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• ffmpeg rtmp webcam live stream iphone/pad segment size too big

  1er février 2013, par Foo Barazz

  I'm transcoding a rtmp stream from a red5 server for use to live stream on a iphone or ipad device. I built latest ffmpeg version from git repo using the built in segmenter to create .ts files and m3u8 playlist file using the following :

  ffmpeg -probesize 50k -i "rtmp://localhost/oflaDemo/red5StreamDemo live=1" \
  
  -c:v libx264 -b:v 128k -vpre ipod320 -flags -global_header -map 0 \
  
  -f segment -segment_time 3 -segment_list foo.m3u8 -segment_list_flags +live \
  
  -segment_list_type m3u8 -segment_list_size 5 -segment_format mpegts foo%d.ts

  This works fine, but I can't get the segment size smaller than about 12 sec even set to 3 (-segment_time 3). It seems to be caused by libx264 vcodec.
  Am I missing any flag ?

  By the way, you can simple run the ffmpeg command above successfully by starting red5 SimpleBroadcaster example.

• Unable to play video from firebase cloud storage download url on Iphone Safari [closed]

  26 janvier 2024, par Acid Coder

                      getDownloadURL(ref)
                        .then(url => {
                            //... save the url to state
                        })


  


  front end : React

  


                              &#xA;                                <source src="{videoURL}" type="video/mp4"></source>&#xA;                            &#xA;

  


  work fine on PC and Android, but on Iphone Safari, only 1 out of 10 videos can be played

  


  

  


  all video are from the same source, going through same compression, from mp4 to mp4

  


  import ffmpeg from 'fluent-ffmpeg'

        ffmpeg(inputPath)
            .output(outputPath)
            .videoCodec('libx264')
            .audioCodec('aac')
            .on('end', () => {
                // ...
            })
            .on('error', err => {
                // ...
            })
            .run()


  


• Live Stream using .m3u8 and .ts files with iPhone as server

  26 février 2015, par Bhumit

  I am trying to accomplish a task to live stream from iPhone camera. I have done some research and found that i can use .m3u8 files for streaming live video with should contain .ts(Mpeg-2) files .

  Now the file which i have on my iPhone is .mp4 file and it does not work with .m3u8, so i figured out i will have to convert .mp4 to .ts for that , but i have not succeeded in doing so.

  I found that it is possible to convert video ffmpeg lib as mentioned in this article here. I have successfully imported ffmpeg library but not able figure out how can i use it to convert a video as i am using this for first time.

  One another thing apple documentation says

  There are a number of hardware and software encoders that can create
  MPEG-2 transport streams carrying MPEG-4 video and AAC audio in real
  time.

  What is being said here ? is there any other way i can use .mp4 files for live streaming without converting them from iOS ?

  Let me know if i am not clear, i can provide more information .Any suggestion is appreciated. I would like to know am i on a right path here ?

  EDIT

  I am adding more info to my question, so basically what i am asking is , we can convert .mp4 video to .ts using following command

  ffmpeg -i file.mp4 -acodec libfaac -vcodec libx264 -an -map 0 -f segment -segment_time 10 -segment_list test.m3u8 -segment_format mpegts -vbsf h264_mp4toannexb -flags -global_header stream%05d.ts

  How can i use ffmpeg library to do what this command does in iOS.