mirrors/gstreamer
mirrors/gstreamer
1
1
Fork 0
mirror of https://gitlab.freedesktop.org/gstreamer/gstreamer.git synced 2024-12-23 16:50:47 +00:00
Code Issues 1 Projects Releases Wiki Activity

wavenc: port to 0.11

Browse source
This commit is contained in:
Mark Nauwelaerts 2011-07-06 16:10:23 +02:00
parent 88f107b30b
commit 9cf287ebcc
1 changed files with 36 additions and 27 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

63
gst/wavenc/gstwavenc.c
View file

@ -134,7 +134,8 @@ static GstStaticPadTemplate src_factory = GST_STATIC_PAD_TEMPLATE ("src",
GST_STATIC_CAPS ("audio/x-wav")
);
GST_BOILERPLATE (GstWavEnc, gst_wavenc, GstElement, GST_TYPE_ELEMENT);
#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);
@ -143,9 +144,13 @@ static GstStateChangeReturn gst_wavenc_change_state (GstElement * element,
static gboolean gst_wavenc_sink_setcaps (GstPad * pad, GstCaps * caps);
static void
gst_wavenc_base_init (gpointer g_class)
gst_wavenc_class_init (GstWavEncClass * klass)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
GstElementClass *element_class;
element_class = (GstElementClass *) klass;
element_class->change_state = GST_DEBUG_FUNCPTR (gst_wavenc_change_state);
gst_element_class_set_details_simple (element_class, "WAV audio muxer",
"Codec/Muxer/Audio",
@ -160,25 +165,13 @@ gst_wavenc_base_init (gpointer g_class)
}
static void
gst_wavenc_class_init (GstWavEncClass * klass)
{
GstElementClass *element_class;
element_class = (GstElementClass *) klass;
element_class->change_state = GST_DEBUG_FUNCPTR (gst_wavenc_change_state);
}
static void
gst_wavenc_init (GstWavEnc * wavenc, GstWavEncClass * klass)
gst_wavenc_init (GstWavEnc * wavenc)
{
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_set_setcaps_function (wavenc->sinkpad,
GST_DEBUG_FUNCPTR (gst_wavenc_sink_setcaps));
gst_pad_use_fixed_caps (wavenc->sinkpad);
gst_element_add_pad (GST_ELEMENT (wavenc), wavenc->sinkpad);
@ -199,7 +192,7 @@ gst_wavenc_create_header_buf (GstWavEnc * wavenc, guint audio_data_size)
guint8 *header;
buf = gst_buffer_new_and_alloc (WAV_HEADER_LEN);
header = GST_BUFFER_DATA (buf);
header = gst_buffer_map (buf, NULL, NULL, GST_MAP_WRITE);
memset (header, 0, WAV_HEADER_LEN);
wave.common.wChannels = wavenc->channels;
@ -236,7 +229,7 @@ gst_wavenc_create_header_buf (GstWavEnc * wavenc, guint audio_data_size)
memcpy (header + 36, (char *) wave.data.id, 4);
GST_WRITE_UINT32_LE (header + 40, wave.data.len);
gst_buffer_set_caps (buf, GST_PAD_CAPS (wavenc->srcpad));
gst_buffer_unmap (buf, header, -1);
return buf;
}
@ -246,10 +239,11 @@ gst_wavenc_push_header (GstWavEnc * wavenc, guint audio_data_size)
{
GstFlowReturn ret;
GstBuffer *outbuf;
GstSegment segment;
/* seek to beginning of file */
gst_pad_push_event (wavenc->srcpad,
gst_event_new_new_segment (FALSE, 1.0, GST_FORMAT_BYTES, 0, -1, 0));
gst_segment_init (&segment, GST_FORMAT_BYTES);
gst_pad_push_event (wavenc->srcpad, gst_event_new_segment (&segment));
GST_DEBUG_OBJECT (wavenc, "writing header with datasize=%u", audio_data_size);
@ -273,13 +267,18 @@ gst_wavenc_sink_setcaps (GstPad * pad, GstCaps * caps)
GstStructure *structure;
const gchar *name;
gint chans, rate, width;
GstCaps *ccaps;
wavenc = GST_WAVENC (gst_pad_get_parent (pad));
if (wavenc->sent_header && !gst_caps_can_intersect (caps, GST_PAD_CAPS (pad))) {
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_DEBUG_OBJECT (wavenc, "got caps: %" GST_PTR_FORMAT, caps);
@ -621,6 +620,17 @@ gst_wavenc_event (GstPad * pad, GstEvent * event)
wavenc = GST_WAVENC (gst_pad_get_parent (pad));
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_CAPS:
{
GstCaps *caps;
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
@ -641,7 +651,7 @@ gst_wavenc_event (GstPad * pad, GstEvent * event)
res = gst_pad_event_default (pad, event);
break;
}
case GST_EVENT_NEWSEGMENT:
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);
@ -679,15 +689,14 @@ gst_wavenc_chain (GstPad * pad, GstBuffer * buf)
}
GST_LOG_OBJECT (wavenc, "pushing %u bytes raw audio, ts=%" GST_TIME_FORMAT,
GST_BUFFER_SIZE (buf), GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buf)));
gst_buffer_get_size (buf), GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buf)));
buf = gst_buffer_make_metadata_writable (buf);
buf = gst_buffer_make_writable (buf);
gst_buffer_set_caps (buf, GST_PAD_CAPS (wavenc->srcpad));
GST_BUFFER_OFFSET (buf) = WAV_HEADER_LEN + wavenc->length;
GST_BUFFER_OFFSET_END (buf) = GST_BUFFER_OFFSET_NONE;
wavenc->length += GST_BUFFER_SIZE (buf);
wavenc->length += gst_buffer_get_size (buf);
flow = gst_pad_push (wavenc->srcpad, buf);
@ -715,7 +724,7 @@ gst_wavenc_change_state (GstElement * element, GstStateChange transition)
break;
}
ret = parent_class->change_state (element, transition);
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
if (ret != GST_STATE_CHANGE_SUCCESS)
return ret;