September 2019 - ffmpeg-user - lists.ffmpeg.org

FREE RAM DECREASES
by Nidheesh V 20 Sep '19

20 Sep '19

video data is comming to a fifo. The ffmpeg is made to take the fifo data and copy it to my sdcard when ffmpeg is used to copy the data,the free ram decreases tried using different versions of ffmpeg,but same issue ffmpeg -f h264 -i /tmp/file.h264 -c:a copy -c:v copy /tmp/sdcard/video.avi This command was used to perform the process ram free memory should not decrease as time goes. Is this a memory leak? how to fix this *With regards,NIDHEESH V**VVDN Technologies Pvt Ltd* Cell: +91 8129732556 -- _Disclaimer: _© 2019 VVDN Technologies Pvt. Ltd. This e-mail contains PRIVILEGED AND CONFIDENTIAL INFORMATION intended solely for the use of the addressee(s). If you are not the intended recipient, please notify the sender by e-mail and delete the original message. Further, you are not to copy, disclose, or distribute this e-mail or its contents to any other person and any such actions are unlawful.__

3 2

Intel kmsgrab VAAPI interop assertions
by Marton Balint 19 Sep '19

19 Sep '19

Hi, I made some tests with kmsgrab (I have used the vaapi interop) and it seems to me that sometimes if an app (e.g.: ffplay) is in fullscreen it does not capture a fully drawn framebuffer but the one which is being drawn to and which has not been presented to the user. Also sometimes the capture stops with errors like this: ffmpeg: ../intel/intel_bufmgr_gem.c:1409: drm_intel_gem_bo_unreference: Assertion `atomic_read(&bo_gem->refcount) > 0' failed. or like this: [AVHWFramesContext @ 0x556a74d116c0] Failed to create surface from DRM object: 18 (invalid parameter). Example command (using a 4k framebuffer). Tested on Ubuntu 18.04 with kernel from hwe (5.0). Also tried updating xorg/drm packages from 19.04, but it does not seem to make a difference. ffmpeg -vsync vfr -vaapi_device /dev/dri/renderD128 \ -y -f kmsgrab -framerate 50 -i none \ -vf 'hwmap=derive_device=vaapi,scale_vaapi=3840:2160:nv12' \ -codec:v mjpeg_vaapi -f image2 -update 1 -atomic_writing 1 "${OUTFILE}.jpg" Output: ffmpeg version 4.1.3-0ubuntu1 Copyright (c) 2000-2019 the FFmpeg developers built with gcc 8 (Ubuntu 8.3.0-6ubuntu1) configuration: --prefix=/usr --extra-version=0ubuntu1 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --arch=amd64 --enable-gpl --disable-stripping --enable-avresample --disable-filter=resample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libjack --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librsvg --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-lv2 --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libx264 --enable-shared libavutil 56. 22.100 / 56. 22.100 libavcodec 58. 35.100 / 58. 35.100 libavformat 58. 20.100 / 58. 20.100 libavdevice 58. 5.100 / 58. 5.100 libavfilter 7. 40.101 / 7. 40.101 libavresample 4. 0. 0 / 4. 0. 0 libswscale 5. 3.100 / 5. 3.100 libswresample 3. 3.100 / 3. 3.100 libpostproc 55. 3.100 / 55. 3.100 [kmsgrab @ 0x556135cefcc0] Using plane 30 to locate framebuffers. [kmsgrab @ 0x556135cefcc0] Template framebuffer is 143: 3840x2160 32bpp 24b depth. Input #0, kmsgrab, from 'none': Duration: N/A, start: 1568913476.535418, bitrate: N/A Stream #0:0: Video: wrapped_avframe, drm_prime, 3840x2160, 50 tbr, 1000k tbn, 1000k tbc Stream mapping: Stream #0:0 -> #0:0 (wrapped_avframe (native) -> mjpeg (mjpeg_vaapi)) Press [q] to stop, [?] for help Output #0, image2, to '/mnt/compliance/out.jpg': Metadata: encoder : Lavf58.20.100 Stream #0:0: Video: mjpeg (mjpeg_vaapi), vaapi_vld, 3840x2160, q=2-31, 50 fps, 50 tbn, 50 tbc Metadata: encoder : Lavc58.35.100 mjpeg_vaapi ffmpeg: ../intel/intel_bufmgr_gem.c:1409: drm_intel_gem_bo_unreference: Assertion `atomic_read(&bo_gem->refcount) > 0' failed. Aborted Until the app is in a window, everything seems to work. If I switch it to fullscreen, it will fail sooner or later. Happens with a 4.2 release as well. I used the lightweight nodm window manager for testing. Happens with ICEWM as well. Any ideas? Thanks, Marton

1 0

verifying losslessness after merging two mono tracks into single stereo track
by Kieran O'Leary 18 Sep '19

18 Sep '19

Hi, I have a video file that has two 24-bit PCM audio tracks which should just be one paired stereo track. After looking at the wiki, it seems that this is the best command? ------ This email has been scanned for spam and malware by The Email Laundry.

3 3

Batch extracting frames from multiple videos
by Joseph Zaki 17 Sep '19

17 Sep '19

Hi everyone, I'm new to ffmpeg and having some issues batching a process. I have several dozen videos that I need to extract images every 2 seconds from. I tried this script: for %%a in ("*.mp4") do ffmpeg -i %%a -vf fps=2 "%%~na.%%06d.png But kept getting an error: Output file is empty, nothing was encoded (check -ss / -t / -frames parameters if used) Can anyone point me in the right direction on how to fix this? Cheers, JZ

2 3

changes to ffmpeg to stop having to put an escape
by Julian Gardner 17 Sep '19

17 Sep '19

A few weeks ago I had a problem with some eval code and it was pointed out that i need to escape the ','. So here is a small patch that needs passing on to the devel guys to have a look at. All this does is to ignore the fixed tokens when inside parenthesis, so this works now -filter_complex '[0:v] scale=160:90 [out], [v:0][out] overlay=x=mod(10,2):y=20' patch is here diff --git a/libavutil/avstring.c b/libavutil/avstring.c index 4c068f5..e19db8f 100644 --- a/libavutil/avstring.c +++ b/libavutil/avstring.c @@ -150,14 +150,26 @@ char *av_get_token(const char **buf, const char *term) { char *out = av_malloc(strlen(*buf) + 1); char *ret = out, *end = out; + int p_count = 0; + const char *p = *buf; if (!out) return NULL; p += strspn(p, WHITESPACES); - while (*p && !strspn(p, term)) { + while (*p && (!strspn(p, term) || p_count)) { char c = *p++; - if (c == '\\' && *p) { + if (c == ')') { + if( p_count) { + p_count--; + } + *out++ = c; + } + else if (c == '(') { + p_count++; + *out++ = c; + } + else if (c == '\\' && *p) { *out++ = *p++; end = out; } else if (c == '\'') { -- BR Joolz

3 10

Data partitioning errors and more...
by Craig Lillard 17 Sep '19

17 Sep '19

Getting "Data partioning is not implemented" along with a number of other errors when encoding this MP4. Is it the video file or is it my settings? First time user of this mailing list so don't get mad at me. :) Here is a link to the report: https://www.codepile.net/pile/Nl2QOPa2 Thanks! Craig

3 3

Playback of mp4 file created by concatenating 9 mp4 files
by JD 13 Sep '19

13 Sep '19

The resulting movie will not play. To wit: $ ffplay Cremation_History.mp4 ffplay version 3.4.6 Copyright (c) 2003-2019 the FFmpeg developers built with gcc 4.8.5 (GCC) 20150623 (Red Hat 4.8.5-36) configuration: --prefix=/usr --bindir=/usr/bin --datadir=/usr/share/ffmpeg --docdir=/usr/share/doc/ffmpeg --incdir=/usr/include/ffmpeg --libdir=/usr/lib64 --mandir=/usr/share/man --arch=x86_64 --optflags='-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches -m64 -mtune=generic' --extra-ldflags='-Wl,-z,relro ' --extra-cflags=' ' --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libvo-amrwbenc --enable-version3 --enable-bzlib --disable-crystalhd --enable-fontconfig --enable-gcrypt --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libcdio --enable-libdrm --enable-indev=jack --enable-libfreetype --enable-libfribidi --enable-libgsm --enable-libmp3lame --enable-nvenc --enable-openal --enable-opencl --enable-opengl --enable-libopenjpeg --enable-libopus --disable-encoder=libopus --enable-libpulse --enable-librsvg --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libvorbis --enable-libv4l2 --enable-libvidstab --enable-libx264 --enable-libx265 --enable-libxvid --enable-libzvbi --enable-avfilter --enable-avresample --enable-postproc --enable-pthreads --disable-static --enable-shared --enable-gpl --disable-debug --disable-stripping --shlibdir=/usr/lib64 --enable-libmfx --enable-runtime-cpudetect libavutil 55. 78.100 / 55. 78.100 libavcodec 57.107.100 / 57.107.100 libavformat 57. 83.100 / 57. 83.100 libavdevice 57. 10.100 / 57. 10.100 libavfilter 6.107.100 / 6.107.100 libavresample 3. 7. 0 / 3. 7. 0 libswscale 4. 8.100 / 4. 8.100 libswresample 2. 9.100 / 2. 9.100 libpostproc 54. 7.100 / 54. 7.100 [mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f30cc000920] moov atom not found0/0 Cremation_History.mp4: Invalid data found when processing input ================================================= This is how the concatenation was done: $ /bin/ffmpeg -f concat -i flist -s 1920x1080 -vf scale=1920x1080,setdar=16/9,setdar=16/9 -b:a 320k -b:v 4000k Cremation_History.mp4 ffmpeg version 3.4.6 Copyright (c) 2000-2019 the FFmpeg developers built with gcc 4.8.5 (GCC) 20150623 (Red Hat 4.8.5-36) configuration: --prefix=/usr --bindir=/usr/bin --datadir=/usr/share/ffmpeg --docdir=/usr/share/doc/ffmpeg --incdir=/usr/include/ffmpeg --libdir=/usr/lib64 --mandir=/usr/share/man --arch=x86_64 --optflags='-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches -m64 -mtune=generic' --extra-ldflags='-Wl,-z,relro ' --extra-cflags=' ' --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libvo-amrwbenc --enable-version3 --enable-bzlib --disable-crystalhd --enable-fontconfig --enable-gcrypt --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libcdio --enable-libdrm --enable-indev=jack --enable-libfreetype --enable-libfribidi --enable-libgsm --enable-libmp3lame --enable-nvenc --enable-openal --enable-opencl --enable-opengl --enable-libopenjpeg --enable-libopus --disable-encoder=libopus --enable-libpulse --enable-librsvg --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libvorbis --enable-libv4l2 --enable-libvidstab --enable-libx264 --enable-libx265 --enable-libxvid --enable-libzvbi --enable-avfilter --enable-avresample --enable-postproc --enable-pthreads --disable-static --enable-shared --enable-gpl --disable-debug --disable-stripping --shlibdir=/usr/lib64 --enable-libmfx --enable-runtime-cpudetect libavutil 55. 78.100 / 55. 78.100 libavcodec 57.107.100 / 57.107.100 libavformat 57. 83.100 / 57. 83.100 libavdevice 57. 10.100 / 57. 10.100 libavfilter 6.107.100 / 6.107.100 libavresample 3. 7. 0 / 3. 7. 0 libswscale 4. 8.100 / 4. 8.100 libswresample 2. 9.100 / 2. 9.100 libpostproc 54. 7.100 / 54. 7.100 [mov,mp4,m4a,3gp,3g2,mj2 @ 0x1859a80] Auto-inserting h264_mp4toannexb bitstream filter Input #0, concat, from 'flist': Duration: N/A, start: 0.000000, bitrate: 402 kb/s Stream #0:0(und): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p(tv, bt709), 640x360 [SAR 1:1 DAR 16:9], 306 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc Metadata: creation_time : 2019-08-29T19:28:20.000000Z handler_name : Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 96 kb/s Metadata: creation_time : 2019-08-29T19:28:20.000000Z handler_name : File 'Cremation_History.mp4' already exists. Overwrite ? [y/N] y Stream mapping: Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264)) Stream #0:1 -> #0:1 (aac (native) -> aac (native)) Press [q] to stop, [?] for help [libx264 @ 0x1a67f00] using SAR=1/1 [libx264 @ 0x1a67f00] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.1 Cache64 [libx264 @ 0x1a67f00] profile High, level 4.0 [libx264 @ 0x1a67f00] 264 - core 148 r2795 aaa9aa8 - H.264/MPEG-4 AVC codec - Copyleft 2003-2017 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=3 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=abr mbtree=1 bitrate=4000 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00 Output #0, mp4, to 'Cremation_History.mp4': Metadata: encoder : Lavf57.83.100 Stream #0:0(und): Video: h264 (libx264) (avc1 / 0x31637661), yuv420p(progressive), 1920x1080 [SAR 1:1 DAR 16:9], q=-1--1, 4000 kb/s, 30 fps, 15360 tbn, 30 tbc Metadata: creation_time : handler_name : encoder : Lavc57.107.100 libx264 Side data: cpb: bitrate max/min/avg: 0/0/4000000 buffer size: 0 vbv_delay: -1 Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 320 kb/s Metadata: creation_time : handler_name : I encoder : Lavc57.107.100 aac

3 2

ffmpeg to stream an already h.264 encoded stream
by Verachten Bruno 13 Sep '19

13 Sep '19

Hi there, this is my first message on this list, so please bear with me. I have access to a h.264 encoder that will supply a few rtmp streams corresponding to the various HDMI inputs it has. It is supposed to use ffmpeg by the way (TBS2605). Anyway... I have a Linux machine, and my goal is to: - grab one of these streams, add audio coming from a USB sound card (FocusRite 2i4 2nd Gen), and stream that to YouTube while recording on the disk too. - grab two of these streams, compose them on top of a template, add audio (like in https://youtu.be/01nM2Shnyz0?t=1638) stream that to YouTube while recording on the disk too. For the time being, I have managed to stream to YouTube, but the YouTube platform is not happy with my stream quality, saying "The stream's current bitrate (1653.00 Kbps) is lower than the recommended bitrate. We recommend that you use a stream bitrate of 4500 Kbps.". The bitrate that is output by the encoder is supposed to be 4000Kbps. The ffmpeg command I have gives me around 2200/2400Kbps. So I guess I made a mess and decoded with my command the h.264 stream before encoding again... as the speed is around 0.962x, and the CPU is quite busy. I thought there was no need to decode/encode to add an audio stream (but I have no idea what I'm doing, as you had already guessed ;-) ). I recompiled the 4.2 ffmpeg release sources on this very machine. Here is the kind of output I get: ffmpeg version 4.2 Copyright (c) 2000-2019 the FFmpeg developers built with gcc 7 (Ubuntu 7.4.0-1ubuntu1~18.04.1) configuration: --enable-gpl --enable-version3 --disable-static --enable-shared --enable-small --enable-avisynth --enable-chromaprint --enable-frei0r --enable-gmp --enable-gnutls --enable-ladspa --enable-libaom --enable-libass --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libjack --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librsvg --enable-librubberband --enable-librtmp --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtesseract --enable-libtheora --enable-libtwolame --enable-libv4l2 --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxvid --enable-libxml2 --enable-libzmq --enable-libzvbi --enable-lv2 --enable-libmysofa --enable-openal --enable-opencl --enable-opengl --enable-libdrm --enable-nonfree --enable-libfdk-aac --enable-libbluray --extra-libs='-lnettle -lhogweed -lgmp' libavutil 56. 31.100 / 56. 31.100 libavcodec 58. 54.100 / 58. 54.100 libavformat 58. 29.100 / 58. 29.100 libavdevice 58. 8.100 / 58. 8.100 libavfilter 7. 57.100 / 7. 57.100 libswscale 5. 5.100 / 5. 5.100 libswresample 3. 5.100 / 3. 5.100 libpostproc 55. 5.100 / 55. 5.100 Input #0, flv, from 'rtmp://192.168.1.211:1935/live/stream0': Duration: N/A, start: 15024.271000, bitrate: N/A Stream #0:0: Video: h264, yuv420p(progressive), 1920x1080, 30 fps, 30 tbr, 1k tbn Stream #0:1: Audio: aac, 48000 Hz, stereo, fltp Guessed Channel Layout for Input Stream #1.0 : stereo Input #1, pulse, from 'default': Duration: N/A, start: 1568033472.683289, bitrate: 1536 kb/s Stream #1:0: Audio: pcm_s16le, 48000 Hz, stereo, s16, 1536 kb/s Stream mapping: Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264)) Stream #0:1 -> #0:1 (aac (native) -> mp3 (libmp3lame)) Press [q] to stop, [?] for help [libx264 @ 0x559c4df3e780] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2 [libx264 @ 0x559c4df3e780] profile High, level 4.0 [libx264 @ 0x559c4df3e780] 264 - core 152 r2854 e9a5903 - H.264/MPEG-4 AVC codec - Copyleft 2003-2017 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=6 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=60 keyint_min=6 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=3.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 vbv_maxrate=7000 vbv_bufsize=512 crf_max=0.0 nal_hrd=none filler=0 ip_ratio=1.40 aq=1:1.00 Output #0, flv, to 'rtmp://a.rtmp.youtube.com/live2/dh5g-r8tf-x5qy-cse8': Metadata: encoder : Lavf58.29.100 Stream #0:0: Video: h264 (libx264) ([7][0][0][0] / 0x0007), yuv420p, 1920x1080, q=-1--1, 5000 kb/s, 30 fps, 1k tbn, 30 tbc Metadata: encoder : Lavc58.54.100 libx264 Side data: cpb: bitrate max/min/avg: 7000000/0/5000000 buffer size: 512000 vbv_delay: -1 Stream #0:1: Audio: mp3 (libmp3lame) ([2][0][0][0] / 0x0002), 48000 Hz, stereo, fltp, 712 kb/s Metadata: encoder : Lavc58.54.100 libmp3lame frame= 621 fps= 27 q=40.0 size= 5451kB time=00:00:20.73 bitrate=2153.8kbits/s speed=0.904x And here is my command to stream from the h.264 encoded stream while adding audio coming from the USB Sound card. It is based on this gist https://gist.github.com/olasd/9841772 : VBR="5000k" FPS="30" ffmpeg -i "$SOURCE" -thread_queue_size 2048 -f pulse -i default -vcodec h264 -r 30 -g $(($FPS * 2)) -b:v $VBR -maxrate 7000k -threads 6 -crf 3 -b:a 712000 -bufsize 512k -f flv "$YOUTUBE_URL/$KEY" If you have any pointer to help me, please let me know. I've been reading quite a lot for a while regarding ffmpeg, but I can't seem to understand the basics. Best regards, -- Bruno Verachten

3 6

Compiled ffmpeg - x264 - instability when using -pix_fmt yuv420p
by Jonathan Niquet 12 Sep '19

12 Sep '19

Hey there, We've been using John Van Sickle's ffmpeg static build for quite a while and it's worked wonderfully for us. However, we recently had to incorporate aac into our build. I then started to statically compile every library we needed and proceed to successfully build FFmpeg. This is on Linux, centos 7.6. This was my config arguments: --extra-ldflags="-L$/home/jon/ffmpegDependancies/lib" --extra-ldflags="-L$/usr/local/lib" --extra-cflags="-I/home/jon/ffmpegDependancies/include" --prefix="/home/jon/ffmpegBuild" --extra-libs="-lpthread -lm -fopenmp" --enable-gpl --enable-version3 --enable-nonfree --pkg-config-flags="--static" --enable-static --disable-shared --enable-debug --disable-ffplay --disable-indev=sndio --disable-outdev=sndio --enable-libfdk-aac --enable-frei0r --enable-libaom --enable-libfribidi --enable-libass --enable-libvpx --enable-libx264 --enable-libwebp --enable-libxml2 --enable-fontconfig --enable-gray --enable-libfreetype --enable-libzvbi --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libmp3lame --enable-libopus --enable-libopenjpeg --enable-libzimg --enable-libspeex --enable-libx265 --enable-gmp --enable-libvo-amrwbenc --enable-libopencore-amrwb --enable-libopencore-amrnb --enable-libsoxr --enable-libxvid However, in a random fashion, whenever we use "*-pix_fmt yuv420p*" when encoding libx264 (*-c:v libx264 -c:a copy -crf 20 -pix_fmt yuv420p -vf colormatrix=bt601:bt709*), FFmpeg will randomly segfault between 40% to 45% of the time. Using the same command 20 times in a row, on the same computer, will literally give 11 completion and 9 segfaults. I've tried recompiling the whole things on a virtual machine specially setup for this task (blank, minimal install) and the exact same behavior is observed. I've tried to strace the process, I didn't notice anything that sounds like a solution. >From John's static build, I only removed 3 libraries: gnutls, librubberband and libtheora. I'm thinking it might be a problem with my x264 compilation, the randomness of the things might point to threading issues, but I'm not too sure what to look at at this point. Anyone experienced something similar before or would have clues to help me debug this hellish instability? Thanks! [image: RODEO FX] <https://www.rodeofx.com/> [image: Facebook] <https://www.facebook.com/rodeofx/> [image: Twitter] <https://twitter.com/FXRodeo> [image: LinkedIn] <https://www.linkedin.com/company/251532/admin/> [image: Vimeo] <https://vimeo.com/rodeofx> [image: Instagram] <https://www.instagram.com/rodeofxstyle/> *Jonathan Niquet <https://ca.linkedin.com/in/jonathan-niquet-62b37239>* Application Support Specialist *jniquet(a)rodeofx.com <jniquet(a)rodeofx.com> * 514.397.9999 ext.599 *www.rodeofx.com <https://www.rodeofx.com/>*

2 2

Resolving -filter_complex overlay / -vf yadif conflicts in subprocess call Python script
by pittschick＠me.com 12 Sep '19

12 Sep '19

Hello! Thanks for admitting me to FFmpeg-user, and thanks to all those who maintain this list. The information I’ve been receiving since joining is outstanding. This is a bit of a basic question I fear, but searching online hasn’t helped. I am just co-writing a Python script which uses subprocess calls to run an FFmpeg command. I’ve been try to combine a watermark overlay with a command that uses yadif. As a command it would run like so: ffmpeg -i input_file -i watermark.png -filter_complex overlay -c:v libx263 -pix_fmt yuv420p -vf yadif -metadata copyright=“blah” -metadata comment=“contact blah” -c:a aaa -report output_file For reference, the script is here: https://github.com/digitensions/MACEscripts/blob/master/main.py My error message: ffmpeg started on 2019-09-11 at 11:12:45 Report written to "ffmpeg-20190911-111245.log" ffmpeg version 4.1.3 Copyright (c) 2000-2019 the FFmpeg developers built with Apple LLVM version 9.0.0 (clang-900.0.39.2) configuration: --prefix=/usr/local/Cellar/ffmpeg/4.1.3_1 --enable-shared --enable-pthreads --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags='-I/Library/Java/JavaVirtualMachines/adoptopenjdk-11.0.2.jdk/Contents/Home/include -I/Library/Java/JavaVirtualMachines/adoptopenjdk-11.0.2.jdk/Contents/Home/include/darwin' --host-ldflags= --enable-ffplay --enable-gnutls --enable-gpl --enable-libaom --enable-libbluray --enable-libmp3lame --enable-libopus --enable-librubberband --enable-libsnappy --enable-libtesseract --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --enable-libxvid --enable-lzma --enable-libfontconfig --enable-libfreetype --enable-frei0r --enable-libass --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librtmp --enable-libspeex --enable-videotoolbox --disable-libjack --disable-indev=jack --enable-libaom --enable-libsoxr libavutil 56. 22.100 / 56. 22.100 libavcodec 58. 35.100 / 58. 35.100 libavformat 58. 20.100 / 58. 20.100 libavdevice 58. 5.100 / 58. 5.100 libavfilter 7. 40.101 / 7. 40.101 libavresample 4. 0. 0 / 4. 0. 0 libswscale 5. 3.100 / 5. 3.100 libswresample 3. 3.100 / 3. 3.100 libpostproc 55. 3.100 / 55. 3.100 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/Users/Joanna/Desktop/new(ScriptTest)/[Chimney].mov': Metadata: major_brand : qt minor_version : 512 compatible_brands: qt encoder : Lavf58.20.100 Duration: 00:00:26.32, start: 0.000000, bitrate: 163608 kb/s Stream #0:0(eng): Video: prores (apch / 0x68637061), yuv422p10le(tv, bt709, progressive), 1920x1080, 162452 kb/s, SAR 1:1 DAR 16:9, 25 fps, 25 tbr, 12800 tbn, 12800 tbc (default) Metadata: handler_name : VideoHandler encoder : Lavc58.35.100 prores_ks timecode : 01:00:00:00 Stream #0:1(eng): Audio: pcm_s24le (in24 / 0x34326E69), 48000 Hz, mono, s32 (24 bit), 1152 kb/s (default) Metadata: handler_name : SoundHandler Stream #0:2(eng): Data: none (tmcd / 0x64636D74), 0 kb/s Metadata: handler_name : TimeCodeHandler timecode : 01:00:00:00 Input #1, png_pipe, from '/Users/Joanna/Desktop/new(ScriptTest)/bitc/venv/watermarks/FHD.png': Duration: N/A, bitrate: N/A Stream #1:0: Video: png, rgba(pc), 1920x1080 [SAR 2835:2835 DAR 16:9], 25 tbr, 25 tbn, 25 tbc Filtergraph 'yadif' was specified through the -vf/-af/-filter option for output stream 0:0, which is fed from a complex filtergraph. -vf/-af/-filter and -filter_complex cannot be used together for the same stream. (venv) Joanna:venv Joanna$ I’m aware my source is progressive, my only available test file at present. I tried a few options combining yadif with the -filter_complex and had no success, but I wonder if those more knowledgeable would have an effective work around, or could point me to one? The alternative is to write an if statement that checks for interlacing and activates the yadif call separately, which I’m happy to attempt if needed. Any advice gratefully received. Joanna White

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