This saves one malloc + memcpy per packet
The CodedBitstreamFragment buffer is padded to follow the requirements
of AVPacket.
Reviewed-by: jkqxz
Signed-off-by: James Almer <jamrial@gmail.com>
mov_read_ctts ignores ctts entries having count <= 0. Generally, the
aggregate of all ctts entries' count fields resulting from mov_read_ctts
can be less than the corresponding sample_count.
mov_build_index attempts to normalize any existing ctts_data counts to
be 1, to make a 1-1 mapping of a ctts_data entry to a sample.
That 1-1 mapping left a tail of uninitialized ctts_data entries when the
aggregate, normalized ctts_count < sample_count.
Even more generally, later usage of ctts_data may depend on the entire
ctts_allocated_size having been initialized.
This change memsets the entire allocation of the normalized ctts_data in
mov_build_index, to prevent use of uninitialized data later.
BUG=816787
Change-Id: I7fd7db255e3aeed076ee32c90cb2df211741c052
Reviewed-on: https://chromium-review.googlesource.com/947110
Reviewed-by: Xiaohan Wang <xhwang@chromium.org>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Due to the union construct, unused bits in bitplane_present.value might
be uninitialized even when the used bits are all set to a value.
Masking the unused bits prevents spurious true values when all used
bits are unset, e.g. skipped pictures.
Signed-off-by: Jerome Borsboom <jerome.borsboom@carpalis.nl>
Pass necessary bitstream elements to the VAAPI VC-1 decoder in order
to start doing interlaced decoding in hardware.
Signed-off-by: Jerome Borsboom <jerome.borsboom@carpalis.nl>
We need to pass more bitstream elements to the VAAPI VC-1 decoder in
order to start doing interlaced decoding in hardware.
Signed-off-by: Jerome Borsboom <jerome.borsboom@carpalis.nl>
Update dump_extra bit stream filter docs to follow current
code implement.
Signed-off-by: Jun Zhao <jun.zhao@intel.com>
Reviewed-by: Steven Liu <lq@onvideo.cn>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
nvenc doesn't support P016, but we have two problems today:
1) We declare support for YUV444P16 which nvenc also doesn't support.
We do this because it's the only pix_fmt we have that can
approximate nvenc's internal format that is YUV444P10 with data in
MSBs instead of LSBs. Because the declared format is a 16bit one,
it will be preferrentially chosen when encoding >10bit content,
but that content will normally be YUV420P12 or P016 which should
get mapped to P010 and not YUV444P10.
2) Transcoding P016 content with nvenc should be possible in a pure
hardware pipeline, and that can't be done if nvenc doesn't say it
accepts P016. By mapping it to P010, we can use it, albeit with
truncation. I have established that swscale doesn't know how to
dither to 10bits so we'd get truncation anyway, even if we tried
to do this 'properly'.
To make the best use of existing code, I generalised the wrapper
that currently does yuv420p10 to p010 to support any mixture of
input and output sizes between 10 and 16 bits. This had the side
effect of yielding a working code path for all yuv420p1x formats
to p01x.
fix ticket: #7044
Get the first video stream to reference for split segment
when there have more than one video stream
Signed-off-by: Steven Liu <lq@chinaffmpeg.org>
Reviewed-by: Karthick Jeyapal <kjeyapal@akamai.com>
The allocated size of sc->ctts_data is
(st->nb_index_entries + entries) * sizeof(*sc->ctts_data).
The size to memset at offset sc->ctts_data + sc->ctts_count should be
(st->nb_index_entries + entries - sc->ctts_count) *
sizeof(*sc->ctts_data))
The current code missed |entries| I believe, which was introduced in
https://patchwork.ffmpeg.org/patch/5541/.
However, after offline discussion, it seems the original code is much
more clear to read (before https://patchwork.ffmpeg.org/patch/5541/).
Hence this CL revert the memset logic to it's previous state by
remembering the |old_ctts_allocated_size|, and only memset the newly
allocated entries.
BUG=812567
Change-Id: Ibe94c7138e5818bfaae76866bfa6619a9b8a2b6b
Reviewed-on: https://chromium-review.googlesource.com/934925
Reviewed-by: Dale Curtis <dalecurtis@chromium.org>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Obviously this is still not perfect, but better then it was. Using the first
index table and mxf->current_edit_unit is still hardcoded in many places, so
this change has hopefully the less chance of breaking anything that works
now.
Signed-off-by: Marton Balint <cus@passwd.hu>
Use body_offset of the partitions to search for the partition with the given
offset in the essence. This makes the function find the correct partition for
non frame-wrapped essences as well, where only the essence data is part of the
the edit unit byte count, not the KLV-s.
Signed-off-by: Marton Balint <cus@passwd.hu>
In order to do that we have to parse the EssenceContainerData and assign the
proper body_sid and index_sid to the tracks from the corresponding source
packages.
This fixes packets returned in the wrong stream for some OP1-b files.
Based on a patch by Alex Mogurenko from https://github.com/da8eat/FFmpeg
Reference: http://mogurenko.com/2018/01/02/mxf-op1b-ffmpeg-part1/
Signed-off-by: Marton Balint <cus@passwd.hu>
The reference point for a KAG is the first byte of the key of a Partition Pack.
Fixes ticket #2817.
Fixes ticket #5317.
Signed-off-by: Marton Balint <cus@passwd.hu>
This patch makes it possible to dinamically close the current segment
and step to the next one by introducing command handling capabilities
into the filter. This new feature is very usefull when working with
real-time sources or live streams as source. Combinig usage with zmqsend
tool you can interactively end the current segment and step to next one.
Signed-off-by: Bela Bodecs <bodecsb@vivanet.hu>
Fixes: 6154/clusterfuzz-testcase-minimized-5762231061970944
Fixes: runtime error: shift exponent 63 is too large for 32-bit type 'int'
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
External headers are no longer welcome in the ffmpeg codebase because they
increase the maintenance burden. However, in the NVidia case the vanilla
headers need some modifications to be usable in ffmpeg therefore we still
provide them, but in a separate repository.
The external headers can be found at
https://git.videolan.org/?p=ffmpeg/nv-codec-headers.git
Fate-source is updated because of the deleted files, and dynlink_loader.h
license headers were updated with the standard FFmpeg headers.
Signed-off-by: Marton Balint <cus@passwd.hu>
Signed-off-by: Timo Rothenpieler <timo@rothenpieler.org>
Fixes: Timeout
Fixes: 6266/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_RSCC_fuzzer-5692431816196096
Its not known if nb_tiles is allowed so it is not treated as an error
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
James Almer
Tobias Rapp
Matt Wolenetz
Jerome Borsboom
Philip Langdale
Jun Zhao
Tianqiang Liu
Matthieu Bouron
Serhii Marchuk
Vishwanath Dixit
Aurelien Jacobs
Steven Liu
Xiaohan Wang
Marton Balint
Rostislav Pehlivanov
Maxton
Bodecs Bela
Michael Niedermayer
Timo Rothenpieler
Karthick Jeyapal