Not able to scale, pad and combine 2 videos using FFmpeg












0















I am using FFMpeg to scale, pad and merge 2 videos and generate one mp4 file. I am using the following command which leads to an output file with no audio for few seconds in the middle of the second video. Also, there is a faint white border displayed for few seconds on the black frame that I am creating. Though there are no errors in the command but I am getting a warning "[swscaler @ 0x6987800] Warning: data is not aligned! This can lead to a speed loss".



I checked other posts here and tried the solutions provided but it didn't work for me. It would be great if some one can help point out what I am missing.



Thanks in advance.



Here is the command:



ffmpeg -i 1_a.opus -i 2_a.opus -itsoffset 0.024181 -i 01_v.webm -itsoffset 0.113192 -i 02_v.webm -filter_complex 
"[1:a]adelay=15726.168|15726.168[a1];
[0:a][a1]amix;
[3:v]trim=0:15.726168,geq=0:128:128[silence];
[3:v]fifo[3v];
[silence][3v]concat[3_v_silence];
[3_v_silence]scale=-1:240[3v_scaled_240];
[3v_scaled_240]pad=width=320:height=240:x=(320-in_w)/2:y=(240-in_h)/2:color=black[3v_padded];
[2:v]scale=-1:240[2v_scaled_240];
[2v_scaled_240]pad=width=320:height=240:x=(320-in_w)/2:y=(240-in_h)/2:color=black[2v_padded];
[2v_padded]fifo[2v];
[2v][3v_padded]hstack[out_v];
[out_v]pad=width=640:height=480:x=(640-in_w)/2:y=(480-in_h)/2:color=black"
-crf 40 -preset ultrafast -y -r pal out.mp4


Console output:



ffmpeg version 4.0.2-static https://johnvansickle.com/ffmpeg/  Copyright (c) 2000-2018 the FFmpeg developers
built with gcc 6.3.0 (Debian 6.3.0-18+deb9u1) 20170516
configuration: --enable-gpl --enable-version3 --enable-static --disable-debug --disable-ffplay --disable-indev=sndio --disable-outdev=sndio --cc=gcc-6 --enable-fontconfig --enable-frei0r --enable-gnutls --enable-gray --enable-libaom --enable-libfribidi --enable-libass --enable-libvmaf --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librubberband --enable-libsoxr --enable-libspeex --enable-libvorbis --enable-libopus --enable-libtheora --enable-libvidstab --enable-libvo-amrwbenc --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzimg
libavutil 56. 14.100 / 56. 14.100
libavcodec 58. 18.100 / 58. 18.100
libavformat 58. 12.100 / 58. 12.100
libavdevice 58. 3.100 / 58. 3.100
libavfilter 7. 16.100 / 7. 16.100
libswscale 5. 1.100 / 5. 1.100
libswresample 3. 1.100 / 3. 1.100
libpostproc 55. 1.100 / 55. 1.100
Input #0, ogg, from '1_a.opus':
Duration: 00:01:03.82, start: -0.020000, bitrate: 37 kb/s
Stream #0:0: Audio: opus, 48000 Hz, stereo, fltp
Input #1, ogg, from '2_a.opus':
Duration: 00:00:52.40, start: -0.020000, bitrate: 44 kb/s
Stream #1:0: Audio: opus, 48000 Hz, stereo, fltp
Input #2, matroska,webm, from '01_v.webm':
Metadata:
encoder : Lavf56.40.101
Duration: 00:01:03.83, start: 0.000000, bitrate: 202 kb/s
Stream #2:0: Video: vp8, yuv420p(progressive), 640x480, SAR 1:1 DAR 4:3, 333 fps, 333 tbr, 1k tbn, 1k tbc (default)
Input #3, matroska,webm, from '02_v.webm':
Metadata:
encoder : Lavf56.40.101
Duration: 00:00:52.34, start: 0.000000, bitrate: 200 kb/s
Stream #3:0: Video: vp8, yuv420p(progressive), 480x640, SAR 1:1 DAR 3:4, 25 fps, 25 tbr, 1k tbn, 1k tbc (default)
Stream mapping:
Stream #0:0 (opus) -> amix:input0
Stream #1:0 (opus) -> adelay
Stream #2:0 (vp8) -> scale
Stream #3:0 (vp8) -> trim
Stream #3:0 (vp8) -> fifo
amix -> Stream #0:0 (aac)
pad -> Stream #0:1 (libx264)
Press [q] to stop, [?] for help
[swscaler @ 0x6484740] Warning: data is not aligned! This can lead to a speed loss
[libx264 @ 0x63a0d40] using SAR=1/1
[libx264 @ 0x63a0d40] using cpu capabilities: MMX2 SSE2Fast SSSE3 Cache64 SlowShuffle
[libx264 @ 0x63a0d40] profile Constrained Baseline, level 3.0
[libx264 @ 0x63a0d40] 264 - core 155 r2901 7d0ff22 - H.264/MPEG-4 AVC codec - Copyleft 2003-2018 - http://www.videolan.org/x264.html - options: cabac=0 ref=1 deblock=0:0:0 analyse=0:0 me=dia subme=0 psy=1 psy_rd=1.00:0.00 mixed_ref=0 me_range=16 chroma_me=1 trellis=1 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=0 threads=3 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=0 weightp=0 keyint=250 keyint_min=25 scenecut=0 intra_refresh=0 rc=crf mbtree=0 crf=40.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=0
Output #0, mp4, to 'out.mp4':
Metadata:
encoder : Lavf58.12.100
Stream #0:0: Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)
Metadata:
encoder : Lavc58.18.100 aac
Stream #0:1: Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 640x480 [SAR 1:1 DAR 4:3], q=-1--1, 25 fps, 12800 tbn, 25 tbc (default)
Metadata:
encoder : Lavc58.18.100 libx264
Side data:
cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
frame= 1598 fps=131 q=-1.0 Lsize= 1375kB time=00:01:08.16 bitrate= 165.3kbits/s dup=2 drop=1047 speed=5.57x
video:455kB audio:883kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 2.787654%
[aac @ 0x63a31c0] Qavg: 32520.934
[libx264 @ 0x63a0d40] frame I:7 Avg QP:32.00 size: 5746
[libx264 @ 0x63a0d40] frame P:1591 Avg QP:33.93 size: 267
[libx264 @ 0x63a0d40] mb I I16..4: 100.0% 0.0% 0.0%
[libx264 @ 0x63a0d40] mb P I16..4: 0.3% 0.0% 0.0% P16..4: 4.2% 0.0% 0.0% 0.0% 0.0% skip:95.5%
[libx264 @ 0x63a0d40] coded y,uvDC,uvAC intra: 21.3% 18.9% 3.0% inter: 1.1% 0.5% 0.0%
[libx264 @ 0x63a0d40] i16 v,h,dc,p: 54% 27% 11% 9%
[libx264 @ 0x63a0d40] i8c dc,h,v,p: 69% 17% 10% 4%
[libx264 @ 0x63a0d40] kb/s:58.22









share|improve this question





























    0















    I am using FFMpeg to scale, pad and merge 2 videos and generate one mp4 file. I am using the following command which leads to an output file with no audio for few seconds in the middle of the second video. Also, there is a faint white border displayed for few seconds on the black frame that I am creating. Though there are no errors in the command but I am getting a warning "[swscaler @ 0x6987800] Warning: data is not aligned! This can lead to a speed loss".



    I checked other posts here and tried the solutions provided but it didn't work for me. It would be great if some one can help point out what I am missing.



    Thanks in advance.



    Here is the command:



    ffmpeg -i 1_a.opus -i 2_a.opus -itsoffset 0.024181 -i 01_v.webm -itsoffset 0.113192 -i 02_v.webm -filter_complex 
    "[1:a]adelay=15726.168|15726.168[a1];
    [0:a][a1]amix;
    [3:v]trim=0:15.726168,geq=0:128:128[silence];
    [3:v]fifo[3v];
    [silence][3v]concat[3_v_silence];
    [3_v_silence]scale=-1:240[3v_scaled_240];
    [3v_scaled_240]pad=width=320:height=240:x=(320-in_w)/2:y=(240-in_h)/2:color=black[3v_padded];
    [2:v]scale=-1:240[2v_scaled_240];
    [2v_scaled_240]pad=width=320:height=240:x=(320-in_w)/2:y=(240-in_h)/2:color=black[2v_padded];
    [2v_padded]fifo[2v];
    [2v][3v_padded]hstack[out_v];
    [out_v]pad=width=640:height=480:x=(640-in_w)/2:y=(480-in_h)/2:color=black"
    -crf 40 -preset ultrafast -y -r pal out.mp4


    Console output:



    ffmpeg version 4.0.2-static https://johnvansickle.com/ffmpeg/  Copyright (c) 2000-2018 the FFmpeg developers
    built with gcc 6.3.0 (Debian 6.3.0-18+deb9u1) 20170516
    configuration: --enable-gpl --enable-version3 --enable-static --disable-debug --disable-ffplay --disable-indev=sndio --disable-outdev=sndio --cc=gcc-6 --enable-fontconfig --enable-frei0r --enable-gnutls --enable-gray --enable-libaom --enable-libfribidi --enable-libass --enable-libvmaf --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librubberband --enable-libsoxr --enable-libspeex --enable-libvorbis --enable-libopus --enable-libtheora --enable-libvidstab --enable-libvo-amrwbenc --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzimg
    libavutil 56. 14.100 / 56. 14.100
    libavcodec 58. 18.100 / 58. 18.100
    libavformat 58. 12.100 / 58. 12.100
    libavdevice 58. 3.100 / 58. 3.100
    libavfilter 7. 16.100 / 7. 16.100
    libswscale 5. 1.100 / 5. 1.100
    libswresample 3. 1.100 / 3. 1.100
    libpostproc 55. 1.100 / 55. 1.100
    Input #0, ogg, from '1_a.opus':
    Duration: 00:01:03.82, start: -0.020000, bitrate: 37 kb/s
    Stream #0:0: Audio: opus, 48000 Hz, stereo, fltp
    Input #1, ogg, from '2_a.opus':
    Duration: 00:00:52.40, start: -0.020000, bitrate: 44 kb/s
    Stream #1:0: Audio: opus, 48000 Hz, stereo, fltp
    Input #2, matroska,webm, from '01_v.webm':
    Metadata:
    encoder : Lavf56.40.101
    Duration: 00:01:03.83, start: 0.000000, bitrate: 202 kb/s
    Stream #2:0: Video: vp8, yuv420p(progressive), 640x480, SAR 1:1 DAR 4:3, 333 fps, 333 tbr, 1k tbn, 1k tbc (default)
    Input #3, matroska,webm, from '02_v.webm':
    Metadata:
    encoder : Lavf56.40.101
    Duration: 00:00:52.34, start: 0.000000, bitrate: 200 kb/s
    Stream #3:0: Video: vp8, yuv420p(progressive), 480x640, SAR 1:1 DAR 3:4, 25 fps, 25 tbr, 1k tbn, 1k tbc (default)
    Stream mapping:
    Stream #0:0 (opus) -> amix:input0
    Stream #1:0 (opus) -> adelay
    Stream #2:0 (vp8) -> scale
    Stream #3:0 (vp8) -> trim
    Stream #3:0 (vp8) -> fifo
    amix -> Stream #0:0 (aac)
    pad -> Stream #0:1 (libx264)
    Press [q] to stop, [?] for help
    [swscaler @ 0x6484740] Warning: data is not aligned! This can lead to a speed loss
    [libx264 @ 0x63a0d40] using SAR=1/1
    [libx264 @ 0x63a0d40] using cpu capabilities: MMX2 SSE2Fast SSSE3 Cache64 SlowShuffle
    [libx264 @ 0x63a0d40] profile Constrained Baseline, level 3.0
    [libx264 @ 0x63a0d40] 264 - core 155 r2901 7d0ff22 - H.264/MPEG-4 AVC codec - Copyleft 2003-2018 - http://www.videolan.org/x264.html - options: cabac=0 ref=1 deblock=0:0:0 analyse=0:0 me=dia subme=0 psy=1 psy_rd=1.00:0.00 mixed_ref=0 me_range=16 chroma_me=1 trellis=1 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=0 threads=3 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=0 weightp=0 keyint=250 keyint_min=25 scenecut=0 intra_refresh=0 rc=crf mbtree=0 crf=40.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=0
    Output #0, mp4, to 'out.mp4':
    Metadata:
    encoder : Lavf58.12.100
    Stream #0:0: Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)
    Metadata:
    encoder : Lavc58.18.100 aac
    Stream #0:1: Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 640x480 [SAR 1:1 DAR 4:3], q=-1--1, 25 fps, 12800 tbn, 25 tbc (default)
    Metadata:
    encoder : Lavc58.18.100 libx264
    Side data:
    cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
    frame= 1598 fps=131 q=-1.0 Lsize= 1375kB time=00:01:08.16 bitrate= 165.3kbits/s dup=2 drop=1047 speed=5.57x
    video:455kB audio:883kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 2.787654%
    [aac @ 0x63a31c0] Qavg: 32520.934
    [libx264 @ 0x63a0d40] frame I:7 Avg QP:32.00 size: 5746
    [libx264 @ 0x63a0d40] frame P:1591 Avg QP:33.93 size: 267
    [libx264 @ 0x63a0d40] mb I I16..4: 100.0% 0.0% 0.0%
    [libx264 @ 0x63a0d40] mb P I16..4: 0.3% 0.0% 0.0% P16..4: 4.2% 0.0% 0.0% 0.0% 0.0% skip:95.5%
    [libx264 @ 0x63a0d40] coded y,uvDC,uvAC intra: 21.3% 18.9% 3.0% inter: 1.1% 0.5% 0.0%
    [libx264 @ 0x63a0d40] i16 v,h,dc,p: 54% 27% 11% 9%
    [libx264 @ 0x63a0d40] i8c dc,h,v,p: 69% 17% 10% 4%
    [libx264 @ 0x63a0d40] kb/s:58.22









    share|improve this question



























      0












      0








      0








      I am using FFMpeg to scale, pad and merge 2 videos and generate one mp4 file. I am using the following command which leads to an output file with no audio for few seconds in the middle of the second video. Also, there is a faint white border displayed for few seconds on the black frame that I am creating. Though there are no errors in the command but I am getting a warning "[swscaler @ 0x6987800] Warning: data is not aligned! This can lead to a speed loss".



      I checked other posts here and tried the solutions provided but it didn't work for me. It would be great if some one can help point out what I am missing.



      Thanks in advance.



      Here is the command:



      ffmpeg -i 1_a.opus -i 2_a.opus -itsoffset 0.024181 -i 01_v.webm -itsoffset 0.113192 -i 02_v.webm -filter_complex 
      "[1:a]adelay=15726.168|15726.168[a1];
      [0:a][a1]amix;
      [3:v]trim=0:15.726168,geq=0:128:128[silence];
      [3:v]fifo[3v];
      [silence][3v]concat[3_v_silence];
      [3_v_silence]scale=-1:240[3v_scaled_240];
      [3v_scaled_240]pad=width=320:height=240:x=(320-in_w)/2:y=(240-in_h)/2:color=black[3v_padded];
      [2:v]scale=-1:240[2v_scaled_240];
      [2v_scaled_240]pad=width=320:height=240:x=(320-in_w)/2:y=(240-in_h)/2:color=black[2v_padded];
      [2v_padded]fifo[2v];
      [2v][3v_padded]hstack[out_v];
      [out_v]pad=width=640:height=480:x=(640-in_w)/2:y=(480-in_h)/2:color=black"
      -crf 40 -preset ultrafast -y -r pal out.mp4


      Console output:



      ffmpeg version 4.0.2-static https://johnvansickle.com/ffmpeg/  Copyright (c) 2000-2018 the FFmpeg developers
      built with gcc 6.3.0 (Debian 6.3.0-18+deb9u1) 20170516
      configuration: --enable-gpl --enable-version3 --enable-static --disable-debug --disable-ffplay --disable-indev=sndio --disable-outdev=sndio --cc=gcc-6 --enable-fontconfig --enable-frei0r --enable-gnutls --enable-gray --enable-libaom --enable-libfribidi --enable-libass --enable-libvmaf --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librubberband --enable-libsoxr --enable-libspeex --enable-libvorbis --enable-libopus --enable-libtheora --enable-libvidstab --enable-libvo-amrwbenc --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzimg
      libavutil 56. 14.100 / 56. 14.100
      libavcodec 58. 18.100 / 58. 18.100
      libavformat 58. 12.100 / 58. 12.100
      libavdevice 58. 3.100 / 58. 3.100
      libavfilter 7. 16.100 / 7. 16.100
      libswscale 5. 1.100 / 5. 1.100
      libswresample 3. 1.100 / 3. 1.100
      libpostproc 55. 1.100 / 55. 1.100
      Input #0, ogg, from '1_a.opus':
      Duration: 00:01:03.82, start: -0.020000, bitrate: 37 kb/s
      Stream #0:0: Audio: opus, 48000 Hz, stereo, fltp
      Input #1, ogg, from '2_a.opus':
      Duration: 00:00:52.40, start: -0.020000, bitrate: 44 kb/s
      Stream #1:0: Audio: opus, 48000 Hz, stereo, fltp
      Input #2, matroska,webm, from '01_v.webm':
      Metadata:
      encoder : Lavf56.40.101
      Duration: 00:01:03.83, start: 0.000000, bitrate: 202 kb/s
      Stream #2:0: Video: vp8, yuv420p(progressive), 640x480, SAR 1:1 DAR 4:3, 333 fps, 333 tbr, 1k tbn, 1k tbc (default)
      Input #3, matroska,webm, from '02_v.webm':
      Metadata:
      encoder : Lavf56.40.101
      Duration: 00:00:52.34, start: 0.000000, bitrate: 200 kb/s
      Stream #3:0: Video: vp8, yuv420p(progressive), 480x640, SAR 1:1 DAR 3:4, 25 fps, 25 tbr, 1k tbn, 1k tbc (default)
      Stream mapping:
      Stream #0:0 (opus) -> amix:input0
      Stream #1:0 (opus) -> adelay
      Stream #2:0 (vp8) -> scale
      Stream #3:0 (vp8) -> trim
      Stream #3:0 (vp8) -> fifo
      amix -> Stream #0:0 (aac)
      pad -> Stream #0:1 (libx264)
      Press [q] to stop, [?] for help
      [swscaler @ 0x6484740] Warning: data is not aligned! This can lead to a speed loss
      [libx264 @ 0x63a0d40] using SAR=1/1
      [libx264 @ 0x63a0d40] using cpu capabilities: MMX2 SSE2Fast SSSE3 Cache64 SlowShuffle
      [libx264 @ 0x63a0d40] profile Constrained Baseline, level 3.0
      [libx264 @ 0x63a0d40] 264 - core 155 r2901 7d0ff22 - H.264/MPEG-4 AVC codec - Copyleft 2003-2018 - http://www.videolan.org/x264.html - options: cabac=0 ref=1 deblock=0:0:0 analyse=0:0 me=dia subme=0 psy=1 psy_rd=1.00:0.00 mixed_ref=0 me_range=16 chroma_me=1 trellis=1 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=0 threads=3 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=0 weightp=0 keyint=250 keyint_min=25 scenecut=0 intra_refresh=0 rc=crf mbtree=0 crf=40.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=0
      Output #0, mp4, to 'out.mp4':
      Metadata:
      encoder : Lavf58.12.100
      Stream #0:0: Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)
      Metadata:
      encoder : Lavc58.18.100 aac
      Stream #0:1: Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 640x480 [SAR 1:1 DAR 4:3], q=-1--1, 25 fps, 12800 tbn, 25 tbc (default)
      Metadata:
      encoder : Lavc58.18.100 libx264
      Side data:
      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
      frame= 1598 fps=131 q=-1.0 Lsize= 1375kB time=00:01:08.16 bitrate= 165.3kbits/s dup=2 drop=1047 speed=5.57x
      video:455kB audio:883kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 2.787654%
      [aac @ 0x63a31c0] Qavg: 32520.934
      [libx264 @ 0x63a0d40] frame I:7 Avg QP:32.00 size: 5746
      [libx264 @ 0x63a0d40] frame P:1591 Avg QP:33.93 size: 267
      [libx264 @ 0x63a0d40] mb I I16..4: 100.0% 0.0% 0.0%
      [libx264 @ 0x63a0d40] mb P I16..4: 0.3% 0.0% 0.0% P16..4: 4.2% 0.0% 0.0% 0.0% 0.0% skip:95.5%
      [libx264 @ 0x63a0d40] coded y,uvDC,uvAC intra: 21.3% 18.9% 3.0% inter: 1.1% 0.5% 0.0%
      [libx264 @ 0x63a0d40] i16 v,h,dc,p: 54% 27% 11% 9%
      [libx264 @ 0x63a0d40] i8c dc,h,v,p: 69% 17% 10% 4%
      [libx264 @ 0x63a0d40] kb/s:58.22









      share|improve this question
















      I am using FFMpeg to scale, pad and merge 2 videos and generate one mp4 file. I am using the following command which leads to an output file with no audio for few seconds in the middle of the second video. Also, there is a faint white border displayed for few seconds on the black frame that I am creating. Though there are no errors in the command but I am getting a warning "[swscaler @ 0x6987800] Warning: data is not aligned! This can lead to a speed loss".



      I checked other posts here and tried the solutions provided but it didn't work for me. It would be great if some one can help point out what I am missing.



      Thanks in advance.



      Here is the command:



      ffmpeg -i 1_a.opus -i 2_a.opus -itsoffset 0.024181 -i 01_v.webm -itsoffset 0.113192 -i 02_v.webm -filter_complex 
      "[1:a]adelay=15726.168|15726.168[a1];
      [0:a][a1]amix;
      [3:v]trim=0:15.726168,geq=0:128:128[silence];
      [3:v]fifo[3v];
      [silence][3v]concat[3_v_silence];
      [3_v_silence]scale=-1:240[3v_scaled_240];
      [3v_scaled_240]pad=width=320:height=240:x=(320-in_w)/2:y=(240-in_h)/2:color=black[3v_padded];
      [2:v]scale=-1:240[2v_scaled_240];
      [2v_scaled_240]pad=width=320:height=240:x=(320-in_w)/2:y=(240-in_h)/2:color=black[2v_padded];
      [2v_padded]fifo[2v];
      [2v][3v_padded]hstack[out_v];
      [out_v]pad=width=640:height=480:x=(640-in_w)/2:y=(480-in_h)/2:color=black"
      -crf 40 -preset ultrafast -y -r pal out.mp4


      Console output:



      ffmpeg version 4.0.2-static https://johnvansickle.com/ffmpeg/  Copyright (c) 2000-2018 the FFmpeg developers
      built with gcc 6.3.0 (Debian 6.3.0-18+deb9u1) 20170516
      configuration: --enable-gpl --enable-version3 --enable-static --disable-debug --disable-ffplay --disable-indev=sndio --disable-outdev=sndio --cc=gcc-6 --enable-fontconfig --enable-frei0r --enable-gnutls --enable-gray --enable-libaom --enable-libfribidi --enable-libass --enable-libvmaf --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librubberband --enable-libsoxr --enable-libspeex --enable-libvorbis --enable-libopus --enable-libtheora --enable-libvidstab --enable-libvo-amrwbenc --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzimg
      libavutil 56. 14.100 / 56. 14.100
      libavcodec 58. 18.100 / 58. 18.100
      libavformat 58. 12.100 / 58. 12.100
      libavdevice 58. 3.100 / 58. 3.100
      libavfilter 7. 16.100 / 7. 16.100
      libswscale 5. 1.100 / 5. 1.100
      libswresample 3. 1.100 / 3. 1.100
      libpostproc 55. 1.100 / 55. 1.100
      Input #0, ogg, from '1_a.opus':
      Duration: 00:01:03.82, start: -0.020000, bitrate: 37 kb/s
      Stream #0:0: Audio: opus, 48000 Hz, stereo, fltp
      Input #1, ogg, from '2_a.opus':
      Duration: 00:00:52.40, start: -0.020000, bitrate: 44 kb/s
      Stream #1:0: Audio: opus, 48000 Hz, stereo, fltp
      Input #2, matroska,webm, from '01_v.webm':
      Metadata:
      encoder : Lavf56.40.101
      Duration: 00:01:03.83, start: 0.000000, bitrate: 202 kb/s
      Stream #2:0: Video: vp8, yuv420p(progressive), 640x480, SAR 1:1 DAR 4:3, 333 fps, 333 tbr, 1k tbn, 1k tbc (default)
      Input #3, matroska,webm, from '02_v.webm':
      Metadata:
      encoder : Lavf56.40.101
      Duration: 00:00:52.34, start: 0.000000, bitrate: 200 kb/s
      Stream #3:0: Video: vp8, yuv420p(progressive), 480x640, SAR 1:1 DAR 3:4, 25 fps, 25 tbr, 1k tbn, 1k tbc (default)
      Stream mapping:
      Stream #0:0 (opus) -> amix:input0
      Stream #1:0 (opus) -> adelay
      Stream #2:0 (vp8) -> scale
      Stream #3:0 (vp8) -> trim
      Stream #3:0 (vp8) -> fifo
      amix -> Stream #0:0 (aac)
      pad -> Stream #0:1 (libx264)
      Press [q] to stop, [?] for help
      [swscaler @ 0x6484740] Warning: data is not aligned! This can lead to a speed loss
      [libx264 @ 0x63a0d40] using SAR=1/1
      [libx264 @ 0x63a0d40] using cpu capabilities: MMX2 SSE2Fast SSSE3 Cache64 SlowShuffle
      [libx264 @ 0x63a0d40] profile Constrained Baseline, level 3.0
      [libx264 @ 0x63a0d40] 264 - core 155 r2901 7d0ff22 - H.264/MPEG-4 AVC codec - Copyleft 2003-2018 - http://www.videolan.org/x264.html - options: cabac=0 ref=1 deblock=0:0:0 analyse=0:0 me=dia subme=0 psy=1 psy_rd=1.00:0.00 mixed_ref=0 me_range=16 chroma_me=1 trellis=1 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=0 threads=3 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=0 weightp=0 keyint=250 keyint_min=25 scenecut=0 intra_refresh=0 rc=crf mbtree=0 crf=40.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=0
      Output #0, mp4, to 'out.mp4':
      Metadata:
      encoder : Lavf58.12.100
      Stream #0:0: Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)
      Metadata:
      encoder : Lavc58.18.100 aac
      Stream #0:1: Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 640x480 [SAR 1:1 DAR 4:3], q=-1--1, 25 fps, 12800 tbn, 25 tbc (default)
      Metadata:
      encoder : Lavc58.18.100 libx264
      Side data:
      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
      frame= 1598 fps=131 q=-1.0 Lsize= 1375kB time=00:01:08.16 bitrate= 165.3kbits/s dup=2 drop=1047 speed=5.57x
      video:455kB audio:883kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 2.787654%
      [aac @ 0x63a31c0] Qavg: 32520.934
      [libx264 @ 0x63a0d40] frame I:7 Avg QP:32.00 size: 5746
      [libx264 @ 0x63a0d40] frame P:1591 Avg QP:33.93 size: 267
      [libx264 @ 0x63a0d40] mb I I16..4: 100.0% 0.0% 0.0%
      [libx264 @ 0x63a0d40] mb P I16..4: 0.3% 0.0% 0.0% P16..4: 4.2% 0.0% 0.0% 0.0% 0.0% skip:95.5%
      [libx264 @ 0x63a0d40] coded y,uvDC,uvAC intra: 21.3% 18.9% 3.0% inter: 1.1% 0.5% 0.0%
      [libx264 @ 0x63a0d40] i16 v,h,dc,p: 54% 27% 11% 9%
      [libx264 @ 0x63a0d40] i8c dc,h,v,p: 69% 17% 10% 4%
      [libx264 @ 0x63a0d40] kb/s:58.22






      audio video ffmpeg video-processing






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      edited Nov 21 '18 at 18:25







      Mayank

















      asked Nov 20 '18 at 21:54









      MayankMayank

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