Recherche avancée

Sur d’autres sites (9126)

• FFMPEG HLS stream for Android and IOS

  26 février 2015, par Poda

  I’m trying to stream to mobile devices with ffmpeg and apache2.2 but I haven’t been successful.

  I used this command to create the segments and the playlist :

  ffmpeg -i http://x.x.x.x:8080 -codec:v libx264 -r 25 -pix_fmt yuv420p -profile:v baseline -level 3 -b:v 500k -s 640x480 -codec:a aac -strict experimental -ac 2 -b:a 128k -movflags faststart -flags -global_header -map 0 -f hls  -hls_time 10 -hls_list_size 5 -hls_allow_cache 0 -sc_threshold 0 -hls_flags delete_segments -hls_segment_filename out%05d.ts list.m3u8

  The source is a http stream which is streamed by VLC media player.

  Example content of the list.m3u8 file :

  #EXTM3U
  
  #EXT-X-VERSION:3
  
  #EXT-X-ALLOW-CACHE:NO
  
  #EXT-X-TARGETDURATION:10
  
  #EXT-X-MEDIA-SEQUENCE:89
  
  #EXTINF:10.000000,
  
  out00089.ts
  
  #EXTINF:10.000000,
  
  out00090.ts
  
  #EXTINF:10.000000,
  
  out00091.ts
  
  #EXTINF:10.000000,
  
  out00092.ts
  
  #EXTINF:9.000000,
  
  out00093.ts
  
  #EXT-X-ENDLIST

  I created another playlist file - playlist.m3u8 :

  #EXTM3U
  
  #EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=512000
  
  http://x.x.x.x/list.m3u8

  If I open this (playlist.m3u8) file in VLC media player then it plays.
  It also works in desktop chrome and desktop firefox browsers with Video-js plugin flash fallback.

  I set the correct MIME types to the .ts and .m3u8 files in .htaccess file :

  AddType application/x-mpegURL .m3u8
  
  AddType video/MP2T .ts

  FFprobe output for playlist.m3u8 :

  Input #0, hls,applehttp, from 'playlist.m3u8':
  
      Duration: N/A, start: 1.400000, bitrate: N/A
  
      Program 0
  
      Metadata: variant_bitrate : 512000
  
  Stream #0:0: Video: h264 (Constrained Baseline) ([27][0][0][0] / 0x001B), yuv420p, 640x480 [SAR 1:1 DAR 4:3], 25 fps, 25 tbr, 90k tbn, 50 tbc
  
  Metadata: variant_bitrate : 512000
  
  Stream #0:1: Audio: aac (LC) ([15][0][0][0] / 0x000F), 44100 Hz, stereo, fltp, 128 kb/s
  
  Metadata: variant_bitrate : 512000

  What should I do to make it work ?

  UPDATE

  It works if I provide a link to list.m3u8 file (created by ffmpeg).

• mp4 video file generated using ffmpeg, play on desktop but doesn't play on device

  9 mai 2014, par Nikesh

  I am generating a video that converts images into .mp4 video file. Every thing works fine. File is also generated as mp4 but the file doesn’t run on android device, says cannot play video.

  Please find the attached sample code which convert single jpeg file into video (.mp4)

  Please help me to resolve this issue. Thanks.

  JNIEXPORT void JNICALL Java_roman10_ffmpegtst_VideoBrowser_videoExample(JNIEnv *pEnv, jobject pObj, char* imagefile,char* videoFile)
  
  {
  
  avcodec_init();
  
  av_register_all();
  
  avcodec_register_all();
  
  
  
  AVCodecContext          *pOCtx= NULL;
  
  AVCodec                 *pOCodex = NULL;
  
  LOGE(10,"Start videoExample");
  
  pOCodex = avcodec_find_encoder(AV_CODEC_ID_MPEG1VIDEO);
  
  
  
  if (!pOCodex) {
  
      LOGE(10,"Cannot find encoder %s", pOCodex);
  
      exit(1);
  
  }
  
  
  
  pOCtx= avcodec_alloc_context3(pOCodex);
  
  
  
  uint8_t *outbuf;
  
  int i, out_size;
  
  
  
  pOCtx->bit_rate = 400000;
  
  pOCtx->width = 640;
  
  pOCtx->height = 480;
  
  AVRational rational = {1,25};
  
  pOCtx->time_base= rational;
  
  pOCtx->gop_size = 10; /* emit one intra frame every ten frames */
  
  pOCtx->max_b_frames=1;
  
  pOCtx->pix_fmt = AV_PIX_FMT_YUV420P;
  
  
  
  LOGE(10,"Start avcodec_open2");
  
  int ret = avcodec_open2(pOCtx,pOCodex,NULL);
  
  if(ret < 0)
  
  {
  
       return;
  
  }
  
  LOGE(10,"End avcodec_open2");
  
  AVFormatContext         *pIFormatCtx = NULL;
  
   ret = avformat_open_input(&pIFormatCtx, imagefile, NULL, NULL);
  
  if(ret < 0)
  
  {
  
      //Cant't open jpg file
  
      return;
  
  }
  
  av_dump_format(pIFormatCtx, 0, imagefile, 0);
  
  
  
  AVCodecContext          *pICodecCtx;  //output codec context
  
  pICodecCtx = pIFormatCtx->streams[0]->codec;
  
  /*pICodecCtx->width = 640;
  
  pICodecCtx->height = 480;
  
  pICodecCtx->pix_fmt = PIX_FMT_YUV420P;*/
  
  
  
  
  
  AVCodec *pICodec = avcodec_find_decoder(pICodecCtx->codec_id); //output codec
  
   // Open codec
  
  ret = avcodec_open2(pICodecCtx, pICodec,NULL);
  
  if(ret < 0)
  
  {
  
      //Can't find the decoder
  
      return;
  
  }
  
  
  
  AVFrame *pIFrame = avcodec_alloc_frame();
  
  if (!pIFrame)
  
  {
  
      //Can't alloc the input frame
  
      return ;
  
  }
  
  
  
  
  
  int bufSize = avpicture_get_size(AV_PIX_FMT_YUVJ420P, pICodecCtx->width, pICodecCtx->height);
  
  uint8_t *buffer = (uint8_t *) av_malloc(bufSize * sizeof(uint8_t));
  
  
  
  avpicture_fill((AVPicture *) pIFrame, buffer, AV_PIX_FMT_YUVJ420P, pICodecCtx->width, pICodecCtx->height);
  
  
  
  FILE *outputFile;
  
  
  
  outputFile = fopen(videoFile, "w+");
  
  if (!outputFile) {
  
      LOGE(10,"could not open ");
  
      exit(1);
  
  }
  
  
  
  int outbuf_size = 100000;
  
  outbuf = (uint8_t*)malloc(outbuf_size);
  
  
  
  AVPacket packet;
  
  int frameFinished;
  
  int framesNumber = 0;
  
  while (av_read_frame(pIFormatCtx, &packet) >= 0)
  
  {
  
      if(packet.stream_index != 0)
  
          continue;
  
  
  
      ret = avcodec_decode_video2(pICodecCtx, pIFrame, &frameFinished, &packet);
  
      if (ret > 0)
  
      {
  
          pIFrame->quality = 4;
  
  
  
          for(i=0;i<25;i++) {
  
              fflush(stdout);
  
              /* encode the image */
  
              out_size = avcodec_encode_video(pOCtx, outbuf, outbuf_size, pIFrame);
  
              fwrite(outbuf, 1, out_size, outputFile);
  
          }
  
      }
  
  }
  
  
  
  /* get the delayed frames */
  
  for(; out_size; i++) {
  
      fflush(stdout);
  
      out_size = avcodec_encode_video(pOCtx, outbuf, outbuf_size, NULL);
  
      fwrite(outbuf, 1, out_size, outputFile);
  
  }
  
  
  
  /* add sequence end code to have a real mpeg file */
  
  outbuf[0] = 0x00;
  
  outbuf[1] = 0x00;
  
  outbuf[2] = 0x01;
  
  outbuf[3] = 0xb7;
  
  fwrite(outbuf, 1, 4, outputFile);
  
  fclose(outputFile);
  
  free(outbuf);
  
  
  
  avcodec_close(pOCtx);
  
  av_free(pOCtx);
  
  av_free(pIFrame);
  
  }

• Android HLS plays first segment then only audio

  1er décembre 2014, par Chris Recalis

  I’m having difficulty playing HLS on Android where only the audio is playing. The stream will play for the first video segment and then turn into an audio only stream. Here is a sample link https://clipter.com/c/aymels8/hls.m3u8

  hls.m3u8

  #EXTM3U
  
  #EXT-X-VERSION:3
  
  #EXT-X-PLAYLIST-TYPE:VOD
  
  #EXT-X-TARGETDURATION:9
  
  #EXT-X-ALLOW-CACHE:YES
  
  #EXTINF:8.5,
  
  https://d3ilpkc014v0xn.cloudfront.net/f5305de24/2103cb31c3078eb5edd5c325108f6d6f.ts?1416176849
  
  #EXTINF:7.33,
  
  https://d3ilpkc014v0xn.cloudfront.net/f5305de24/1214ef63a031e3d3229893fdb60eea86.ts?1416176848
  
  #EXTINF:8.5,
  
  https://d3ilpkc014v0xn.cloudfront.net/f5305de24/99c47c49548521b0fff05119a5c63908.ts?1416176889
  
  #EXTINF:8.43,
  
  https://d3ilpkc014v0xn.cloudfront.net/f5305de24/143acefc2149f2572ddcc08abb705736.ts?1416176988
  
  #EXTINF:4.43,
  
  https://d3ilpkc014v0xn.cloudfront.net/f5305de24/11c92b5084971e0cf4768f958e97f936.ts?1416177431
  
  #EXTINF:6.9,
  
  https://d3ilpkc014v0xn.cloudfront.net/f5305de24/10ab810169fb684469f736a53f2cba3a.ts?1416177545
  
  #EXTINF:8.57,
  
  https://d3ilpkc014v0xn.cloudfront.net/f5305de24/88b037af27757e4805d7f1ed0496cbb8.ts?1416178434
  
  #EXTINF:2.1,
  
  https://d3ilpkc014v0xn.cloudfront.net/f5305de24/4a8cda13ea40228de4638dee9985b8b0.ts?1416178513
  
  #EXTINF:8.47,
  
  https://d3ilpkc014v0xn.cloudfront.net/f5305de24/e6fa0135987c86d323f1e994bcd2b429.ts?1416179772
  
  #EXTINF:8.38,
  
  https://d3ilpkc014v0xn.cloudfront.net/f5305de24/9a08aba19b45601c83854216bb07a6b6.ts?1416604373
  
  #EXT-X-ENDLIST

  output from ffprobe

  ffprobe version 2.3.3 Copyright (c) 2007-2014 the FFmpeg developers
  
    built on Aug 25 2014 19:47:15 with Apple LLVM version 5.1 (clang-503.0.40) (based on LLVM 3.4svn)
  
    configuration: --prefix=/usr/local/Cellar/ffmpeg/2.3.3 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-nonfree --enable-hardcoded-tables --enable-avresample --enable-vda --cc=clang --host-cflags= --host-ldflags= --enable-libx264 --enable-libfaac --enable-libmp3lame --enable-libxvid
  
    libavutil      52. 92.100 / 52. 92.100
  
    libavcodec     55. 69.100 / 55. 69.100
  
    libavformat    55. 48.100 / 55. 48.100
  
    libavdevice    55. 13.102 / 55. 13.102
  
    libavfilter     4. 11.100 /  4. 11.100
  
    libavresample   1.  3.  0 /  1.  3.  0
  
    libswscale      2.  6.100 /  2.  6.100
  
    libswresample   0. 19.100 /  0. 19.100
  
    libpostproc    52.  3.100 / 52.  3.100
  
  Input #0, mpegts, from '2103cb31c3078eb5edd5c325108f6d6f.ts?1416176849':
  
    Duration: 00:00:08.53, start: 1.400000, bitrate: 1236 kb/s
  
    Program 1 
  
      Metadata:
  
        service_name    : Service01
  
        service_provider: FFmpeg
  
      Stream #0:0[0x100]: Video: h264 (Constrained Baseline) ([27][0][0][0] / 0x001B), yuv420p, 480x480, 30 fps, 30 tbr, 90k tbn, 60 tbc
  
      Stream #0:1[0x101](und): Audio: aac ([15][0][0][0] / 0x000F), 44100 Hz, mono, fltp, 67 kb/s