The documentation of av_fourcc_make_string states the passed in
buffer must be of at least the size of AV_FOURCC_MAX_STRING_SIZE .
Using av_fourcc2str uses the correct buffer size and moves the
buffer into a nested scope while also being shorter.
Fixes: CID 1632380
Signed-off-by: Alexander Strasser <eclipse7@gmx.net>
If 'sname:*' is set in the var_stream_map variable, use it as
the NAME attribute for subtitles. This improves the naming of
subtitle streams in HTML players, providing clearer and more
descriptive labels for users.
Reviewed-by: Steven Liu <lq@chinaffmpeg.org>
Ensure that when the `-hls_flags omit_endlist` option is set,
the `#EXT-X-ENDLIST` tag is also omitted from the `stream_vtt.m3u8`
subtitle playlist. This maintains consistency with the behavior
in other playlists when `omit_endlist` is specified.
Reviewed-by: Steven Liu <lq@chinaffmpeg.org>
Ensure that when the `-hls_flags append_list` option is set,
that *.vtt files in stream_vtt.m3u8 are correctly updated.
This fixes https://trac.ffmpeg.org/ticket/11208
Reviewed-by: Steven Liu <lq@chinaffmpeg.org>
Note1: when the EOF pts is not accurate enough, the last frame
can be dropped by vf_fps with default rounding.
Note2: vf_scale use framesync since e82a3997cd,
so this is a very commonplace scenario.
For example:
./ffprobe -f lavfi testsrc=d=1,scale,fps -of flat \
-count_frames -show_entries stream=nb_read_frames
Before:
streams.stream.0.nb_read_frames="24"
After:
streams.stream.0.nb_read_frames="25"
Signed-off-by: Anton Khirnov <anton@khirnov.net>
When displaying help for overlay filter in CLI, the flags for x and y
parameters don't have the T flag. However these two parameters do have
the capability to be set at runtime, as implemented in commit
d2752ef061. This commit fixes the CLI documentation.
Signed-off-by: Anton Khirnov <anton@khirnov.net>
This is unreachable anyway so performance is not an issue here. Allows
guiding the compiler in all build modes to not emit a spurious warning
here:
warning: variable 'mag' is used uninitialized whenever switch default is taken
There's no need to keep using a custom decoder for this pixel format.
md5 values change because the nut container now reports rawvideo as encoder.
Signed-off-by: James Almer <jamrial@gmail.com>
There's no need to keep using a custom decoder for this pixel format.
md5 values change because the nut container now reports rawvideo as encoder.
Signed-off-by: James Almer <jamrial@gmail.com>
There's no need to keep using a custom decoder for this pixel format.
md5 values change because the nut container now reports rawvideo as encoder.
Signed-off-by: James Almer <jamrial@gmail.com>
The original either reported 8 or 16-bit conversion from the
original, rather than being able to return the actual original.
This makes it usable in a situation where preserving exactness
is required.
It can't be higher than vps_max_sub_layers.
Do this while keeping the workaround for qsvenc_hevc calling ff_hevc_parse_sps()
without a vps_list, as in some cases it needs to parse an sps to generate a fake
vps derived from it.
Signed-off-by: James Almer <jamrial@gmail.com>
I.e. those that are only used to figure out input/output counts, since
some filters might expect a valid hw device in init and refuse to
initalize otherwise.
This requires complex filtergraphs to be created in a separate step
after parsing global options, after all hw devices are guaranteed to
exist.
Likely a tighter check can be done
Fixes: signed integer overflow: 3305606804154370442 * 8 cannot be represented in type 'long'
Fixes: 70449/clusterfuzz-testcase-minimized-ffmpeg_dem_WEBM_DASH_MANIFEST_fuzzer-4771166007918592
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This basically ignores the overflow without undefined behavior, alternatively we could detect and error out
Fixes: signed integer overflow: 6310596683470275584 + 7660622966157213696 cannot be represented in type 'long'
Fixes: 70433/clusterfuzz-testcase-minimized-ffmpeg_IO_DEMUXER_fuzzer-5483347233538048
Fixes: 369662284/clusterfuzz-testcase-minimized-media_metadata_parser_fuzzer-5327368763670528
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
