Recherche avancée

Sur d’autres sites (9007)

• Mp4 to HLS using ffmpeg

  19 juin 2015, par Vishnu Kumar. S

  I’m trying to convert a local .mp4 video to HLS using ffmpeg in an iOS app. I have integrated the ffmpeg wrapper using pods and generated all the segmented .ts files and the m3u8 file, but some of the .ts file segments are not listed in the .m3u8 playlist file as shown below. It is always listing the last 5 video segments.

  #EXTM3U
  
  #EXT-X-VERSION:3
  
  #EXT-X-TARGETDURATION:2
  
  #EXT-X-MEDIA-SEQUENCE:13
  
  #EXTINF:2,
  
  out13.ts
  
  #EXTINF:1,
  
  out14.ts
  
  #EXTINF:2,
  
  out15.ts
  
  #EXTINF:2,
  
  out16.ts
  
  #EXTINF:1,
  
  out17.ts
  
  #EXT-X-ENDLIST

  I used the following codes to generate the HLS.

      FFmpegWrapper *wrapper = [[FFmpegWrapper alloc] init];
  
      [wrapper convertInputPath:inputFilePath outputPath:outputFilePath options:nil progressBlock:^(NSUInteger bytesRead, uint64_t totalBytesRead, uint64_t totalBytesExpectedToRead) {
  
  
  
      } completionBlock:^(BOOL success, NSError *error) {
  
          success?NSLog(@"Success...."):NSLog(@"Error : %@",error.localizedDescription);
  
      }];

  Is there any other methods to do this ?

• avformat/hlsenc : added HLS encryption

  15 juin 2015, par Christian Suloway

  avformat/hlsenc : added HLS encryption
  Added HLS encryption with -hls_key_info_file <key_info_file> option. The
  
  first line of key_info_file specifies the key URI written to the
  
  playlist. The key URL is used to access the encryption key during
  
  playback. The second line specifies the path to the key file used to
  
  obtain the key during the encryption process. The key file is read as a
  
  single packed array of 16 octets in binary format. The optional third
  
  line specifies the initialization vector (IV) as a hexadecimal string to
  
  be used instead of the segment sequence number (default) for encryption.
  
  Changes to key_info_file will result in segment encryption with the new
  
  key/IV and an entry in the playlist for the new key URI/IV.
  Key info file format :
  
  <key URI>
  
  <key file path>
  
  <IV> (optional)
  Example key URIs :
  
  http://server/file.key
  
  /path/to/file.key
  
  file.key
  Example key file paths :
  
  file.key
  
  /path/to/file.key
  Example IV :
  
  0123456789ABCDEF0123456789ABCDEF
  Example :
  
  ffmpeg -f lavfi -i testsrc -c:v h264 -hls_key_info_file file.keyinfo
  
  foo.m3u8
  file.keyinfo :
  
  http://server/file.key
  
  /path/to/file.key
  
  0123456789ABCDEF0123456789ABCDEF
  Example shell script :
  
  BASE_URL=$1 :-’.’
  
  openssl rand 16 > file.key
  
  echo $BASE_URL/file.key > file.keyinfo
  
  echo file.key >> file.keyinfo
  
  echo $(openssl rand -hex 16) >> file.keyinfo
  
  ffmpeg -f lavfi -re -i testsrc -c:v h264 -hls_flags delete_segments \
  
    -hls_key_info_file file.keyinfo out.m3u8
  
  — 
  Signed-off-by : Christian Suloway <csuloway@globaleagleent.com>
  
  Signed-off-by : Dan Dennedy <dan@dennedy.org>
  
  Signed-off-by : Michael Niedermayer <michaelni@gmx.at>
  

  • [DH] doc/muxers.texi
  • [DH] libavformat/hlsenc.c

• Ffmpeg - Incorrect codec parameters

  29 avril 2015, par DevPM

  I always got the following error, when trying to connect ffmpeg with ffserver :

  But let’s start with the theory :
  I want to Broadcast a stream, which is already existing in the internet (to able to do some analytic stuff on the stream).
  So my idea is as follows :
  i have one ubuntu-server (currently ubuntu-desktop version 12.x on a virtual machine, i will change it to a real server later...).
  and i want to run on the server :
   ffmpeg, which should record the live-stream (and saves it locally)
   ffserver, for broadcasting the same live-stream, using the rtp protocoll (because of the timestamp-header in the protocoll).
  so if i understoot the documentation correctly, this is my idea :
  - start ffserver from linux-terminal
  (ffserver -f ~/Desktop/ffserver.conf)
  - start ffmpeg and connect to the feed of ffserver
  (ffmpeg -re -i "http://InternetStreamer.sdp/playlist.m3u8" -vcodec libx264 -s 320x240 -pix_fmt yuv420p -vb 200000 -minrate 200000 -maxrate 200000 -bufsize 2000000 -acodec libmp3lame -ab 128k -ar 44100 -f rtp -an http://localhost:8090/feed1.ffm)
  (I am getting the Stream from the URL "http://InternetStreamer.sdp/playlist.m3u8" and want sent it to ffserver(also i want to save it locally for backup later...))

  now when i start ffmpeg i get the following error :
  Could not write header for output file #0 (incorrect codec parameters ?)

  Last thing to say is that is very important to broadcast the stream with RTP-Protocoll. (Best case would be directly from ffmpeg, because then the RTP-headers are as set as early as possible)

  my server.conf looks like follows :

  Port 8090
  
  BindAddress 0.0.0.0
  
  MaxHTTPConnections 2000
  
  MaxClients 1000
  
  MaxBandwidth 1000
  
  CustomLog -
  
  NoDaemon
  
  <feed>
  
  #file ffmpeg http://localhost:8090/feed1.ffm
  
  #Format rtp
  
  #File /tmp/feed1.ffm
  
  #FileMaxSize 200K
  
  File /tmp/cam1.ffm
  
  ACL allow 127.0.0.1
  
  #VideoFrameRate  25
  
  </feed>
  
  <stream>
  
  Feed feed1.ffm
  
  Format rtp
  
  #VideoFrameRate  25
  
  #Hier: alle parameter von ffmpeg angeben!
  
  #-re -i "http://apasfiisl.apa.at/ipad/orf2_q4a/orf.sdp/playlist.m3u8" 
  
  #-vcodec libx264 
  
  #-s 320x240 
  
  #-pix_fmt yuv420p 
  
  #-vb 200000 
  
  #-minrate 200000 
  
  #-maxrate 200000 
  
  #-bufsize 2000000 
  
  #-acodec libmp3lame 
  
  #-ab 128k 
  
  #-ar 44100 
  
  #AudioBitRate 32
  
  #AudioChannels 1
  
  #AudioSampleRate 44100
  
  #VideoBitRate 64
  
  #VideoBufferSize 40
  
  VideoFrameRate 3
  
  #VideoSize 160x128
  
  #VideoGopSize 12
  
  </stream>
  
  
  
  ##################################################################
  
  # Special streams
  
  # Server status
  
  <stream>
  
  Format status
  
  
  
  # Only allow local people to get the status
  
  ACL allow localhost
  
  ACL allow 192.168.0.0 192.168.255.255
  
  
  
  #FaviconURL http://pond1.gladstonefamily.net:8080/favicon.ico
  
  </stream>
  
  
  
  # Redirect index.html to the appropriate sites
  
  <redirect>
  
  URL http://www.ffmpeg.org/
  
  </redirect>

  ####################################################################
  This is the full console output from ffmpeg :
  ####################################################################

   The ffmpeg program is only provided for script compatibility and will be removed
  
  in a future release. It has been deprecated in the Libav project to allow for
  
  incompatible command line syntax improvements in its replacement called avconv
  
  (see Changelog for details). Please use avconv instead.
  
  [applehttp @ 0x91fa240] max_analyze_duration reached
  
  [applehttp @ 0x91fa240] Estimating duration from bitrate, this may be inaccurate
  
  
  
  Seems stream 1 codec frame rate differs from container frame rate: 180000.00 (180000/1) -> 25.00 (25/1)
  
  Input #0, applehttp, from 'http://InternetStreamer.sdp/playlist.m3u8':
  
    Duration: N/A, start: 61442.038956, bitrate: N/A
  
      Stream #0.0: Data: [21][0][0][0] / 0x0015
  
      Metadata:
  
        variant_bitrate : 831114
  
      Stream #0.1: Video: h264 (Main), yuvj420p, 640x360 [PAR 1:1 DAR 16:9], 25 tbr, 90k tbn, 180k tbc
  
      Metadata:
  
        variant_bitrate : 831114
  
      Stream #0.2: Audio: aac, 44100 Hz, stereo, s16
  
      Metadata:
  
        variant_bitrate : 831114
  
  [buffer @ 0x9215720] w:640 h:360 pixfmt:yuvj420p
  
  [scale @ 0x9434300] w:640 h:360 fmt:yuvj420p -> w:320 h:240 fmt:yuv420p flags:0x4
  
  [libx264 @ 0x923a560] using SAR=4/3
  
  [libx264 @ 0x923a560] using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle SSE4.2
  
  [libx264 @ 0x923a560] profile Main, level 1.3
  
  Output #0, rtp, to 'http://localhost:8090/feed1.ffm':
  
    Metadata:
  
      encoder         : Lavf53.21.1
  
      Stream #0.0: Video: libx264, yuv420p, 320x240 [PAR 4:3 DAR 16:9], q=-1--1, 200 kb/s, 90k tbn, 25 tbc
  
      Metadata:
  
        variant_bitrate : 831114
  
  Stream mapping:
  
    Stream #0.1 -> #0.0
  
  Could not write header for output file #0 (incorrect codec parameters ?)

  Kind Regards
  DevPM