Shifting by more than 63 bits is undefined behavior, athough any
compiler not returning 0 after shifting by any amount would be insane.
Found by Coverity, fixes CID1363959 and CID1363960
Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>
* commit 'ec9f04423b82afa323e90f5b2c677be74302c1fd':
ffv1: Error out on unsupported format
This commit is a noop, the feature is already present in FFmpeg.
Merged-by: Matthieu Bouron <matthieu.bouron@stupeflix.com>
Fix the demuxer dependencies in some of the tests and remove the vp8 decoder
dependency for the stream copy tests
Reviewed-by: Hendrik Leppkes <h.leppkes@gmail.com>
Signed-off-by: James Almer <jamrial@gmail.com>
* commit '76729970049fe95659346503f7401a5d869f9959':
mov: Implement support for multiple sample description tables
Notes:
* The sc->stsc_data[index].id checks have been moved from the mov_read_stsc
to mov_read_packet before the value is used in mov_change_extradata to
not break playback of samples with broken stsc entries (see sample of
ticket #1918).
* sc->stsc_index is now checked against sc->stsc_count - 1 before it
is incremented so it remains lesser than sc->stsc_count. Fixes a crash
with:
./ffmpeg -i matrixbench_mpeg2.mpg -t 1 -frag_duration 200k test.mov
./ffprobe -show_packets test.mov
Merged-by: Matthieu Bouron <matthieu.bouron@stupeflix.com>
Chrome canary now supports decoding of VP9 streams with alpha
channel [1]. Add support to ffmpeg for creating such files.
[1] https://codereview.chromium.org/2096813002/
Reviewed-by: James Zern <jzern@google.com>
Signed-off-by: Vignesh Venkatasubramanian <vigneshv@google.com>
Still much left to optimize, but it provides a significant performance
improvement - 10% for 300Mbps (1080p30), 25% for 1.5Gbps (4k 60fps) in
comparison with the default implementation.
Signed-off-by: Rostislav Pehlivanov <rpehlivanov@obe.tv>
Now coefficients are written to a buffer and are then dequantized by the
new SIMD dequantization functions. For the lower bands without enough
coefficients to fill a register (and hence they overwrite) the C version
of the dequantization function is used.
The buffer is per-thread and will be realloc'd if anything changes.
This prevents regressions and having to limit slice size.
Signed-off-by: Rostislav Pehlivanov <rpehlivanov@obe.tv>
Prevents having to have random magic values in the decoder and a
separate macro in the encoder.
Signed-off-by: Rostislav Pehlivanov <rpehlivanov@obe.tv>
In preparation for the following commits, this commit simplifies the
coefficient parsing and dequantization function. It was needlessly
inlined without much performance gain.
Signed-off-by: Rostislav Pehlivanov <rpehlivanov@obe.tv>
This allows simpler selection of flac in ogg from the command line,
while following the RFC 5334 recommendation[1] for the oga extension.
[1] https://tools.ietf.org/html/rfc5334#section-10.3
Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: James Almer <jamrial@gmail.com>
support split hls segment at duration set by hls_time
Signed-off-by: LiuQi <liuqi@gosun.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This is an - once again - updated patch, that uses avio_write instead
of avio_puts to stream clean text output without null characters. Works
now for me as intended.
Changes metadata filter to accept general urls as file argument without
breaking former behaviour. As a byproduct, it also allows for writing to
file "-" if specified as "file:-".
Example:
ffmpeg -i test.wav -filter_complex "silencedetect=n=-40dB:d=0.1,ametadata=mode=print:file='pipe\:4'" -f null
Signed-off-by: Sami Hult <sami.hult@gmail.com>
Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This reverts commit cb8646af24.
This change has brough more issues than benefits, between compilation
time failures depending on flags used and code miscompilation causing
runtime crashes.
See the "[PATCH 2/2] configure: Enable GCC vectorization on ≥4.9"
thread in the ffmpeg-devel mailing list for the relevant discussion.
* commit 'a2ddfadc2d9e91cf70aa7430a7340b418bdb5b42':
avdevice: Ignore timefilter test program
This commit is a noop, /timefilter entry was added in the original merge
(5d48e4eafa)
Merged-by: Clément Bœsch <u@pkh.me>
* commit 'd6c2c2796d8885e99fc90793cdd7937826f82fab':
LICENSE: Fix silly typo
This commit is a noop, the typo disappeared when the whole paragraph was
reworked in 484aec4da3.
Merged-by: Clément Bœsch <u@pkh.me>
* commit '05a4bacbf7ece618553d339afe1d0b57bc87aea8':
avpacket: Error out when creating 0-sized side data
This commit is a noop, see 5a633ec2dd
AV_PKT_DATA_METADATA_UPDATE can be zero sized in order to clear old
meta.
Note: maybe we could add a start or end marker.
Merged-by: Clément Bœsch <u@pkh.me>
