CBS doesn't change its contents in any way whatsoever internally, and most
users already set it to a const array.
Signed-off-by: James Almer <jamrial@gmail.com>
This lets us re-utilize the extradata-related checks in the CBS
to add support for passing the AV1CodecConfigurationRecord
as extradata as-is without further filtering.
Let the internal decoder take care of it, as frame reordering
may result in different values exported by either module.
Signed-off-by: James Almer <jamrial@gmail.com>
Several cbs-functions had an unused CodedBitstreamContext parameter.
This commit removes these.
Reviewed-by: Mark Thompson <sw@jkqxz.net>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Initialize avctx->pix_fmt in av1_parser.c
AV1 Chroma format is invalid when quering using below code if no AV1 decoder
is available:
iVideoStream = av_find_best_stream(fmtc, AVMEDIA_TYPE_VIDEO, -1, -1, NULL, 0);
eChromaFormat = (AVPixelFormat)fmtc->streams[iVideoStream]->codecpar->format;
Signed-off-by: James Almer <jamrial@gmail.com>
Should fix fate-lavf-fate-av1.mkv failures on builds without an AV1 decoder.
Tested-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: James Almer <jamrial@gmail.com>
The first frame contains the sequence header, which is needed to parse every
following frame.
This fixes parsing streams with broken extradata but correct packet data.
Signed-off-by: James Almer <jamrial@gmail.com>
Currently, a fragment's unit array is constantly reallocated during
splitting of a packet. This commit changes this: One can keep the units
array by distinguishing between the number of allocated and the number
of valid units in the units array.
The more units a packet is split into, the bigger the benefit.
So MPEG-2 benefits the most; for a video coming from an NTSC-DVD
(usually 32 units per frame) the average cost of cbs_insert_unit (for a
single unit) went down from 6717 decicycles to 450 decicycles (based
upon 10 runs with 4194304 runs each); if each packet consists of only
one unit, it went down from 2425 to 448; for a H.264 video where most
packets contain nine units, it went from 4431 to 450.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@googlemail.com>
Simple parser to set keyframes, frame type, structure, width, height, and pixel
format, plus stream profile and level.
Reviewed-by: Mark Thompson <sw@jkqxz.net>
Signed-off-by: James Almer <jamrial@gmail.com>
James Almer
Jan Ekström
Andreas Rheinhardt
Manoj Bonda
Andreas Rheinhardt