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7040 Commits

Author SHA1 Message Date
Paul B Mahol
41ebbae9dd avfilter/vf_extractplanes: add support for extracting planes with 14 depth 
Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2018-05-05 21:35:31 +02:00
Paul B Mahol
20a3c4f606 avfilter: forward status back in some filters that missed it 
Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2018-05-05 21:32:33 +02:00
Paul B Mahol
ac86011b1f avfilter/af_amerge: port to activate API 
Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2018-05-05 21:32:33 +02:00
Paul B Mahol
0f4ca420bc avfilter/vf_colorchannelmixer: add planar rgb support 
Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2018-05-05 17:37:50 +02:00
Paul B Mahol
931e2c4541 avfilter/vf_colorchannelmixer: refactor code 
Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2018-05-05 17:37:50 +02:00
Paul B Mahol
2017b4b1c2 avfilter/vf_colorbalance: fix off by one overflow 
Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2018-05-05 17:37:50 +02:00
Paul B Mahol
d1e1872418 avfilter/vf_colorchannelmixer: add slice threading 
Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2018-05-05 17:37:50 +02:00
Paul B Mahol
0ef7a45197 avfilter/vf_colorbalance: add slice threading 
Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2018-05-05 12:50:16 +02:00
Paul B Mahol
db8777cef0 avfilter/vf_colorbalance: add planar rgb support 
Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2018-05-05 12:23:07 +02:00
Paul B Mahol
4cd4aa08a6 avfilter/vf_convolution: use already available dstride 
Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2018-05-05 11:01:02 +02:00
Paul B Mahol
c2fd69ba62 avfilter/vf_colorbalance: add 16bit depth support 
Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2018-05-05 00:36:32 +02:00
Kevin Wheatley
51775bc1cd avfilter/vf_libvmaf: the libvmaf filter tried to join on an invalid thread id 
The thread id was invalid because it was not initialised
during the calls to init_complex_filtergraph.

This adds a flag to check for initialisation before trying to
peform the join.

Reviewed-by: Ronald S. Bultje <rsbultje@gmail.com>
Signed-off-by: Kevin Wheatley <kevin.j.wheatley@gmail.com>
 2018-05-04 18:29:53 -03:00
Paul B Mahol
244d4ba0da avfilter/vf_lut3d: fix typo 
Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2018-05-04 23:17:53 +02:00
Paul B Mahol
20c83be27a avfilter/vf_edgedetect: add more formats support to canny mode 
Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2018-05-04 21:37:33 +02:00
Paul B Mahol
0bcc66571a avfilter/vf_edgedetect: add planes option 
Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2018-05-04 21:37:33 +02:00
Paul B Mahol
d122c8b102 avfilter/vf_edgedetect: add canny mode 
Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2018-05-04 21:34:49 +02:00
Paul B Mahol
aba39cc1f1 avfilter/vf_convolution: add column/vertical mode 
Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2018-05-04 21:32:26 +02:00
Paul B Mahol
901dc11bb6 avfilter/vf_lut3d: add planar rgb support 
Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2018-05-04 21:27:48 +02:00
Sergey Lavrushkin
9479955c62 Adds SRCNN filter. 
Signed-off-by: Pedro Arthur <bygrandao@gmail.com>
 2018-05-04 14:24:56 +00:00
Paul B Mahol
4bad76b6e9 avfilter/vf_amplify: add more options for finer filtering 
Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2018-05-04 14:41:38 +02:00
Paul B Mahol
f43fd68f28 avfilter/drawutils: add support for full range 
Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2018-05-03 21:43:57 +02:00
Paul B Mahol
943f7902e6 avfilter/vf_neighbor: add >8 depth suppport 
Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2018-05-03 12:48:47 +02:00
Paul B Mahol
c8c2fb0977 avfilter/vf_convolution: unbreak roberts filter 
Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2018-05-03 11:29:51 +02:00
Paul B Mahol
3a96534ed9 avfilter/vf_convolution: add horizontal/row mode 
Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2018-05-03 10:55:10 +02:00
Paul B Mahol
0f0d468fbc avfilter/vf_overlay: exclude nv12/nv21 formats from x86 asm check 
They are yet to be supported,

Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2018-05-03 09:22:28 +02:00
Paul B Mahol
ab1114a0f5 avfilter/vf_convolution: rewrite so it doesn't use temp buffers 
Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2018-05-03 00:09:01 +02:00
Paul B Mahol
6d7c63588c avfilter/vf_overlay: add x86 SIMD 
Specifically for yuv444, yuv422, yuv420 format when main stream has no alpha, and alpha
is straight.

Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2018-05-02 23:58:21 +02:00
Paul B Mahol
d176497cec avfilter/af_biquads: add slice threading 
Helps with multi-channels audio. Otherwise use threads=1.

Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2018-05-01 16:00:19 +02:00
Paul B Mahol
2308a3c7e3 avfilter/af_biquads: change clipping detection from global to channel 
Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2018-05-01 15:26:20 +02:00
Paul B Mahol
5bfc433a6e avfilter/vf_neighbor: add slice threading 
Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2018-05-01 15:05:43 +02:00
Paul B Mahol
ddf844d17c avfilter/vf_neighbor: simplify code little 
Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2018-05-01 14:50:48 +02:00
Paul B Mahol
273edb2fe4 avfilter/vf_neighbor: rewrite without using temp memory 
Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2018-05-01 13:12:50 +02:00
Marton Balint
7033654f7f Use AV_PIX_FMT_FLAG_ALPHA for detecting transparency where nb_components was used 
Temporarily keep the old method for ffmpeg_filters.c choose_pix_fmt and
avfiltergraph.c pick_format() until a paletted pixel format without alpha is
introduced.

Signed-off-by: Marton Balint <cus@passwd.hu>
 2018-04-30 21:51:31 +02:00
Paul B Mahol
da55304caf avfilter/vf_mix: initialize last to silence possible warning 
Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2018-04-30 20:45:05 +02:00
Paul B Mahol
c0f2abcc8d avfilter/vf_mix: make setting weights more user friendly 
Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2018-04-29 19:27:15 +02:00
Paul B Mahol
ad16423704 avfilter/vf_fieldmatch: add support for >8 bit depth in ppsrc 
Also fix leaks while here.

Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2018-04-29 15:01:32 +02:00
Paul B Mahol
a5b2d85f18 avfilter/vf_fieldmatch: switch to activate 
Unbreaks ppsrc filtering.

Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2018-04-29 15:01:32 +02:00
Paul B Mahol
889d858491 avfilter: add amplify filter 
Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2018-04-29 13:24:50 +02:00
Paul B Mahol
70d25b89db avfilter/vf_overlay: use slice_end in alpha_composite() 
Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2018-04-29 10:02:57 +02:00
Paul B Mahol
29fd44adf1 avfilter/vf_fieldmatch: use correct subsamplings for y0a, y1a and startx 
Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2018-04-28 22:49:09 +02:00
Paul B Mahol
d54014d157 avfilter/vf_overlay: add slice threading 
Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2018-04-28 18:54:12 +02:00
Paul B Mahol
4f484edaa7 avfilter/vf_convolution: make rdiv set to 0 more useful 
Use 0 for signaling that rdiv will be calculated from sum
of all matrix elements.

Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2018-04-28 11:25:43 +02:00
Paul B Mahol
b473e76876 avfilter/vf_mix: use correct linesizes 
Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2018-04-27 19:15:55 +02:00
Paul B Mahol
309fce63d8 avfilter/vf_shuffleplanes: add support for timeline 
Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2018-04-27 17:18:22 +02:00
Paul B Mahol
2d7ba3a96f avfilter/vf_premultiply: add slice threading 
Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2018-04-27 12:25:32 +02:00
Paul B Mahol
e0e75f93b9 avfilter/vf_maskedclamp: silence warning 
Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2018-04-27 11:36:34 +02:00
Paul B Mahol
9faec78b14 avfilter/vf_mix: add slice threading 
Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2018-04-27 11:32:50 +02:00
Paul B Mahol
6a955750d6 avfilter/vf_maskedclamp: add slice threading 
Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2018-04-27 00:08:04 +02:00
Paul B Mahol
356a33b20a avfilter/vf_atadenoise: do not abort if user specified invalid size 
Update documentation with new size default.

Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2018-04-26 22:25:10 +02:00
Paul B Mahol
330215830e avfilter/vf_mix: clip output pixel values 
Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2018-04-26 16:44:15 +02:00
Paul B Mahol
a5172dcab6 avfilter/vf_mix: add scale option 
Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2018-04-26 16:44:15 +02:00
Paul B Mahol
161e006cc0 avfilter: add tmix filter 
Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2018-04-26 16:44:15 +02:00
Paul B Mahol
a12899ad9b avfiler/vf_mix: fix crash with >8 bit depth 
Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2018-04-25 14:08:21 +02:00
Vasile Toncu
9c01cdb94e avfilter/vf_interlace: remove duplicate code with same funcionality 2018-04-23 23:48:30 +02:00
Ruiling Song
d865783b6c lavf/qsv: clone the frame which may be managed by framework 
For filters based on framesync, the input frame was managed
by framesync, so we should not directly keep and destroy it,
instead we make a clone of it here, or else double-free will occur.
But for other filters not based on framesync, we still need to
free the input frame inside filter_frame.

Signed-off-by: Ruiling Song <ruiling.song@intel.com>
 2018-04-21 19:00:43 +01:00
Ruiling Song
f3341a0452 lavf: make overlay_qsv work based on framesync 
The existing version which was cherry-picked from Libav does not work
with FFmpeg framework, because ff_request_frame() was totally
different between Libav (recursive) and FFmpeg (non-recursive).
The existing overlay_qsv implementation depends on the recursive version
of ff_request_frame to trigger immediate call to request_frame() on input pad.
But this has been removed in FFmpeg since "lavfi: make request_frame() non-recursive."
Now that we have handy framesync support in FFmpeg, so I make it work
based on framesync. Some other fixing which is also needed to make
overlay_qsv work are put in a separate patch.

Signed-off-by: Ruiling Song <ruiling.song@intel.com>
 2018-04-21 19:00:43 +01:00
Paul B Mahol
21da248b5f avfilter: add deblock filter 
Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2018-04-21 11:34:49 +02:00
Paul B Mahol
396c019795 avfilter/avf_avectorscope: disable mirroring 
Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2018-04-18 18:14:35 +02:00
Paul B Mahol
2fc12f4971 avfilter: add lowshelf and highshelf filters 
These are old bass and treble filters.
Make bass and treble filters better at boosting.

Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2018-04-17 12:40:27 +02:00
Paul B Mahol
6e05a11e89 avfilter/af_afir: make max IR length configurable 
Also increase max allowed dry/wet value.

Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2018-04-16 19:11:35 +02:00
Paul B Mahol
9cf0079638 avfilter/af_headphone: switch to activate 
Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2018-04-16 18:29:34 +02:00
Michael Niedermayer
3c1ecb057d Bump minor versions after release/4.0 branching 
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2018-04-16 12:35:12 +02:00
Michael Niedermayer
7e3a070d9a Bump minor versions for branching release/4.0 
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2018-04-16 12:35:12 +02:00
Martin Vignali
56315df32c avfilter/showvolume : cosmetic move bracket after func declaration to a new line 2018-04-16 11:35:07 +02:00
Martin Vignali
fd10a6e2f2 avfilter/showvolume : add persistent max display 
draw a color line for the max level in the given duration
 2018-04-16 11:35:03 +02:00
Martin Vignali
cb2f52b6a7 avfilter/showvolume : add display scale option 
linear (current behaviour) or log display (more close to classic audio meter)
 2018-04-16 11:34:59 +02:00
Paul B Mahol
e1c8bd2389 avfilter/af_headphone: fix type=time with hrir=multich 
Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2018-04-16 09:31:11 +02:00
Paul B Mahol
3e003a985f avfilter/af_headphone: add single hrir multichannel stream mode 
Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2018-04-15 16:08:28 +02:00
Paul B Mahol
a56580b117 avfilter/af_headphone: fix memory leak and overread 
Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2018-04-14 19:42:16 +02:00
Paul B Mahol
8daca7697b avfilter/af_headphone: do not output invalid samples when flushing 
Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2018-04-14 18:38:54 +02:00
Paul B Mahol
01170e9db0 avfilter/af_headphone: fix flushing 
Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2018-04-14 17:51:26 +02:00
Paul B Mahol
2b0f821f51 avfilter/af_headphone: improve performance and reduce latency 
Remove not needed code.

Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2018-04-14 17:28:26 +02:00
James Almer
f790410b6b Merge commit 'cca5e4f040971db6de0bfe6968f00c021d8a9c42' 
* commit 'cca5e4f040971db6de0bfe6968f00c021d8a9c42':
  qsv: adding Multi Frame Encode support

Merged-by: James Almer <jamrial@gmail.com>
 2018-04-13 20:34:23 -03:00
James Almer
ae7e66fb4b Merge commit '29a8ed766354c45c9be4b8512c5b2eb25a450cdc' 
* commit '29a8ed766354c45c9be4b8512c5b2eb25a450cdc':
  lavf/qsvvpp: bypass vpp if not needed.

Merged-by: James Almer <jamrial@gmail.com>
 2018-04-13 19:58:47 -03:00
Paul B Mahol
9e40632668 avfilter: add vfrdet filter 
Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2018-04-13 08:41:51 +02:00
Maxym Dmytrychenko
cca5e4f040 qsv: adding Multi Frame Encode support 
Starting from API 1.25 helps to improve performance of the simultaneous
encode, 1:N scenario, like:

./avconv  -y -hwaccel qsv -c:v h264_qsv -r 30000/1001 -i
~/bbb_sunflower_1080p_60fps_normal.mp4  -vframes 600 -an \
    -filter_complex "split=2[s1][s2]; [s1]scale_qsv=1280:720[o1];
[s2]scale_qsv=960:540[o2]" \
    -map [o1] -c:v h264_qsv -b:v 3200k -minrate 3200k -maxrate 3200k -f
rawvideo /tmp/3200a.264 \
    -map [o2] -c:v h264_qsv -b:v 1750k -minrate 1750k -maxrate 1750k -f
rawvideo /tmp/1750a.264

Signed-off-by: Maxym Dmytrychenko <maxim.d33@gmail.com>
 2018-04-08 20:47:59 +02:00
Zhong Li
29a8ed7663 lavf/qsvvpp: bypass vpp if not needed. 
Currently vpp pipeline is always created, even for the unnecessary
cases such as setting the option "vpp_qsv=w=1280:h=720" for an input
with native resolution 1280x720. Thus introduces unnecessary performance
dropping, so bypass vpp if not needed.

Signed-off-by: Zhong Li <zhong.li@intel.com>
Signed-off-by: Maxym Dmytrychenko <maxim.d33@gmail.com>
 2018-04-08 20:47:59 +02:00
Josh de Kock
92fe0bf1e8 lavfi,lavd: add gitignore for generated static component lists 
Signed-off-by: Josh de Kock <josh@itanimul.li>
 2018-04-05 22:08:53 +01:00
Martin Vignali
f3df42e81d avfilter/x86/vf_blend : add SIMD for 16 bit version of 
grainextract
grainmerge
average
extremity
negation
 2018-04-05 21:46:16 +02:00
Martin Vignali
8eb0bb1108 avfilter/x86/vf_blend : reorganize DIFFERENCE macro to reduce line duplication between 8bit and 16 bit version 2018-04-05 21:46:11 +02:00
wm4
d6fc031caf avutil/pixdesc: deprecate AV_PIX_FMT_FLAG_PSEUDOPAL 
PSEUDOPAL pixel formats are not paletted, but carried a palette with the
intention of allowing code to treat unpaletted formats as paletted. The
palette simply mapped the byte values to the resulting RGB values,
making it some sort of LUT for RGB conversion.

It was used for 1 byte formats only: RGB4_BYTE, BGR4_BYTE, RGB8, BGR8,
GRAY8. The first 4 are awfully obscure, used only by some ancient bitmap
formats. The last one, GRAY8, is more common, but its treatment is
grossly incorrect. It considers full range GRAY8 only, so GRAY8 coming
from typical Y video planes was not mapped to the correct RGB values.
This cannot be fixed, because AVFrame.color_range can be freely changed
at runtime, and there is nothing to ensure the pseudo palette is
updated.

Also, nothing actually used the PSEUDOPAL palette data, except xwdenc
(trivially changed in the previous commit). All other code had to treat
it as a special case, just to ignore or to propagate palette data.

In conclusion, this was just a very strange old mechnaism that has no
real justification to exist anymore (although it may have been nice and
useful in the past). Now it's an artifact that makes the API harder to
use: API users who allocate their own pixel data have to be aware that
they need to allocate the palette, or FFmpeg will crash on them in
_some_ situations. On top of this, there was no API to allocate the
pseuo palette outside of av_frame_get_buffer().

This patch not only deprecates AV_PIX_FMT_FLAG_PSEUDOPAL, but also makes
the pseudo palette optional. Nothing accesses it anymore, though if it's
set, it's propagated. It's still allocated and initialized for
compatibility with API users that rely on this feature. But new API
users do not need to allocate it. This was an explicit goal of this
patch.

Most changes replace AV_PIX_FMT_FLAG_PSEUDOPAL with FF_PSEUDOPAL. I
first tried #ifdefing all code, but it was a mess. The FF_PSEUDOPAL
macro reduces the mess, and still allows defining FF_API_PSEUDOPAL to 0.

Passes FATE with FF_API_PSEUDOPAL enabled and disabled. In addition,
FATE passes with FF_API_PSEUDOPAL set to 1, but with allocation
functions manually changed to not allocating a palette.
 2018-04-03 17:53:00 +02:00
Josh de Kock
89029bd2c7 lav*,tests: remove several register_all calls 
avdevice_register_all() is still required to register devices into
lavf (this is required due to lavd being somewhat of a hack).

Signed-off-by: Josh de Kock <josh@itanimul.li>
 2018-04-02 03:26:22 +01:00
James Almer
f1805d160d avfilter: bump version for the latest API change 
And fix the entry in doc/APIchanges

Signed-off-by: James Almer <jamrial@gmail.com>
 2018-04-01 23:22:18 -03:00
Paul B Mahol
8dff6c2844 avfilter/af_amix: add weights option 
Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2018-04-01 20:36:35 +02:00
Martin Vignali
78b6887da3 avfilter/showvolume : indent after prev commit and add comment 2018-04-01 15:40:05 +02:00
Martin Vignali
e4cfb2c669 avfilter/showvolume : move width test for draw volume to the start of the loop 2018-04-01 15:40:01 +02:00
Martin Vignali
4152413dde avfilter/showvolume : move clear picture part to a func 
and use it if fade == 0.
 2018-04-01 15:39:57 +02:00
enctac
be502ec6cd vf_libvmaf: Fix memory leak 
Fixes ticket #6967
 2018-03-31 20:58:09 -07:00
Michael Niedermayer
35eeff30ca avfilter/vf_signature: use av_strlcpy() 
Fixes: out of array access

Found-by: Kira <kira_cxy@foxmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2018-04-01 02:58:51 +02:00
Josh de Kock
8f1382f80e lavfi: add new iteration API 
Signed-off-by: Josh de Kock <josh@itanimul.li>
 2018-03-31 23:26:30 +01:00
Paul B Mahol
0c25caa470 avfilter/avf_showvolume: let fade be also exactly 0 
Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2018-03-31 09:27:57 +02:00
Martin Vignali
328df2f712 avfilter/showvolume : indent after prev commit 2018-03-31 09:11:43 +02:00
Martin Vignali
25b22666a3 avfilter/showvolume : calculate fade only if fade < 1. 2018-03-31 09:11:39 +02:00
Martin Vignali
34304677c0 avfilter/showvolume : add comment for orientation condition 2018-03-31 09:11:34 +02:00
Nicolas Gaullier
759381d96b lavfi/silencedetect: Fix missing log at eos 
Fixes ticket #6968
 2018-03-29 15:45:27 +02:00
Nicolas Gaullier
5170ab20e1 lavfi/silencedetect: Fix silence_end accuracy 2018-03-29 15:45:24 +02:00
Nicolas Gaullier
56b2731aae lavfi/silencedetect: Fix silence_start accuracy 2018-03-29 15:45:20 +02:00
Nicolas Gaullier
3deb17f9fb lavfi/silencedetect: Fix when silence_start=0 
0 is a valid value for silence_start
 2018-03-29 15:44:47 +02:00
Nicolas Gaullier
95e47654bc lavfi/silencedetect: Add mono mode 
In mono mode, silence is detected in any single channel instead of all
of them simultaneously
 2018-03-29 15:40:58 +02:00
Marton Balint
084ef7d7d5 avfilter/af_pan: reject expressions referencing the same channel multiple times 
Fixes parsing of expressions like c0=c0+c0 or c0=c0|c0=c1.  Previously no
error was thrown and for input channels, only the last gain factor was used,
for output channels the source channel gains were combined.

Signed-off-by: Marton Balint <cus@passwd.hu>
 2018-03-29 00:07:39 +02:00