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• Converting .3gp file into mp4 file in android using ffmpeg

  8 août 2013, par user2171513

  I want to convert .3gp file into .mp4 file with resolution modified in Android using ffmpeg.
  I want to increase the resolution of the video from its standard resolution to 1920x1080.

  So far I have been successful in
  1) extracting .h264 video file from .3gp file and increase its resolution
  2) extracting .aac audio file from .3gp file.

  Now I want to combine them back into .mp4 file. The commands that I have used to extract this .h264 and .aac files are :

  ./ffmpeg -i 1.3gp -vbsf h264_mp4toannexb -s 1920x1080 1.h264
  
  ./ffmpeg -i 1.3gp -ab 160k -ac 2 -ar 48000 -vn -strict -2  1.aac

  The command that I have tried to merge them back is

  ./ffmpeg -i 1.h264 -i 1.aac -map 0:0 -map 1:0 -strict -2 1.mp4

  The 1.mp4 that gets generated at the end basically has audio only at few sync frames of video. (Thats what I feel , because the audio is present at specific intervals within the video)

  Can anyone please help in figuring out what am I missing here.

  EDIT :
  So basically I want to concat 4 different videos of 4 different resolution and type.

  1)

  ./ffmpeg -i 1.mp4 
  
  Video: h264 (High), yuv420p, 1920x1080, 16959 kb/s, 29.85 fps, 90k tbr, 90k tbn, 180k tbc
  
  Audio: aac, 48000 Hz, stereo, s16, 106 kb/s

  2)

  ffmpeg -i 2.mp4
  
  Video: h264 (Constrained Baseline), yuv420p, 640x480, 3102 kb/s, 29.99 fps, 90k tbr, 90k tbn, 180k tbc
  
  Audio: aac, 48000 Hz, stereo, s16, 93 kb/s

  3)

  ffmpeg -i 3.3gp
  
  Video: h263, yuv420p, 1408x1152 [PAR 12:11 DAR 4:3], 2920 kb/s, 15 fps, 15 tbr, 15360 tbn, 29.97 tbc
  
  Audio: amrnb, 8000 Hz, 1 channels, flt, 12 kb/s

  4)

  ffmpeg -i 4.3gp
  
  Video: h264 (High), yuv420p, 352x288 [PAR 12:11 DAR 4:3], 216 kb/s, 24 fps, 24 tbr, 24 tbn, 48 tbc
  
  Audio: aac, 44100 Hz, stereo, s16, 92 kb/s

  So I am converting them to mpegts using following commands

  ./ffmpeg -i 1.mp4 -c:v libx264 -vf scale=1920:1080 -r 60 -c:a aac -ar 48000 -b:a 160k -strict experimental -f mpegts 1.ts
  
  ./ffmpeg -i 2.mp4 -c:v libx264 -vf scale=1920:1080 -r 60 -c:a aac -ar 48000 -b:a 160k -strict experimental -f mpegts 2.ts
  
  ./ffmpeg -i 3.3gp -c:v libx264 -vf scale=1920:1080 -r 60 -c:a aac -ar 48000 -b:a 160k -strict experimental -f mpegts 3.ts
  
  ./ffmpeg -i 4.3gp -c:v libx264 -vf scale=1920:1080 -r 60 -c:a aac -ar 48000 -b:a 160k -strict experimental -f mpegts 4.ts

  then concatenating the .ts files into f.ts and then creating a final .mp4 file from it using

   cat 1.ts 2.ts 3.ts 4.ts > f.ts
  
  ./ffmpeg -i f.ts -c copy -bsf:a aac_adtstoasc output.mp4

  But my f.ts also doesnt seem to play correctly in VLC on linux, it plays first 2 mp4's video + audio and it plays last .3gp's audio only.(Same for output.mp4 too) Could you please help me in figuring out what am I missing ?

  Thanks

• h264 extracting frames works only on certain operating system / ffmpeg version

  15 juin 2018, par J. S.

  I have received parsed h264 data from my phone, and I am trying to extract frames from the data.

  I used the following ffmpeg command lines :

  ffmpeg -i temp.h264 -ss 5 -pix_fmt yuv420p -vframes 1 foo.yuv
  
  
  
  ffmpeg -s 1280:720 -pix_fmt yuv420p -i foo.yuv output.jpg

  This results in the right output image on Ubuntu (KDE neon User Edition 5.12) with ffmpeg version 2.8.14.

  However, it does not work on macOS High Sierra (10.13.4) with ffmpeg version 4.0 and instead shows an output message :

  Output file is empty, nothing was encoded (check -ss / -t / -frames parameters if used)

  I am not sure whether this is a mere ffmpeg version-related issue or not because as an experiment, when I converted the h264 data into mp4 format and played it on macOS High Sierra, the video sometimes shows a sequence of black distorted image (screenshot), and other times, a normal video.

  If I play that same video on Ubuntu (KDE neon User Edition 5.12), the video plays perfectly.

  I don’t understand why this problem would occur, and whether this has to do with OS or ffmpeg library version.
  What would be some good ways to approach this problem ? Thanks.

  EDIT :

  Full log of first ffmpeg command line (ubuntu) :

  ffmpeg version 2.8.14-0ubuntu0.16.04.1 Copyright (c) 2000-2018 the FFmpeg developers
  
    built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.9) 20160609
  
    configuration: --prefix=/usr --extra-version=0ubuntu0.16.04.1 --build-suffix=-ffmpeg --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --cc=cc --cxx=g++ --enable-gpl --enable-shared --disable-stripping --disable-decoder=libopenjpeg --disable-decoder=libschroedinger --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmodplug --enable-libmp3lame --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-librtmp --enable-libschroedinger --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxvid --enable-libzvbi --enable-openal --enable-opengl --enable-x11grab --enable-libdc1394 --enable-libiec61883 --enable-libzmq --enable-frei0r --enable-libx264 --enable-libopencv
  
    libavutil      54. 31.100 / 54. 31.100
  
    libavcodec     56. 60.100 / 56. 60.100
  
    libavformat    56. 40.101 / 56. 40.101
  
    libavdevice    56.  4.100 / 56.  4.100
  
    libavfilter     5. 40.101 /  5. 40.101
  
    libavresample   2.  1.  0 /  2.  1.  0
  
    libswscale      3.  1.101 /  3.  1.101
  
    libswresample   1.  2.101 /  1.  2.101
  
    libpostproc    53.  3.100 / 53.  3.100
  
  [h264 @ 0x11ae2a0] error while decoding MB 54 2, bytestream -16
  
  [h264 @ 0x11ae2a0] top block unavailable for requested intra4x4 mode -1 at 2 9                                                                             
  
  [h264 @ 0x11ae2a0] error while decoding MB 2 9, bytestream 6908                                                                                            
  
  [h264 @ 0x11ae2a0] concealing 1275 DC, 1275 AC, 1275 MV errors in P frame
  
  [h264 @ 0x11ae2a0] top block unavailable for requested intra4x4 mode -1 at 27 0
  
  [h264 @ 0x11ae2a0] error while decoding MB 27 0, bytestream 5564                                                                                           
  
  [h264 @ 0x11ae2a0] deblocking filter parameters 7 13 out of range                                                                                          
  
  [h264 @ 0x11ae2a0] decode_slice_header error                                                                                                               
  
  [h264 @ 0x11ae2a0] concealing 1440 DC, 1440 AC, 1440 MV errors in P frame
  
  [h264 @ 0x11ae2a0] deblocking filter parameters 7 -14 out of range
  
  [h264 @ 0x11ae2a0] decode_slice_header error                                                                                                               
  
  [h264 @ 0x11ae2a0] concealing 1387 DC, 1387 AC, 1387 MV errors in P frame
  
  [h264 @ 0x11ae2a0] deblocking filter parameters -7 0 out of range
  
  [h264 @ 0x11ae2a0] decode_slice_header error                                                                                                               
  
  [h264 @ 0x11ae2a0] concealing 1413 DC, 1413 AC, 1413 MV errors in P frame
  
  [h264 @ 0x11ae2a0] top block unavailable for requested intra4x4 mode -1 at 9 0
  
  [h264 @ 0x11ae2a0] error while decoding MB 9 0, bytestream 6647                                                                                            
  
  [h264 @ 0x11ae2a0] concealing 1186 DC, 1186 AC, 1186 MV errors in P frame
  
  [h264 @ 0x11ae2a0] top block unavailable for requested intra mode at 16 9
  
  [h264 @ 0x11ae2a0] error while decoding MB 16 9, bytestream 6182                                                                                           
  
  [h264 @ 0x11ae2a0] top block unavailable for requested intra4x4 mode -1 at 6 18                                                                            
  
  [h264 @ 0x11ae2a0] error while decoding MB 6 18, bytestream 7042                                                                                           
  
  [h264 @ 0x11ae2a0] concealing 1440 DC, 1440 AC, 1440 MV errors in P frame
  
  [h264 @ 0x11ad340] Stream #0: not enough frames to estimate rate; consider increasing probesize
  
  Input #0, h264, from 'temp.h264':
  
    Duration: N/A, bitrate: N/A
  
      Stream #0:0: Video: h264 (High), yuvj420p(pc), 1280x720, 29.97 fps, 29.97 tbr, 1200k tbn, 59.94 tbc
  
  [swscaler @ 0x1207dc0] deprecated pixel format used, make sure you did set range correctly
  
  Output #0, rawvideo, to 'foo.yuv':
  
    Metadata:
  
      encoder         : Lavf56.40.101
  
      Stream #0:0: Video: rawvideo (I420 / 0x30323449), yuv420p, 1280x720, q=2-31, 200 kb/s, 29.97 fps, 29.97 tbn, 29.97 tbc
  
      Metadata:
  
        encoder         : Lavc56.60.100 rawvideo
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (h264 (native) -> rawvideo (native))
  
  Press [q] to stop, [?] for help
  
  [h264 @ 0x11f98a0] error while decoding MB 54 2, bytestream -16
  
  [h264 @ 0x11f98a0] top block unavailable for requested intra4x4 mode -1 at 2 9                                                                             
  
  [h264 @ 0x11f98a0] error while decoding MB 2 9, bytestream 6908                                                                                            
  
  [h264 @ 0x11f98a0] concealing 1275 DC, 1275 AC, 1275 MV errors in P frame
  
  [h264 @ 0x12758e0] top block unavailable for requested intra4x4 mode -1 at 27 0
  
  [h264 @ 0x12758e0] error while decoding MB 27 0, bytestream 5564                                                                                           
  
  [h264 @ 0x12758e0] deblocking filter parameters 7 13 out of range                                                                                          
  
  [h264 @ 0x12758e0] decode_slice_header error                                                                                                               
  
  [h264 @ 0x12758e0] concealing 1440 DC, 1440 AC, 1440 MV errors in P frame
  
  [h264 @ 0x11ffcc0] deblocking filter parameters 7 -14 out of range
  
  [h264 @ 0x11ffcc0] decode_slice_header error                                                                                                               
  
  [h264 @ 0x11ffcc0] concealing 1387 DC, 1387 AC, 1387 MV errors in P frame
  
  [h264 @ 0x11f98a0] deblocking filter parameters -7 0 out of range
  
  [h264 @ 0x11f98a0] decode_slice_header error                                                                                                               
  
  [h264 @ 0x11f98a0] concealing 1413 DC, 1413 AC, 1413 MV errors in P frame
  
  [h264 @ 0x12758e0] top block unavailable for requested intra4x4 mode -1 at 9 0
  
  [h264 @ 0x12758e0] error while decoding MB 9 0, bytestream 6647                                                                                            
  
  [h264 @ 0x12758e0] concealing 1186 DC, 1186 AC, 1186 MV errors in P frame
  
  [h264 @ 0x11ffcc0] top block unavailable for requested intra mode at 16 9
  
  [h264 @ 0x11ffcc0] error while decoding MB 16 9, bytestream 6182                                                                                           
  
  [h264 @ 0x11ffcc0] top block unavailable for requested intra4x4 mode -1 at 6 18                                                                            
  
  [h264 @ 0x11ffcc0] error while decoding MB 6 18, bytestream 7042                                                                                           
  
  [h264 @ 0x11ffcc0] concealing 1440 DC, 1440 AC, 1440 MV errors in P frame
  
  [h264 @ 0x11f98a0] top block unavailable for requested intra4x4 mode -1 at 12 9
  
  [h264 @ 0x11f98a0] error while decoding MB 12 9, bytestream 6863                                                                                           
  
  [h264 @ 0x11f98a0] concealing 1342 DC, 1342 AC, 1342 MV errors in P frame
  
  [h264 @ 0x12758e0] top block unavailable for requested intra mode at 29 18
  
  [h264 @ 0x12758e0] error while decoding MB 29 18, bytestream 6612                                                                                          
  
  [h264 @ 0x12758e0] concealing 1405 DC, 1405 AC, 1405 MV errors in P frame
  
  [h264 @ 0x11ffcc0] top block unavailable for requested intra mode at 25 9
  
  [h264 @ 0x11ffcc0] error while decoding MB 25 9, bytestream 6051                                                                                           
  
  [h264 @ 0x11ffcc0] top block unavailable for requested intra4x4 mode -1 at 70 18                                                                           
  
  [h264 @ 0x11ffcc0] error while decoding MB 70 18, bytestream 5089                                                                                          
  
  [h264 @ 0x11ffcc0] concealing 1419 DC, 1419 AC, 1419 MV errors in P frame
  
  [h264 @ 0x11f98a0] top block unavailable for requested intra mode at 14 9
  
  [h264 @ 0x11f98a0] error while decoding MB 14 9, bytestream 6071
  
  [h264 @ 0x11f98a0] deblocking filter parameters -9 0 out of range
  
  [h264 @ 0x11f98a0] decode_slice_header error
  
  [h264 @ 0x11f98a0] concealing 1440 DC, 1440 AC, 1440 MV errors in P frame
  
  [h264 @ 0x12758e0] top block unavailable for requested intra4x4 mode -1 at 54 9
  
  [h264 @ 0x12758e0] error while decoding MB 54 9, bytestream 4423
  
  [h264 @ 0x12758e0] concealing 1256 DC, 1256 AC, 1256 MV errors in P frame
  
  [h264 @ 0x11ffcc0] top block unavailable for requested intra4x4 mode -1 at 22 9
  
  [h264 @ 0x11ffcc0] error while decoding MB 22 9, bytestream 5861
  
  [h264 @ 0x11ffcc0] concealing 1335 DC, 1335 AC, 1335 MV errors in P frame
  
  [h264 @ 0x11f98a0] deblocking filter parameters 7 -4 out of range
  
  [h264 @ 0x11f98a0] decode_slice_header error
  
  [h264 @ 0x11f98a0] concealing 1430 DC, 1430 AC, 1430 MV errors in P frame
  
  [h264 @ 0x12758e0] concealing 1319 DC, 1319 AC, 1319 MV errors in P frame
  
  [h264 @ 0x11ffcc0] top block unavailable for requested intra4x4 mode -1 at 16 9
  
  [h264 @ 0x11ffcc0] error while decoding MB 16 9, bytestream 6217
  
  [h264 @ 0x11ffcc0] concealing 1416 DC, 1416 AC, 1416 MV errors in P frame
  
  [h264 @ 0x11f98a0] top block unavailable for requested intra4x4 mode -1 at 12 0
  
  [h264 @ 0x11f98a0] error while decoding MB 12 0, bytestream 6854
  
  [h264 @ 0x11f98a0] top block unavailable for requested intra4x4 mode -1 at 2 9
  
  [h264 @ 0x11f98a0] error while decoding MB 2 9, bytestream 7093
  
  [h264 @ 0x11f98a0] concealing 1440 DC, 1440 AC, 1440 MV errors in P frame
  
  [h264 @ 0x12758e0] top block unavailable for requested intra4x4 mode -1 at 59 0
  
  [h264 @ 0x12758e0] error while decoding MB 59 0, bytestream 4955
  
  [h264 @ 0x12758e0] deblocking filter parameters 7 15 out of range
  
  [h264 @ 0x12758e0] decode_slice_header error
  
  [h264 @ 0x12758e0] concealing 1430 DC, 1430 AC, 1430 MV errors in P frame
  
  [h264 @ 0x11ffcc0] top block unavailable for requested intra4x4 mode -1 at 34 0
  
  [h264 @ 0x11ffcc0] error while decoding MB 34 0, bytestream 5338
  
  [h264 @ 0x11ffcc0] deblocking filter parameters 7 13 out of range
  
  [h264 @ 0x11ffcc0] decode_slice_header error
  
  [h264 @ 0x11ffcc0] concealing 1440 DC, 1440 AC, 1440 MV errors in P frame
  
  [h264 @ 0x11ffcc0] Reinit context to 1280x720, pix_fmt: yuv420p
  
  [h264 @ 0x11f98a0] concealing 1344 DC, 1344 AC, 1344 MV errors in P frame
  
  [h264 @ 0x12758e0] top block unavailable for requested intra4x4 mode -1 at 49 9
  
  [h264 @ 0x12758e0] error while decoding MB 49 9, bytestream 4993
  
  [h264 @ 0x12758e0] concealing 1228 DC, 1228 AC, 1228 MV errors in P frame
  
  Input stream #0:0 frame changed from size:1280x720 fmt:yuvj420p to size:1280x720 fmt:yuv420p
  
  frame=    1 fps=0.6 q=-0.0 Lsize=    1350kB time=00:00:04.93 bitrate=2239.5kbits/s    
  
  video:1350kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.000000%

  Full log of first ffmpeg command line (macOS) :

  ffmpeg version 4.0 Copyright (c) 2000-2018 the FFmpeg developers
  
    built with Apple LLVM version 9.1.0 (clang-902.0.39.1)
  
    configuration: --prefix=/usr/local/Cellar/ffmpeg/4.0 --enable-shared --enable-pthreads --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-gpl --enable-libmp3lame --enable-libx264 --enable-libxvid --enable-opencl --enable-videotoolbox --disable-lzma
  
    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
  
    libavresample   4.  0.  0 /  4.  0.  0
  
    libswscale      5.  1.100 /  5.  1.100
  
    libswresample   3.  1.100 /  3.  1.100
  
    libpostproc    55.  1.100 / 55.  1.100
  
  [h264 @ 0x7fcb3880b600] error while decoding MB 54 2, bytestream -14
  
  [h264 @ 0x7fcb3880b600] top block unavailable for requested intra mode -1
  
  [h264 @ 0x7fcb3880b600] error while decoding MB 2 9, bytestream 6908
  
  [h264 @ 0x7fcb3880b600] concealing 1275 DC, 1275 AC, 1275 MV errors in P frame
  
  [h264 @ 0x7fcb3880b600] top block unavailable for requested intra mode -1
  
  [h264 @ 0x7fcb3880b600] error while decoding MB 27 0, bytestream 5564
  
  [h264 @ 0x7fcb3880b600] deblocking filter parameters 7 13 out of range
  
  [h264 @ 0x7fcb3880b600] decode_slice_header error
  
  [h264 @ 0x7fcb3880b600] concealing 1440 DC, 1440 AC, 1440 MV errors in P frame
  
  [h264 @ 0x7fcb3880b600] deblocking filter parameters 7 -14 out of range
  
  [h264 @ 0x7fcb3880b600] decode_slice_header error
  
  [h264 @ 0x7fcb3880b600] concealing 1387 DC, 1387 AC, 1387 MV errors in P frame
  
  [h264 @ 0x7fcb3880b600] deblocking filter parameters -7 0 out of range
  
  [h264 @ 0x7fcb3880b600] decode_slice_header error
  
  [h264 @ 0x7fcb3880b600] concealing 1413 DC, 1413 AC, 1413 MV errors in P frame
  
  [h264 @ 0x7fcb3880b600] top block unavailable for requested intra mode -1
  
  [h264 @ 0x7fcb3880b600] error while decoding MB 9 0, bytestream 6647
  
  [h264 @ 0x7fcb3880b600] concealing 1186 DC, 1186 AC, 1186 MV errors in P frame
  
  [h264 @ 0x7fcb3880b600] top block unavailable for requested intra mode
  
  [h264 @ 0x7fcb3880b600] error while decoding MB 16 9, bytestream 6183
  
  [h264 @ 0x7fcb3880b600] top block unavailable for requested intra mode -1
  
  [h264 @ 0x7fcb3880b600] error while decoding MB 6 18, bytestream 7043
  
  [h264 @ 0x7fcb3880b600] concealing 1440 DC, 1440 AC, 1440 MV errors in P frame
  
  [h264 @ 0x7fcb39000400] Stream #0: not enough frames to estimate rate; consider increasing probesize
  
  Input #0, h264, from 'temp.h264':
  
    Duration: N/A, bitrate: N/A
  
      Stream #0:0: Video: h264 (High), yuvj420p(pc, progressive), 1280x720, 29.97 fps, 29.97 tbr, 1200k tbn, 59.94 tbc
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (h264 (native) -> rawvideo (native))
  
  Press [q] to stop, [?] for help
  
  [h264 @ 0x7fcb38003800] error while decoding MB 54 2, bytestream -14
  
  [h264 @ 0x7fcb38003800] top block unavailable for requested intra mode -1
  
  [h264 @ 0x7fcb38003800] error while decoding MB 2 9, bytestream 6908
  
  [h264 @ 0x7fcb38003800] concealing 1275 DC, 1275 AC, 1275 MV errors in P frame
  
  [h264 @ 0x7fcb38003e00] top block unavailable for requested intra mode -1
  
  [h264 @ 0x7fcb38003e00] error while decoding MB 27 0, bytestream 5564
  
  [h264 @ 0x7fcb38003e00] deblocking filter parameters 7 13 out of range
  
  [h264 @ 0x7fcb38003e00] decode_slice_header error
  
  [h264 @ 0x7fcb38003e00] concealing 1440 DC, 1440 AC, 1440 MV errors in P frame
  
  [swscaler @ 0x7fcb3817aa00] deprecated pixel format used, make sure you did set range correctly
  
  [h264 @ 0x7fcb3809c000] deblocking filter parameters 7 -14 out of range
  
  [h264 @ 0x7fcb3809c000] decode_slice_header error
  
  [h264 @ 0x7fcb3809c000] concealing 1387 DC, 1387 AC, 1387 MV errors in P frame
  
  Output #0, rawvideo, to 'foo.yuv':
  
    Metadata:
  
      encoder         : Lavf58.12.100
  
      Stream #0:0: Video: rawvideo (I420 / 0x30323449), yuv420p, 1280x720, q=2-31, 331444 kb/s, 29.97 fps, 29.97 tbn, 29.97 tbc
  
      Metadata:
  
        encoder         : Lavc58.18.100 rawvideo
  
  [h264 @ 0x7fcb3809c600] deblocking filter parameters -7 0 out of range
  
  [h264 @ 0x7fcb3809c600] decode_slice_header error
  
  [h264 @ 0x7fcb3809c600] concealing 1413 DC, 1413 AC, 1413 MV errors in P frame
  
  [h264 @ 0x7fcb38003200] top block unavailable for requested intra mode -1
  
  [h264 @ 0x7fcb38003200] error while decoding MB 9 0, bytestream 6647
  
  [h264 @ 0x7fcb38003200] concealing 1186 DC, 1186 AC, 1186 MV errors in P frame
  
  [h264 @ 0x7fcb38003800] top block unavailable for requested intra mode
  
  [h264 @ 0x7fcb38003800] error while decoding MB 16 9, bytestream 6183
  
  [h264 @ 0x7fcb38003800] top block unavailable for requested intra mode -1
  
  [h264 @ 0x7fcb38003800] error while decoding MB 6 18, bytestream 7043
  
  [h264 @ 0x7fcb38003800] concealing 1440 DC, 1440 AC, 1440 MV errors in P frame
  
  [h264 @ 0x7fcb38003e00] top block unavailable for requested intra mode -1
  
  [h264 @ 0x7fcb38003e00] error while decoding MB 12 9, bytestream 6862
  
  [h264 @ 0x7fcb38003e00] concealing 1342 DC, 1342 AC, 1342 MV errors in P frame
  
  [h264 @ 0x7fcb3809c000] top block unavailable for requested intra mode
  
  [h264 @ 0x7fcb3809c000] error while decoding MB 29 18, bytestream 6612
  
  [h264 @ 0x7fcb3809c000] concealing 1405 DC, 1405 AC, 1405 MV errors in P frame
  
  [h264 @ 0x7fcb3809c600] top block unavailable for requested intra mode
  
  [h264 @ 0x7fcb3809c600] error while decoding MB 25 9, bytestream 6050
  
  [h264 @ 0x7fcb3809c600] top block unavailable for requested intra mode -1
  
  [h264 @ 0x7fcb3809c600] error while decoding MB 70 18, bytestream 5089
  
  [h264 @ 0x7fcb3809c600] concealing 1419 DC, 1419 AC, 1419 MV errors in P frame
  
  [h264 @ 0x7fcb38003200] top block unavailable for requested intra mode
  
  [h264 @ 0x7fcb38003200] error while decoding MB 14 9, bytestream 6071
  
  [h264 @ 0x7fcb38003200] deblocking filter parameters -9 0 out of range
  
  [h264 @ 0x7fcb38003200] decode_slice_header error
  
  [h264 @ 0x7fcb38003200] concealing 1440 DC, 1440 AC, 1440 MV errors in P frame
  
  [h264 @ 0x7fcb38003800] top block unavailable for requested intra mode -1
  
  [h264 @ 0x7fcb38003800] error while decoding MB 54 9, bytestream 4423
  
  [h264 @ 0x7fcb38003800] concealing 1256 DC, 1256 AC, 1256 MV errors in P frame
  
  [h264 @ 0x7fcb38003e00] top block unavailable for requested intra mode -1
  
  [h264 @ 0x7fcb38003e00] error while decoding MB 22 9, bytestream 5862
  
  [h264 @ 0x7fcb38003e00] concealing 1335 DC, 1335 AC, 1335 MV errors in P frame
  
  [h264 @ 0x7fcb3809c000] deblocking filter parameters 7 -4 out of range
  
  [h264 @ 0x7fcb3809c000] decode_slice_header error
  
  [h264 @ 0x7fcb3809c000] concealing 1430 DC, 1430 AC, 1430 MV errors in P frame
  
  [h264 @ 0x7fcb3809c600] concealing 1319 DC, 1319 AC, 1319 MV errors in P frame
  
  [h264 @ 0x7fcb38003200] top block unavailable for requested intra mode -1
  
  [h264 @ 0x7fcb38003200] error while decoding MB 16 9, bytestream 6217
  
  [h264 @ 0x7fcb38003200] concealing 1416 DC, 1416 AC, 1416 MV errors in P frame
  
  [h264 @ 0x7fcb38003800] top block unavailable for requested intra mode -1
  
  [h264 @ 0x7fcb38003800] error while decoding MB 12 0, bytestream 6854
  
  [h264 @ 0x7fcb38003800] top block unavailable for requested intra mode -1
  
  [h264 @ 0x7fcb38003800] error while decoding MB 2 9, bytestream 7093
  
  [h264 @ 0x7fcb38003800] concealing 1440 DC, 1440 AC, 1440 MV errors in P frame
  
  [h264 @ 0x7fcb38003e00] top block unavailable for requested intra mode -1
  
  [h264 @ 0x7fcb38003e00] error while decoding MB 59 0, bytestream 4955
  
  [h264 @ 0x7fcb38003e00] deblocking filter parameters 7 15 out of range
  
  [h264 @ 0x7fcb38003e00] decode_slice_header error
  
  [h264 @ 0x7fcb38003e00] concealing 1430 DC, 1430 AC, 1430 MV errors in P frame
  
  [h264 @ 0x7fcb3809c000] top block unavailable for requested intra mode -1
  
  [h264 @ 0x7fcb3809c000] error while decoding MB 34 0, bytestream 5338
  
  [h264 @ 0x7fcb3809c000] deblocking filter parameters 7 13 out of range
  
  [h264 @ 0x7fcb3809c000] decode_slice_header error
  
  [h264 @ 0x7fcb3809c000] concealing 1440 DC, 1440 AC, 1440 MV errors in P frame
  
  [h264 @ 0x7fcb3809c600] concealing 1344 DC, 1344 AC, 1344 MV errors in P frame
  
  [h264 @ 0x7fcb38003200] top block unavailable for requested intra mode -1
  
  [h264 @ 0x7fcb38003200] error while decoding MB 49 9, bytestream 4992
  
  [h264 @ 0x7fcb38003200] concealing 1228 DC, 1228 AC, 1228 MV errors in P frame
  
  frame=    0 fps=0.0 q=0.0 Lsize=       0kB time=00:00:00.00 bitrate=N/A speed=   0x    
  
  video:0kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown
  
  Output file is empty, nothing was encoded (check -ss / -t / -frames parameters if used)

• HTML 5 Video tag not supported by Chrome or Firefox.

  8 août 2018, par avanib

  My .mp4 file(created and saved on server) has audio and video, but when I play it on the browser only the audio plays, are there any alternatives to tag in HTML to display the .mp4 file that shows on all browsers.

  I tried changing the encoding of my video file to H264 using FFMPEG, but it still doesn’t work..instead it stops creating the video entirely.

  recorder.setVideoCodec(avcodec.AV_CODEC_ID_H264);

  Any help is appreciated ! :)