Recherche avancée

Sur d’autres sites (8699)

• Debugging an MP4 opened by VLC but not by ffplay

  15 mai 2017, par MaMazav

  I’m writing a code which creates MP4 files. To check it I’ve created an MP4 file.

  The file is played correctly by VLC and Firefox, but not by ffplay or by Chrome. I guess the file contains error which VLC can cope with but more aggressive MP4 reader cannot.

  I’ve thought about repairing the file and check what are the differences to fix my code. However I tried some programs to repair MP4 files, without success until now.

  Can someone reccommend another way to debug the problem, or a good tool to fix MP4 files ? The file is a fragmented MP4 contains both the init section (ftyp, moov boxes) and one fragment section (moof and empty sidx).

  Here is the video file :

  https://www.dropbox.com/s/rojxzvkfxfj31u8/400k00001-3_serialized.mp4?dl=0

  EDIT : It doesn’t work also in Firefox, when using Media Source Extensions like in this example :
  http://people.mozilla.org/ jyavenard/tests/mse_mp4/paper.html

  (don’t forget to enable MSE on Firefox, as explained here :
  http://www.linuxveda.com/2015/04/02/enable-mse-native-html5-support-firefox-linux/)

  EDIT2 : In chrome ://media-internals, I see the following error with the above example :
  Append : stream parsing failed. Data size=131072 append_window_start=0 append_window_end=inf

  (Change the URL to be the file and change the codec to be ’avc1.4d401f’ instead of ’avc1.64000d,mp4a.40.2’).

• App crashes on Google TV when playing MP4 videos

  14 avril 2023, par fab

  I am having problems with an Android app that was developed for me. The issue occurs when playing MP4 videos ; the app plays them correctly, but at some point, the app crashes and exits. I have been reviewing errors using Android Studio, and the only error that appears is the following :

  


  2023-04-14 00:45:45.846 7221-7650 SurfaceUtils com.app.X D connecting to surface 0xbf0d2808, reason connectToSurface(reconnect) 2023-04-14 00:45:45.848 7221-7654 ACodec com.app.X E [OMX.amlogic.avc.decoder.awesome2] setPortMode on output to DynamicANWBuffer failed w/ err -2147483648 2023-04-14 00:45:45.855 7221-7334 com.app.X com.app.X I get_buffer_dataspace_setting get_metadata return 0 dataspace:268500992 2023-04-14 00:45:45.875 7221-7334 NdkImageReader com.app.X D acquireImageLocked: Overriding buffer format YUV_420_888 to 0x11. 2023-04-14 00:45:45.877 7221-7334 com.app.X com.app.X I get_buffer_dataspace_setting get_metadata return 0 dataspace:268500992 2023-04-14 00:45:45.887 7221-7280 MediaCodec com.app.X D keep callback message for reclaim 2023-04-14 00:45:45.896 7221-7334 com.app.X com.app.X I get_buffer_dataspace_setting get_metadata return 0 dataspace:268500992 2023-04-14 00:45:45.914 7221-7334 com.app.X com.app.X I get_buffer_dataspace_setting get_metadata return 0 dataspace:268500992 2023-04-14 00:45:45.915 7221-7654 SurfaceUtils com.app.X D disconnecting from surface 0xbf0d2808, reason setNativeWindowSizeFormatAndUsage 2023-04-14 00:45:45.915 7221-7654 SurfaceUtils com.app.X D connecting to surface 0xbf0d2808, reason setNativeWindowSizeFormatAndUsage 2023-04-14 00:45:45.915 7221-7654 SurfaceUtils com.app.X D set up nativeWindow 0xbf0d2808 for 1920x1080, color 0x11, rotation 0, usage 0x402b00 2023-04-14 00:45:45.915 7221-7654 ACodec com.app.X W [OMX.amlogic.avc.decoder.awesome2] setting nBufferCountActual to 9 failed: -1010 2023-04-14 00:45:45.922 7221-7654 ion com.app.X E ioctl c0084905 failed with code -1: Invalid argument 2023-04-14 00:45:45.928 7221-7654 ion com.app.X E ioctl c0084905 failed with code -1: Invalid argument 2023-04-14 00:45:45.943 7221-7334 com.app.X com.app.X I get_buffer_dataspace_setting get_metadata return 0 dataspace:268500992 2023-04-14 00:45:45.954 7221-7654 ion com.app.X E ioctl c0084905 failed with code -1: Invalid argument 2023-04-14 00:45:45.960 7221-7654 ion com.app.X E ioctl c0084905 failed with code -1: Invalid argument 2023-04-14 00:45:45.962 7221-7654 ion com.app.X E ioctl c0084905 failed with code -1: Invalid argument 2023-04-14 00:45:45.969 7221-7654 ion com.app.X E ioctl c0084905 failed with code -1: Invalid argument 2023-04-14 00:45:45.979 7221-7654 ion com.app.X E ioctl c0084905 failed with code -1: Invalid argument 2023-04-14 00:45:45.986 7221-7654 ion com.app.X E ioctl c0084905 failed with code -1: Invalid argument

  


  One clarification is that the app is built with IONIC and Angular.

  


  The FFMPEG code that converts the video in golang is as follows :

  


  func ConvertVideoFile(inputFileName, outputFileName string) error { err := ffmpeg_go.Input(inputFileName). Filter("scale", ffmpeg_go.Args{"800:600"}). Output(outputFileName, ffmpeg_go.KwArgs{ "c:v": "libx264", "profile:v": "high", "level": "3.1", "pix_fmt": "yuv420p", "preset": "medium", "crf": "23", "b:v": "782k", "r": "25", "c:a": "aac", "b:a": "2k", "ar": "48000", "movflags": "+faststart", "max_muxing_queue_size": "1024", }, ). OverWriteOutput().ErrorToStdOut().Run() return err }

  


  Remove this error 2023-04-14 00:45:45.848 7221-7654 ACodec com.app.X E [OMX.amlogic.avc.decoder.awesome2

  


• Evolution #4471 : singulier_ou_pluriel pour l’arabe

  1er juin 2020, par George Kandalaft

  Correction :

  <span class="CodeRay"><span class="comment">/**
   * Afficher un message "un truc"/("deux trucs" pour l'arabe)/"N trucs" 
   * Les items sont à indiquer comme pour la fonction _T() sous la forme :
   * "module:chaine" 
   *
   * @param int $nb : le nombre
   * @param string $chaine_un : l'item de langue si $nb vaut un (ou $nb > 10 pour l'arabe)
   * @param string $chaine_plusieurs : l'item de lanque si $nb > 1 ($nb est compris entre 3 et 10 pour l'arabe)
   * @param string $var : La variable à remplacer par $nb dans l'item de langue (facultatif, défaut "nb")
   * @param array $vars : Les autres variables nécessaires aux chaines de langues (facultatif)
   * @return string : la chaine de langue finale en utilisant la fonction _T()
   */</span>
  <span class="keyword">function</span> <span class="function">ar_singulier_ou_pluriel</span>(<span class="local-variable">$nb</span>, <span class="local-variable">$chaine_un</span>, <span class="local-variable">$chaine_plusieurs</span>, <span class="local-variable">$var</span> = <span class="string"><span class="delimiter">'</span><span class="content">nb</span><span class="delimiter">'</span></span>, <span class="local-variable">$vars</span> = <span class="predefined">array</span>()) {
      <span class="keyword">if</span> (!<span class="local-variable">$nb</span> = <span class="predefined">intval</span>(<span class="local-variable">$nb</span>)) {
          <span class="keyword">return</span> <span class="string"><span class="delimiter">'</span><span class="delimiter">'</span></span>;
      }
      <span class="keyword">if</span> (!<span class="predefined">is_array</span>(<span class="local-variable">$vars</span>)) {
          <span class="keyword">return</span> <span class="string"><span class="delimiter">'</span><span class="delimiter">'</span></span>;
      }
      <span class="local-variable">$vars</span>[<span class="local-variable">$var</span>] = <span class="local-variable">$nb</span>;
   
      <span class="keyword">if</span> (<span class="predefined">$GLOBALS</span>[<span class="string"><span class="delimiter">'</span><span class="content">spip_lang</span><span class="delimiter">'</span></span>] == <span class="string"><span class="delimiter">'</span><span class="content">ar</span><span class="delimiter">'</span></span>) {
          <span class="local-variable">$fem</span> = <span class="predefined">substr</span>(_T(<span class="local-variable">$chaine_un</span>), -<span class="integer">2</span>);
          <span class="keyword">switch</span> (<span class="predefined-constant">true</span>) {
              <span class="keyword">case</span> (<span class="local-variable">$nb</span> == <span class="integer">1</span>):
                  <span class="keyword">if</span> (<span class="local-variable">$fem</span> == <span class="string"><span class="delimiter">'</span><span class="content">ة</span><span class="delimiter">'</span></span>) {
                      <span class="local-variable">$un</span> = _T(<span class="local-variable">$chaine_un</span>) . <span class="string"><span class="delimiter">'</span><span class="content"> واحدة</span><span class="delimiter">'</span></span>;
                  } <span class="keyword">else</span> {
                      <span class="local-variable">$un</span> = _T(<span class="local-variable">$chaine_un</span>) . <span class="string"><span class="delimiter">'</span><span class="content"> واحد</span><span class="delimiter">'</span></span>;
                  }
                  <span class="keyword">return</span> <span class="local-variable">$un</span>;
                  <span class="keyword">break</span>;
              <span class="keyword">case</span> (<span class="local-variable">$nb</span> == <span class="integer">2</span>):
                  <span class="keyword">if</span> (<span class="local-variable">$fem</span> == <span class="string"><span class="delimiter">'</span><span class="content">ة</span><span class="delimiter">'</span></span>) {
                      <span class="local-variable">$deux</span> = <span class="predefined">rtrim</span>(_T(<span class="local-variable">$chaine_un</span>), <span class="local-variable">$fem</span>) . <span class="string"><span class="delimiter">'</span><span class="content">تان</span><span class="delimiter">'</span></span>;
                  } <span class="keyword">else</span> {
                      <span class="local-variable">$deux</span> = _T(<span class="local-variable">$chaine_un</span>) . <span class="string"><span class="delimiter">'</span><span class="content">ان</span><span class="delimiter">'</span></span>;
                  }
                  <span class="keyword">return</span> <span class="local-variable">$deux</span>;
                  <span class="keyword">break</span>;
              <span class="keyword">case</span> (<span class="local-variable">$nb</span> ><span class="integer">2</span> &#38;&#38; <span class="local-variable">$nb</span> &lt; <span class="integer">11</span>):
                  <span class="keyword">return</span> _T(<span class="local-variable">$chaine_plusieurs</span>, <span class="local-variable">$vars</span>);
                  <span class="keyword">break</span>;
              <span class="keyword">default</span>:
                  <span class="local-variable">$chaine_un</span> = <span class="local-variable">$nb</span> . <span class="string"><span class="delimiter">'</span><span class="content"> </span><span class="delimiter">'</span></span> . <span class="local-variable">$chaine_un</span>;
                  <span class="keyword">return</span> _T(<span class="local-variable">$chaine_un</span>, <span class="local-variable">$vars</span>);
          }
      } <span class="keyword">else</span> {
          <span class="keyword">if</span> (<span class="local-variable">$nb</span> > <span class="integer">1</span>) {
              <span class="keyword">return</span> _T(<span class="local-variable">$chaine_plusieurs</span>, <span class="local-variable">$vars</span>);
          } <span class="keyword">else</span> {
              <span class="keyword">return</span> _T(<span class="local-variable">$chaine_un</span>, <span class="local-variable">$vars</span>);
          }
      }
  }
  </span>
  Télécharger