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14 commits

Author SHA1 Message Date
Wind Yuan
0fe727ba77 mpeg: fix picture used to determine backward_reference_vop_coding_type. 
Complete fix brought by bf9f77b1af
but Gwenole did not apply all the bits.

Signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
 2012-05-11 11:20:45 +02:00
Wind Yuan
c40c05dc45 mpeg4: map Simple_Scalable profile to Advanced_Simple profile. 
Signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
 2012-05-10 11:52:06 +02:00
Wind Yuan
96437a7a16 mpeg4: handle skipped frames (vop_hdr->coded = 0). 
Gracefully skip non VOP coded frames.

Signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
 2012-05-10 11:52:06 +02:00
Wind Yuan
1632b40982 mpeg4: fix timestamp issues on too fast playback. 
Improve generation of presentation timestamps to be less sensitive
to input stream errors. In practise, GOP is also a synchronization
point for PTS calculation.

Signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
 2012-05-10 11:38:06 +02:00
Wind Yuan
bf9f77b1af mpeg4: fix VOP coding type of backward reference pictures. 
Signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
 2012-04-12 11:48:24 +02:00
Wind Yuan
60b5c2da97 mpeg4: fix handling of temporal reference distances. 
TRD and TRB fields are not large enough to hold the difference of PTS
expressed with nanosecond resolution. So, compute them from the original
VOP info.

Signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
 2012-04-12 11:44:16 +02:00
Wind Yuan
b33dd69300 mpeg4: improve error checking while decoding packets. 
decode_picture() could return an error when an MPEG-4 profile is not
supported for example. In this case, the underlying VA context is not
allocated and no other proper action can be taken. Likewise on exit
from decode_slice().

Signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
 2012-03-30 17:23:38 +02:00
Wind Yuan
81ab8dad37 mpeg4: check for decoder status prior to decoding packet. 
Make sure there is a VA surface free prior to decoding the current frame.

Signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
 2012-03-22 14:44:42 +01:00
Gwenole Beauchesne
5cc357f88a cosmetics: fix warnings (drop unused variables). 2012-02-07 10:06:15 +01:00
Gwenole Beauchesne
0fb1147d9c Add header for system-dependent definitions. 2012-01-30 19:52:10 +01:00
Gwenole Beauchesne
2897618b85 decoder: properly reference count pictures. 
This fixes cases where a GstVaapiPicture would be destroyed whereas
there is still a valid instance of it in either prev, current or
next picture.
 2012-01-27 13:28:12 +01:00
Gwenole Beauchesne
e5d12e8853 decoder: rework the internal VA objects API. 
The new API simplifies a lot reference counting and makes it more
flexible for future additions/changes. The GstVaapiCodecInfo is
also gone. Rather, new helper macros are provided to allocate
picture, slice and quantization matrix parameter buffers.
 2012-01-27 13:28:11 +01:00
Zhao Halley
c0d8f2fb1f mpeg4: replace GstVaapiTSB with GstAdapter (gst-plugins-base >= 0.10.24). 
Signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
 2012-01-16 11:40:51 +01:00
Zhao Halley
6502783474 Add initial MPEG-4 decoder. 
Signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
 2012-01-16 11:40:51 +01:00