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• avcodec/mpeg12dec : Fix uninitialized data in fate-sub-cc-scte20

  28 juin 2020, par Limin Wang

  avcodec/mpeg12dec : Fix uninitialized data in fate-sub-cc-scte20
  The issue is introduced in a705bcd763e344fa, please tested with below command line :
  
  make V=1 fate-sub-cc-scte20 TARGET_EXEC="valgrind —error-exitcode=1"
  Reported-by :   Martin Storsjö <martin@martin.st>
  
  Reviewed-by :   Martin Storsjö <martin@martin.st>
  
  Signed-off-by : Limin Wang <lance.lmwang@gmail.com>
  

  • [DH] libavcodec/mpeg12dec.c

• Node Media Server not stream when i try to pass the argument "transpose=1" to ffmpeg

  28 mai 2020, par joao.jlf4

  I'm using node-media-server to stream to instagram, and i need to rotate the original vídeo, to be portrait. I know that there is a flag on ffmpeg called transpose (there is rotate too), but when i pass it on node_relay_session.js on 24 line at the argv array, it returns me a "[Relay end]" on console, and it does'nt stream. When I remove the transpose flag from argv array it backs to stream normaly. Here is my config to nms :

  



  import NodeMediaServer from 'node-media-server';
import removeBarOfRtmpUrl from './utils/removeBarRtmpUrl';
import path from 'path';
import { remote } from 'electron';

export default function(data) {

const streams = data.map(stream => ({
endpoint: removeBarOfRtmpUrl(stream.endpoint),
key: stream.key,
}))

const config = {
rtmp: {
port: 1935,
chunk_size: 60000,
gop_cache: true,
ping: 30,
ping_timeout: 60
},
http: {
port: 8000,
allow_origin: '*'
},
relay: {
// C:\Users\Usuario\Desktop\multistream\node_modules.bin\ffmpeg.exe
ffmpeg: path.join(remote.app.getPath('appData'), '..', 'Local', 'Programs', 'multistream', 'app', 'ffmpeg', 'bin', 'ffmpeg.exe'),
tasks: streams.map(stream => ({
app: 'live',
mode: 'push',
edge: ${stream.endpoint}/${stream.key},

  }))
},
};

const nms = new NodeMediaServer(config);
return nms;
}

// {
// app: 'live',
// mode: 'push',
// edge: 'rtmp://a.rtmp.youtube.com/live2/keyyoutube',
// },```


  


• ffmpeg "filtergraph join" to use copy of channels and preserve input channel configuration (format - s32_le)

  29 avril 2020, par vishwanath patil

  Command that I am using is below, with that command I am getting 8 channel output.wav.

  



  ffmpeg.exe    -i one.wav -i two.wav -i three.wav -i four.wav \
-i five.wav -i six.wav -i seven.wav -i eight.wav \
-filter_complex '[0:0][1:0][2:0][3:0][4:0][5:0][6:0] \
[7:0]join=8:channel_layout=octagonal'  output.wav


  



  All input files one.wav, two.wav so on eight.wav are 32khz,s32le and one channel. but, output generated is output.wav which is s16le, 32khz.

  



  I can make output s32le with below command,

  



  ffmpeg.exe -i one.wav -i two.wav -i three.wav -i four.wav \
-i five.wav -i six.wav -i seven.wav -i eight.wav \
-filter_complex '[0:0][1:0][2:0][3:0][4:0][5:0][6:0] \
[7:0]join=8:channel_layout=octagonal'  -acodec pcm_s32le output.wav


  



  But, above command seems todo conversion from s16_le to s32_le (i.e one.wav doesn't match with output.wav first channel completely). However what I want is to directly copy data from input channels since audio format of all input files is same as expected audio format of output file channels (output.wav)

  



  is there way to instruct filter_graph todo processing at pcm_s32le ?

  



  Here is link to log with loglevel set to debug,
https://pastebin.com/ms4x1fLz

  



  MediaInfo.exe one.wav
General
Complete name                            : one.wav
Format                                   : Wave
File size                                : 6.50 MiB
Duration                                 : 53 s 280 ms
Overall bit rate mode                    : Constant
Overall bit rate                         : 1 024 kb/s

Audio
Format                                   : PCM
Format settings                          : Little / Signed
Codec ID                                 : 1
Duration                                 : 53 s 280 ms
Bit rate mode                            : Constant
Bit rate                                 : 1 024 kb/s
Channel(s)                               : 1 channel
Sampling rate                            : 32.0 kHz
Bit depth                                : 32 bits
Stream size                              : 6.50 MiB (100%)