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• ffmpeg unable to convert vhs-captured .ts files [closed]

  4 avril, par fredko

  I'm digitizing vhs tapes with a Hauppauge Colossus capture card and Mediaportal on windows 7. They're captured as .ts files and the .ts files play well, with no sign of corruption.

  


  But I'd like to convert them to .mkv (losslessly from the .ts), and ffmpeg (version 2023-08-28-git-b5273c619d-essentials_build-www.gyan.dev) fails at this. I use

  


  ffmpeg.exe -i test.ts -c copy test.mkv


  


  and get these errors repeated many times

  


  [mpegts @ 00000000003d6d40] Packet corrupt (stream = 0, dts = 46105).
[mpegts @ 00000000003d6d40] Packet corrupt (stream = 0, dts = 49107).
[h264 @ 00000000003fc580] non-existing PPS 0 referenced
    Last message repeated 1 times
[h264 @ 00000000003fc580] decode_slice_header error
[h264 @ 00000000003fc580] no frame!
...etc...
[in#0/mpegts @ 00000000003d6b80] corrupt input packet in stream 0
[mpegts @ 00000000003d6d40] Packet corrupt (stream = 0, dts = 247305).
...etc...


  


  The resulting mkv file is much smaller than the .ts, and displays solid black in mpc-hc. Ffprobe gives the same errors and ends with

  


  Input #0, mpegts, from 'test.ts':
  Duration: 00:24:26.80, start: 0.099956, bitrate: 4486 kb/s
  Program 137 
  Stream #0:0[0x30]: Video: h264 (Main) (HDMV / 0x564D4448), yuv420p(top first),
 720x480 [SAR 10:11 DAR 15:11], 29.97 fps, 29.97 tbr, 90k tbn
  Stream #0:1[0x40]: Audio: aac (LC) ([15][0][0][0] / 0x000F), 48000 Hz, stereo,
 fltp, 188 kb/s


  


  Ffmpeg seems to be complaining about corruption, though again the .ts files play fine. Is there some way to use ffmpeg to convert these files to mkv ? Or is the problem with the capture setup ?

  


• PHP-FFMPEG Waveform is a little noisy, how to fix that ?

  18 avril 2023, par Kranchi

  I made a waveform through sample code :

  


  $waveform = $audio->waveform(2000, 500, array('#FFA500'));
$waveform->save('waveform.png');


  


  But result has some noise in top & bottom of edges :
https://gcdnb.pbrd.co/images/80v6Up6etCrD.png?o=1

  


  So I made a tiny change in line 140 of src\FFMpeg\Media\Waveform.php :

  


  //'showwavespic=colors='.$this->compileColors().':s='.$this->width.'x'.$this->height,
'showwavespic=draw=full:colors='.$this->compileColors().':s='.$this->width.'x'.$this->height,


  


  And problem fixed :
https://gcdnb.pbrd.co/images/KsCFsOujmJ9W.png?o=1

  


  I'm not sure is this a bug or problem in FFMpeg dll file and my question :

  


  is it possible to send the new command or override save method to avoid hacking the original file ? (the save method is using some protected methods)

  


  https://github.com/PHP-FFMpeg/PHP-FFMpeg/blob/master/src/FFMpeg/Media/Waveform.php

  


  Thanks.

  


  ---

  


  PHP-FFMpeg : 23 | FFMpeg : 2023-02-27-git-891ed24f77 (Win X64) |
PHP : 8.2

  


• ffmpeg conversion failed error while splitting a 1.57GB .tif file

  12 janvier 2023, par Minai

  I am running ffmpeg to split a large .tif image of dimensions 25966 * 64114 into grids 0f 256 * 256 pixels but am getting an error.

  


  I ran the ffmpeg command on an 1883 * 1361 pixel .jpg image named coral2

  


  Here is the image

  


  Using the following command :

  


  ffmpeg -i coral2.jpg -qscale:v 1 -vf "crop=256:256:0:256" coral2-0-256.jpg

  


  Here is the crop

  


  When I run the same command on a 1.57GB .tif image :

  


  image.tif -qscale:v 1 -vf "crop=256:256:0:256" image%01d.tif

  


  I get the following error :

  


  


  


  C :\Users\gwmin\Downloads\coral\southbayapal>ffmpeg -i image.tif -qscale:v 1 -vf "crop=256:256:0:256" image%01d.tif

  


  ffmpeg version 2023-01-12-git-fc263f073e-full_build-www.gyan.dev Copyright (c) 2000-2023 the FFmpeg developers
built with gcc 12.2.0 (Rev7, Built by MSYS2 project)

  


  configuration : —enable-gpl —enable-version3 —enable-static —disable-w32threads —disable-autodetect —enable-fontconfig —enable-iconv —enable-gnutls —enable-libxml2 —enable-gmp —enable-bzlib —enable-lzma —enable-libsnappy —enable-zlib —enable-librist —enable-libsrt —enable-libssh —enable-libzmq —enable-avisynth —enable-libbluray —enable-libcaca —enable-sdl2 —enable-libaribb24 —enable-libdav1d —enable-libdavs2 —enable-libuavs3d —enable-libzvbi —enable-librav1e —enable-libsvtav1 —enable-libwebp —enable-libx264 —enable-libx265 —enable-libxavs2 —enable-libxvid —enable-libaom —enable-libjxl —enable-libopenjpeg —enable-libvpx —enable-mediafoundation —enable-libass —enable-frei0r —enable-libfreetype —enable-libfribidi —enable-liblensfun —enable-libvidstab —enable-libvmaf —enable-libzimg —enable-amf —enable-cuda-llvm —enable-cuvid —enable-ffnvcodec —enable-nvdec —enable-nvenc —enable-d3d11va —enable-dxva2 —enable-libvpl —enable-libshaderc —enable-vulkan —enable-libplacebo —enable-opencl —enable-libcdio —enable-libgme —enable-libmodplug —enable-libopenmpt —enable-libopencore-amrwb —enable-libmp3lame —enable-libshine —enable-libtheora —enable-libtwolame —enable-libvo-amrwbenc —enable-libilbc —enable-libgsm —enable-libopencore-amrnb —enable-libopus —enable-libspeex —enable-libvorbis —enable-ladspa —enable-libbs2b —enable-libflite —enable-libmysofa —enable-librubberband —enable-libsoxr —enable-chromaprint

  


  libavutil 57. 43.100 / 57. 43.100
libavcodec 59. 56.100 / 59. 56.100
libavformat 59. 35.100 / 59. 35.100
libavdevice 59. 8.101 / 59. 8.101
libavfilter 8. 53.100 / 8. 53.100
libswscale 6. 8.112 / 6. 8.112
libswresample 4. 9.100 / 4. 9.100
libpostproc 56. 7.100 / 56. 7.100

  


  [tiff @ 000002c4799b6b00] [IMGUTILS @ 000000e4045fed40] Picture size 25966x64115 is invalid

  


  [tiff_pipe @ 000002c4799a3700] Could not find codec parameters for stream 0 (Video : tiff, rgba) : unspecified size
Consider increasing the value for the 'analyzeduration' (0) and 'probesize' (5000000) options
Input #0, tiff_pipe, from 'SouthBayApal.tif' :
Duration : N/A, bitrate : N/A
Stream #0:0 : Video : tiff, rgba, 25 fps, 25 tbr, 25 tbn
Stream mapping :
Stream #0:0 -> #0:0 (tiff (native) -> tiff (native))
Press [q] to stop, [?] for help
[tiff @ 000002c4799a5d40] [IMGUTILS @ 000000e404dff650] Picture size 25966x64115 is invalid

  


  Error while decoding stream #0:0 : Invalid argument&#xA;[graph 0 input from stream 0:0 @ 000002c479e0cd00] Unable to parse option value "0x0" as image size&#xA;[graph 0 input from stream 0:0 @ 000002c479e0cd00] Error setting option video_size to value 0x0.&#xA;[graph 0 input from stream 0:0 @ 000002c479e0cd00] Error applying generic filter options.&#xA;Error reinitializing filters !&#xA;Error while filtering : Invalid argument&#xA;Finishing stream 0:0 without any data written to it.&#xA;[graph 0 input from stream 0:0 @ 000002c479e0c800] Unable to parse option value "0x0" as image size&#xA;[graph 0 input from stream 0:0 @ 000002c479e0c800] Error setting option video_size to value 0x0.&#xA;[graph 0 input from stream 0:0 @ 000002c479e0c800] Error applying generic filter options.&#xA;Error configuring filter graph&#xA;Conversion failed ! <

  &#xA;

  Please help. My code only works on splitting crops of small images but I cannot crop large .tif images. How can I split using ffmpeg ?

  &#xA;