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• Convert SWF file to FLV with FFMPEG & getting error "could not find codec parameters"

  30 mars 2013, par Ritesh

  Hi I am trying to convert SWF file to FLV, but i am getting same eror

  C:\Users\Administrator>C:/ffmpeg/ffmpeg.exe -i C:/xampplite/htdocs/ffmpeg/1.swf \
  
   C:/xampplite/htdocs/ffmpeg/file1.flv 
  
  
  
  FFmpeg version SVN-r16573, Copyright (c) 2000-2009 Fabrice Bellard, et al. 
  
  configuration: --extra-cflags=-fno-common --enable-memalign-hack --enable-pthreads 
  
  --enable-libmp3lame --enable-libxvid --enable-libvorbis --enable-libtheora 
  
  --enable-libspeex --enable-libfaac --enable-libgsm --enable-libx264 
  
  --enable-libschroedinger --enable-avisynth --enable-swscale --enable-gpl 
  
    libavutil 49.12. 0 / 49.12. 0 
  
    libavcodec 52.10. 0 / 52.10. 0 
  
    libavformat 52.23. 1 / 52.23. 1 
  
    libavdevice 52. 1. 0 / 52. 1. 0 
  
    libswscale 0. 6. 1 / 0. 6. 1 
  
  built on Jan 13 2009 02:57:09, gcc: 4.2.4 
  
  C:/xampplite/htdocs/ffmpeg/1.swf: could not find codec parameters

  Please solve this problem, what i am doing wrong ??

• Convert H.264 Annex B to MPEG-TS

  4 juin 2014, par Lane

  SO...

  I have RAW H.264 video data captured via RTSP in a local file and I am attempting to playback the video in a Java FX application. In order to do this, I need to use Http Live Streaming.

  I have successfully prototyped a Java FX architecture that can play a video via HLS with a local server using a local folder containing a .m3u8 (HLS index) file and collection of .ts (MPEG-TS) files. The last piece for me is to replace the .ts files with .264 / .h264 files and in the local server, perform the conversion / wrapping of the H.264 Annex B data into MPEG-TS.

  I am having trouble figuring out what is required to get H.264 Annex B into MPEG-TS. I have found the following information...

  "Annex B is commonly used in live and streaming formats such as
  transport streams..."

  szatmary.org/blog/25

  "Annex B of of the document specifies one such format, which wraps NAL
  units in a format resembling a traditional MPEG video elementary
  stream, thus making it suitable for use with containers like MPEG
  PS/TS unable to provide the required framing..."

  wiki.multimedia.cx/ ?title=H.264

  "Java FX supports a number of different media types. A media type is
  considered to be the combination of a container format and one or more
  encodings. In some cases the container format might simply be an
  elementary stream containing the encoded data."

  docs.oracle.com/javafx/2/api/javafx/scene/media/package-summary.html

  "Use the CODECS attribute of the EXT-X-STREAM-INF tag. When this
  attribute is present, it must include all codecs and profiles required
  to play back the stream..."

  developer.apple.com/library/ios/documentation/networkinginternet/conceptual/streamingmediaguide/FrequentlyAskedQuestions/FrequentlyAskedQuestions.html

  It seems like I am missing something simple around Elementary and Transport Streams. I have used ffmpeg to convert my H.264 file into a TS file and try to understand the differences. I have an idea of the approximate format differences, but I am still lacking on the details to do it. Does anyone have a link showcasing this or know something simple about how to serve H.264 Annex B data over MPEG-TS ?

  I am not looking to use a tool, I need to have a custom file format locally where I parse out the H.264 Annex B data and perform the format change in memory, on the fly. I know of a way to use ffmpeg with pipes to accomplish this, but I do not want to have any dependencies and performance is important.

• Convert video file to TIFF with ffmpeg.dll or avcodec.dll ? Is "on-the-fly" possible ?

  27 octobre 2011, par Berschi

  I want to create a program, which gets a video-file from Qt, converts that video file to TIFF-files and sends them to an algorithm which handles these TIFF-Files.
  My questions :

  • is it possible with ffmpeg or avcodec not to convert a video-file to TIFF-files first on harddrive and send them to the algorithm after that, but to convert frame for frame and send it to the algorithm right away ?
  • The more important question : Is it possible to do that not with an external process with ffmpeg.exe, but with ffmpeg.dll ? Or is it only possible with avcodec.dll ? (It doesn't have to be "on-the-fly" like at my point above) How can I create a ffmpeg.dll with header and lib ?