August 2020 - ffmpeg-user - lists.ffmpeg.org

Copying sections of an mp4 by time stamp
by James Sundquist 27 Aug '20

27 Aug '20

I'm looking to copy sections of example.mp4 Ideally this would be by time stamp. Perhaps the time stamps are noted in a text file. Example as minutes:second 0:20 - 0:40 as a an mp4 with title "Exercise 1" 0:40 - 0:59 as an mp4 with title "Exercise 2" 0:20 - 0:59 as an mp4 with title "Primary Exercises" Any suggestions appreciated. I'm hoping to repeat this process with a dozen movies. Thanks.

4 4

Confused with an example of stream mapping in ffmpeg man page
by scrutinizer 27 Aug '20

27 Aug '20

The example reads as follows: ffmpeg -i multichannel.mxf -map 0:v:0 -map 0:a:0 -map 0:a:0 -c:a:0 ac3 -b:a:0 640k -ac:a:1 2 -c:a:1 aac -b:2 128k out.mp4 In the above example, a multichannel audio stream is mapped twice for output. The first instance is encoded with codec ac3 and bitrate 640k. The second instance is downmixed to 2 channels and encoded with codec aac. A bitrate of 128k is specified for it using absolute index of the output stream. We see the second audio stream appearing as in “-ac:a:1" and “-c:a:1” and the set of options is capped with the absolute index for the stream number 2 written as “-b:2”. However the second manual mapping option is “-map 0:a:0” in the example. Shouldn’t it have been “-map 0:a:1”? Prior to the example we don’t know anything about how many streams are in the output and input files. If there’re more than 1 then it’s logical to assume that audio-stream number 1 is encoded with ac3, while the other one is set to be made as a 2-channel encoded with aac. Does all above mean that the correct command line should’ve been “ffmpeg -i multichannel.mxf -map 0:v:0 -map 0:a:0 -map 0:a:1 -c:a:0 ac3 -b:a:0 640k -ac:a:1 2 -c:a:1 aac -b:2 128k out.mp4”? Kindest regards, Elijah

2 1

MKV: parser not found for codec ffv1?
by Peter B. 27 Aug '20

27 Aug '20

Hello everyone! I've just received an FFprobe (version git-2019-12-29-e20c6d9) logfile that contained the following error message(s): // ----------------------------------- [matroska,webm @ 00000000005b4940] Before avformat_find_stream_info() pos: 889 bytes read:32768 seeks:0 nb_streams:1 [matroska,webm @ 00000000005b4940] parser not found for codec ffv1, packets or times may be invalid. [matroska,webm @ 00000000005b4940] parser not found for codec ffv1, packets or times may be invalid. [matroska,webm @ 00000000005b4940] All info found [matroska,webm @ 00000000005b4940] After avformat_find_stream_info() pos: 59402 bytes read:65536 seeks:0 frames:1 // ----------------------------------- I haven't seen the files myself, but they are said to work fine. I would be very interested in more information about these messages. Especially regarding "parser not found for codec ffv1"? Thank you very much in advance, Peter B. Complete commandline and (hopefully) uncut console output as follows: // ----------------------------------- ffprobe started on 2020-08-25 at 15:14:58 Report written to "ffprobe-20200825-151458.log" Log level: 48 Command line: "C:\\ffmpeg\\bin\\ffprobe.exe" -i "G:\\TiFFTest\\test.mkv" -report ffprobe version git-2019-12-29-e20c6d9 Copyright (c) 2007-2019 the FFmpeg developers built with gcc 9.2.1 (GCC) 20191125 configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf libavutil 56. 38.100 / 56. 38.100 libavcodec 58. 65.100 / 58. 65.100 libavformat 58. 35.101 / 58. 35.101 libavdevice 58. 9.101 / 58. 9.101 libavfilter 7. 70.100 / 7. 70.100 libswscale 5. 6.100 / 5. 6.100 libswresample 3. 6.100 / 3. 6.100 libpostproc 55. 6.100 / 55. 6.100 [NULL @ 00000000005b4940] Opening 'G:\TiFFTest\test.mkv' for reading [file @ 00000000005b5280] Setting default whitelist 'file,crypto' [matroska,webm @ 00000000005b4940] Format matroska,webm probed with size=2048 and score=100 st:0 removing common factor 1000000 from timebase [matroska,webm @ 00000000005b4940] Before avformat_find_stream_info() pos: 889 bytes read:32768 seeks:0 nb_streams:1 [matroska,webm @ 00000000005b4940] parser not found for codec ffv1, packets or times may be invalid. [matroska,webm @ 00000000005b4940] parser not found for codec ffv1, packets or times may be invalid. [matroska,webm @ 00000000005b4940] All info found [matroska,webm @ 00000000005b4940] After avformat_find_stream_info() pos: 59402 bytes read:65536 seeks:0 frames:1 Input #0, matroska,webm, from 'G:\TiFFTest\test.mkv': Metadata: ENCODER : Lavf58.35.101 Duration: 00:00:55.32, start: 0.000000, bitrate: 67535 kb/s Stream #0:0, 1, 1/1000: Video: ffv1 (FFV1 / 0x31564646), bgra, 720x576, 25 fps, 25 tbr, 1k tbn, 1k tbc (default) Metadata: ENCODER : Lavc58.65.100 ffv1 DURATION : 00:00:55.320000000 [AVIOContext @ 00000000005be540] Statistics: 65536 bytes read, 0 seeks

2 2

Demuxing HLS stream of fmp4 segments
by Pedro Pedrosa 27 Aug '20

27 Aug '20

Hello all I'm trying to demux an HLS stream containing fmp4 segments. It works fine if I demux from the start of the input but as soon as I add the -ss flag to skip to a timecode it no longer produces any output. I have tested on my own ffmpeg-generated streams and also on a public file at https://bitmovin-a.akamaihd.net/content/MI201109210084_1/m3u8s-fmp4/f08e80d… Exact command that does not work: ffmpeg -ss 00:03:00 -i https://bitmovin-a.akamaihd.net/content/MI201109210084_1/m3u8s-fmp4/f08e80d… -y -frames 1 -f image2 test.jpg Usage that works (omit -ss): ffmpeg -i https://bitmovin-a.akamaihd.net/content/MI201109210084_1/m3u8s-fmp4/f08e80d… -y -frames 1 -f image2 test.jpg Any help would be greatly appreciated

3 6

When relaying RTMP streams ffmpeg quits with av_interleaved_write_frame message
by KRISHNAKUMAR N K 25 Aug '20

25 Aug '20

I am converting a UDP input stream to a RTMP out and its getting pushed to a media server like wowza. The feed works fine even for a few days/weeks without any issue, but suddenly it stops because of *"av_interleaved_write_frame(): End of file". *I am not sure what the root cause is, can someone please help/suggest the right path. *Log File:* https://drive.google.com/file/d/1VUfc57QlVimX2FJKM54PYkGEVlKjhvB4/view?usp=… *ffmpeg Command:* *ffmpeg -err_detect aggressive -fflags discardcorrupt -i udp://230.1.1.9:9000?fifo_size=5000000&overrun_nonfatal=1 <http://230.1.1.9:9000?fifo_size=5000000&overrun_nonfatal=1> -analyzeduration 25M -probesize 50M -threads 0 -vsync 1 -filter_complex [i:0x222]yadif,setdar=16/9[1out1] -map [1out1] -map i:0x223 -c:v libx264 -x264-params nal-hrd=cbr -b:v 2000k -maxrate 2000k -bufsize 3000k -r 25 -g 50 -profile:v main -level 3.0 -pix_fmt yuv420p -c:a libfdk_aac -b:a 128k -ac 2 -ar 48000 -sc_threshold 0 -s 1280x720 -tune film -af aresample=async=1:min_hard_comp=0.100000:first_pts=0 -x264opts opencl -f flv rtmp://test.com:1935/test-src/srclive <http://test.com:1935/test-src/srclive>* I have also tried the latest build from the GIT, but still facing the same issue. *ffmpeg version : * *ffmpeg version N-94690-g59e651c Copyright (c) 2000-2019 the FFmpeg developersbuilt with gcc 4.8.5 (GCC) 20150623 (Red Hat 4.8.5-36)configuration: --prefix=/root/ffmpeg_build --pkg-config-flags=--static --extra-cflags=-I/root/ffmpeg_build/include --extra-ldflags=-L/root/ffmpeg_build/lib --extra-libs=-lpthread --extra-libs=-lm --bindir=/root/bin --enable-gpl --enable-libfdk_aac --enable-libfreetype --enable-libmp3lame --enable-libopus --enable-libvpx --enable-libx264 --enable-libx265 --enable-nonfree --enable-openssl libavutil 56. 33.100 / 56. 33.100 libavcodec 58. 55.102 / 58. 55.102 libavformat 58. 31.104 / 58. 31.104 libavdevice 58. 9.100 / 58. 9.100 libavfilter 7. 58.101 / 7. 58.101 libswscale 5. 6.100 / 5. 6.100 libswresample 3. 6.100 / 3. 6.100 libpostproc 55. 6.100 / 55. 6.100* *Last Few Log Lines:* *Mon Aug 24 07:46:15 2020 udp://230.1.1.9:9000?fifo_size=5000000&overrun_nonfatal=1 <http://230.1.1.9:9000?fifo_size=5000000&overrun_nonfatal=1>: corrupt decoded frame in stream 0Mon Aug 24 07:46:16 2020 Last message repeated 8 timesMon Aug 24 07:46:16 2020 udp://230.1.1.9:9000?fifo_size=5000000&overrun_nonfatal=1 <http://230.1.1.9:9000?fifo_size=5000000&overrun_nonfatal=1>: corrupt decoded frame in stream 0Mon Aug 24 07:46:16 2020 Last message repeated 9 timesMon Aug 24 07:46:16 2020 udp://230.1.1.9:9000?fifo_size=5000000&overrun_nonfatal=1 <http://230.1.1.9:9000?fifo_size=5000000&overrun_nonfatal=1>: corrupt decoded frame in stream 0Mon Aug 24 07:46:17 2020 Last message repeated 11 timesMon Aug 24 07:46:17 2020 [mpegts @ 0x3ba7c00] Dropped corrupted packet (stream = 3)Mon Aug 24 07:56:53 2020 [mpegts @ 0x3ba7c00] Dropped corrupted packet (stream = 0)Mon Aug 24 07:56:53 2020 udp://230.1.1.9:9000?fifo_size=5000000&overrun_nonfatal=1 <http://230.1.1.9:9000?fifo_size=5000000&overrun_nonfatal=1>: corrupt decoded frame in stream 0Mon Aug 24 07:56:53 2020 [h264 @ 0x3fe5780] reference picture missing during reorderMon Aug 24 07:56:53 2020 [h264 @ 0x3fe5780] Missing reference picture, default is 2147483647Mon Aug 24 07:56:53 2020 [h264 @ 0x446c100] mmco: unref short failureMon Aug 24 07:56:53 2020 Last message repeated 1 timesMon Aug 24 07:56:53 2020 [h264 @ 0x446c100] number of reference frames (0+4) exceeds max (3; probably corrupt input), discarding oneMon Aug 24 07:56:53 2020 [h264 @ 0x446c100] reference picture missing during reorderMon Aug 24 07:56:53 2020 [h264 @ 0x446c100] Missing reference picture, default is 850916Mon Aug 24 07:56:53 2020 udp://230.1.1.9:9000?fifo_size=5000000&overrun_nonfatal=1 <http://230.1.1.9:9000?fifo_size=5000000&overrun_nonfatal=1>: corrupt decoded frame in stream 0Mon Aug 24 07:56:54 2020 av_interleaved_write_frame(): End of fileMon Aug 24 07:56:54 2020 udp://230.1.1.9:9000?fifo_size=5000000&overrun_nonfatal=1 <http://230.1.1.9:9000?fifo_size=5000000&overrun_nonfatal=1>: corrupt decoded frame in stream 0Mon Aug 24 07:56:54 2020 av_interleaved_write_frame(): End of fileMon Aug 24 07:56:54 2020 [flv @ 0x4352840] Failed to update header with correct duration.Mon Aug 24 07:56:54 2020 [flv @ 0x4352840] Failed to update header with correct filesize.Mon Aug 24 07:56:54 2020 Error writing trailer of rtmp://test.com:1935/test-src/srclive <http://test.com:1935/test-src/srclive>: End of fileMon Aug 24 07:56:54 2020 video:8009052kB audio:512609kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.497730%Mon Aug 24 07:56:54 2020 [libx264 @ 0x3c0fe80] frame I:16404 Avg QP:16.69 size:136257Mon Aug 24 07:56:54 2020 [libx264 @ 0x3c0fe80] frame P:367968 Avg QP:21.16 size: 12282Mon Aug 24 07:56:54 2020 [libx264 @ 0x3c0fe80] frame B:435816 Avg QP:26.11 size: 3321Mon Aug 24 07:56:54 2020 [libx264 @ 0x3c0fe80] consecutive B-frames: 6.2% 66.5% 7.2% 20.1%Mon Aug 24 07:56:54 2020 [libx264 @ 0x3c0fe80] mb I I16..4: 14.9% 0.0% 85.1%Mon Aug 24 07:56:54 2020 [libx264 @ 0x3c0fe80] mb P I16..4: 2.5% 0.0% 2.8% P16..4: 33.4% 9.7% 6.8% 0.0% 0.0% skip:44.9%Mon Aug 24 07:56:54 2020 [libx264 @ 0x3c0fe80] mb B I16..4: 0.4% 0.0% 0.3% B16..8: 21.4% 1.6% 0.3% direct: 1.3% skip:74.8% L0:32.7% L1:62.7% BI: 4.6%Mon Aug 24 07:56:54 2020 [libx264 @ 0x3c0fe80] coded y,uvDC,uvAC intra: 66.8% 78.9% 55.7% inter: 7.1% 17.9% 1.5%Mon Aug 24 07:56:54 2020 [libx264 @ 0x3c0fe80] i16 v,h,dc,p: 33% 41% 8% 18%Mon Aug 24 07:56:54 2020 [libx264 @ 0x3c0fe80] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 26% 30% 10% 4% 6% 5% 7% 5% 6%Mon Aug 24 07:56:54 2020 [libx264 @ 0x3c0fe80] i8c dc,h,v,p: 32% 38% 22% 8%Mon Aug 24 07:56:54 2020 [libx264 @ 0x3c0fe80] Weighted P-Frames: Y:0.1% UV:0.0%Mon Aug 24 07:56:54 2020 [libx264 @ 0x3c0fe80] ref P L0: 76.0% 9.7% 14.2% 0.0%Mon Aug 24 07:56:54 2020 [libx264 @ 0x3c0fe80] ref B L0: 89.4% 10.6%Mon Aug 24 07:56:54 2020 [libx264 @ 0x3c0fe80] ref B L1: 98.9% 1.1%Mon Aug 24 07:56:54 2020 [libx264 @ 0x3c0fe80] kb/s:2000.00Mon Aug 24 07:56:55 2020 ERROR: Conversion failed!* Regards *KrishnaKumar*

1 0

Why is format=rgb24 required after maskedmerge?
by Michael Koch 25 Aug '20

25 Aug '20

Hello all, I have a question about this script: rem Create red and yellow videos 300x300 c:\ffmpeg\ffmpeg -f lavfi -i color=red:size=300x300:duration=5 -y red.mp4 c:\ffmpeg\ffmpeg -f lavfi -i color=yellow:size=300x300:duration=5 -y yellow.mp4 rem Create a mergemap file 600x300 c:\ffmpeg\ffmpeg -f lavfi -i nullsrc=size=300x300 -vf "format=gray8,geq='clip(128-128/10*(180-200/150*hypot(X-150,Y-150)),0,255)',v360=input=fisheye:output=e:ih_fov=200:iv_fov=200,format=rgb24" -frames 1 -y mergemap.png rem Stitch two fisheye videos together to an equirectangular video, with merging at the border c:\ffmpeg\ffmpeg -i red.mp4 -i yellow.mp4 -i mergemap.png -lavfi "[0]format=rgb24,v360=input=fisheye:output=e:ih_fov=200:iv_fov=200[a];[1]format=rgb24,v360=input=fisheye:output=e:yaw=180:ih_fov=200:iv_fov=200[b];[a][b][2]maskedmerge,format=rgb24,format=yuv422p" -y out.mp4 This works fine and the output video looks as expected. My question is why "format=rgb24" is required between "maskedmerge" and "format=yuv422p". Normally two consecutive format conversions should be unnecessary. But it doesn't work when I omit "format=rgb24". The colors become wrong. The console output is copied below. After I pasted the console output to this mail, I did make a test with the latest download from Zeranoe, but it's the same problem. Thanks, Michael C:\Users\astro\Desktop\Ricoh_Theta>rem Create red and yellow videos C:\Users\astro\Desktop\Ricoh_Theta>c:\ffmpeg\ffmpeg -f lavfi -i color=red:size=300x300:duration=5 -y red.mp4 ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers built with gcc 9.3.1 (GCC) 20200523 configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf libavutil 56. 55.100 / 56. 55.100 libavcodec 58. 93.100 / 58. 93.100 libavformat 58. 47.100 / 58. 47.100 libavdevice 58. 11.100 / 58. 11.100 libavfilter 7. 86.100 / 7. 86.100 libswscale 5. 8.100 / 5. 8.100 libswresample 3. 8.100 / 3. 8.100 libpostproc 55. 8.100 / 55. 8.100 Input #0, lavfi, from 'color=red:size=300x300:duration=5': Duration: N/A, start: 0.000000, bitrate: N/A Stream #0:0: Video: rawvideo (I420 / 0x30323449), yuv420p, 300x300 [SAR 1:1 DAR 1:1], 25 tbr, 25 tbn, 25 tbc Stream mapping: Stream #0:0 -> #0:0 (rawvideo (native) -> h264 (libx264)) Press [q] to stop, [?] for help [libx264 @ 0000011f173614c0] using SAR=1/1 [libx264 @ 0000011f173614c0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2 [libx264 @ 0000011f173614c0] profile High, level 1.3, 4:2:0, 8-bit [libx264 @ 0000011f173614c0] 264 - core 160 - H.264/MPEG-4 AVC codec - Copyleft 2003-2020 - 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=9 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=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00 Output #0, mp4, to 'red.mp4': Metadata: encoder : Lavf58.47.100 Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 300x300 [SAR 1:1 DAR 1:1], q=-1--1, 25 fps, 12800 tbn, 25 tbc Metadata: encoder : Lavc58.93.100 libx264 Side data: cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A [Parsed_color_0 @ 0000011f17310b40] EOF timestamp not reliable frame= 125 fps=0.0 q=-1.0 Lsize= 5kB time=00:00:04.88 bitrate= 8.5kbits/s speed=91.2x video:3kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 83.759773% [libx264 @ 0000011f173614c0] frame I:1 Avg QP: 9.00 size: 71 [libx264 @ 0000011f173614c0] frame P:31 Avg QP: 9.23 size: 23 [libx264 @ 0000011f173614c0] frame B:93 Avg QP:12.67 size: 15 [libx264 @ 0000011f173614c0] consecutive B-frames: 0.8% 0.0% 0.0% 99.2% [libx264 @ 0000011f173614c0] mb I I16..4: 100.0% 0.0% 0.0% [libx264 @ 0000011f173614c0] mb P I16..4: 0.0% 0.0% 0.0% P16..4: 0.0% 0.0% 0.0% 0.0% 0.0% skip:100.0% [libx264 @ 0000011f173614c0] mb B I16..4: 0.0% 0.0% 0.0% B16..8: 0.0% 0.0% 0.0% direct: 0.0% skip:100.0% [libx264 @ 0000011f173614c0] 8x8 transform intra:0.0% [libx264 @ 0000011f173614c0] coded y,uvDC,uvAC intra: 0.0% 0.3% 0.0% inter: 0.0% 0.0% 0.0% [libx264 @ 0000011f173614c0] i16 v,h,dc,p: 95% 0% 5% 0% [libx264 @ 0000011f173614c0] i8c dc,h,v,p: 100% 0% 0% 0% [libx264 @ 0000011f173614c0] Weighted P-Frames: Y:0.0% UV:0.0% [libx264 @ 0000011f173614c0] kb/s:3.42 C:\Users\astro\Desktop\Ricoh_Theta>c:\ffmpeg\ffmpeg -f lavfi -i color=yellow:size=300x300:duration=5 -y yellow.mp4 ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers built with gcc 9.3.1 (GCC) 20200523 configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf libavutil 56. 55.100 / 56. 55.100 libavcodec 58. 93.100 / 58. 93.100 libavformat 58. 47.100 / 58. 47.100 libavdevice 58. 11.100 / 58. 11.100 libavfilter 7. 86.100 / 7. 86.100 libswscale 5. 8.100 / 5. 8.100 libswresample 3. 8.100 / 3. 8.100 libpostproc 55. 8.100 / 55. 8.100 Input #0, lavfi, from 'color=yellow:size=300x300:duration=5': Duration: N/A, start: 0.000000, bitrate: N/A Stream #0:0: Video: rawvideo (I420 / 0x30323449), yuv420p, 300x300 [SAR 1:1 DAR 1:1], 25 tbr, 25 tbn, 25 tbc Stream mapping: Stream #0:0 -> #0:0 (rawvideo (native) -> h264 (libx264)) Press [q] to stop, [?] for help [libx264 @ 000002d239aa1500] using SAR=1/1 [libx264 @ 000002d239aa1500] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2 [libx264 @ 000002d239aa1500] profile High, level 1.3, 4:2:0, 8-bit [libx264 @ 000002d239aa1500] 264 - core 160 - H.264/MPEG-4 AVC codec - Copyleft 2003-2020 - 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=9 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=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00 Output #0, mp4, to 'yellow.mp4': Metadata: encoder : Lavf58.47.100 Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 300x300 [SAR 1:1 DAR 1:1], q=-1--1, 25 fps, 12800 tbn, 25 tbc Metadata: encoder : Lavc58.93.100 libx264 Side data: cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A [Parsed_color_0 @ 000002d239a50b80] EOF timestamp not reliable frame= 125 fps=0.0 q=-1.0 Lsize= 5kB time=00:00:04.88 bitrate= 8.5kbits/s speed=96.7x video:3kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 83.759773% [libx264 @ 000002d239aa1500] frame I:1 Avg QP: 9.00 size: 71 [libx264 @ 000002d239aa1500] frame P:31 Avg QP: 9.23 size: 23 [libx264 @ 000002d239aa1500] frame B:93 Avg QP:12.67 size: 15 [libx264 @ 000002d239aa1500] consecutive B-frames: 0.8% 0.0% 0.0% 99.2% [libx264 @ 000002d239aa1500] mb I I16..4: 100.0% 0.0% 0.0% [libx264 @ 000002d239aa1500] mb P I16..4: 0.0% 0.0% 0.0% P16..4: 0.0% 0.0% 0.0% 0.0% 0.0% skip:100.0% [libx264 @ 000002d239aa1500] mb B I16..4: 0.0% 0.0% 0.0% B16..8: 0.0% 0.0% 0.0% direct: 0.0% skip:100.0% [libx264 @ 000002d239aa1500] 8x8 transform intra:0.0% [libx264 @ 000002d239aa1500] coded y,uvDC,uvAC intra: 0.0% 0.3% 0.0% inter: 0.0% 0.0% 0.0% [libx264 @ 000002d239aa1500] i16 v,h,dc,p: 95% 0% 5% 0% [libx264 @ 000002d239aa1500] i8c dc,h,v,p: 100% 0% 0% 0% [libx264 @ 000002d239aa1500] Weighted P-Frames: Y:0.0% UV:0.0% [libx264 @ 000002d239aa1500] kb/s:3.42 C:\Users\astro\Desktop\Ricoh_Theta>rem Create the mergemap file C:\Users\astro\Desktop\Ricoh_Theta>c:\ffmpeg\ffmpeg -f lavfi -i nullsrc=size=300x300 -vf "format=gray8,geq='clip(128-128/10*(180-200/150*hypot(X-150,Y-150)),0,255)',v360=input=fisheye:output=e:ih_fov=200:iv_fov=200,format=rgb24" -frames 1 -y mergemap.png ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers built with gcc 9.3.1 (GCC) 20200523 configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf libavutil 56. 55.100 / 56. 55.100 libavcodec 58. 93.100 / 58. 93.100 libavformat 58. 47.100 / 58. 47.100 libavdevice 58. 11.100 / 58. 11.100 libavfilter 7. 86.100 / 7. 86.100 libswscale 5. 8.100 / 5. 8.100 libswresample 3. 8.100 / 3. 8.100 libpostproc 55. 8.100 / 55. 8.100 Input #0, lavfi, from 'nullsrc=size=300x300': Duration: N/A, start: 0.000000, bitrate: N/A Stream #0:0: Video: rawvideo (I420 / 0x30323449), yuv420p, 300x300 [SAR 1:1 DAR 1:1], 25 tbr, 25 tbn, 25 tbc Stream mapping: Stream #0:0 -> #0:0 (rawvideo (native) -> png (native)) Press [q] to stop, [?] for help [swscaler @ 00000146112000c0] Warning: data is not aligned! This can lead to a speed loss Output #0, image2, to 'mergemap.png': Metadata: encoder : Lavf58.47.100 Stream #0:0: Video: png, rgb24, 600x300 [SAR 1:1 DAR 2:1], q=2-31, 200 kb/s, 25 fps, 25 tbn, 25 tbc Metadata: encoder : Lavc58.93.100 png frame= 1 fps=0.0 q=-0.0 Lsize=N/A time=00:00:00.04 bitrate=N/A speed=0.867x video:37kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown C:\Users\astro\Desktop\Ricoh_Theta>rem Stitch two fisheye videos together to an equirectangular video, with merging at the border C:\Users\astro\Desktop\Ricoh_Theta>c:\ffmpeg\ffmpeg -i red.mp4 -i yellow.mp4 -i mergemap.png -lavfi "[0]format=rgb24,v360=input=fisheye:output=e:ih_fov=200:iv_fov=200[a];[1]format=rgb24,v360=input=fisheye:output=e:yaw=180:ih_fov=200:iv_fov=200[b];[a][b][2]maskedmerge,format=rgb24,format=yuv422p" -y out.mp4 ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers built with gcc 9.3.1 (GCC) 20200523 configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf libavutil 56. 55.100 / 56. 55.100 libavcodec 58. 93.100 / 58. 93.100 libavformat 58. 47.100 / 58. 47.100 libavdevice 58. 11.100 / 58. 11.100 libavfilter 7. 86.100 / 7. 86.100 libswscale 5. 8.100 / 5. 8.100 libswresample 3. 8.100 / 3. 8.100 libpostproc 55. 8.100 / 55. 8.100 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'red.mp4': Metadata: major_brand : isom minor_version : 512 compatible_brands: isomiso2avc1mp41 encoder : Lavf58.47.100 Duration: 00:00:05.00, start: 0.000000, bitrate: 8 kb/s Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 300x300 [SAR 1:1 DAR 1:1], 4 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc (default) Metadata: handler_name : VideoHandler Input #1, mov,mp4,m4a,3gp,3g2,mj2, from 'yellow.mp4': Metadata: major_brand : isom minor_version : 512 compatible_brands: isomiso2avc1mp41 encoder : Lavf58.47.100 Duration: 00:00:05.00, start: 0.000000, bitrate: 8 kb/s Stream #1:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 300x300 [SAR 1:1 DAR 1:1], 4 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc (default) Metadata: handler_name : VideoHandler Input #2, png_pipe, from 'mergemap.png': Duration: N/A, bitrate: N/A Stream #2:0: Video: png, rgb24(pc), 600x300 [SAR 1:1 DAR 2:1], 25 tbr, 25 tbn, 25 tbc Stream mapping: Stream #0:0 (h264) -> format Stream #1:0 (h264) -> format Stream #2:0 (png) -> maskedmerge:mask format -> Stream #0:0 (libx264) Press [q] to stop, [?] for help [libx264 @ 00000214ec828ac0] using SAR=1/1 [libx264 @ 00000214ec828ac0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2 [libx264 @ 00000214ec828ac0] profile High 4:2:2, level 2.1, 4:2:2, 8-bit [libx264 @ 00000214ec828ac0] 264 - core 160 - H.264/MPEG-4 AVC codec - Copyleft 2003-2020 - 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=9 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=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00 Output #0, mp4, to 'out.mp4': Metadata: major_brand : isom minor_version : 512 compatible_brands: isomiso2avc1mp41 encoder : Lavf58.47.100 Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuv422p, 600x300 [SAR 1:1 DAR 2:1], q=-1--1, 25 fps, 12800 tbn, 25 tbc (default) Metadata: encoder : Lavc58.93.100 libx264 Side data: cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A frame= 125 fps=0.0 q=-1.0 Lsize= 9kB time=00:00:04.88 bitrate= 15.2kbits/s speed=11.4x video:7kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 34.114582% [libx264 @ 00000214ec828ac0] frame I:1 Avg QP:17.94 size: 3053 [libx264 @ 00000214ec828ac0] frame P:31 Avg QP:23.72 size: 33 [libx264 @ 00000214ec828ac0] frame B:93 Avg QP:30.33 size: 23 [libx264 @ 00000214ec828ac0] consecutive B-frames: 0.8% 0.0% 0.0% 99.2% [libx264 @ 00000214ec828ac0] mb I I16..4: 6.5% 92.5% 1.0% [libx264 @ 00000214ec828ac0] mb P I16..4: 0.0% 0.0% 0.0% P16..4: 0.5% 0.0% 0.0% 0.0% 0.0% skip:99.4% [libx264 @ 00000214ec828ac0] mb B I16..4: 0.0% 0.0% 0.0% B16..8: 0.7% 0.0% 0.0% direct: 0.0% skip:99.3% L0:43.5% L1:56.5% BI: 0.0% [libx264 @ 00000214ec828ac0] 8x8 transform intra:92.3% inter:100.0% [libx264 @ 00000214ec828ac0] coded y,uvDC,uvAC intra: 17.4% 24.7% 22.1% inter: 0.0% 0.1% 0.0% [libx264 @ 00000214ec828ac0] i16 v,h,dc,p: 27% 71% 2% 0% [libx264 @ 00000214ec828ac0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 59% 30% 6% 1% 1% 1% 1% 1% 1% [libx264 @ 00000214ec828ac0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 28% 57% 1% 4% 3% 0% 4% 0% 3% [libx264 @ 00000214ec828ac0] i8c dc,h,v,p: 72% 13% 12% 3% [libx264 @ 00000214ec828ac0] Weighted P-Frames: Y:0.0% UV:0.0% [libx264 @ 00000214ec828ac0] ref P L0: 88.1% 3.5% 6.5% 1.9% [libx264 @ 00000214ec828ac0] ref B L0: 69.0% 31.0% [libx264 @ 00000214ec828ac0] ref B L1: 97.3% 2.7% [libx264 @ 00000214ec828ac0] kb/s:9.98

12 65

Audio decode adding 100ms delay
by Max Rowan 24 Aug '20

24 Aug '20

Hi all and thanks in advance for your responses. I've run into an issue where decoding audio adds roughly 100ms of delay to the entire decode. Simply adding the "-an" flag to either the encode/decode immediately takes 100ms off the overall latency. For reference I'm doing a capture from a decklink card and hardware encoding the video out to a UDP stream, which is then wrapped in an SRT stream. I'm not sure if it is of any consequence, but with "-loglevel debug" enabled the stream output for the opus encoder states "delay 120", like so: Stream #0:1, 0, 1/90000: Audio: opus (libopus), 48000 Hz, stereo, s16, delay 120, 128 kb/s I can't find where this "delay" is coming from, how it is calculated, and any change I make to the setting of libupos can never reduce this "delay" below 120. I should say that I had the same issue with other audio codecs as well. Does anyone have any idea where this 100ms is coming from? Encoding: sudo ffmpeg -f decklink -duplex_mode half -format_code Hp50 -queue_size 4976640 -i "DeckLink Duo (1)" -c:v h264_qsv -b:v 6M -maxrate 6M -preset veryslow -bf 0 -refs 1 -c:a libopus -b:a 128k -compression_level 0 -frame_duration 20 -application lowdelay -f mpegts "udp://127.0.0.1:1234?pkt_size=1316" SRT Wrap: srt-live-transmit udp://:1234 "srt://10.0.3.5:1235?mode=listener&pkt_size=1316&latency=0" Decode with audio: ffplay -fast -fflags nobuffer -flags low_delay -framedrop -strict experimental "srt://10.0.3.5:1235?mode=caller&latency=0" Decode no audio: ffplay -fast -fflags nobuffer -flags low_delay -framedrop -strict experimental -an "srt://10.0.3.5:1235?mode=caller&latency=0" Encode Output: sudo ffmpeg -f decklink -duplex_mode half -format_code Hp50 -queue_size 4976640 -i "DeckLink Duo (1)" -c:v h264_qsv -b:v 6M -maxrate 6M -preset veryslow -bf 0 -refs 1 -c:a libopus -b:a 128k -compression_level 0 -frame_duration 20 -application lowdelay -f mpegts "udp://127.0.0.1:1234?pkt_size=1316" ffmpeg version N-98687-g6e951d0cf8 Copyright (c) 2000-2020 the FFmpeg developers built with gcc 9 (Ubuntu 9.3.0-10ubuntu2) configuration: --prefix=/root/ffmpeg_build --pkg-config-flags=--static --extra-cflags='-I/root/ffmpeg_build/include -I/home/max/ffmpeg_sources/BMD_SDK/include' --extra-ldflags='-L/root/ffmpeg_build/lib -L$/home/max/ffmpeg_sources/BMD_SDK/include' --extra-libs='-lpthread -lm' --bindir=/root/bin --enable-libmfx --enable-gpl --enable-gnutls --enable-libass --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-libopus --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --enable-libsrt --enable-decklink --enable-libvmaf --enable-nonfree libavutil 56. 58.100 / 56. 58.100 libavcodec 58.100.100 / 58.100.100 libavformat 58. 50.100 / 58. 50.100 libavdevice 58. 11.101 / 58. 11.101 libavfilter 7. 87.100 / 7. 87.100 libswscale 5. 8.100 / 5. 8.100 libswresample 3. 8.100 / 3. 8.100 libpostproc 55. 8.100 / 55. 8.100 [decklink @ 0x55b52ce07140] Found Decklink mode 1920 x 1080 with rate 50.00 [decklink @ 0x55b52ce07140] Frame received (#1) - No input signal detected - Frames dropped 1 Guessed Channel Layout for Input Stream #0.0 : stereo Input #0, decklink, from 'DeckLink Duo (1)': Duration: N/A, start: 0.000000, bitrate: 1660416 kb/s Stream #0:0: Audio: pcm_s16le, 48000 Hz, stereo, s16, 1536 kb/s Stream #0:1: Video: rawvideo (UYVY / 0x59565955), uyvy422(progressive), 1920x1080, 1658880 kb/s, 50 tbr, 1000k tbn, 1000k tbc Stream mapping: Stream #0:1 -> #0:0 (rawvideo (native) -> h264 (h264_qsv)) Stream #0:0 -> #0:1 (pcm_s16le (native) -> opus (libopus)) Press [q] to stop, [?] for help Output #0, mpegts, to 'udp://127.0.0.1:1234?pkt_size=1316': Metadata: encoder : Lavf58.50.100 Stream #0:0: Video: h264 (h264_qsv), nv12(progressive), 1920x1080, q=-1--1, 6000 kb/s, 50 fps, 90k tbn, 50 tbc Metadata: encoder : Lavc58.100.100 h264_qsv Side data: cpb: bitrate max/min/avg: 6000000/0/6000000 buffer size: 0 vbv_delay: N/A Stream #0:1: Audio: opus (libopus), 48000 Hz, stereo, s16, 128 kb/s Metadata: encoder : Lavc58.100.100 libopus Thanks in advance, Max

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Specify input options
by Simon Brown 21 Aug '20

21 Aug '20

Hi, is it possible to stop FFmpeg from probing the input and just to tell it exactly what it is getting (and obviously suffering the consequences if it's different)? I can reduce probesize but I want essentially zero delay through ffmpeg (no encoding, just repackaging a transport stream as MP4). Regards, Simon

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ffmpeg_g
by Ashim Tom 21 Aug '20

21 Aug '20

what is ffmpeg_g? what is the difference between ffmpeg and ffmpeg_g binary?

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SSL/TLS support for proxy CLI
by Pan_1337 20 Aug '20

20 Aug '20

Hello, if this is not a problem for you and you find time I would be very grateful if I added CLI support for the proxy in ffmpeg. I saw that in 2011 you added support for the environment variable. CLI is flexible for detailed change. I'm sending additional information - https://trac.ffmpeg.org/ticket/7223 Thanks for reading the message. Have a nice day.

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