vp9: read reserved bit in RGB header.

vp9: clip intermediates in dequant calculations.

This makes values consistent with libvpx.

vp9: fix segmentation map retention if segmentation is turned off.

vp9: use resetctx in the same way as libvpx.

vp9: fix indentation.

vp9: deal with the case where update_map=0 but we're key/intraonly.

vp9: reset segmentation information on context reset.

avcodec/g2meet: Also clear tile dimensions on header_fail

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

avcodec/g2meet: Fix potential overflow in tile dimensions check

Fixes CID1322351

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

avcodec/eatgq: Check init_get_bits8() for failure

Fixes CID1322315

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

avcodec/adpcm: Check init_get_bits8() for failure

Fixes CID1322317

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

ffmpeg: Drop redundant ist check

stream copy always has a input stream, it cannot use complex video/audio filters with unambigous input
Fixes CID1322348

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

doc/examples/http_multiclient: Fix occured typo

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

avcodec/libfdk-aacdec: Remove unused variable

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

avcodec/hevc_parser: Check init_get_bits8() for failure

Fixes: CID1322322
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

avcodec/ira288: Check init_get_bits8() for failure

Fixes: CID1322321
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

avcodec/smacker: Check init_get_bits8() for failure

Fixes: CID1322314
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

avcodec/sonic: Check init_get_bits8() for failure

Fixes: CID1322310
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

avcodec/svq1dec: Check init_get_bits8() for failure

Fixes: CID1322313
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

avcodec/tta: Check init_get_bits8() for failure

Fixes: CID1322319
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

avcodec/vp3: Check init_get_bits8() for failure

Fixes CID1322316

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

avfilter/af_channelmap: Reorder operations to avoid memleak

Fixes CID1322346
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

avfilter/af_sidechaincompress: Also assert that i < 2

This should help static analyzers (CID1322339)

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

avfilter/vf_atadenoise: Check for ff_get_video_buffer() failure

Fixes CID1322338

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

avfilter/vf_histogram: Fix order of operations with flags

Fixes CID1322325

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

avcodec/gsmdec_template: avoid undefined negative left shifts

Fixes: unknown_unknown_338_824_cov_1045285351_sample-gsm-8000.mov
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

avformat/mov: Change the type of the r/g/b variables

Fixes integer overflow
Fixes: unknown_unknown_31b_795_cov_1818643045_raybauduc.mov
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

lavf/http: Remove superfluous parenthesis.

Signed-off-by: Stephan Holljes <klaxa1337@googlemail.com>
Reviewed-by: Ganesh Ajjanagadde <gajjanag@mit.edu>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

avfilter/avf_showwaves: Check max_samples

Fixes potential division by zero
Fixes: CID1292295
Reviewed-by: Ganesh Ajjanagadde <gajjanag@mit.edu>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

lavf/http: Fix incorrectly placed parenthesis.

The assignment had incorrectly placed parentheses which resulted in ret
always being > 0.

Reviewed-by: wm4 <nfxjfg@googlemail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

avfilter/af_dynaudnorm: Fix typo in assert

Fixes: CID1322303
Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

avfilter/avf_showfreqs: Use floating point division in WFUNC_BHANN

Fixes: CID1322365
Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

avformat/concatdec: Check file variable before dereferencing

Fixes CID1322328

Reviewed-by: Ganesh Ajjanagadde <gajjanag@mit.edu>
Reviewed-by: Nicolas George <george@nsup.org>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

AAC: MIPS: Add missing codebooks in quantize funcs

Add entries on the quantize function tables for the missing
codebooks (which all behave like ZERO)

AAC: Increase fuzziness of fate-aac tests

Needed to make them pass in mips

doc: Explain how to use the fps and the fieldmatch filter together.

Fixes ticket #3968.

avformat/file: Fix copy and paste error

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

avfilter/vf_sab: use the name 's' for the pointer to the private context

Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>

avcodec/fraps: use init_get_bits8()

Signed-off-by: Paul B Mahol <onemda@gmail.com>

avformat/hlsenc: Fix memleak of path

Fixes: CID1322343
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

avformat/hlsenc: Initialize vtt_oc to help static analyzers

This is also more robust in case it ever is used

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

avformat/latmenc: Add assert to avoid coverity warning

Fixes CID1322323

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

avfilter/vf_drawgraph: add rscroll slide mode

Signed-off-by: Paul B Mahol <onemda@gmail.com>

avcodec/vorbisdec: use init_get_bits8()

Signed-off-by: Paul B Mahol <onemda@gmail.com>

avfilter/vf_vectorscope: constify more variables

Signed-off-by: Paul B Mahol <onemda@gmail.com>

avfilter/vf_vectorscope: support more formats for color4 mode in common case

Signed-off-by: Paul B Mahol <onemda@gmail.com>

avfilter/vf_elbg: make it possible to output to pal8 pixel format

Signed-off-by: Paul B Mahol <onemda@gmail.com>

avformat/swfdec: Check return value of init_get_bits8()

Fixes: CID1322320
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

swresample/swresample: Fix integer overflow in seed calculation

Fixes CID1322333

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

avformat/mov: Fix integer overflow in FFABS

Fixes: unknown_unknown_19e_414_cov_764838672_bellhamlam.mov
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

avutil/common: Add FFNABS()

This macro avoids the undefined corner case with the *_MIN values

Previous version Reviewed-by: Ganesh Ajjanagadde <gajjanag@mit.edu>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

avformat/dump: Fix integer overflow in aspect ratio calculation

Fixes: unknown_unknown_19e_414_cov_764838672_bellhamlam.mov
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

avutil/common: Document FFABS() corner case

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

lavf: add V as a video stream specifier which is not an attached picture

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

avcodec/mpeg12dec: Fix integer overflow

Fixes: signal_sigabrt_7ffff6ac8cc9_686_cov_1897408623_microsoft_new_way_to_shove_mpeg2_in_asf.dvr_ms
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

avcodec/mpegvideo: change bit_rate to 64bit

32bit is not sufficient for all cases

Fixes: signal_sigabrt_7ffff6ac8cc9_686_cov_1897408623_microsoft_new_way_to_shove_mpeg2_in_asf.dvr_ms
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

avcodec/mpegvideo_parser: Fix integer overflow

Fixes: signal_sigabrt_7ffff6ac8cc9_686_cov_1897408623_microsoft_new_way_to_shove_mpeg2_in_asf.dvr_ms
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

avcodec/truemotion1: Fix undefined behavior (left shift of negative value)

Fixes: asan_heap-oob_26f6853_862_cov_585961513_sonic3dblast_intro-partial.avi
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

avcodec: loongson optimize mpeg2 dct unquantize intra and denoise dct

Change-Id: I2f391ae912a079fb32f0703841dca86358aac72a
Signed-off-by: ZhouXiaoyong <zhouxiaoyong@loongson.cn>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

lavfi/colormatrix: Add a bt601 alias

Matches what av_get_colorspace_name() and av_color_space_name() report.

Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

ffmpeg: Improve help text for -target.

Fixes ticket #1057.

avcodec/mips/aaccoder_mips: disable optimizatios which break fate-aac-pns-encode

These should be re enabled once the issue is fixed

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

fate: increase fuzziness for the AAC encoder prediction test

Fails on x86_64 using ICC 13.1.

Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>

fate: add fuzziness to the AAC Encode prediction test

Fails on ppc64 architecture under Ubuntu.

Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>

fate: update AAC encoder tests

TNS had both IS and PNS switched on when it makes more sense
to have them both off.

Prediction had a redundant argument.

Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>

aacenc: reorder coding tools

This commit reorders the coding tools such that they're doing what
the decoder does in reverse order. The very first thing the decoder
does is to decode M/S stereo if that's signalled, then prediction,
IS, and finally TNS and PNS in another function.
adjust_frame_information()'s application of IS and M/S was taken
out into two separate functions since prediction doesn't expect
to get the raw coefficients but rathe the coefficients at that
part of the encoding process.

The results show a much better PSNR when any combination of
Intensity Stereo, Mid/Side stereo and Prediction is used, which
is a sign of an increased encoder efficiency as well as the fact
that the decoder gets what it expects.

Otherwise, with only IS, PNS or prediction there are neither
regressions nor improvements except in the case of IS, which
now by itself (or with PNS) is less prone to artifacts. Enabling
M/S (using stereo_mode) as well will also reduce stereo artifacts
induced by IS, so in the very near future M/S may be enabled
by default.

Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>

avformat/hlsenc: add a use_localtime option to expand the segment filename with localtime

test examples:

./ffmpeg -re -i ~/Movies/objectC/facebook.mp4 -v verbose -c copy -f hls -hls_segment_filename test-%s.ts -use_localtime 1 -bsf:v h264_mp4toannexb aaa.m3u8

[StevenLiu@localhost ffmpeg]$ cat aaa.m3u8;ll test-*.ts
test-1441052221.ts
test-1441052231.ts
test-1441052235.ts
test-1441052243.ts
test-1441052249.ts
-rw-r--r--  1 StevenLiu  staff  1310736  9  1 04:15 test-1441052131.ts
-rw-r--r--  1 StevenLiu  staff   495192  9  1 04:15 test-1441052141.ts
-rw-r--r--  1 StevenLiu  staff  1310736  9  1 04:17 test-1441052212.ts
-rw-r--r--  1 StevenLiu  staff  1067840  9  1 04:17 test-1441052221.ts
-rw-r--r--  1 StevenLiu  staff   235564  9  1 04:17 test-1441052231.ts
-rw-r--r--  1 StevenLiu  staff  1187220  9  1 04:17 test-1441052235.ts
-rw-r--r--  1 StevenLiu  staff   694848  9  1 04:17 test-1441052243.ts
-rw-r--r--  1 StevenLiu  staff   526588  9  1 04:17 test-1441052249.ts
[StevenLiu@localhost ffmpeg]$

./ffmpeg -re -i ~/Movies/objectC/facebook.mp4 -v verbose -c copy -f hls -hls_segment_filename test-%s.ts -use_localtime 1 -bsf:v h264_mp4toannexb aaa.m3u8

[StevenLiu@localhost ffmpeg]$ cat aaa.m3u8;ll aaa-*.ts
aaa-1441052417.ts
aaa-1441052427.ts
aaa-1441052437.ts
aaa-1441052440.ts
aaa-1441052449.ts
-rw-r--r--  1 StevenLiu  staff  1310736  9  1 04:19 aaa-1441052382.ts
-rw-r--r--  1 StevenLiu  staff   277300  9  1 04:19 aaa-1441052392.ts
-rw-r--r--  1 StevenLiu  staff  1310736  9  1 04:20 aaa-1441052417.ts
-rw-r--r--  1 StevenLiu  staff  1067840  9  1 04:20 aaa-1441052427.ts
-rw-r--r--  1 StevenLiu  staff   235564  9  1 04:20 aaa-1441052437.ts
-rw-r--r--  1 StevenLiu  staff  1187220  9  1 04:20 aaa-1441052440.ts
-rw-r--r--  1 StevenLiu  staff   338776  9  1 04:20 aaa-1441052449.ts
[StevenLiu@localhost ffmpeg]$

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

avcodec/hevc_parser: fix split function of parser

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

avcodec/ffv1dec: Print CRCs at picture debug level

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

avcodec/ffv1dec: Check that there is enough space for the CRC in the global header

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

avcodec/h264_slice: replace assert by normal error check

Fixes assertion failure
Fixes: c6075771557e4f3b7b74e63d2d24fb01/signal_sigabrt_7ffff6ac8cc9_133_cov_2853689970_CREDITS.FST
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

lavf/dv: Do not return EIO for every error (like EOF).

Fixes ticket #4818.

Reviewed-by: Ronald S. Bultje
Reviewed-by: Paul B Mahol

avfilter/vf_subtitles: allow setting fonts directory

This is mostly useful if libass was compiled with a font provider
other than fontconfig, but is still useful in that case.

Signed-off-by: Ricardo Constantino <wiiaboo@gmail.com>

avcodec/version: Minor version bump due to 5d12d7de2ce548a3c9f5c175a9d1c5bfbdbcbfa8

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

avformat/mxg: Use memmove()

Fixes undefined behavior
Fixes: 1700002963a49da13542e0726b7bb758/unknown_unknown_292_658_cov_2141972066_m1.mxg
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

mpegts: demux BluRay text subtitles

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

mpegts: fix demuxing PES private stream 2

PES header size is 6 bytes (00 00 01 bf XX XX), not 0.
BluRay text subtitles use private stream 2.

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

avfilter/vf_spp: use the name 's' for the pointer to the private context

Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>

rtmp: support the AMF_DATE tag

Instead of returning EINVAL, which can cause a stream to fail to load, this
allows the tag to be passed through to the flv demuxer, where it's summarily
ignored.

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

aacenc: disable bandtype modifying extensions when coder != twoloop

If the selected coder isn't twoloop, this commit temporarily
disables IS and PNS.
The problem is in the encode_window_bands_info() being confused
and setting invalid band_types for non-marked (normal) bands.

Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>

avfilter/vf_waveform: support envelope for all filters

Signed-off-by: Paul B Mahol <onemda@gmail.com>

avfilter/vf_waveform: simplify memory allocations

Signed-off-by: Paul B Mahol <onemda@gmail.com>

avfilter/vf_waveform: implement various filters

Signed-off-by: Paul B Mahol <onemda@gmail.com>

fate: adjust fuzz of AAC Encoder's TNS test

Have to adjust it again, this time because of --enable-small on
gcc 4.5 in Linaro.

Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>

lavf: Remove probesize32 and max_analyze_duration32 on version bump.

Add FF_API_PROBESIZE_32 to allow removing 32bit probesize and 32bit
max_analyze_duration after the next libavformat version bump.

lavfi/scale: Pass src_range and dst_range to libswscale.

Fixes ticket #4812.

fate: update AAC tests to the new defaults

IS and PNS increase quality a ton so as a result the PSNR changed.
Disable the extensions and keep the tests separate such that there
will be no red herrings if one test fails.

Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>

aacenc: Enable Intensity Stereo by default

Since the changes made a few week ago (which were done more than a
month ago) the quality and stability of intensity stereo has been
notably good. There were some requests and wishes to have in on by
default and therefore it has been enabled. Should any regressions
arise changes will be made to preferably keep it operating rather
than just disabling it by default again.

Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>

aacenc: Enable Perceptual Noise Substitution by default

It has been in the current encoder in its current implementation
for quite some time now, so enable it by default. Will increase
quality at all bitrates, especially at low ones.

Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>

fate: update AAC Encoder TNS test for the new changes

Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>

aacenc: reorder resetting of cpe->common_window

Purely a cosmetic change, most of the zeroing of encoder resources
should happen at the top of the main loop.

Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>

aacenc_tns: rework coefficient quantization and filter application

This commit reworks the TNS implementation to a hybrid between what
the specifications say, what the decoder does and what's the best
thing to do.

The filter application function was copied from the decoder and
modified such that it applies the inverse AR filter to the
coefficients. The LPC coefficients themselves are fed into the
same quantization expression that the specifications say should
be used however further processing is not done, instead they're
converted to the form that the decoder expects them to be in
and are sent off to the compute_lpc_coeffs function exactly the
way the decoder does. This function does all conversions and will
return the exact coefficients that the decoder will generate, which
are then applied to the coefficients.
Having the exact same coefficients on both the encoder and decoder
is a must since otherwise the entire sfb's over which the filter
is applied will be attenuated.

Despite this major rework, TNS might not work fine on some audio
types at very low bitrates (e.g. sub 90kbps) as it can attenuate
some coefficients too much. Users are advised to experiment with
TNS at higher bitrates if they wish to use this tool or simply
wait for the implementation to be improved.

Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>

aacenc: allocate a larger buffer for the TNS LPC context

Turns out autocorrelating more than 750 coefficients at once
will cause a segfault, despite there being enough space to
hold an entire frame of samples into the buffer.

Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>

lpc: add ff_lpc_calc_ref_coefs_f() function

This commit adds a function to get the reflection coefficients on
floating point samples. It's functionally identical to
ff_lpc_calc_ref_coefs() except it works on float samples and will
return the global prediction gain. The Welch window implementation
which is more optimized works only on int32_t samples so a slower
generic expression was used.

Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>

lpc: remove unused ff_lpc_calc_levinson() function

Not needed anymore, it was only used by the AAC TNS
encoder and was replaced with a more suitable function
in the following commit.

Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>

aacenctab: add tns_min_sfb[] to the encoder tables header

Needed for following commits. Contains the starting sfb for
every samplerate and window type.

Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>

aacenc: populate tns_max_bands

Needed for the following commits.

Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>

avcodec/truemotion1: Check for even width

Fixes out of array access
Fixes: 87196d8bbc633629fc9dd851fce73e70/asan_heap-oob_26f6853_862_cov_585961513_sonic3dblast_intro-partial.avi
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

avcodec/mpeg12dec: Set dimensions in mpeg1_decode_sequence() only in absence of errors

Fixes assertion failure
Fixes: 56dcafde14a8397161bb61a16c511179/signal_sigabrt_7ffff6ac8cc9_686_cov_1897408623_microsoft_new_way_to_shove_mpeg2_in_asf.dvr_ms
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

avcodec/movtextdec: Free ftab_temp

Fixes memleak
Fixes: efe937780e95574250dabe07151bdc23/unknown_unknown_351_849_cov_3187578556_shellymanne.mov
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>