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msdk: vc1_dec: Add Advanced profile (WVC1) support

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Only supporting asf header-format having BDUs with startcode.
It might be possible to support other formats too, but haven't tested.

https://bugzilla.gnome.org/show_bug.cgi?id=792589
This commit is contained in:
Sreerenj Balachandran 2018-02-13 14:41:52 -09:00
parent 55c0d7205d
commit 173b07ba11
1 changed files with 25 additions and 5 deletions
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30
sys/msdk/gstmsdkvc1dec.c
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@ -31,6 +31,8 @@
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/* sample pipeline: gst-launch-1.0 filesrc location=video.wmv ! asfdemux ! vc1parse ! msdkvc1dec ! videoconvert ! xvimagesink */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
@ -50,7 +52,14 @@ static GstStaticPadTemplate sink_factory = GST_STATIC_PAD_TEMPLATE ("sink",
"format= (string) WMV3, "
"header-format= (string) none, "
"stream-format= (string) sequence-layer-frame-layer, "
"profile = (string) {simple, main}")
"profile = (string) {simple, main}" ";"
"video/x-wmv, "
"framerate = (fraction) [0/1, MAX], "
"width = (int) [ 1, MAX ], height = (int) [ 1, MAX ], "
"wmvversion= (int) 3, "
"format= (string) WVC1, "
"header-format= (string) asf, "
"stream-format= (string) bdu, " "profile = (string) advanced" ";")
);
#define gst_msdkvc1dec_parent_class parent_class
@ -59,6 +68,7 @@ G_DEFINE_TYPE (GstMsdkVC1Dec, gst_msdkvc1dec, GST_TYPE_MSDKDEC);
static gboolean
gst_msdkvc1dec_configure (GstMsdkDec * decoder)
{
GstBuffer *buffer;
GstCaps *caps;
GstStructure *structure;
const gchar *profile_str;
@ -71,16 +81,26 @@ gst_msdkvc1dec_configure (GstMsdkDec * decoder)
if (!structure)
return FALSE;
profile_str = gst_structure_get_string (structure, "profile");
decoder->param.mfx.CodecId = MFX_CODEC_VC1;
profile_str = gst_structure_get_string (structure, "profile");
if (!strcmp (profile_str, "simple"))
decoder->param.mfx.CodecProfile = MFX_PROFILE_VC1_SIMPLE;
else if (!strcmp (profile_str, "main"))
decoder->param.mfx.CodecProfile = MFX_PROFILE_VC1_MAIN;
else
return FALSE;
else {
decoder->param.mfx.CodecProfile = MFX_PROFILE_VC1_ADVANCED;
/* asf advanced profile codec-data has 1 byte in the begining
* which is the ASF binding byte. MediaSDK can't recognize this
* byte, so discard it */
buffer = gst_buffer_copy_region (decoder->input_state->codec_data,
GST_BUFFER_COPY_DEEP | GST_BUFFER_COPY_MEMORY, 1,
gst_buffer_get_size (decoder->input_state->codec_data) - 1);
gst_adapter_push (decoder->adapter, buffer);
decoder->is_packetized = FALSE;
}
return TRUE;
}