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• Android ffmpeg very slow to transcode

  23 mars 2016, par Nat

  In Android phones (different phone models) it takes ffmpeg 5x the length of the video to transcode. A 1-minute video takes near 5 minutes to transcode. I have tried the following to improve performance and nothing has helped,

  -b:v 16K to 1024K
  
  -s 180x120 to 1920x1080
  
  -preset ultrafast
  
  -profile:v baseline
  
  -r 24 to 100
  
  maxrate 64K to 512K
  
  rate 64K to 512K
  
  -threads 0 to 16

  Nothing seems to help. Of course, some of them bring the speed up to 3x from 5x.

  Please help as I have run out of options.

  My current code is,

  ffmpeg -y -i /storage/emulated/0/DCIM/Camera/VID_20150819_220414.mp4 -strict experimental -s 480x270 -vcodec libx264 -r 24 -c:a copy /storage/emulated/0/Android/data/<myapp>/cache/VID_-K-qMCldTSzZomKakNzq.mp4 
  
  </myapp>

  Console log -----

  configuration: --arch=arm --cpu=cortex-a8 --target-os=linux --enable-runtime-cpudetect --prefix=/data/data/info.guardianproject.ffmpeg/app_opt --enable-pic --disable-shared --enable-static --cross-prefix=/home/n8fr8/dev/android/ndk/toolchains/arm-linux-androideabi-4.6/prebuilt/linux-x86_64/bin/arm-linux-androideabi- --sysroot=/home/n8fr8/dev/android/ndk/platforms/android-16/arch-arm --extra-cflags='-I../x264 -mfloat-abi=softfp -mfpu=neon -fPIE -pie' --extra-ldflags='-L../x264 -fPIE -pie' --enable-version3 --enable-gpl --disable-doc --enable-yasm --enable-decoders --enable-encoders --enable-muxers --enable-demuxers --enable-parsers --enable-protocols --enable-filters --enable-avresample --enable-libfreetype --disable-indevs --enable-indev=lavfi --disable-outdevs --enable-hwaccels --enable-ffmpeg --disable-ffplay --disable-ffprobe --disable-ffserver --disable-network --enable-libx264 --enable-zlib
  
  libavutil      51. 54.100 / 51. 54.100
  
  10-05 10:29:22.288: V/VideoEditor(7655): shellOut:   libavcodec     54. 23.100 / 54. 23.100
  
  10-05 10:29:22.288: V/VideoEditor(7655): shellOut:   libavformat    54.  6.100 / 54.  6.100
  
  10-05 10:29:22.288: V/VideoEditor(7655): shellOut:   libavdevice    54.  0.100 / 54.  0.100
  
  10-05 10:29:22.288: V/VideoEditor(7655): shellOut:   libavfilter     2. 77.100 /  2. 77.100
  
  10-05 10:29:22.288: V/VideoEditor(7655): shellOut:   libswscale      2.  1.100 /  2.  1.100
  
  10-05 10:29:22.288: V/VideoEditor(7655): shellOut:   libswresample   0. 15.100 /  0. 15.100
  
  10-05 10:29:22.288: V/VideoEditor(7655): shellOut:   libpostproc    52.  0.100 / 52.  0.100
  
  10-05 10:29:22.740: V/VideoEditor(7655): shellOut: Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/storage/emulated/0/DCIM/Camera/VID_20151002_152817.mp4':
  
  10-05 10:29:22.740: V/VideoEditor(7655): shellOut:   Metadata:
  
  10-05 10:29:22.741: V/VideoEditor(7655): shellOut:     major_brand     : mp42
  
  10-05 10:29:22.741: V/VideoEditor(7655): shellOut:     minor_version   : 0
  
  10-05 10:29:22.742: V/VideoEditor(7655): shellOut:     compatible_brands: isommp42
  
  10-05 10:29:22.742: V/VideoEditor(7655): shellOut:     creation_time   : 2015-10-02 22:29:32
  
  10-05 10:29:22.743: V/VideoEditor(7655): shellOut:   Duration: 00:01:14.13, start: 0.000000, bitrate: 17112 kb/s
  
  10-05 10:29:22.745: V/VideoEditor(7655): shellOut:     Stream #0:0(eng): Video: h264 (Baseline) (avc1 / 0x31637661), yuv420p, 1920x1080, 16991 kb/s, SAR 65536:65536 DAR 16:9, 29.84 fps, 29.85 tbr, 90k tbn, 180k tbc
  
  10-05 10:29:22.745: V/VideoEditor(7655): shellOut:     Metadata:
  
  10-05 10:29:22.747: V/VideoEditor(7655): shellOut:       creation_time   : 2015-10-02 22:29:32
  
  10-05 10:29:22.748: V/VideoEditor(7655): shellOut:       handler_name    : VideoHandle
  
  10-05 10:29:22.749: V/VideoEditor(7655): shellOut:     Stream #0:1(eng): Audio: aac (mp4a / 0x6134706D), 48000 Hz, mono, s16, 96 kb/s
  
  10-05 10:29:22.749: V/VideoEditor(7655): shellOut:     Metadata:
  
  10-05 10:29:22.750: V/VideoEditor(7655): shellOut:       creation_time   : 2015-10-02 22:29:32
  
  10-05 10:29:22.751: V/VideoEditor(7655): shellOut:       handler_name    : SoundHandle
  
  10-05 10:29:22.760: V/VideoEditor(7655): shellOut: [buffer @ 0xb5caa0a0] w:1920 h:1080 pixfmt:yuv420p tb:1/90000 sar:65536/65536 sws_param:flags=2
  
  10-05 10:29:22.760: V/VideoEditor(7655): shellOut: [buffersink @ 0xb5caa0d0] No opaque field provided
  
  10-05 10:29:22.802: V/VideoEditor(7655): shellOut: [scale @ 0xb5caa100] w:1920 h:1080 fmt:yuv420p sar:65536/65536 -> w:720 h:404 fmt:yuv420p sar:404/405 flags:0x4
  
  10-05 10:29:22.803: V/VideoEditor(7655): shellOut: [libx264 @ 0xb5c28000] using SAR=1/1
  
  10-05 10:29:22.818: V/VideoEditor(7655): shellOut: [libx264 @ 0xb5c28000] using cpu capabilities: ARMv6 NEON
  
  10-05 10:29:22.904: V/VideoEditor(7655): shellOut: [libx264 @ 0xb5c28000] profile High, level 3.0
  
  shellOut: [libx264 @ 0xb5c28000] 264 - core 125 r680+1521 37be552 - H.264/MPEG-4 AVC codec - Copyleft 2003-2012 - 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=1 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=24 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=abr mbtree=1 bitrate=512 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
  
  10-05 10:29:22.909: V/VideoEditor(7655): shellOut: Output #0, mp4, to '/storage/emulated/0/Android/data/com.myapp/cache/VID_-K-t2E4MtV_RTw4a1JXb.mp4':
  
  10-05 10:29:22.910: V/VideoEditor(7655): shellOut:   Metadata:
  
  10-05 10:29:22.911: V/VideoEditor(7655): shellOut:     major_brand     : mp42
  
  10-05 10:29:22.912: V/VideoEditor(7655): shellOut:     minor_version   : 0
  
  10-05 10:29:22.913: V/VideoEditor(7655): shellOut:     compatible_brands: isommp42
  
  10-05 10:29:22.913: V/VideoEditor(7655): shellOut:     creation_time   : 2015-10-02 22:29:32
  
  10-05 10:29:22.914: V/VideoEditor(7655): shellOut:     encoder         : Lavf54.6.100
  
  10-05 10:29:22.916: V/VideoEditor(7655): shellOut:     Stream #0:0(eng): Video: h264 (![0][0][0] / 0x0021), yuv420p, 720x404 [SAR 1:1 DAR 180:101], q=-1--1, 512 kb/s, 24 tbn, 24 tbc
  
  10-05 10:29:22.916: V/VideoEditor(7655): shellOut:     Metadata:
  
  10-05 10:29:22.917: V/VideoEditor(7655): shellOut:       creation_time   : 2015-10-02 22:29:32
  
  10-05 10:29:22.918: V/VideoEditor(7655): shellOut:       handler_name    : VideoHandle
  
  10-05 10:29:22.919: V/VideoEditor(7655): shellOut:     Stream #0:1(eng): Audio: aac (@[0][0][0] / 0x0040), 48000 Hz, mono, 96 kb/s
  
  10-05 10:29:22.920: V/VideoEditor(7655): shellOut:     Metadata:
  
  10-05 10:29:22.921: V/VideoEditor(7655): shellOut:       creation_time   : 2015-10-02 22:29:32
  
  10-05 10:29:22.922: V/VideoEditor(7655): shellOut:       handler_name    : SoundHandle
  
  10-05 10:29:22.922: V/VideoEditor(7655): shellOut: Stream mapping:
  
  10-05 10:29:22.923: V/VideoEditor(7655): shellOut:   Stream #0:0 -> #0:0 (h264 -> libx264)
  
  10-05 10:29:22.924: V/VideoEditor(7655): shellOut:   Stream #0:1 -> #0:1 (copy)
  
  10-05 10:29:22.924: V/VideoEditor(7655): shellOut: Press [q] to stop, [?] for help
  
  10-05 10:29:23.637: V/VideoEditor(7655): shellOut: frame=    6 fps=0.0 q=0.0 size=       0kB time=00:00:00.00 bitrate=   0.0kbits/s    
  
  10-05 10:29:24.205: V/VideoEditor(7655): shellOut: frame=   12 fps= 10 q=0.0 size=       0kB time=00:00:00.00 bitrate=   0.0kbits/s    
  
  10-05 10:29:24.735: I/chromium(7655): [INFO:CONSOLE(25)] "No Content-Security-Policy meta tag found. Please add one when using the cordova-plugin-whitelist plugin.", source: file:///android_asset/www/plugins/cordova-plugin-whitelist/whitelist.js (25)
  
  10-05 10:29:24.756: V/VideoEditor(7655): shellOut: frame=   17 fps=9.8 q=0.0 size=       0kB time=00:00:00.00 bitrate=   0.0kbits/s dup=0 drop=1    
  
  10-05 10:29:25.327: V/VideoEditor(7655): shellOut: frame=   22 fps=9.5 q=0.0 size=       0kB time=00:00:00.00 bitrate=   0.0kbits/s dup=0 drop=2    
  
  10-05 10:29:25.904: V/VideoEditor(7655): shellOut: frame=   26 fps=9.1 q=0.0 size=       0kB time=00:00:00.00 bitrate=   0.0kbits/s dup=0 drop=4    

  ---

• FFMPEG - adding a nullsrc causes my script to report "1000 duplicate frames"

  14 juin 2020, par rossmcm

  I'm trying to add coloured rectangle highlights to a video, appearing at different locations and times. The highlights are on a 6x6 grid of 320x180 rectangles.

  



  Originally I didn't have the nullsrc=size=1920x1080 thinking that it would start with an empty image, but it seems that that causes it to make assumptions about where the input is coming from. So I added the nullsrc=size=1920x1080 to start with a transparent 1920x1080 image but this command returns a warning that 1000 duplicate frames have been produced and it keeps going past the end of the input video with no signs of stopping.

  



  ffmpeg -y \       
  -i "Input.mp4" \           
  -filter_complex \ 
 "nullsrc=size=1920x1080, drawbox=x=(3-1)*320:y=(3-1)*180:w=320:h=180:t=7:c=cyan,   fade=in:st=10:d=1:alpha=1, fade=out:st=40:d=1:alpha=1[tmp1]; \
  nullsrc=size=1920x1080, drawbox=x=(4-1)*320:y=(4-1)*180:w=320:h=180:t=7:c=blue,   fade=in:st=20:d=1:alpha=1, fade=out:st=50:d=1:alpha=1[tmp2]; \
  nullsrc=size=1920x1080, drawbox=x=(5-1)*320:y=(5-1)*180:w=320:h=180:t=7:c=green,  fade=in:st=30:d=1:alpha=1, fade=out:st=60:d=1:alpha=1[tmp3]; \
  nullsrc=size=1920x1080, drawbox=x=(6-1)*320:y=(6-1)*180:w=320:h=180:t=7:c=yellow, fade=in:st=40:d=1:alpha=1, fade=out:st=70:d=1:alpha=1[tmp4]; \
  [tmp1][tmp2] overlay=0:0[ovr1]; \ 
  [tmp3][tmp4] overlay=0:0[ovr2]; \ 
  [ovr1][ovr2] overlay=0:0[boxes]; \ 
  [0:v][boxes] overlay=0:0" \        
  "Output.mp4"


  



  The input video is around 01:45 long. Log of run :

  



  ffmpeg -y        -loglevel verbose       -i "Input.mp4"          -filter_complex " nullsrc=size=1920x1080, drawbox=x=(3-1)*320:y=(3-1)*180:w=320:h=180:t=7:c=cyan,   fade=in:st=10:d=1:alpha=1, fade=out:st=40:d=1:alpha=1[tmp1]; nullsrc=size=1920x1080, drawbox=x  =(4-1)*320:y=(4-1)*180:w=320:h=180:t=7:c=blue,   fade=in:st=20:d=1:alpha=1, fade=out:st=50:d=1:alpha=1[tmp2]; nullsrc=size=1920x1080, drawbox=x=(5-1)*320:y=(5-1)*180:w=320:h=180:t=7:c=green,  fa
de=in:st=30:d=1:alpha=1, fade=out:st=60:d=1:alpha=1[tmp3]; nullsrc=size=1920x1080, drawbox=x=(6-1)*320:y=(6-1)*180:w=320:h=180:t=7:c=yellow, fade=in:st=40:d=1:alpha=1, fade=out:st=70:d=1:alpha=1[tmp4]; [tmp1][tmp2] overlay=0:0[ovr1]; [tmp3][tmp4] overlay=0:0[ovr2]; [ovr1][ovr2] overlay=0:0[boxes]; [0:v][boxes] overlay=0:0"      "Output.mp4"
ffmpeg version 3.4 Copyright (c) 2000-2017 the FFmpeg developers
  built with gcc 7.2.0 (GCC)
  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-bzlib --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libfreetype --enable-libmp3lame --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-libvid
stab --enable-libvorbis --enable-cuda --enable-cuvid --enable-d3d11va --enable-nvenc --enable-dxva2 --enable-avisynth --enable-libmfx
  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
  libswscale      4.  8.100 /  4.  8.100
  libswresample   2.  9.100 /  2.  9.100
  libpostproc    54.  7.100 / 54.  7.100
[h264 @ 000001df2b623ea0] Reinit context to 1920x1088, pix_fmt: yuv420p
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'Input.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf58.29.100
  Duration: 00:01:48.67, start: 0.000000, bitrate: 1825 kb/s
    Stream #0:0(und): Video: h264 (High), 1 reference frame (avc1 / 0x31637661), yuv420p(left), 1920x1080 (1920x1088) [SAR 1:1 DAR 16:9], 1693 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)
    Metadata:
      handler_name    : VideoHandler
    Stream #0:1(und): Audio: mp3 (mp4a / 0x6134706D), 44100 Hz, stereo, s16p, 127 kb/s (default)
    Metadata:
      handler_name    : SoundHandler
[Parsed_nullsrc_0 @ 000001df2b61af00] size:1920x1080 rate:25/1 duration:-1.000000 sar:1/1
[Parsed_fade_2 @ 000001df2b6a6860] type:in start_time:10.000000 duration:1.000000 alpha:1
[Parsed_fade_3 @ 000001df2b9ddec0] type:out start_time:40.000000 duration:1.000000 alpha:1
[Parsed_nullsrc_4 @ 000001df2bc00560] size:1920x1080 rate:25/1 duration:-1.000000 sar:1/1
[Parsed_fade_6 @ 000001df29fe6780] type:in start_time:20.000000 duration:1.000000 alpha:1
[Parsed_fade_7 @ 000001df29fe6840] type:out start_time:50.000000 duration:1.000000 alpha:1
[Parsed_nullsrc_8 @ 000001df2b642dc0] size:1920x1080 rate:25/1 duration:-1.000000 sar:1/1
[Parsed_fade_10 @ 000001df2b6442a0] type:in start_time:30.000000 duration:1.000000 alpha:1
[Parsed_fade_11 @ 000001df2b6444e0] type:out start_time:60.000000 duration:1.000000 alpha:1
[Parsed_nullsrc_12 @ 000001df2b62d000] size:1920x1080 rate:25/1 duration:-1.000000 sar:1/1
[Parsed_fade_14 @ 000001df2b62d580] type:in start_time:40.000000 duration:1.000000 alpha:1
[Parsed_fade_15 @ 000001df2b62ddc0] type:out start_time:70.000000 duration:1.000000 alpha:1
Stream mapping:
  Stream #0:0 (h264) -> overlay:main (graph 0)
  overlay (graph 0) -> Stream #0:0 (libx264)
  Stream #0:1 -> #0:1 (mp3 (native) -> aac (native))
Press [q] to stop, [?] for help
[h264 @ 000001df2b8e5040] Reinit context to 1920x1088, pix_fmt: yuv420p
[graph_1_in_0_1 @ 000001df2b62e100] tb:1/44100 samplefmt:s16p samplerate:44100 chlayout:0x3
[format_out_0_1 @ 000001df2b62e5e0] auto-inserting filter 'auto_resampler_0' between the filter 'Parsed_anull_0' and the filter 'format_out_0_1'
[auto_resampler_0 @ 000001df2b62dd00] ch:2 chl:stereo fmt:s16p r:44100Hz -> ch:2 chl:stereo fmt:fltp r:44100Hz
[Parsed_nullsrc_0 @ 000001df2b62e440] size:1920x1080 rate:25/1 duration:-1.000000 sar:1/1
[Parsed_fade_2 @ 000001df2b62df60] type:in start_time:10.000000 duration:1.000000 alpha:1
[Parsed_fade_3 @ 000001df2b62e6c0] type:out start_time:40.000000 duration:1.000000 alpha:1
[Parsed_nullsrc_4 @ 000001df2b62d9c0] size:1920x1080 rate:25/1 duration:-1.000000 sar:1/1
[Parsed_fade_6 @ 000001df2b62e520] type:in start_time:20.000000 duration:1.000000 alpha:1
[Parsed_fade_7 @ 000001df2b62d8e0] type:out start_time:50.000000 duration:1.000000 alpha:1
[Parsed_nullsrc_8 @ 000001df2b62e1e0] size:1920x1080 rate:25/1 duration:-1.000000 sar:1/1
[Parsed_fade_10 @ 000001df2b62e2a0] type:in start_time:30.000000 duration:1.000000 alpha:1
[Parsed_fade_11 @ 000001df2b62e380] type:out start_time:60.000000 duration:1.000000 alpha:1
[Parsed_nullsrc_12 @ 000001df2b62dc20] size:1920x1080 rate:25/1 duration:-1.000000 sar:1/1
[Parsed_fade_14 @ 000001df2b816f60] type:in start_time:40.000000 duration:1.000000 alpha:1
[Parsed_fade_15 @ 000001df2b817ac0] type:out start_time:70.000000 duration:1.000000 alpha:1
[graph 0 input from stream 0:0 @ 000001df2b817ba0] w:1920 h:1080 pixfmt:yuv420p tb:1/15360 fr:30/1 sar:1/1 sws_param:flags=2
[Parsed_drawbox_1 @ 000001df2b62da80] x:640 y:360 w:320 h:180 color:0xA9A610FF
[Parsed_drawbox_5 @ 000001df2b62e780] x:960 y:540 w:320 h:180 color:0x29F06EFF
[Parsed_overlay_16 @ 000001df2b817860] main w:1920 h:1080 fmt:yuva420p overlay w:1920 h:1080 fmt:yuva420p
[Parsed_overlay_16 @ 000001df2b817860] [framesync @ 000001df2b815348] Selected 1/25 time base
[Parsed_overlay_16 @ 000001df2b817860] [framesync @ 000001df2b815348] Sync level 2
[Parsed_drawbox_9 @ 000001df2b62db60] x:1280 y:720 w:320 h:180 color:0x515B51FF
[Parsed_drawbox_13 @ 000001df2b818be0] x:1600 y:900 w:320 h:180 color:0xD21092FF
[Parsed_overlay_17 @ 000001df2b816d00] main w:1920 h:1080 fmt:yuva420p overlay w:1920 h:1080 fmt:yuva420p
[Parsed_overlay_17 @ 000001df2b816d00] [framesync @ 000001df2b815e48] Selected 1/25 time base
[Parsed_overlay_17 @ 000001df2b816d00] [framesync @ 000001df2b815e48] Sync level 2
[Parsed_overlay_18 @ 000001df2b8183c0] main w:1920 h:1080 fmt:yuva420p overlay w:1920 h:1080 fmt:yuva420p
[Parsed_overlay_18 @ 000001df2b8183c0] [framesync @ 000001df2b815668] Selected 1/25 time base
[Parsed_overlay_18 @ 000001df2b8183c0] [framesync @ 000001df2b815668] Sync level 2
[Parsed_overlay_19 @ 000001df2b817d40] main w:1920 h:1080 fmt:yuv420p overlay w:1920 h:1080 fmt:yuva420p
[Parsed_overlay_19 @ 000001df2b817d40] [framesync @ 000001df2b816488] Selected 1/76800 time base
[Parsed_overlay_19 @ 000001df2b817d40] [framesync @ 000001df2b816488] Sync level 2
[libx264 @ 000001df2b62cd40] using SAR=1/1
[libx264 @ 000001df2b62cd40] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
[libx264 @ 000001df2b62cd40] profile High, level 4.0
[libx264 @ 000001df2b62cd40] 264 - core 152 r2851 ba24899 - 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=12 lookahead_threads=2 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 weigh
tb=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 'Output.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf57.83.100
    Stream #0:0: Video: h264 (libx264), 1 reference frame (avc1 / 0x31637661), yuv420p(left), 1920x1080 [SAR 1:1 DAR 16:9], q=-1--1, 30 fps, 15360 tbn, 30 tbc (default)
    Metadata:
      encoder         : Lavc57.107.100 libx264
    Side data:
      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, delay 1024, 128 kb/s (default)
    Metadata:
      handler_name    : SoundHandler
      encoder         : Lavc57.107.100 aac
[Parsed_overlay_19 @ 000001df2b817d40] [framesync @ 000001df2b816488] Sync level 1speed=0.78x
Past duration 0.800774 too large
*** 1 dup!5 fps= 24 q=29.0 size=   21760kB time=00:01:46.86 bitrate=1668.0kbits/s speed=0.78x
    Last message repeated 1 times
*** 1 dup!8 fps= 24 q=29.0 size=   21760kB time=00:01:47.30 bitrate=1661.3kbits/s dup=2 drop=0 speed=0.78x
    Last message repeated 2 times
*** 1 dup!3 fps= 24 q=29.0 size=   21760kB time=00:01:47.80 bitrate=1653.6kbits/s dup=5 drop=0 speed=0.781x
    Last message repeated 1 times

...

    Last message repeated 2 times
*** 1 dup!3 fps= 25 q=29.0 size=   27392kB time=00:05:05.80 bitrate= 733.8kbits/s dup=995 drop=0 speed=0.832x
    Last message repeated 1 times
*** 1 dup!6 fps= 25 q=29.0 size=   27392kB time=00:05:06.23 bitrate= 732.8kbits/s dup=997 drop=0 speed=0.832x
    Last message repeated 1 times
*** 1 dup!0 fps= 25 q=29.0 size=   27392kB time=00:05:06.70 bitrate= 731.6kbits/s dup=999 drop=0 speed=0.832x
    Last message repeated 1 times
More than 1000 frames duplicated
*** 1 dup!3 fps= 25 q=29.0 size=   27392kB time=00:05:07.13 bitrate= 730.6kbits/s dup=1001 drop=0 speed=0.832x
    Last message repeated 2 times
*** 1 dup!8 fps= 25 q=29.0 size=   27392kB time=00:05:07.63 bitrate= 729.4kbits/s dup=1004 drop=0 speed=0.832x
    Last message repeated 1 times
... 
*** 1 dup!9 fps= 25 q=29.0 size=   27904kB time=00:05:18.66 bitrate= 717.3kbits/s dup=1059 drop=0 speed=0.834x
    Last message repeated 1 times
*** 1 dup!3 fps= 25 q=29.0 size=   27904kB time=00:05:19.13 bitrate= 716.3kbits/s dup=1061 drop=0 speed=0.834x
frame= 9635 fps= 25 q=-1.0 Lsize=   28364kB time=00:05:21.06 bitrate= 723.7kbits/s dup=1062 drop=0 speed=0.837x
video:26539kB audio:1637kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.669889%
Input file #0 (Input.mp4):
  Input stream #0:0 (video): 3260 packets read (23006797 bytes); 3260 frames decoded;
  Input stream #0:1 (audio): 4025 packets read (1682285 bytes); 4025 frames decoded (4636800 samples);
  Total: 7285 packets (24689082 bytes) demuxed
Output file #0 (Output.mp4):
  Output stream #0:0 (video): 9635 frames encoded; 9635 packets muxed (27175566 bytes);
  Output stream #0:1 (audio): 4529 frames encoded (4636800 samples); 4530 packets muxed (1676214 bytes);
  Total: 14165 packets (28851780 bytes) muxed
[libx264 @ 000001df2b62cd40] frame I:39    Avg QP:16.49  size:213954
[libx264 @ 000001df2b62cd40] frame P:2446  Avg QP:17.77  size:  6277
[libx264 @ 000001df2b62cd40] frame B:7150  Avg QP:30.38  size:   486
[libx264 @ 000001df2b62cd40] consecutive B-frames:  0.8%  0.8%  0.1% 98.3%
[libx264 @ 000001df2b62cd40] mb I  I16..4: 13.2% 43.0% 43.8%
[libx264 @ 000001df2b62cd40] mb P  I16..4:  0.2%  0.2%  0.1%  P16..4:  7.1%  3.3%  1.7%  0.0%  0.0%    skip:87.5%
[libx264 @ 000001df2b62cd40] mb B  I16..4:  0.0%  0.0%  0.0%  B16..8:  4.3%  0.1%  0.0%  direct: 0.0%  skip:95.5%  L0:41.9% L1:56.1% BI: 2.0%
[libx264 @ 000001df2b62cd40] 8x8 transform intra:44.1% inter:65.8%
[libx264 @ 000001df2b62cd40] coded y,uvDC,uvAC intra: 71.3% 83.5% 52.5% inter: 1.1% 1.5% 0.0%
[libx264 @ 000001df2b62cd40] i16 v,h,dc,p: 31% 28%  4% 38%
[libx264 @ 000001df2b62cd40] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 28% 20% 10%  6%  6%  7%  7%  8%  8%
[libx264 @ 000001df2b62cd40] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 33% 28%  7%  4%  6%  6%  6%  5%  5%
[libx264 @ 000001df2b62cd40] i8c dc,h,v,p: 34% 27% 28% 11%
[libx264 @ 000001df2b62cd40] Weighted P-Frames: Y:0.0% UV:0.0%
[libx264 @ 000001df2b62cd40] ref P L0: 71.1% 14.9% 10.6%  3.4%
[libx264 @ 000001df2b62cd40] ref B L0: 93.3%  5.9%  0.8%
[libx264 @ 000001df2b62cd40] ref B L1: 97.8%  2.2%
[libx264 @ 000001df2b62cd40] kb/s:676.90
[aac @ 000001df2b6a5620] Qavg: 1165.766
Exiting normally, received signal 2.
Terminate batch job (Y/N)? y


  


• Q. FFMPEG - linux (Rasberry pi 4- Raspbian)- FFMPEG av_read_frame error

  5 juin 2020, par KNS

  User environment

  



  -Raspberry Pi 4B 4G x2

  



  -arm32 & arm64

  



  -OS : Raspbian

  



  -gcc (Raspbian 8.3.0-6+rpi1) 8.3.0

  



  -ffmpeg version 4.1.4-1+rpt7 deb10u1
 built with gcc 8 (Raspbian 8.3.0-6+rpi1)

  



  -IDE-visual studio 2017-ssh connetction

  



  Good morning. I have a question and post it.

  



  When Raspbian is installed, the installed FFMPEG library is used.

  



  I want to output a video display - file encoded in h264 using gtk3.0.

  



  When I open the video file & find the codec and try to read the frame,
I get an error and I'm asking.Error symptoms

  



  

  1. AVPacket struct memory padding ? error

  


  



  2.AVPacket-data error:Cannot access memory at address 0xxxxxxxxxxxx>

  



  

  3. AVPacket-stream_index value error- The stream_index and flags values ​​seem to have been reversed.

  


  



  my source code and error photos are attached.
Thank you.

  



  case 1 stream_index error (flags value ->stream_index)

  



  enter image description here

  



  case 2 data memory access error

  



  enter image description here

  



  typedef struct _struMovContext2
{
AVFormatContext*    pFormatCtx;
AVCodecContext*     pVCodecCtx;
AVCodecContext*     pACodecCtx;
AVCodec*            pVCodec;
AVCodec*            pACodec;
int                 nVStreamIndex;
int                 nAStreamIndex;
struct SwsContext*  pSwsCtx;
GtkWidget*          pImage;
pthread_t           tID;    
}MovContext2;

static MovContext2      Ctx;

static void pixmap_destroy_nf(guchar *pixels, gpointer data)
{
    printf("Destroy pixmap - not sure how\n");
}

static void* PlayBackGround(void* pData)
{
MovContext2*    pCtx = NULL;
GdkPixbuf*      pixbuf = NULL;
GError*         error = NULL;   
int             nFrameWidth, nFrameHeight;
int             nFrameEos = 0;
AVFrame*        pFrame = NULL;
AVFrame*        pPicture_RGB = NULL;
AVPacket        packet;
uint8_t*        pBuffer = NULL;

cairo_surface_t*    surface = NULL;
cairo_t*            cr = NULL;

//if ((pCtx = static_cast(pData)) == NULL)
pCtx = &Ctx;
if(pCtx == NULL)
{
    av_log(NULL, AV_LOG_ERROR, "Couldn't get context struct - Data nullpointer");
    return NULL;
}

printf("In Thread - PlayBackGround\n");


if ((pFrame = av_frame_alloc()) == NULL)
{
    av_log(NULL, AV_LOG_ERROR, "Couldn't alloc frame");
    return NULL;
}

if ((pPicture_RGB = av_frame_alloc()) == NULL)
{
    av_log(NULL, AV_LOG_ERROR, "Couldn't alloc Picture RGB");
    return NULL;
}

if ((pBuffer = (uint8_t*)malloc(avpicture_get_size(AV_PIX_FMT_RGB24, 1920, 1080))) == NULL)
{
    av_log(NULL, AV_LOG_ERROR, "Couldn't malloc data buffer");
    return NULL;
}
avpicture_fill((AVPicture*)pPicture_RGB, pBuffer, AV_PIX_FMT_RGB24, 1920, 1080);*/

av_init_packet(&packet);    
packet.data = NULL;
packet.size = 0;

//packet = *av_packet_alloc();

while (av_read_frame(pCtx->pFormatCtx, &packet) >= 0)
{
    printf("Read packet stream index : %d\n", packet.stream_index);

    if (packet.stream_index == pCtx->nVStreamIndex)
    {
        //av_usleep(33670);

        printf("Decoding to frame start\n");
        if (avcodec_decode_video2(pCtx->pVCodecCtx, pFrame, &nFrameEos, &packet) < 0)
        {
            av_log(NULL, AV_LOG_ERROR, "Decod video error");
            return NULL;
        }
        printf("Decoding to frame end\n");

        nFrameWidth = pCtx->pVCodecCtx->width;
        nFrameHeight = pCtx->pVCodecCtx->height;

        printf("frame Width : %d, Height : %d\n", nFrameWidth, nFrameHeight);

        pCtx->pSwsCtx = sws_getContext(nFrameWidth,
            nFrameHeight,
            pCtx->pVCodecCtx->pix_fmt,
            nFrameWidth,
            nFrameHeight,
            AV_PIX_FMT_RGB24,
            SWS_BICUBIC,
            NULL, NULL, NULL);

        printf("sws Get context\n");

        if (nFrameEos > 0)
        {
            sws_scale(  pCtx->pSwsCtx,
                        pFrame->data,
                        pFrame->linesize,
                        0,
                        nFrameHeight,
                        pPicture_RGB->data,
                        pPicture_RGB->linesize);

            printf("sws set scale\n");

            pixbuf = gdk_pixbuf_new_from_data(pPicture_RGB->data[0],
                GDK_COLORSPACE_RGB,
                0,
                8,
                nFrameWidth,
                nFrameHeight,
                pPicture_RGB->linesize[0],
                pixmap_destroy_nf,
                NULL);

            printf("create pixbuf from frame data\n");

            gtk_image_set_from_pixbuf((GtkImage*)pCtx->pImage, pixbuf);

            g_object_unref(pixbuf);
            cairo_surface_destroy(surface);
            cairo_destroy(cr);

            //gdk_threads_leave();

        }
        av_free_packet(&packet);
    }
}


printf("Exit Thread\n");

return NULL;
}


int main(int argc, char *argv[])
{
GtkWidget*          overlay;
GtkWidget*          eventBox;
GError*             err = NULL;
CMonitorManager*    pManager;
GdkRectangle        Rect;
char*               pFileURI = "/home/pi/test.mp4";
//char*             pFileURI = "/home/ubuntu/test.mp4";
//char*             pFileURI = "/home/ubuntu/cev.avi";
int                 nIndex;
//MovContext2           Ctx;

//XInitThreads();   
memset(&Ctx, 0x00, sizeof(Ctx));
av_register_all();

if (avformat_open_input(&Ctx.pFormatCtx, pFileURI, NULL, NULL) != 0)
{
    av_log(NULL, AV_LOG_ERROR, "Couldn't open file");
    return FALSE;
}
printf("C - open uri\n");

if (avformat_find_stream_info(Ctx.pFormatCtx, NULL) != 0)
{
    av_log(NULL, AV_LOG_ERROR, "Couldn't find stream information");
    return FALSE;
}
printf("C - find stream info\n");

av_dump_format(Ctx.pFormatCtx, 0, pFileURI, 0);
printf("C - media dump\n");

Ctx.nVStreamIndex = av_find_best_stream(Ctx.pFormatCtx, AVMEDIA_TYPE_VIDEO, -1, -1, NULL, 0);
if (Ctx.nVStreamIndex == AVERROR_STREAM_NOT_FOUND)
{
    for (nIndex = 0; nIndex < Ctx.pFormatCtx->nb_streams; nIndex++)
    {
        if (Ctx.pFormatCtx->streams[nIndex]->codec->codec_type == AVMEDIA_TYPE_VIDEO)
        {
            Ctx.nVStreamIndex = nIndex;
            break;
        }
    }

    if (Ctx.nVStreamIndex < 0)
    {
        av_log(NULL, AV_LOG_ERROR, "Didn't find a video stream");
        return FALSE;
    }
}
printf("C - get video stream index\n");

Ctx.nAStreamIndex = av_find_best_stream(Ctx.pFormatCtx, AVMEDIA_TYPE_AUDIO, Ctx.nVStreamIndex, -1, NULL, 0);
if (Ctx.nAStreamIndex == AVERROR_STREAM_NOT_FOUND)
{
    for (nIndex = 0; nIndex < Ctx.pFormatCtx->nb_streams; nIndex++)
    {
        if (Ctx.pFormatCtx->streams[nIndex]->codec->codec_type == AVMEDIA_TYPE_AUDIO)
        {
            Ctx.nAStreamIndex = nIndex;
            break;
        }
    }

    if (Ctx.nAStreamIndex < 0)
    {
        av_log(NULL, AV_LOG_ERROR, "Didn't find a audio stream");
    }
}
printf("C - get audio stream index\n");

if ((Ctx.pFormatCtx->streams[Ctx.nVStreamIndex]->codecpar = avcodec_parameters_alloc()) == NULL)
{
    av_log(NULL, AV_LOG_ERROR, "Couldn't alloc video codec parameters");
    return FALSE;
}
avcodec_parameters_from_context(Ctx.pFormatCtx->streams[Ctx.nVStreamIndex]->codecpar,
    Ctx.pFormatCtx->streams[Ctx.nVStreamIndex]->codec);
printf("C - video codec parameter alloc\n");


Ctx.pVCodec = avcodec_find_decoder(Ctx.pFormatCtx->streams[Ctx.nVStreamIndex]->codecpar->codec_id);
printf("C - find video codec %s \n", Ctx.pVCodec->long_name);
Ctx.pVCodecCtx = avcodec_alloc_context3(Ctx.pVCodec);

avcodec_parameters_to_context(Ctx.pVCodecCtx, Ctx.pFormatCtx->streams[Ctx.nVStreamIndex]->codecpar);

if (avcodec_open2(Ctx.pVCodecCtx, Ctx.pVCodec, NULL) < 0)
{
    av_log(NULL, AV_LOG_ERROR, "Could not open video codec");
    return FALSE;
}
printf("C - video codec context oepn\n");

if (Ctx.nAStreamIndex > 0)
{
    if ((Ctx.pFormatCtx->streams[Ctx.nAStreamIndex]->codecpar = avcodec_parameters_alloc()) != NULL)
    {
        avcodec_parameters_from_context(Ctx.pFormatCtx->streams[Ctx.nAStreamIndex]->codecpar,
            Ctx.pFormatCtx->streams[Ctx.nAStreamIndex]->codec);
        printf("C - audio codec parameter alloc\n");

        Ctx.pACodec = avcodec_find_decoder(Ctx.pFormatCtx->streams[Ctx.nAStreamIndex]->codecpar->codec_id);
        printf("C - find audio codec\n");
        Ctx.pACodecCtx = avcodec_alloc_context3(Ctx.pACodec);

        if (avcodec_open2(Ctx.pACodecCtx, Ctx.pACodec, NULL) < 0) {
            av_log(NULL, AV_LOG_ERROR, "Could not open audio codec");
        }
        printf("C - audio codec context oepn\n");
    }
    else
    {
        av_log(NULL, AV_LOG_ERROR, "Couldn't alloc video codec parameters");
    }
}

Ctx.pVCodecCtx->width = 1920;
Ctx.pVCodecCtx->height = 1080;

Ctx.pSwsCtx = sws_getContext(Ctx.pVCodecCtx->width,
    Ctx.pVCodecCtx->height,
    Ctx.pVCodecCtx->pix_fmt,
    Ctx.pVCodecCtx->width,
    Ctx.pVCodecCtx->height,
    AV_PIX_FMT_YUV420P,
    SWS_BILINEAR,
    NULL,
    NULL,
    NULL);

pthread_create(&Ctx.tID, NULL, PlayBackGround, &Ctx);

GtkWidget *window;

gtk_init(&argc, &argv);

window = gtk_window_new(GTK_WINDOW_TOPLEVEL);

Ctx.pImage = gtk_image_new();
gtk_container_add(GTK_CONTAINER(window), Ctx.pImage);

gtk_window_set_position(GTK_WINDOW(window), GTK_WIN_POS_CENTER);
gtk_window_set_default_size(GTK_WINDOW(window), 1920, 1080);
gtk_widget_show_all(window);

gtk_main();

return 0;
}