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• Creating 8k Videos with ffmpeg

  24 juin 2015, par Jonsch

  I searched alot. I found solutions for putting mp4 files side by side and many more. Most of them use ffmpeg but none is working for 4raw files with CC I420.

  Commands like :

  C:\Users\jschumann\Documents\8k test\ffmpeg\ffmpeg-20150407-git-235589e-win64-st
  
  atic\bin>ffmpeg -y -i 1.raw -i 2.raw -i 3.raw -i 4.raw-filter_complex "[0:0]pad=
  
  iw*2:ih*2[a];[1:0]null[b];[2:0]null[c];[3:0]null[d];[a][b]overlay=w[x];[x][c]ove
  
  rlay=0:h[y];[y][d]overlay=w:h" o5.raw
  
  
  
  ffmpeg version N-71329-g235589e Copyright (c) 2000-2015 the FFmpeg developers
  
    built with gcc 4.9.2 (GCC)
  
    configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-av
  
  isynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enab
  
  le-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --
  
  enable-libdcadec --enable-libfreetype --enable-libgme --enable-libgsm --enable-l
  
  ibilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enab
  
  le-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --en
  
  able-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --ena
  
  ble-libtwolame --enable-libvidstab --enable-libvo-aacenc --enable-libvo-amrwbenc
  
   --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enabl
  
  e-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-lzma --ena
  
  ble-decklink --enable-zlib
  
    libavutil      54. 22.101 / 54. 22.101
  
    libavcodec     56. 34.100 / 56. 34.100
  
    libavformat    56. 30.100 / 56. 30.100
  
    libavdevice    56.  4.100 / 56.  4.100
  
    libavfilter     5. 13.101 /  5. 13.101
  
    libswscale      3.  1.101 /  3.  1.101
  
    libswresample   1.  1.100 /  1.  1.100
  
    libpostproc    53.  3.100 / 53.  3.100
  
  [image2 @ 00000000003460a0] Format image2 detected only with low score of 5, mis
  
  detection possible!
  
  [rawvideo @ 0000000000301c60] Invalid pixel format.
  
  [image2 @ 00000000003460a0] Failed to open codec in av_find_stream_info

  Results in errors and crashing of my system. I am really desperate to find a way to create a 8k yuv file for testing encoders.

  The files are simple 300 frame .yuv files. The colorspace is i420 and there is no audio.

• H.264 decoding error log from RTSP stream

  21 septembre 2016, par Tariq

  I am getting the following H264 error log. This log comes while decoding an RTSP video stream with help of FFMPEG. The picture displayed is blurred after 5/6 seconds. The picture would recover it from time to time. However, it remains blurred for most of the time.

  EDIT : Some FFMPEG discussion forums suggested to upgrade FFMPEG version to avoid these logs. I have updated the latest FFMPEG build of June 19, 2015.Still the log remains there and picture is still blurred.

  EDIT 2 : The RTSP stream is coming from a GANZ camera. This camera is connected through a LAN connection.

  [h264 @ 0abb2aa0] Cannot use next picture in error concealment
  
  [h264 @ 0abb2aa0] concealing 1933 DC, 1933 AC, 1933 MV errors in P frame
  
  [h264 @ 098e5c80] RTP: missed 131 packets
  
  [h264 @ 0abb3300] error while decoding MB 66 25, bytestream (-9)
  
  [h264 @ 0abb3300] Cannot use next picture in error concealment
  
  [h264 @ 0abb3300] concealing 1583 DC, 1583 AC, 1583 MV errors in P frame
  
  [h264 @ 098e5c80] RTP: missed 8 packets
  
  [h264 @ 0b113e40] error while decoding MB 54 30, bytestream (-11)
  
  [h264 @ 0b113e40] Cannot use next picture in error concealment
  
  [h264 @ 0b113e40] concealing 1195 DC, 1195 AC, 1195 MV errors in P frame
  
  [h264 @ 098e5c80] RTP: missed 118 packets
  
  [h264 @ 0ac79960] error while decoding MB 13 20, bytestream (-13)
  
  [h264 @ 0ac79960] Cannot use next picture in error concealment
  
  [h264 @ 0ac79960] concealing 2036 DC, 2036 AC, 2036 MV errors in P frame
  
  [h264 @ 098e5c80] RTP: missed 198 packets
  
  [h264 @ 0ad4f500] error while decoding MB 21 9, bytestream (-5)
  
  [h264 @ 0ad4f500] Cannot use next picture in error concealment
  
  [h264 @ 0ad4f500] concealing 2908 DC, 2908 AC, 2908 MV errors in P frame
  
  [h264 @ 098e5c80] RTP: missed 108 packets
  
  [h264 @ 0abb3300] error while decoding MB 1 14, bytestream (-5)
  
  [h264 @ 0abb3300] Cannot use next picture in error concealment
  
  [h264 @ 0abb3300] concealing 2528 DC, 2528 AC, 2528 MV errors in P frame
  
  [h264 @ 098e5c80] RTP: missed 106 packets
  
  [h264 @ 0b1149c0] error while decoding MB 12 5, bytestream (-7)
  
  [h264 @ 0b1149c0] Cannot use next picture in error concealment
  
  [h264 @ 0b1149c0] concealing 3237 DC, 3237 AC, 3237 MV errors in P frame
  
  [h264 @ 098e5c80] RTP: missed -65402 packets
  
  [h264 @ 0b1155a0] error while decoding MB 50 38, bytestream (-7)
  
  [h264 @ 0b1155a0] Cannot use next picture in error concealment
  
  [h264 @ 0b1155a0] concealing 559 DC, 559 AC, 559 MV errors in P frame
  
  [h264 @ 098e5c80] RTP: missed 150 packets
  
  [h264 @ 0af65740] error while decoding MB 48 31, bytestream (-15)
  
  [h264 @ 0af65740] Cannot use next picture in error concealment
  
  [h264 @ 0af65740] concealing 1121 DC, 1121 AC, 1121 MV errors in P frame
  
  [h264 @ 098e5c80] RTP: missed 4 packets
  
  [h264 @ 0ac79960] error while decoding MB 35 38, bytestream (-41)
  
  [h264 @ 0ac79960] Cannot use next picture in error concealment
  
  [h264 @ 0ac79960] concealing 574 DC, 574 AC, 574 MV errors in P frame

  I dumped the RTSP stream to an avi file using ffmpeg and there are no errors.
  C :\Users\Matlab>ffmpeg -i rtsp ://192.168.1.67/gnz_media/main 123.avi

  There are no H.264 decoding errors. Can anybody help with above decoding errors using ffmpeg api.

• FFMPEG command to crop and transpose video comes out zoomed in bad quality

  15 juillet 2015, par Brian

  I’m trying to convert an mp4 video with dimensions usually 960x720 into a sqaure 480:480 video but it comes out looking squished usually, the command is

  "-y -i %s -vf crop=480:480,transpose=%d -threads 5 -metadata:s:v rotate=0 -c:v libx264 -crf 27 -preset ultrafast -c:a copy -bsf:a aac_adtstoasc %s";

  Am I missing something, do I need to down scale first or something ?

  **EDIT adding full console output. The ffmpeg command is updated, but the goal still remains the same, take an arbitrary video and square crop it

  07-14 22:30:32.813: D/ffmpeg(30354): -y -i /data/data/com.myapp.app/cache:temp/i7h4ajm0nim1mbcnrqotvrhhsc.mp4 -vf scale=iw*sar:ih,transpose=1 -threads 5 -metadata:s:v rotate=0 -c:v libx264 -crf 27 -preset ultrafast -c:a copy -bsf:a aac_adtstoasc -aspect 1:1 /data/data/com.myapp.app/cache:temp/p1t3bhs0oa3lpqa67g5i9ninm9.ts
  
  07-14 22:30:32.903: D/ffmpeg(30354): new time reamining 9283
  
  07-14 22:30:32.913: D/FFmpeg(30354): Running publishing updates method
  
  07-14 22:30:35.963: D/ffmpeg(30354): WARNING: linker: /data/data/com.myapp.app/files/ffmpeg has text relocations. This is wasting memory and prevents security hardening. Please fix.
  
  07-14 22:30:35.963: D/ffmpeg(30354): ffmpeg version n2.4.2 Copyright (c) 2000-2014 the FFmpeg developers
  
  07-14 22:30:35.963: D/ffmpeg(30354):   built on Jun  3 2015 21:56:01 with gcc 4.8 (GCC)
  
  07-14 22:30:35.963: D/ffmpeg(30354):   configuration: --target-os=linux --cross-prefix=/Users/Brian1/development/ffmpeg-android/toolchain-android/bin/arm-linux-androideabi- --arch=arm --cpu=cortex-a8 --enable-runtime-cpudetect --sysroot=/Users/Brian1/development/ffmpeg-android/toolchain-android/sysroot --enable-pic --enable-small --enable-libx264 --enable-pthreads --disable-muxers --enable-muxer=mpegts --enable-muxer=mp4 --disable-demuxers --enable-demuxer=mpegts --enable-demuxer=mov --enable-demuxer=mpeg --enable-demuxer=mp4 --disable-debug --disable-decoders --enable-decoder=h264 --enable-decoder=aac --disable-devices --disable-encoders --enable-encoder=libx264 --disable-network --disable-ffserver --enable-version3 --enable-hardcoded-tables --disable-ffplay --disable-ffprobe --enable-gpl --enable-yasm --disable-doc --disable-shared --enable-static --pkg-config=/Users/Brian1/development/ffmpeg-android/ffmpeg-pkg-config --prefix=/Users/Brian1/development/ffmpeg-android/build/armeabi-v7a-neon --extra-cflags='-I/Users/Brian1/development/ffmpeg-android/toolchain-android/include -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all -mfpu=neon' --extra-ldflags='-L/Users/Brian1/development/ffmpeg-android/toolchain-android/lib -Wl,-z,relro -Wl,-z,now -pie' --extra-libs=-lm --extra-cxxflags=
  
  07-14 22:30:35.963: D/ffmpeg(30354):   libavutil      54.  7.100 / 54.  7.100
  
  07-14 22:30:35.963: D/ffmpeg(30354):   libavcodec     56.  1.100 / 56.  1.100
  
  07-14 22:30:35.963: D/ffmpeg(30354):   libavformat    56.  4.101 / 56.  4.101
  
  07-14 22:30:35.963: D/ffmpeg(30354):   libavdevice    56.  0.100 / 56.  0.100
  
  07-14 22:30:35.963: D/ffmpeg(30354):   libavfilter     5.  1.100 /  5.  1.100
  
  07-14 22:30:35.963: D/ffmpeg(30354):   libswscale      3.  0.100 /  3.  0.100
  
  07-14 22:30:35.963: D/ffmpeg(30354):   libswresample   1.  1.100 /  1.  1.100
  
  07-14 22:30:35.963: D/ffmpeg(30354):   libpostproc    53.  0.100 / 53.  0.100
  
  07-14 22:30:35.963: D/ffmpeg(30354): Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/data/data/com.myapp.app/cache:temp/i7h4ajm0nim1mbcnrqotvrhhsc.mp4':
  
  07-14 22:30:35.963: D/ffmpeg(30354):   Metadata:
  
  07-14 22:30:35.963: D/ffmpeg(30354):     major_brand     : mp42
  
  07-14 22:30:35.963: D/ffmpeg(30354):     minor_version   : 0
  
  07-14 22:30:35.963: D/ffmpeg(30354):     compatible_brands: isommp42
  
  07-14 22:30:35.963: D/ffmpeg(30354):     creation_time   : 2015-07-15 05:30:32
  
  07-14 22:30:35.963: D/ffmpeg(30354):   Duration: 00:00:02.75, start: 0.000000, bitrate: 9315 kb/s
  
  07-14 22:30:35.963: D/ffmpeg(30354):     Stream #0:0(eng): Video: h264 (avc1 / 0x31637661), yuv420p, 960x720, 10062 kb/s, 29.97 fps, 29.97 tbr, 90k tbn, 180k tbc (default)
  
  07-14 22:30:35.963: D/ffmpeg(30354):     Metadata:
  
  07-14 22:30:35.963: D/ffmpeg(30354):       rotate          : 90
  
  07-14 22:30:35.963: D/ffmpeg(30354):       creation_time   : 2015-07-15 05:30:32
  
  07-14 22:30:35.963: D/ffmpeg(30354):       handler_name    : VideoHandle
  
  07-14 22:30:35.963: D/ffmpeg(30354):     Side data:
  
  07-14 22:30:35.963: D/ffmpeg(30354):       displaymatrix: rotation of -90.00 degrees
  
  07-14 22:30:35.963: D/ffmpeg(30354):     Stream #0:1(eng): Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 151 kb/s (default)
  
  07-14 22:30:35.963: D/ffmpeg(30354):     Metadata:
  
  07-14 22:30:35.963: D/ffmpeg(30354):       creation_time   : 2015-07-15 05:30:32
  
  07-14 22:30:35.963: D/ffmpeg(30354):       handler_name    : SoundHandle
  
  07-14 22:30:35.963: D/ffmpeg(30354): [libx264 @ 0xb6808800] using SAR=4/3
  
  07-14 22:30:35.963: D/ffmpeg(30354): [libx264 @ 0xb6808800] using cpu capabilities: none!
  
  07-14 22:30:35.963: D/ffmpeg(30354): [libx264 @ 0xb6808800] profile Constrained Baseline, level 3.1
  
  07-14 22:30:35.963: D/ffmpeg(30354): [adts @ 0xb685b000] Using AVStream.codec.time_base as a timebase hint to the muxer is deprecated. Set AVStream.time_base instead.
  
  07-14 22:30:35.963: D/ffmpeg(30354): Output #0, mpegts, to '/data/data/com.myapp.app/cache:temp/p1t3bhs0oa3lpqa67g5i9ninm9.ts':
  
  07-14 22:30:35.963: D/ffmpeg(30354):   Metadata:
  
  07-14 22:30:35.963: D/ffmpeg(30354):     major_brand     : mp42
  
  07-14 22:30:35.963: D/ffmpeg(30354):     minor_version   : 0
  
  07-14 22:30:35.963: D/ffmpeg(30354):     compatible_brands: isommp42
  
  07-14 22:30:35.963: D/ffmpeg(30354):     encoder         : Lavf56.4.101
  
  07-14 22:30:35.963: D/ffmpeg(30354):     Stream #0:0(eng): Video: h264 (libx264), yuv420p, 720x960 [SAR 4:3 DAR 1:1], q=-1--1, 29.97 fps, 90k tbn, 29.97 tbc (default)
  
  07-14 22:30:35.963: D/ffmpeg(30354):     Metadata:
  
  07-14 22:30:35.963: D/ffmpeg(30354):       handler_name    : VideoHandle
  
  07-14 22:30:35.963: D/ffmpeg(30354):       creation_time   : 2015-07-15 05:30:32
  
  07-14 22:30:35.963: D/ffmpeg(30354):       rotate          : 0
  
  07-14 22:30:35.963: D/ffmpeg(30354):       encoder         : Lavc56.1.100 libx264
  
  07-14 22:30:35.963: D/ffmpeg(30354):     Stream #0:1(eng): Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo, 151 kb/s (default)
  
  07-14 22:30:35.963: D/ffmpeg(30354):     Metadata:
  
  07-14 22:30:35.963: D/ffmpeg(30354):       creation_time   : 2015-07-15 05:30:32
  
  07-14 22:30:35.963: D/ffmpeg(30354):       handler_name    : SoundHandle
  
  07-14 22:30:35.963: D/ffmpeg(30354): Stream mapping:
  
  07-14 22:30:35.963: D/ffmpeg(30354):   Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
  
  07-14 22:30:35.963: D/ffmpeg(30354):   Stream #0:1 -> #0:1 (copy)
  
  07-14 22:30:35.963: D/ffmpeg(30354): Press [q] to stop, [?] for help
  
  07-14 22:30:35.963: D/ffmpeg(30354): frame=   17 fps=0.0 q=27.0 size=       0kB time=00:00:00.36 bitrate=   0.0kbits/s    
  
  07-14 22:30:35.963: D/ffmpeg(30354): frame=   33 fps= 32 q=27.0 size=     164kB time=00:00:01.15 bitrate=1163.1kbits/s    
  
  07-14 22:30:35.963: D/ffmpeg(30354): frame=   46 fps= 30 q=29.0 size=     213kB time=00:00:01.33 b