This is now handled by the slice decoding function.
Signed-off-by: Rostislav Pehlivanov <rpehlivanov@obe.tv>

Signed-off-by: Rostislav Pehlivanov <rpehlivanov@obe.tv>

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>

Siginificantly improves the performance.
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>

Signed-off-by: Rostislav Pehlivanov <rpehlivanov@obe.tv>

Currently unused, to be used in the following commits.
Signed-off-by: Rostislav Pehlivanov <rpehlivanov@obe.tv>

Also fix a possible issue with the mpegaudio audiotoolbox decoders.
Fixes ticket #5703.

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-10.3Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: James Almer <jamrial@gmail.com>

This reverts commit 1df908f3. The expected
performance improvements are essentially non-existent.

checkasm --bench, 10k runs, for *_add_${bpc}_${sub_idct}_${opt}, shows
that it's about 1.65x as fast as the AVX version for the full IDCT, and
similar speedups for the sub-IDCTs:

nop: 24.6
vp9_inv_dct_dct_16x16_add_8_1_c: 6444.8
vp9_inv_dct_dct_16x16_add_8_1_sse2: 638.6
vp9_inv_dct_dct_16x16_add_8_1_ssse3: 484.4
vp9_inv_dct_dct_16x16_add_8_1_avx: 661.2
vp9_inv_dct_dct_16x16_add_8_1_avx2: 311.5
vp9_inv_dct_dct_16x16_add_8_2_c: 6665.7
vp9_inv_dct_dct_16x16_add_8_2_sse2: 646.9
vp9_inv_dct_dct_16x16_add_8_2_ssse3: 455.2
vp9_inv_dct_dct_16x16_add_8_2_avx: 521.9
vp9_inv_dct_dct_16x16_add_8_2_avx2: 304.3
vp9_inv_dct_dct_16x16_add_8_4_c: 7022.7
vp9_inv_dct_dct_16x16_add_8_4_sse2: 647.4
vp9_inv_dct_dct_16x16_add_8_4_ssse3: 467.1
vp9_inv_dct_dct_16x16_add_8_4_avx: 446.1
vp9_inv_dct_dct_16x16_add_8_4_avx2: 297.0
vp9_inv_dct_dct_16x16_add_8_8_c: 6800.4
vp9_inv_dct_dct_16x16_add_8_8_sse2: 598.6
vp9_inv_dct_dct_16x16_add_8_8_ssse3: 465.7
vp9_inv_dct_dct_16x16_add_8_8_avx: 440.9
vp9_inv_dct_dct_16x16_add_8_8_avx2: 290.2
vp9_inv_dct_dct_16x16_add_8_16_c: 6626.6
vp9_inv_dct_dct_16x16_add_8_16_sse2: 599.5
vp9_inv_dct_dct_16x16_add_8_16_ssse3: 475.0
vp9_inv_dct_dct_16x16_add_8_16_avx: 469.9
vp9_inv_dct_dct_16x16_add_8_16_avx2: 286.4

Fixes CID1361959
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

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>

Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Marton Balint <cus@passwd.hu>

Coverity fails to realize this
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>

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

This reverts commit cb8646af.

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.

This reverts commit c67aa7f2, reversing
changes made to 46bd0e8e.

The merge should have been a noop as the support was added in
601c2388

* commit '187d7197':
  h264: Support AV_PKT_DATA_NEW_EXTRADATA
Merged-by: Clément Bœsch <u@pkh.me>

* commit '75872d77':
  lavc: Document AV_PKT_DATA_NEW_EXTRADATA
Merged-by: Clément Bœsch <u@pkh.me>

* commit 'f1a9eee4':
  x86: Add missing movsxd for the int stride parameter
Merged-by: Clément Bœsch <u@pkh.me>

* commit 'a2ddfadc':
  avdevice: Ignore timefilter test program

This commit is a noop, /timefilter entry was added in the original merge
(5d48e4ea)
Merged-by: Clément Bœsch <u@pkh.me>

* commit 'd6c2c279':
  LICENSE: Fix silly typo

This commit is a noop, the typo disappeared when the whole paragraph was
reworked in 484aec4d.
Merged-by: Clément Bœsch <u@pkh.me>

* commit '84b2d3fb':
  h264: Drop unused function check_opcodes()
Merged-by: Clément Bœsch <u@pkh.me>

* commit '05a4bacb':
  avpacket: Error out when creating 0-sized side data

This commit is a noop, see 5a633ec2

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>

* commit 'bcc07e25':
  pixdesc: Use C99 array to list color properties names
Merged-by: Clément Bœsch <u@pkh.me>

* commit 'a833ff68':
  h264: Fix decoding delay for Intra only streams
Merged-by: Clément Bœsch <u@pkh.me>

* commit '90f469aa':
  lavc: add H.264 MVC profiles
Merged-by: Clément Bœsch <u@pkh.me>

* commit '61f168ae':
  h264: factor out setting the parameter sets for a frame

Michael's changes on top of the merge undo parts of the original diff
that are not factorization:

"The call point is left where it was before. Such a change should be in
a separate commit and has multiple issues, one being null pointer
dereferences the other is that some safety checks would become
conditional.

I tried to split the PPS init between the new and old functions
similarly to the SPS code."
Merged-by: Clément Bœsch <u@pkh.me>
Merged-by: Michael Niedermayer <michael@niedermayer.cc>

We know the maximum size of an AnnexB NAL, signaling it as the maximum
NAL size allows ff_h2645_extract_rbsp to determine the correct size.

Reading it from any other position would result in a wrong size being
read, instead fallback to the re-sync mechanic in the else clause.

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>