Chiebot-Mirror/FFmpeg - FFmpeg - Gitea: Git with a cup of tea

Author	SHA1	Message	Date
Wenbin Chen	76b33704b6	avcodec/mpegvideo_enc: Fix a chroma mb size error in sse_mb() For 422 frames we should not use hard coded 8 to calculate mb size for uv plane. Chroma shift should be taken into consideration to be compatiple with different sampling format. The error is reported by fate test when av_cpu_max_align() return 64 on the platform supporting AVX512. This is a hidden error and it is exposed after commit `17a59a634c`. mpeg2enc has a mechanism to reuse frames. When it computes SSE (sum of squared error) on current mb, reconstructed mb will be wrote to the previous mb space, so that the memory can be saved. However if the align is 64, the frame is shared in somewhere else, so the frame cannot be reused and a new frame to store reconstrued data is created. Because the height of mb is wrong when compute sse on 422 frame, starting from the second line of macro block, changed data is read when frame is reused (we need to read row 16 rather than row 8 if frame is 422), and unchanged data is read when frame is not reused (a new frame is created so the original frame will not be changed). That is why commit `17a59a634c` exposes this issue, because it add av_cpu_max_align() and this function return 64 on platform supporting AVX512 which lead to creating a frame in mpeg2enc, and this lead to the different outputs. Signed-off-by: Wenbin Chen <wenbin.chen@intel.com> Signed-off-by: Marton Balint <cus@passwd.hu>	2 years ago
Mark Thompson	4c0588b456	mpeg2enc: Don't mark all streams as component video Since there is no information about the source format, "unspecified" is the correct value to write here. All tests using the MPEG-2 encoder are updated, as this changes the header on all outputs.	7 years ago
Michael Niedermayer	3b42a8e439	avcodec/mpeg12enc: store sequence display extension only if we have something to store in it Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Marc-Antoine Arnaud	8a06794112	mpeg2: add sequence display extension information Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>	11 years ago
Marton Balint	a0cf87780d	mpeg12enc: always set closed gop flag on the first gop Improves compatibility with XDCAM HD formats. It has been set for a long time in ffmbc. Reviewed-by: Michael Niedermayer <michaelni@gmx.at> Signed-off-by: Marton Balint <cus@passwd.hu>	11 years ago
Janne Grunau	c8148e5c93	fate: move vsynth reference files to their own directory	12 years ago
Michael Niedermayer	9e9b5159e9	mpegvideo_enc: reduce QMAT_SHIFT to avoid overflow in dnxhd Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Mans Rullgard	7263cd5544	fate: convert codec-regression.sh to makefile rules Signed-off-by: Mans Rullgard <mans@mansr.com>	13 years ago