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avimux: put the codec_data blob into the actual data for MPEG4 video,

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to match other implementations in the wild.
This commit is contained in:
Michael Smith 2010-03-09 17:32:27 -08:00
parent efc54acc15
commit c3b0509beb
2 changed files with 42 additions and 9 deletions
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49
gst/avi/gstavimux.c
View file

@ -338,6 +338,11 @@ gst_avi_mux_pad_reset (GstAviPad * avipad, gboolean free)
vidpad->vids_codec_data = NULL;
}
if (vidpad->prepend_buffer) {
gst_buffer_unref (vidpad->prepend_buffer);
vidpad->prepend_buffer = NULL;
}
memset (&(vidpad->vids), 0, sizeof (gst_riff_strf_vids));
memset (&(vidpad->vprp), 0, sizeof (gst_riff_vprp));
} else {
@ -433,6 +438,7 @@ gst_avi_mux_vidsink_set_caps (GstPad * pad, GstCaps * vscaps)
const GValue *codec_data;
gint width, height;
gint par_n, par_d;
gboolean codec_data_in_headers = TRUE;
avimux = GST_AVI_MUX (gst_pad_get_parent (pad));
@ -498,15 +504,6 @@ gst_avi_mux_vidsink_set_caps (GstPad * pad, GstCaps * vscaps)
avipad->vprp.field_info[0].valid_bm_width = width;
}
/* codec initialization data, if any */
codec_data = gst_structure_get_value (structure, "codec_data");
if (codec_data) {
avipad->vids_codec_data = gst_value_get_buffer (codec_data);
gst_buffer_ref (avipad->vids_codec_data);
/* keep global track of size */
avimux->codec_data_size += GST_BUFFER_SIZE (avipad->vids_codec_data);
}
if (!strcmp (mimetype, "video/x-raw-yuv")) {
guint32 format;
@ -586,6 +583,11 @@ gst_avi_mux_vidsink_set_caps (GstPad * pad, GstCaps * vscaps)
case 4:
/* mplayer/ffmpeg might not work with DIVX, but with FMP4 */
avipad->vids.compression = GST_MAKE_FOURCC ('D', 'I', 'V', 'X');
/* DIVX/XVID in AVI store the codec_data chunk as part of the
first data buffer. So for this case, we prepend the codec_data
blob (if any) to that first buffer */
codec_data_in_headers = FALSE;
break;
default:
GST_INFO ("unhandled mpegversion : %d, fall back to fourcc=MPEG",
@ -620,6 +622,20 @@ gst_avi_mux_vidsink_set_caps (GstPad * pad, GstCaps * vscaps)
goto refuse_caps;
}
/* codec initialization data, if any */
codec_data = gst_structure_get_value (structure, "codec_data");
if (codec_data) {
if (codec_data_in_headers) {
avipad->vids_codec_data = gst_value_get_buffer (codec_data);
gst_buffer_ref (avipad->vids_codec_data);
/* keep global track of size */
avimux->codec_data_size += GST_BUFFER_SIZE (avipad->vids_codec_data);
} else {
avipad->prepend_buffer =
gst_buffer_ref (gst_value_get_buffer (codec_data));
}
}
avipad->parent.hdr.fcc_handler = avipad->vids.compression;
avipad->vids.image_size = avipad->vids.height * avipad->vids.width;
/* hm, maybe why avi only handles one stream well ... */
@ -1940,6 +1956,21 @@ gst_avi_mux_do_buffer (GstAviMux * avimux, GstAviPad * avipad)
data = gst_collect_pads_pop (avimux->collect, avipad->collect);
/* Prepend a special buffer to the first one for some formats */
if (avipad->is_video) {
GstAviVideoPad *vidpad = (GstAviVideoPad *) avipad;
if (vidpad->prepend_buffer) {
GstBuffer *newdata = gst_buffer_merge (vidpad->prepend_buffer, data);
gst_buffer_copy_metadata (newdata, data, GST_BUFFER_COPY_TIMESTAMPS);
gst_buffer_unref (data);
gst_buffer_unref (vidpad->prepend_buffer);
data = newdata;
vidpad->prepend_buffer = NULL;
}
}
if (avimux->restart) {
if ((res = gst_avi_mux_restart_file (avimux)) != GST_FLOW_OK)
return res;

2
gst/avi/gstavimux.h
View file

@ -105,6 +105,8 @@ typedef struct _GstAviVideoPad {
/* ODML video properties */
gst_riff_vprp vprp;
GstBuffer *prepend_buffer;
} GstAviVideoPad;
typedef struct _GstAviAudioPad {