = GUINT32_TO_LE (total);
-
- buf = gst_buffer_new ();
- gst_buffer_set_data (buf, info_str->str, info_str->len);
-
- gst_pad_push (wavenc->srcpad, GST_DATA (buf));
- g_string_free (info_str, FALSE);
- }
+ GString *info_str;
+ GList *props;
+ int total = 4;
+ gboolean need_to_write = FALSE;
+
+ info_str = g_string_new ("LIST INFO");
+
+ for (props = wavenc->metadata->properties->properties; props;
+ props = props->next) {
+ GstPropsEntry *entry = props->data;
+ const char *name;
+ guint32 id;
+
+ name = gst_props_entry_get_name (entry);
+ id = get_id_from_name (name);
+ if (id != 0) {
+ const char *text;
+ char *tmp;
+ int len, req, i;
+
+ need_to_write = TRUE; /* We've got at least one entry */
+
+ gst_props_entry_get_string (entry, &text);
+ len = strlen (text) + 1; /* The length in the file includes the \0 */
+
+ tmp = g_strdup_printf ("%" GST_FOURCC_FORMAT "%d%s", GST_FOURCC_ARGS (id),
+ GUINT32_TO_LE (len), text);
+ g_string_append (info_str, tmp);
+ g_free (tmp);
+
+ /* Check that we end on an even boundary */
+ req = ((len + 8) + 1) & ~1;
+ for (i = 0; i < req - len; i++) {
+ g_string_append_printf (info_str, "%c", 0);
+ }
+
+ total += req;
+ }
+ }
+
+ if (need_to_write) {
+ GstBuffer *buf;
+
+ /* Now we've got all the strings together, we can write our length in */
+ info_str->str[4] = GUINT32_TO_LE (total);
+
+ buf = gst_buffer_new ();
+ gst_buffer_set_data (buf, info_str->str, info_str->len);
+
+ gst_pad_push (wavenc->srcpad, GST_DATA (buf));
+ g_string_free (info_str, FALSE);
+ }
}
static void
-write_cues (GstWavEnc *wavenc)
+write_cues (GstWavEnc * wavenc)
{
- GString *cue_string, *point_string;
- GstBuffer *buf;
- GList *cue_list, *c;
- int num_cues, total = 4;
-
- if (gst_props_get (wavenc->metadata->properties,
- "cues", &cue_list,
- NULL) == FALSE) {
- /* No cues, move along please, nothing to see here */
- return;
- }
-
- /* Space for 'cue ', chunk size and number of cuepoints */
- cue_string = g_string_new ("cue ");
+ GString *cue_string, *point_string;
+ GstBuffer *buf;
+ GList *cue_list, *c;
+ int num_cues, total = 4;
+
+ if (gst_props_get (wavenc->metadata->properties,
+ "cues", &cue_list, NULL) == FALSE) {
+ /* No cues, move along please, nothing to see here */
+ return;
+ }
+
+ /* Space for 'cue ', chunk size and number of cuepoints */
+ cue_string = g_string_new ("cue ");
#define CUEPOINT_SIZE 24
- point_string = g_string_sized_new (CUEPOINT_SIZE);
-
- for (c = cue_list, num_cues = 0; c; c = c->next, num_cues++) {
- GstCaps *cue_caps = c->data;
- guint32 pos;
-
- gst_props_get (cue_caps->properties, "position", &pos, NULL);
-
- point_string->str[0] = GUINT32_TO_LE (num_cues + 1);
- point_string->str[4] = GUINT32_TO_LE (0);
- /* Fixme: There is probably a macro for this */
- point_string->str[8] = 'd';
- point_string->str[9] = 'a';
- point_string->str[10] = 't';
- point_string->str[11] = 'a';
- point_string->str[12] = GUINT32_TO_LE (0);
- point_string->str[16] = GUINT32_TO_LE (0);
- point_string->str[20] = GUINT32_TO_LE (pos);
-
- total += CUEPOINT_SIZE;
- }
-
- /* Set the length and chunk size */
- cue_string->str[4] = GUINT32_TO_LE (total);
- cue_string->str[8] = GUINT32_TO_LE (num_cues);
- /* Stick the cue points on the end */
- g_string_append (cue_string, point_string->str);
- g_string_free (point_string, TRUE);
-
- buf = gst_buffer_new ();
- gst_buffer_set_data (buf, cue_string->str, cue_string->len);
-
- gst_pad_push (wavenc->srcpad, GST_DATA (buf));
- g_string_free (cue_string, FALSE);
+ point_string = g_string_sized_new (CUEPOINT_SIZE);
+
+ for (c = cue_list, num_cues = 0; c; c = c->next, num_cues++) {
+ GstCaps *cue_caps = c->data;
+ guint32 pos;
+
+ gst_props_get (cue_caps->properties, "position", &pos, NULL);
+
+ point_string->str[0] = GUINT32_TO_LE (num_cues + 1);
+ point_string->str[4] = GUINT32_TO_LE (0);
+ /* Fixme: There is probably a macro for this */
+ point_string->str[8] = 'd';
+ point_string->str[9] = 'a';
+ point_string->str[10] = 't';
+ point_string->str[11] = 'a';
+ point_string->str[12] = GUINT32_TO_LE (0);
+ point_string->str[16] = GUINT32_TO_LE (0);
+ point_string->str[20] = GUINT32_TO_LE (pos);
+
+ total += CUEPOINT_SIZE;
+ }
+
+ /* Set the length and chunk size */
+ cue_string->str[4] = GUINT32_TO_LE (total);
+ cue_string->str[8] = GUINT32_TO_LE (num_cues);
+ /* Stick the cue points on the end */
+ g_string_append (cue_string, point_string->str);
+ g_string_free (point_string, TRUE);
+
+ buf = gst_buffer_new ();
+ gst_buffer_set_data (buf, cue_string->str, cue_string->len);
+
+ gst_pad_push (wavenc->srcpad, GST_DATA (buf));
+ g_string_free (cue_string, FALSE);
}
static void
-write_labels (GstWavEnc *wavenc)
+write_labels (GstWavEnc * wavenc)
{
- GstBuffer *buf;
- GString *info_str;
- int total = 4;
- GList *caps;
-
- info_str = g_string_new ("LIST adtl");
- if (gst_props_get (wavenc->metadata->properties, "ltxts", &caps, NULL)) {
- GList *p;
- int i;
-
- for (p = caps, i = 1; p; p = p->next, i++) {
- GstCaps *ltxt_caps = p->data;
- GString *ltxt;
- char *label = NULL;
- int len, req, j;
-
- gst_props_get (ltxt_caps->properties, "name", &label, NULL);
- len = strlen (label);
+ GstBuffer *buf;
+ GString *info_str;
+ int total = 4;
+ GList *caps;
+
+ info_str = g_string_new ("LIST adtl");
+ if (gst_props_get (wavenc->metadata->properties, "ltxts", &caps, NULL)) {
+ GList *p;
+ int i;
+
+ for (p = caps, i = 1; p; p = p->next, i++) {
+ GstCaps *ltxt_caps = p->data;
+ GString *ltxt;
+ char *label = NULL;
+ int len, req, j;
+
+ gst_props_get (ltxt_caps->properties, "name", &label, NULL);
+ len = strlen (label);
#define LTXT_SIZE 28
- ltxt = g_string_new ("ltxt ");
- ltxt->str[8] = GUINT32_TO_LE (i); /* Identifier */
- ltxt->str[12] = GUINT32_TO_LE (0); /* Sample Length */
- ltxt->str[16] = GUINT32_TO_LE (0); /* FIXME: Don't save the purpose yet */
- ltxt->str[20] = GUINT16_TO_LE (0); /* Country */
- ltxt->str[22] = GUINT16_TO_LE (0); /* Language */
- ltxt->str[24] = GUINT16_TO_LE (0); /* Dialect */
- ltxt->str[26] = GUINT16_TO_LE (0); /* Code Page */
- g_string_append (ltxt, label);
- g_free (label);
-
- len += LTXT_SIZE;
-
- ltxt->str[4] = GUINT32_TO_LE (len);
-
- /* Check that we end on an even boundary */
- req = ((len + 8) + 1) & ~1;
- for (j = 0; j < req - len; j++) {
- g_string_append_printf (ltxt, "%c", 0);
- }
-
- total += req;
-
- g_string_append (info_str, ltxt->str);
- g_string_free (ltxt, TRUE);
- }
- }
-
- if (gst_props_get (wavenc->metadata->properties, "labels", &caps, NULL)) {
- GList *p;
- int i;
-
- for (p = caps, i = 1; p; p = p->next, i++) {
- GstCaps *labl_caps = p->data;
- GString *labl;
- char *label = NULL;
- int len, req, j;
-
- gst_props_get (labl_caps->properties, "name", &label, NULL);
- len = strlen (label);
+ ltxt = g_string_new ("ltxt ");
+ ltxt->str[8] = GUINT32_TO_LE (i); /* Identifier */
+ ltxt->str[12] = GUINT32_TO_LE (0); /* Sample Length */
+ ltxt->str[16] = GUINT32_TO_LE (0); /* FIXME: Don't save the purpose yet */
+ ltxt->str[20] = GUINT16_TO_LE (0); /* Country */
+ ltxt->str[22] = GUINT16_TO_LE (0); /* Language */
+ ltxt->str[24] = GUINT16_TO_LE (0); /* Dialect */
+ ltxt->str[26] = GUINT16_TO_LE (0); /* Code Page */
+ g_string_append (ltxt, label);
+ g_free (label);
+
+ len += LTXT_SIZE;
+
+ ltxt->str[4] = GUINT32_TO_LE (len);
+
+ /* Check that we end on an even boundary */
+ req = ((len + 8) + 1) & ~1;
+ for (j = 0; j < req - len; j++) {
+ g_string_append_printf (ltxt, "%c", 0);
+ }
+
+ total += req;
+
+ g_string_append (info_str, ltxt->str);
+ g_string_free (ltxt, TRUE);
+ }
+ }
+
+ if (gst_props_get (wavenc->metadata->properties, "labels", &caps, NULL)) {
+ GList *p;
+ int i;
+
+ for (p = caps, i = 1; p; p = p->next, i++) {
+ GstCaps *labl_caps = p->data;
+ GString *labl;
+ char *label = NULL;
+ int len, req, j;
+
+ gst_props_get (labl_caps->properties, "name", &label, NULL);
+ len = strlen (label);
#define LABL_SIZE 4
- labl = g_string_new ("labl ");
- labl->str[8] = GUINT32_TO_LE (i);
- g_string_append (labl, label);
- g_free (label);
-
- len += LABL_SIZE;
+ labl = g_string_new ("labl ");
+ labl->str[8] = GUINT32_TO_LE (i);
+ g_string_append (labl, label);
+ g_free (label);
+
+ len += LABL_SIZE;
- labl->str[4] = GUINT32_TO_LE (len);
+ labl->str[4] = GUINT32_TO_LE (len);
- /* Check our size */
- req = ((len + 8) + 1) & ~1;
- for (j = 0; j < req - len; j++) {
- g_string_append_printf (labl, "%c", 0);
- }
+ /* Check our size */
+ req = ((len + 8) + 1) & ~1;
+ for (j = 0; j < req - len; j++) {
+ g_string_append_printf (labl, "%c", 0);
+ }
- total += req;
+ total += req;
- g_string_append (info_str, labl->str);
- g_string_free (labl, TRUE);
- }
- }
+ g_string_append (info_str, labl->str);
+ g_string_free (labl, TRUE);
+ }
+ }
- if (gst_props_get (wavenc->metadata->properties, "notes", &caps, NULL)) {
- GList *p;
- int i;
+ if (gst_props_get (wavenc->metadata->properties, "notes", &caps, NULL)) {
+ GList *p;
+ int i;
- for (p = caps, i = 1; p; p = p->next, i++) {
- GstCaps *note_caps = p->data;
- GString *note;
- char *label = NULL;
- int len, req, j;
+ for (p = caps, i = 1; p; p = p->next, i++) {
+ GstCaps *note_caps = p->data;
+ GString *note;
+ char *label = NULL;
+ int len, req, j;
- gst_props_get (note_caps->properties, "name", &label, NULL);
- len = strlen (label);
+ gst_props_get (note_caps->properties, "name", &label, NULL);
+ len = strlen (label);
#define NOTE_SIZE 4
- note = g_string_new ("note ");
- note->str[8] = GUINT32_TO_LE (i);
- g_string_append (note, label);
- g_free (label);
+ note = g_string_new ("note ");
+ note->str[8] = GUINT32_TO_LE (i);
+ g_string_append (note, label);
+ g_free (label);
- len += NOTE_SIZE;
+ len += NOTE_SIZE;
- note->str[4] = GUINT32_TO_LE (len);
+ note->str[4] = GUINT32_TO_LE (len);
- /* Size check */
- req = ((len + 8) + 1) & ~1;
- for (j = 0; j < req - len; j++) {
- g_string_append_printf (note, "%c", 0);
- }
+ /* Size check */
+ req = ((len + 8) + 1) & ~1;
+ for (j = 0; j < req - len; j++) {
+ g_string_append_printf (note, "%c", 0);
+ }
- total += req;
+ total += req;
- g_string_append (info_str, note->str);
- g_string_free (note, TRUE);
- }
- }
+ g_string_append (info_str, note->str);
+ g_string_free (note, TRUE);
+ }
+ }
- info_str->str[4] = GUINT32_TO_LE (total);
+ info_str->str[4] = GUINT32_TO_LE (total);
- buf = gst_buffer_new ();
- gst_buffer_set_data (buf, info_str->str, info_str->len);
+ buf = gst_buffer_new ();
+ gst_buffer_set_data (buf, info_str->str, info_str->len);
- gst_pad_push (wavenc->srcpad, GST_DATA (buf));
- g_string_free (info_str, FALSE);
+ gst_pad_push (wavenc->srcpad, GST_DATA (buf));
+ g_string_free (info_str, FALSE);
}
+#endif
-static void
-gst_wavenc_chain (GstPad *pad,
- GstData *_data)
+static gboolean
+gst_wavenc_event (GstPad * pad, GstEvent * event)
{
- GstBuffer *buf = GST_BUFFER (_data);
+ gboolean res = TRUE;
GstWavEnc *wavenc;
wavenc = GST_WAVENC (gst_pad_get_parent (pad));
- if (!wavenc->setup) {
- gst_buffer_unref (buf);
- gst_element_error (GST_ELEMENT (wavenc), "encoder not initialised (input is not audio?)");
- return;
- }
+ switch (GST_EVENT_TYPE (event)) {
+ case GST_EVENT_CAPS:
+ {
+ GstCaps *caps;
- if (GST_IS_EVENT (buf)) {
- if (GST_EVENT_TYPE (buf) == GST_EVENT_EOS) {
- wavenc->pad_eos = TRUE;
-
- /* Write our metadata if we have any */
- if (wavenc->metadata) {
- write_metadata (wavenc);
- write_cues (wavenc);
- write_labels (wavenc);
- }
-
- gst_wavenc_stop_file (wavenc);
- gst_pad_push (wavenc->srcpad,
- GST_DATA (gst_event_new (GST_EVENT_EOS)));
- gst_element_set_eos (GST_ELEMENT (wavenc));
- } else {
- gst_pad_event_default (wavenc->srcpad, GST_EVENT (buf));
- }
- return;
- }
-
- if (GST_PAD_IS_USABLE (wavenc->srcpad)) {
- if (wavenc->flush_header) {
- GstBuffer *outbuf;
-
- outbuf = gst_buffer_new_and_alloc (WAV_HEADER_LEN);
- memcpy (GST_BUFFER_DATA (outbuf), wavenc->header, WAV_HEADER_LEN);
- GST_BUFFER_TIMESTAMP (outbuf) = GST_BUFFER_TIMESTAMP (buf);
-
- gst_pad_push (wavenc->srcpad, GST_DATA (outbuf));
- wavenc->flush_header = FALSE;
+ gst_event_parse_caps (event, &caps);
+ gst_wavenc_sink_setcaps (pad, caps);
+
+ /* have our own src caps */
+ gst_event_unref (event);
+ break;
}
+ case GST_EVENT_EOS:{
+ GST_DEBUG_OBJECT (wavenc, "got EOS");
+#if 0
+ /* Write our metadata if we have any */
+ if (wavenc->metadata) {
+ write_metadata (wavenc);
+ write_cues (wavenc);
+ write_labels (wavenc);
+ }
+#endif
+ /* write header with correct length values */
+ gst_wavenc_push_header (wavenc, wavenc->length);
- wavenc->length += GST_BUFFER_SIZE (buf);
- gst_pad_push (wavenc->srcpad, GST_DATA (buf));
+ /* we're done with this file */
+ wavenc->finished_properly = TRUE;
+
+ /* and forward the EOS event */
+ res = gst_pad_event_default (pad, event);
+ break;
+ }
+ case GST_EVENT_SEGMENT:
+ /* Just drop it, it's probably in TIME format
+ * anyway. We'll send our own newsegment event */
+ gst_event_unref (event);
+ break;
+ default:
+ res = gst_pad_event_default (pad, event);
+ break;
+ }
+
+ gst_object_unref (wavenc);
+ return res;
+}
+
+static GstFlowReturn
+gst_wavenc_chain (GstPad * pad, GstBuffer * buf)
+{
+ GstWavEnc *wavenc = GST_WAVENC (GST_PAD_PARENT (pad));
+ GstFlowReturn flow = GST_FLOW_OK;
+
+ g_return_val_if_fail (wavenc->channels > 0, GST_FLOW_WRONG_STATE);
+
+ if (!wavenc->sent_header) {
+ /* use bogus size initially, we'll write the real
+ * header when we get EOS and know the exact length */
+ flow = gst_wavenc_push_header (wavenc, 0x7FFF0000);
+
+ /* starting a file, means we have to finish it properly */
+ wavenc->finished_properly = FALSE;
+
+ if (flow != GST_FLOW_OK)
+ return flow;
+
+ GST_DEBUG_OBJECT (wavenc, "wrote dummy header");
+ wavenc->sent_header = TRUE;
}
+
+ GST_LOG_OBJECT (wavenc, "pushing %u bytes raw audio, ts=%" GST_TIME_FORMAT,
+ gst_buffer_get_size (buf), GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buf)));
+
+ buf = gst_buffer_make_writable (buf);
+
+ GST_BUFFER_OFFSET (buf) = WAV_HEADER_LEN + wavenc->length;
+ GST_BUFFER_OFFSET_END (buf) = GST_BUFFER_OFFSET_NONE;
+
+ wavenc->length += gst_buffer_get_size (buf);
+
+ flow = gst_pad_push (wavenc->srcpad, buf);
+
+ return flow;
+}
+
+static GstStateChangeReturn
+gst_wavenc_change_state (GstElement * element, GstStateChange transition)
+{
+ GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
+ GstWavEnc *wavenc = GST_WAVENC (element);
+
+ switch (transition) {
+ case GST_STATE_CHANGE_NULL_TO_READY:
+ wavenc->format = 0;
+ wavenc->channels = 0;
+ wavenc->width = 0;
+ wavenc->rate = 0;
+ wavenc->length = 0;
+ wavenc->sent_header = FALSE;
+ /* its true because we haven't writen anything */
+ wavenc->finished_properly = TRUE;
+ break;
+ default:
+ break;
+ }
+
+ ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
+ if (ret != GST_STATE_CHANGE_SUCCESS)
+ return ret;
+
+ switch (transition) {
+ case GST_STATE_CHANGE_PAUSED_TO_READY:
+ if (!wavenc->finished_properly) {
+ GST_ELEMENT_WARNING (wavenc, STREAM, MUX,
+ ("Wav stream not finished properly"),
+ ("Wav stream not finished properly, no EOS received "
+ "before shutdown"));
+ }
+ break;
+ default:
+ break;
+ }
+
+ return ret;
}
static gboolean
-plugin_init (GstPlugin *plugin)
+plugin_init (GstPlugin * plugin)
{
- return gst_element_register (plugin, "wavenc", GST_RANK_NONE, GST_TYPE_WAVENC);
+ return gst_element_register (plugin, "wavenc", GST_RANK_PRIMARY,
+ GST_TYPE_WAVENC);
}
-GST_PLUGIN_DEFINE (
- GST_VERSION_MAJOR,
- GST_VERSION_MINOR,
- "wavenc",
- "Encode raw audio into WAV",
- plugin_init,
- VERSION,
- GST_LICENSE,
- GST_COPYRIGHT,
- GST_PACKAGE,
- GST_ORIGIN
-)
-
+GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
+ GST_VERSION_MINOR,
+ "wavenc",
+ "Encode raw audio into WAV",
+ plugin_init, VERSION, GST_LICENSE, GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN)
projects / platform / upstream / gst-plugins-good.git / blobdiff