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ext/ffmpeg/gstffmpegdec.c: Move negotiation outside the _chain function, and use the codec PAR if available and prefe...

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Original commit message from CVS:
* ext/ffmpeg/gstffmpegdec.c: (gst_ffmpegdec_init),
(gst_ffmpegdec_close), (gst_ffmpegdec_connect),
(gst_ffmpegdec_negotiate), (gst_ffmpegdec_chain):
Move negotiation outside the _chain function, and use the
codec PAR if available and prefer it over demuxer PAR (since
this is usually the right thing to do). Fixes #159755.
This commit is contained in:
Ronald S. Bultje 2004-12-16 12:47:43 +00:00
parent bcb1f09609
commit 4ea32a6a05
2 changed files with 74 additions and 26 deletions
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9
ChangeLog
View file

@ -1,3 +1,12 @@
2004-12-16 Ronald S. Bultje <rbultje@ronald.bitfreak.net>
* ext/ffmpeg/gstffmpegdec.c: (gst_ffmpegdec_init),
(gst_ffmpegdec_close), (gst_ffmpegdec_connect),
(gst_ffmpegdec_negotiate), (gst_ffmpegdec_chain):
Move negotiation outside the _chain function, and use the
codec PAR if available and prefer it over demuxer PAR (since
this is usually the right thing to do). Fixes #159755.
2004-12-16 Sebastien Cote <sc5@hermes.usherb.ca>
Reviewed by: Ronald S. Bultje <rbultje@ronald.bitfreak.net>

91
ext/ffmpeg/gstffmpegdec.c
View file

@ -196,6 +196,7 @@ gst_ffmpegdec_init (GstFFMpegDec * ffmpegdec)
ffmpegdec->context = avcodec_alloc_context ();
ffmpegdec->picture = avcodec_alloc_frame ();
ffmpegdec->par = NULL;
ffmpegdec->opened = FALSE;
}
@ -219,6 +220,11 @@ gst_ffmpegdec_close (GstFFMpegDec *ffmpegdec)
if (!ffmpegdec->opened)
return;
if (ffmpegdec->par) {
g_free (ffmpegdec->par);
ffmpegdec->par = NULL;
}
if (ffmpegdec->context->priv_data)
avcodec_close (ffmpegdec->context);
ffmpegdec->opened = FALSE;
@ -301,8 +307,15 @@ gst_ffmpegdec_connect (GstPad * pad, const GstCaps * caps)
/* open codec - we don't select an output pix_fmt yet,
* simply because we don't know! We only get it
* during playback... */
return gst_ffmpegdec_open (ffmpegdec) ?
GST_PAD_LINK_OK : GST_PAD_LINK_REFUSED;
if (!gst_ffmpegdec_open (ffmpegdec)) {
if (ffmpegdec->par) {
g_free (ffmpegdec->par);
ffmpegdec->par = NULL;
}
return GST_PAD_LINK_REFUSED;
}
return GST_PAD_LINK_OK;
}
#if 0
@ -358,8 +371,55 @@ gst_ffmpegdec_release_buffer (AVCodecContext * context, AVFrame * picture)
}
#endif
#define ROUND_UP_2(x) (((x) + 1) & ~1)
#define ROUND_UP_4(x) (((x) + 3) & ~3)
static gboolean
gst_ffmpegdec_negotiate (GstFFMpegDec * ffmpegdec)
{
GstFFMpegDecClass *oclass =
(GstFFMpegDecClass *) (G_OBJECT_GET_CLASS (ffmpegdec));
GstCaps *caps;
caps = gst_ffmpeg_codectype_to_caps (oclass->in_plugin->type,
ffmpegdec->context);
/* add in pixel-aspect-ratio if we have it,
* prefer ffmpeg par over sink par (since it's provided
* by the codec, which is more often correct).
*/
if (caps) {
if (ffmpegdec->context->sample_aspect_ratio.num &&
ffmpegdec->context->sample_aspect_ratio.den) {
GST_DEBUG ("setting ffmpeg provided pixel-aspect-ratio");
gst_structure_set (gst_caps_get_structure (caps, 0),
"pixel-aspect-ratio", GST_TYPE_FRACTION,
ffmpegdec->context->sample_aspect_ratio.num,
ffmpegdec->context->sample_aspect_ratio.den,
NULL);
} else if (ffmpegdec->par) {
GST_DEBUG ("passing on pixel-aspect-ratio from sink");
gst_structure_set (gst_caps_get_structure (caps, 0),
"pixel-aspect-ratio", GST_TYPE_FRACTION,
gst_value_get_fraction_numerator (ffmpegdec->par),
gst_value_get_fraction_denominator (ffmpegdec->par),
NULL);
}
}
if (caps == NULL ||
!gst_pad_set_explicit_caps (ffmpegdec->srcpad, caps)) {
GST_ELEMENT_ERROR (ffmpegdec, CORE, NEGOTIATION, (NULL),
("Failed to link ffmpeg decoder (%s) to next element",
oclass->in_plugin->name));
if (caps != NULL)
gst_caps_free (caps);
return FALSE;
}
gst_caps_free (caps);
return TRUE;
}
static void
gst_ffmpegdec_chain (GstPad * pad, GstData * _data)
@ -484,31 +544,10 @@ gst_ffmpegdec_chain (GstPad * pad, GstData * _data)
if (have_data) {
if (!GST_PAD_CAPS (ffmpegdec->srcpad)) {
GstCaps *caps;
caps = gst_ffmpeg_codectype_to_caps (oclass->in_plugin->type,
ffmpegdec->context);
/* add in pixel-aspect-ratio if we have it */
if (caps && ffmpegdec->par) {
GST_DEBUG_OBJECT (ffmpegdec, "setting pixel-aspect-ratio");
gst_structure_set (gst_caps_get_structure (caps, 0),
"pixel-aspect-ratio", GST_TYPE_FRACTION,
gst_value_get_fraction_numerator (ffmpegdec->par),
gst_value_get_fraction_denominator (ffmpegdec->par),
NULL);
}
if (caps == NULL ||
!gst_pad_set_explicit_caps (ffmpegdec->srcpad, caps)) {
GST_ELEMENT_ERROR (ffmpegdec, CORE, NEGOTIATION, (NULL),
("Failed to link ffmpeg decoder (%s) to next element",
oclass->in_plugin->name));
if (caps != NULL)
gst_caps_free (caps);
if (!gst_ffmpegdec_negotiate (ffmpegdec)) {
gst_buffer_unref (outbuf);
return;
}
gst_caps_free (caps);
}
if (GST_PAD_IS_USABLE (ffmpegdec->srcpad))