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1127 commits 44 branches 1509 tags 459 MiB
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73 commits

Author SHA1 Message Date
Wind Yuan
fc3edde05c mpeg2: don't decode anything before the first sequence_header(). 
Skip all pictures prior to the first sequence_header(). Besides,
skip all picture_data() if there was no prior picture_header().

Signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
 2012-03-21 17:38:22 +01:00
Gwenole Beauchesne
d6ab5e1210 mpeg2: fix is_first_field calculation. 
Reset is_first_field for frame pictures. Factor out locations where
the flag is updated.
 2012-03-16 13:56:48 +01:00
Gwenole Beauchesne
10dfc67cca mpeg2: catch incorrect picture_structure from bitstreams. 
Assume "frame" picture structure if the syntax element was zero or if
progressive_frame is set.
 2012-03-16 13:56:26 +01:00
Gwenole Beauchesne
8bbe22f831 mpeg2: fix slice_vertical_position calculation (again). 
VA-API expects slice_vertical_position as the initial position from the
bitstream. i.e. the direct slice() information. VA drivers will be fixed
accordingly.
 2012-03-16 13:55:28 +01:00
Sreerenj Balachandran
033a675bcc mpeg2: fix size calculation from sequence_extension(). 
Original values from sequence_header() are 12-bit and the remaining
2 most significant bits are coming from sequence_extension().

Signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
 2012-02-24 11:09:05 +01:00
Gwenole Beauchesne
f1883b4a4e mpeg2: fix slice_vertical_position calculation. 
Make sure to adjust slice_vertical_position if picture structure
is a top or bottom field.
 2012-02-23 16:41:11 +01:00
Gwenole Beauchesne
3bc68b5b32 mpeg2: fix decoding at end-of-sequence. 2012-02-23 16:15:23 +01:00
Gwenole Beauchesne
60e515e0b7 mpeg2: fix slice_horizontal_position calculation. 2012-02-23 16:15:22 +01:00
Gwenole Beauchesne
b36d2c810e mpeg2: drop useless mb_y and mb_height members. 2012-02-23 16:14:02 +01:00
Gwenole Beauchesne
d47031b8ce mpeg2: fix decoding of multiple slices with same slice_vertical_position. 
6.3.15 says that "some slices may have the same slice_vertical_position,
since slices may start and finish anywhere". So, we can't submit the current
picture to the HW right away since subsequent slices would be missing.
 2012-02-23 11:19:48 +01:00
Gwenole Beauchesne
5cc357f88a cosmetics: fix warnings (drop unused variables). 2012-02-07 10:06:15 +01:00
Gwenole Beauchesne
d75d70d395 mpeg2: fix crash when there is no free surface to decode into. 2012-02-06 15:54:42 +01:00
Gwenole Beauchesne
11d09495ea mpeg2: use GstAdapter to track input sequence. 
This fixes possible memory leaks and improves performance by removing
some extra copies.
 2012-01-31 11:02:04 +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
27fa5903ef mpeg2: fix first field detection. 
Signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
 2012-01-16 11:40:51 +01:00
Gwenole Beauchesne
a591dc3b72 mpeg2: fix quantisation matrix construction. 2012-01-16 11:40:50 +01:00
Sreerenj Balachandran
697a2804e1 mpeg2: replace GstVaapiTSB API with GstAdapter (gst-plugins-base >= 0.10.24). 
Signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
 2012-01-16 11:40:50 +01:00
Gwenole Beauchesne
ab8f602957 mpeg2: fix packets spanning over two buffers. 2012-01-16 11:40:50 +01:00
Gwenole Beauchesne
ce413eb83d mpeg2: ignore system start codes (PES headers). 2012-01-16 11:40:50 +01:00
Gwenole Beauchesne
c5902b7a84 mpeg2: handle closed_gop. 2012-01-16 11:40:50 +01:00
Gwenole Beauchesne
49b4702fb6 Add initial MPEG-2 decoder. 2012-01-16 11:40:50 +01:00