This patch applies same changes as commit e3dfef8e3c of libav:
instead of the obsolete AVBitStreamFilterContext now the new AVBSFContext filter is used to
restore annex-B prefixes.
Based-on: e3dfef8e3c by Anton Khirnov
Push requested by maintainer
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This version has had much testing so there's little point in keeping it
maked as experimental.
Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>
Does nothing fancy but still sounds very decent at 128kbps.
Still room to improve by bringing in the low pass and PNS management
from the main big twoloop which should improve its quality but not
sacrifice that much speed.
Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>
Use of this function can save unnecessary malloc operation
in bitstream filter.
Signed-off-by: Jan Sebechlebsky <sebechlebskyjan@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Set BSF EOF flag only if pkt == NULL in av_bsf_send_packet().
Signed-off-by: Jan Sebechlebsky <sebechlebskyjan@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This makes it easier to use the lowres option when dealing with input
files in different codecs. If the codec doesn't support lowres=1 for
instance, it will throw a warning and use lowres=0 instead of erroring
out completely.
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This is required for >= 16bit RGB support
I tried it without templates but its too much duplicated code
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This patch fixes the h264_qsv decoder issues mentioned
in https://ffmpeg.zeranoe.com/forum/viewtopic.php?t=2962.
The patch may be tested by specifying h264_qsv as the decoder to ffplay
for an h264 encoded file.
ffplay -vcodec h264_qsv foo.mts
Signed-off-by: Yuli Khodorkovskiy <ykhodo@gmail.com>
Push requested-by: Ivan Uskov
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Also don't include it on files that don't need it.
This reduces differences with libav
Tested-by: Timothy Gu <timothygu99@gmail.com>
Reveiwed-by: Carl Eugen Hoyos <ceffmpeg@gmail.com>
Signed-off-by: James Almer <jamrial@gmail.com>
10- and 12-bit DNxHR use the same DC coefficient decoding process and
VLC table, just with a different shift value. From SMPTE 2019-1:2016,
8.2.4 DC Coefficient Decoding:
"For 8-bit video sampling, the maximum value of η=11 and for
10-/12-bit video sampling, the maximum value of η=13."
A sample file will be uploaded to show that with this patch, things
decode correctly:
dnxhr_hqx_12bit_1080p_smpte_colorbars_davinci_resolve.mov
Signed-off-by: Steven Robertson <steven@strobe.cc>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Most systems have this, so it isn't really a problem to include it
even if it's not used, but some do not have memory.h as it is
non-standard. Since it's unused just remove it anyway.
If a JNI environment is not already attached to the thread where the
MediaCodec calls are made the current implementation will attach /
detach an environment for each MediaCodec call wasting some CPU time.
ff_jni_get_env replaces ff_jni_{attach,detach} by permanently attaching
an environment (if it is not already the case) to the current thread.
The environment will be automatically detached at the thread destruction
using a pthread_key callback.
Saves around 5% of CPU time (out of 20%) while decoding a stream with
MediaCodec.
It's a small and simple function that can be inlined.
This removes one private symbol and should reduce object dependencies with the next
major bump
Signed-off-by: James Almer <jamrial@gmail.com>
lavc/movenc rely on avpriv_dnxhd_parse_header_prefix declared by
dnxhddata.h since e47981dab7.
Fixes a missing symbol error in lavc/movenc if the dnxhd encoder is not
enabled.
This reverts commit d30cf57a7b, reversing changes made to
acc155ac55. The commit d30cf57a7b
provided irrelevant code complexity and decoding slowdown. But the main disadvantage of this
commit is a decoder crash. So it should be reverted.
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Jon Toohill
Jan Sebechlebsky
Paul B Mahol
Ivan Uskov
Rostislav Pehlivanov
Carl Eugen Hoyos
Mark Reid
Aman Gupta
Michael Niedermayer
Yuli Khodorkovskiy
James Almer
Timothy Gu
Steven Robertson
Josh de Kock
Clément Bœsch
Matthieu Bouron
Martin Storsjö
Ronald S. Bultje