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• How to Combine two Live Streams(mjpeg + pcm) for ffmpeg or ffplay playback?

  7 September 2022, by sharimken

  What's the correct command to combine two live streams (mjpeg + pcm) for playback?
Currently, I have to playback them separately via ffplay. Is it possible to combine them as one for playback?

  


  //video stream mjpeg
ffplay "udp://127.0.0.1:3001"

//audio stream raw pcm
ffplay -f s16le -ac 1 -ar 11025 "udp://127.0.0.1:3002"


  


  I found some example commands suggested by others, but not sure how to implement for my above use case. https://superuser.com/questions/1410764/how-to-play-two-remote-streams-simultaneously

  


  ffmpeg -headers X -i .. -headers Y -i .. -c copy -f nut - | ffplay -f nut -i -


  


  Edit 2022/09/07:

  


  Thanks for @kesh suggestion, below script works for first 1 second with video and sound.

  


  ffmpeg -i "udp://127.0.0.1:3001" \
-f s16le -ac 1 -ar 11025 -i "udp://127.0.0.1:3002" \
-c copy -f nut - | ffplay -f nut -i -


  


  However, sound was muted after first error occured.

  


  udp://127.0.0.1:3001: Input/output error


  


  Updates:
Above issue has been solved, with below commands:

  


  ffmpeg -i "udp://127.0.0.1:3001?overrun_nonfatal=1&fifo_size=100000" \
-f s16le -ac 1 -ar 11025 -i "udp://127.0.0.1:3002?overrun_nonfatal=1&fifo_size=100000" \
-c copy -f nut - | ffplay -f nut -i -


  


  However, if the mjpeg stream is paused or skipped few frames, the audio will stop too. It's not necessary to sync them, and how to keep the audio stream playing as long as it receives data?

  


  Q1: the default video fps is 25, can I set it to 30 or 60?

  


  Q2: pcm data stream is consistence, but mjpeg is not consistence. audio stream will stop once mjpeg is paused/resumed. What's the best solution?

  


• Laravel ffmpeg failed to execute command

  4 September 2022, by John smith

  I'm using protonemedia/laravel-ffmpeg package everything works fine on localhost but on the live server, there is an error message shown.

  


  ProtoneMedia\ LaravelFFMpeg\ Exporters\ EncodingException

ffmpeg failed to execute command '/usr/bin/ffmpeg' '-y' '-threads' '12' '-i' '/www/wwwroot/hamza/storage/app/upload/videos/uofH50IWXt3Doqacxkd2tATboUT5gLfVGaAWyvsS.mp4' '-map' '0' '-vcodec' 'libx264' '-b:v' '1000k' '-sc_threshold' '0' '-g' '48' '-hls_playlist_type' 'vod' '-hls_time' '10' '-hls_segment_filename' '/www/wwwroot/hamza/storage/app/streamable_videos/21_0_1000_%05d.ts' '-master_pl_name' 'temporary_segment_playlist_0.m3u8' '-acodec' 'aac' '-b:a' '128k' '/www/wwwroot/hamza/storage/app/streamable_videos/21_0_1000.m3u8': Error Output: ffmpeg version 3.4.11 Copyright (c) 2000-2022 the FFmpeg developers built with gcc 4.8.5 (GCC) 20150623 (Red Hat 4.8.5-44) configuration: --prefix=/usr --bindir=/usr/bin --datadir=/usr/share/ffmpeg --docdir=/usr/share/doc/ffmpeg --incdir=/usr/include/ffmpeg --libdir=/usr/lib64 --mandir=/usr/share/man --arch=x86_64 --optflags='-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches -m64 -mtune=generic' --extra-ldflags='-Wl,-z,relro ' --extra-cflags=' ' --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libvo-amrwbenc --enable-version3 --enable-bzlib --disable-crystalhd --enable-fontconfig --enable-gcrypt --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libcdio --enable-libdrm --enable-indev=jack --enable-libfreetype --enable-libfribidi --enable-libgsm --enable-libmp3lame --enable-nvenc --enable-openal --enable-opencl --enable-opengl --enable-libopenjpeg --enable-libopus --disable-encoder=libopus --enable-libpulse --enable-librsvg --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libvorbis --enable-libv4l2 --enable-libvidstab --enable-libvpx --enable-libx264 --enable-libx265 --enable-libxvid --enable-libzvbi --enable-avfilter --enable-avresample --enable-libmodplug --enable-postproc --enable-pthreads --disable-static --enable-shared --enable-gpl --disable-debug --disable-stripping --shlibdir=/usr/lib64 --enable-libmfx --enable-runtime-cpudetect libavutil 55. 78.100 / 55. 78.100 libavcodec 57.107.100 / 57.107.100 libavformat 57. 83.100 / 57. 83.100 libavdevice 57. 10.100 / 57. 10.100 libavfilter 6.107.100 / 6.107.100 libavresample 3. 7. 0 / 3. 7. 0 libswscale 4. 8.100 / 4. 8.100 libswresample 2. 9.100 / 2. 9.100 libpostproc 54. 7.100 / 54. 7.100 Unrecognized option 'master_pl_name'. Error splitting the argument list: Option not found


  


  I'm using a job to do conversation

  


  ConvertVideoForStreaming.php Job:

  


  <?php

namespace App\Jobs;
set_time_limit(60000);

use FFMpeg;
use Carbon\Carbon;
use App\Models\Video;
use FFMpeg\Format\Video\X264;
use Illuminate\Bus\Queueable;
use Illuminate\Queue\SerializesModels;
use Illuminate\Support\Facades\Storage;
use Illuminate\Queue\InteractsWithQueue;
use Illuminate\Contracts\Queue\ShouldQueue;
use Illuminate\Foundation\Bus\Dispatchable;

class ConvertVideoForStreaming implements ShouldQueue
{
    use Dispatchable, InteractsWithQueue, Queueable, SerializesModels;

    public $video;

    public function __construct(Video $video)
    {
        $this->video = $video;
    }

    public function handle()
    {
        // create some video formats...
        $lowBitrateFormat  = (new X264)->setKiloBitrate(500);
        $highBitrateFormat = (new X264)->setKiloBitrate(3000);

        // open the uploaded video from the right disk...
        FFMpeg::fromDisk($this->video->disk)
            ->open($this->video->path)

            // call the 'exportForHLS' method and specify the disk to which we want to export...
            ->exportForHLS()
            ->withRotatingEncryptionKey(function ($filename, $contents) {
                Storage::disk('streamable_keys')->put($filename, $contents);
            })
            // we'll add different formats so the stream will play smoothly
            // with all kinds of internet connections...
            ->addFormat($lowBitrateFormat)
            ->addFormat($highBitrateFormat)

            // call the 'save' method with a filename...
            ->toDisk('streamable_videos')
            ->save($this->video->id . '.m3u8');

        // update the database so we know the convertion is done!
        $this->video->update([
            'converted_for_streaming_at' => Carbon::now(),
        ]);
    }
}


  


  I'm storing the key at custom disk "streamable_keys", and converted videos should be stored in "streamable_videos".

  


  the streamable keys are generated and saved to a directory without any issues, but streamable videos are not saved to the directory.

  


  after some tracks I found that the problem happens in this line of code:

  


          ->save($this->video->id . '.m3u8');


  


  all the lines before that line work perfectly.

  


  any ideas on how to fix that?

  


  Full error screenshot

  


  ConvertVideoForStreaming.php

  


• How do I convert that mp4 to the same format as this ts?

  5 September 2022, by Orlando Bloom

  General
Complete name                            : D:/aaa.mp4
Format                                   : MPEG-4
Format profile                           : Base Media
Codec ID                                 : isom (isom/iso2/avc1/mp41)
File size                                : 2.73 MiB
Duration                                 : 6 s 154 ms
Overall bit rate mode                    : Variable
Overall bit rate                         : 3 715 kb/s
Encoded date                             : UTC 2022-09-04 09:49:04
Tagged date                              : UTC 2022-09-04 09:49:05

Video
ID                                       : 1
Format                                   : AVC
Format/Info                              : Advanced Video Codec
Format profile                           : High@L3.1
Format settings                          : CABAC / 2 Ref Frames
Format settings, CABAC                   : Yes
Format settings, Reference frames        : 2 frames
Codec ID                                 : avc1
Codec ID/Info                            : Advanced Video Coding
Duration                                 : 6 s 134 ms
Bit rate mode                            : Variable
Bit rate                                 : 3 578 kb/s
Maximum bit rate                         : 4 320 kb/s
Width                                    : 856 pixels
Height                                   : 480 pixels
Display aspect ratio                     : 16:9
Frame rate mode                          : Constant
Frame rate                               : 30.000 FPS
Standard                                 : Component
Color space                              : YUV
Chroma subsampling                       : 4:2:0
Bit depth                                : 8 bits
Scan type                                : Progressive
Bits/(Pixel*Frame)                       : 0.290
Stream size                              : 2.62 MiB (96%)
Encoded date                             : UTC 2022-09-04 09:49:04
Tagged date                              : UTC 2022-09-04 09:49:05
Color range                              : Limited
Color primaries                          : BT.709
Transfer characteristics                 : BT.709
Matrix coefficients                      : BT.709
Codec configuration box                  : avcC

Audio
ID                                       : 2
Format                                   : AAC LC
Format/Info                              : Advanced Audio Codec Low Complexity
Codec ID                                 : mp4a-40-2
Duration                                 : 6 s 154 ms
Source duration                          : 6 s 200 ms
Bit rate mode                            : Variable
Bit rate                                 : 137 kb/s
Maximum bit rate                         : 320 kb/s / 320 kb/s
Channel(s)                               : 2 channels
Channel layout                           : L R
Sampling rate                            : 44.1 kHz
Frame rate                               : 43.066 FPS (1024 SPF)
Compression mode                         : Lossy
Stream size                              : 104 KiB (4%)
Source stream size                       : 104 KiB (4%)
Default                                  : Yes
Alternate group                          : 1
Encoded date                             : UTC 2022-09-04 09:49:04
Tagged date                              : UTC 2022-09-04 09:49:05
mdhd_Duration                            : 6153




  


  General
ID                                       : 1 (0x1)
Complete name                            : D:/bbb.ts
Format                                   : MPEG-TS
File size                                : 3.13 MiB
Duration                                 : 10 s 763 ms
Overall bit rate mode                    : Variable
Overall bit rate                         : 2 434 kb/s

Video
ID                                       : 256 (0x100)
Menu ID                                  : 1 (0x1)
Format                                   : AVC
Format/Info                              : Advanced Video Codec
Format profile                           : High@L3.2
Format settings                          : CABAC / 4 Ref Frames
Format settings, CABAC                   : Yes
Format settings, Reference frames        : 4 frames
Codec ID                                 : 27
Duration                                 : 10 s 780 ms
Width                                    : 1 080 pixels
Height                                   : 606 pixels
Display aspect ratio                     : 16:9
Frame rate mode                          : Variable
Color space                              : YUV
Chroma subsampling                       : 4:2:0
Bit depth                                : 8 bits
Scan type                                : Progressive
Writing library                          : x264 core 142
Encoding settings                        : cabac=1 / ref=2 / deblock=1:0:0 / analyse=0x3:0x113 / me=hex / subme=4 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=0 / me_range=16 / chroma_me=1 / trellis=1 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=0 / threads=48 / lookahead_threads=4 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / bluray_compat=0 / constrained_intra=0 / bframes=3 / b_pyramid=2 / b_adapt=1 / b_bias=0 / direct=1 / weightb=1 / open_gop=0 / weightp=1 / keyint=250 / keyint_min=25 / scenecut=40 / intra_refresh=0 / rc_lookahead=20 / rc=crf / mbtree=1 / crf=23.0 / qcomp=0.60 / qpmin=0 / qpmax=69 / qpstep=4 / ip_ratio=1.40 / aq=1:1.00

Audio
ID                                       : 257 (0x101)
Menu ID                                  : 1 (0x1)
Format                                   : AAC LC
Format/Info                              : Advanced Audio Codec Low Complexity
Format version                           : Version 4
Muxing mode                              : ADTS
Codec ID                                 : 15-2
Duration                                 : 10 s 750 ms
Bit rate mode                            : Variable
Channel(s)                               : 2 channels
Channel layout                           : L R
Sampling rate                            : 44.1 kHz
Frame rate                               : 43.066 FPS (1024 SPF)
Compression mode                         : Lossy
Delay relative to video                  : -23 ms




  


  I tried "ffmpeg -i aaa.mp4 -c:v libx264 -c:a aac bbb.ts"

  


  But the two converted ts, "-c copy" into a new mp4 cannot be played in the iPhone default player

  


  I think my use of "ffmpeg -i aaa.mp4 -c:v libx264 -c:a aac bbb.ts" is wrong,

  


  The following is the filler text, do not look

  


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