Recherche avancée

Sur d’autres sites (5161)

• Show portrait video to landscape on Videojs player as HLS ffmpeg Laravel

  11 décembre 2020, par TwistCode

  I am currently using the ffmpeg library through laravel sdk. For the landscape videos I have no problem with the scaling filters application, but with the portrait videos I need the video to look like the thumbnail below :

  


  

  


  But when I play the video, the player is distorted.

  


  

  


  Note : It should be noted that when I work with horizontal scales, the player looks good, but the video is distorted.

  


  

  


  

  


  this is my PHP Laravel code implementation

  


              FFMpeg::FromDisk('local')->open($this->media)
            ->exportForHLS()
            ->setSegmentLength(6) // optional
            /*
            ->addFormat($lowBitrate, function ($media) {
                $media->addFilter(function ($filters, $in, $out) {
                    $filters->custom($in, 'scale=854x480,setsar=1,setdar=16:9', $out); // $in, $parameters, $out

                });
            })*/
            // Portrait test
            ->addFormat($lowBitrate, function ($media) { 
                $media->addFilter(function ($filters, $in, $out) {
                    // $filters->custom($in, "scale='w=min(720,trunc((480*33/40*dar)/2+0.5)*2):h=min(480,trunc((704*40/33/dar)/2+0.5)*2)',pad='w=720:h=480:x=(ow-iw)/2:y=(oh-ih)/2',setsar='r=40/33'", $out); // $in, $parameters, $out
                    $filters->custom($in, "scale=239:-1", $out); // $in, $parameters, $out
                });
            })
            /*
            ->addFormat($midBitrate, function ($media) {
                $media->scale(1280, 720);
            })
            ->addFormat($highBitrate, function ($media) {
                $media->scale(1920, 1080);
            })*/
            ->save("public/hls/$video->id/$video->hash_name.m3u8");


  


  This is the command that runs at the server level for portrait videos.

  


  


  [2020-12-10 17:48:17] local.INFO : ffmpeg running command
'/usr/bin/ffmpeg' '-y' '-threads' '12' '-i'
'/home/vagrant/homesteadprojects/maquillate/storage/app/videos_directory/pexels-cottonbro-6054875.mp4'
'-filter_complex' '[0]scale=640 :-2[v0]' '-map' '[v0]' '-vcodec'
'libx264' '-b:v' '1200k' '-g' '48' '-hls_playlist_type' 'vod'
'-hls_time' '6' '-hls_segment_filename'
'/home/vagrant/homesteadprojects/maquillate/storage/app/public/hls/35/NXp9waz4AO5Q14Lu6T3JbjSRY496RrtiPGIz6IOJ_0_1200_%05d.ts'
'-acodec' 'aac' '-b:a' '128k'
'/home/vagrant/homesteadprojects/maquillate/storage/app/public/hls/35/NXp9waz4AO5Q14Lu6T3JbjSRY496RrtiPGIz6IOJ_0_1200.m3u8'

  


  


  I don't really know if my problem is at the server or frontend level, but I would greatly appreciate any contribution.

  


• Using ffmpeg with libfdk-aac, encoding HE-AAC v1 and mono actually, but in decoding ffmpeg show HE-AAC v2 and stereo [closed]

  13 novembre 2024, par olojzyg

  ffmpeg encode command :

  


  


  ffmpeg -i aac_128000_f32le_22050_1.wav -c:a libfdk_aac -profile:a
aac_he -b:a 64k -channels 1 test.aac

  


  


  output :

  


  [aist#0:0/pcm_s16le @ 000001d38ecfe340] Guessed Channel Layout: mono
  Input #0, wav, from 'aac_128000_f32le_22050_1.wav':   Duration: 00:00:06.48, bitrate: 359 kb/s
  Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 22050 Hz, mono, s16, 352 kb/s
  Stream mapping:
  Stream #0:0 -> #0:0 (pcm_s16le (native) -> aac (libfdk_aac)) 
  Press [q] to stop, [?] for help Output #0, adts, to 'test.aac':
  Metadata:
        encoder         : Lavf61.7.100   
        Stream #0:0: Audio: aac (HE-AAC), 22050 Hz, mono, s16, 64 kb/s
          Metadata:
            encoder         : Lavc61.19.100 libfdk_aac 
[out#0/adts @ 000001d38ecf8680] video:0KiB audio:53KiB subtitle:0KiB other streams:0KiB global headers:0KiB muxing overhead: 0.000000%
 size=      53KiB time=00:00:06.47 bitrate=  67.0kbits/s speed= 296x


  


  but decode this test.aac, I think HE-AAC and mono is corrent, but it show HE-AAC v2 and stereo, why ?
decode command :

  


  


  ffmpeg -i test.aac -f null -

  


  


  decode output :

  


  [aac @ 0000020ffcab3d40] Estimating duration from bitrate, this may be inaccurate
 Input #0, aac, from 'test.aac':   Duration: 00:00:06.78, bitrate: 63 kb/s
 Stream #0:0: Audio: aac (HE-AACv2), 22050 Hz, stereo, fltp, 63 kb/s
 Stream mapping:
 Stream #0:0 -> #0:0 (aac (native) -> pcm_s16le (native))
 Press [q] to stop, [?] for help Output
#0, null, to 'pipe:':
   Metadata:
    encoder         : Lavf61.7.100
   Stream #0:0: Audio: pcm_s16le, 22050 Hz, stereo, s16, 705 kb/s
      Metadata:
        encoder         : Lavc61.19.100 pcm_s16le
[out#0/null @ 0000020ffcac8bc0] video:0KiB audio:584KiB subtitle:0KiB other streams:0KiB global headers:0KiB muxing overhead: unknown
size=N/A time=00:00:06.78 bitrate=N/A speed=1.6e+03x


  


  what happened ? test.aac is also displayed as 2 channels in Audition. But 1 channel is displayed in MediaInfo, and ADTS header is corrent :

  


  


  channel_configuration : 1 (0x1) - (3 bits)

  


  


• fate : update fate tests after master:291ad12ea2d1 : ffprobe : show probe_score in the...

  1er septembre 2013, par Michael Niedermayer

  fate : update fate tests after master:291ad12ea2d1 : ffprobe : show probe_score in the format section
  Signed-off-by : Michael Niedermayer <michaelni@gmx.at>
  

  • [DH] tests/ref/fate/ffprobe_compact
  • [DH] tests/ref/fate/ffprobe_csv
  • [DH] tests/ref/fate/ffprobe_default
  • [DH] tests/ref/fate/ffprobe_flat
  • [DH] tests/ref/fate/ffprobe_ini
  • [DH] tests/ref/fate/ffprobe_json
  • [DH] tests/ref/fate/ffprobe_xml