On Mon, Apr 29, 2024 at 11:13:58PM +0200, Andreas Rheinhardt wrote: > This avoids constant allocations+frees and will also allow > to simply switch to the RefStruct API, thereby avoiding > the overhead of the AVBuffer API. > It also simplifies the code, because it removes the "needs_realloc" > field: It was added in 435c0b87d28b48dc2e0360adc404a0e2d66d16a0, > before the introduction of the AVBuffer API: given that these buffers > may be used by different threads, they were not freed immediately > and instead were marked as being freed later by setting needs_realloc. > > Signed-off-by: Andreas Rheinhardt <andreas.rheinha...@outlook.com> > --- > libavcodec/mpegpicture.c | 155 ++++++++----------------------------- > libavcodec/mpegpicture.h | 27 ++++--- > libavcodec/mpegvideo.c | 37 +++++++++ > libavcodec/mpegvideo.h | 2 + > libavcodec/mpegvideo_dec.c | 35 ++++----- > libavcodec/mpegvideo_enc.c | 13 ++-- > 6 files changed, 112 insertions(+), 157 deletions(-)
This seems to change the output of: ./ffmpeg -y -bitexact -i fate-suite/svq3/Vertical400kbit.sorenson3.mov -ps 50 -bf 1 -bitexact -an -qscale 5 -ss 40 -error_rate 4 -threads 1 /tmp/out4.avi && ./ffmpeg -y -bitexact -v -1 -loglevel 0 -i /tmp/out4.avi -bitexact -vsync drop -f framecrc - --- A 2024-04-30 22:01:12.964146819 +0200 +++ B 2024-04-30 22:00:57.407969834 +0200 @@ -38,7 +38,7 @@ 0, 32, 32, 1, 115200, 0x74c44bae 0, 33, 33, 1, 115200, 0x921c5255 0, 34, 34, 1, 115200, 0x9a8553a9 -0, 35, 35, 1, 115200, 0x817b6334 +0, 35, 35, 1, 115200, 0x310061fd 0, 36, 36, 1, 115200, 0x4c9a5f6d 0, 37, 37, 1, 115200, 0x5ee86279 0, 38, 38, 1, 115200, 0x04055061 @@ -74,7 +74,7 @@ 0, 68, 68, 1, 115200, 0x49dcbf4e 0, 69, 69, 1, 115200, 0x1ea1c7d1 0, 70, 70, 1, 115200, 0xdf77c67b -0, 71, 71, 1, 115200, 0x33d9d206 +0, 71, 71, 1, 115200, 0x7f6bd16d 0, 72, 72, 1, 115200, 0x5e37cb3a 0, 73, 73, 1, 115200, 0x15abcda3 0, 74, 74, 1, 115200, 0xbf4dcbd4 @@ -86,7 +86,7 @@ 0, 80, 80, 1, 115200, 0x17d1d667 0, 81, 81, 1, 115200, 0x0c1fdf9c 0, 82, 82, 1, 115200, 0x7eabde6b -0, 83, 83, 1, 115200, 0x3bf6e873 +0, 83, 83, 1, 115200, 0xe623e7af 0, 84, 84, 1, 115200, 0xf480dc82 0, 85, 85, 1, 115200, 0x5fd6e098 0, 86, 86, 1, 115200, 0xf520de95 @@ -98,7 +98,7 @@ 0, 92, 92, 1, 115200, 0x34cfe1c2 0, 93, 93, 1, 115200, 0x1d94e1c3 0, 94, 94, 1, 115200, 0x6d32e147 -0, 95, 95, 1, 115200, 0x09fbefd0 +0, 95, 95, 1, 115200, 0x7e40ee91 0, 96, 96, 1, 115200, 0xa5f5eb43 0, 97, 97, 1, 115200, 0x39b9ec3d 0, 98, 98, 1, 115200, 0x3256ec18 [...] -- Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB The misfortune of the wise is better than the prosperity of the fool. -- Epicurus
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