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authorGwenole Beauchesne <gb.devel@gmail.com>2012-03-18 09:46:58 +0100
committerMartin Storsjö <martin@martin.st>2012-04-08 13:08:52 +0300
commit9cb150c9ab520eba5636bbcf925db6a70e67f3e5 (patch)
tree64222f328ee01908707bc57ac6d45b6f89ee1428 /libavfilter/Makefile
parent2ce7f4d4e6f3498f8a15a8bee3d124b589474197 (diff)
downloadffmpeg-9cb150c9ab520eba5636bbcf925db6a70e67f3e5.tar.gz
hwaccel: mpeg2: decode first field, if requested.
If user opted to present fields as they come, then the first field picture needs to be submitted to the HW for decoding. In particular, this fixes MPEG-2 decoding of interlaced streams. Tested on Intel Cedar Trail, Sandy Bridge and Ivy Bridge platforms. Someone reported on the ffmpeg-devel@ list this also works on DXVA (Windows) and other Linux platforms (NVIDIA, through the VA wrapper). This also means a similar patch to non-hwaccel VDPAU may be necessary. Note: I believe the SLICE_FLAG_ALLOW_FIELD is useless since the first field shall always be submitted to the HW anyway. Nobody uses HW accels (dxva, vaapi, vdpau, etc.) without that flag though. Signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com> Signed-off-by: Martin Storsjö <martin@martin.st>
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