I'm trying to combine/merge two rtmp streams and then publish 'em to another stream
Ex.:
ffmpeg -i rtmp://ip:1935/live/micMyStream7 -i rtmp://ip:1935/live/MyStream7 -strict -2 -f flv rtmp://ip:1935/live/bcove7
The scenario is the following, I got a stream which comes from an user's microphone that is the first one (micMyStream7) and I also got a stream from another user but this one has audio and video(MyStream7).
As they are talking to each other when a user is speaking, the other one would only be listening to and vice versa.
My idea is to set up a third stream called (bcove) which would "merge" both of them so that I could have spectators who would only be listening to the entire conversation between them.
This is the log that ffmpeg printed although I couldn't recognize any message which helped me out.
paulo@paulo-desktop:~$ ffmpeg -re -i rtmp://ip:1935/live/micMyStream7 -i rtmp://ip:1935/live/MyStream7 -strict -2 -f flv rtmp://ip:1935/live/bcove7
ffmpeg version N-56029-g2ffead9 Copyright (c) 2000-2013 the FFmpeg developers
built on Sep 4 2013 11:05:57 with gcc 4.7 (Ubuntu/Linaro 4.7.3-1ubuntu1)
configuration:
libavutil 52. 43.100 / 52. 43.100
libavcodec 55. 31.100 / 55. 31.100
libavformat 55. 16.100 / 55. 16.100
libavdevice 55. 3.100 / 55. 3.100
libavfilter 3. 83.102 / 3. 83.102
libswscale 2. 5.100 / 2. 5.100
libswresample 0. 17.103 / 0. 17.103
Input #0, flv, from 'rtmp://ip:1935/live/micMyStream7':
Metadata:
author :
copyright :
description :
keywords :
rating :
title :
presetname : Medium Bandwidth (300 Kbps) - VP6
creationdate : Wed Sep 4 16:41:52 2013
:
videodevice : Built-in iSight
videokeyframe_frequency: 5
audiodevice : External microphone
audiochannels : 1
audioinputvolume: 75
Duration: N/A, start: 0.000000, bitrate: 253 kb/s
Stream #0:0: Video: vp6f, yuv420p, 320x240, 204 kb/s, 44.83 tbr, 1k tbn, 1k tbc
Stream #0:1: Audio: mp3, 22050 Hz, mono, s16p, 49 kb/s
Input #1, flv, from 'rtmp://ip:1935/live/MyStream7':
Metadata:
author :
copyright :
description :
keywords :
rating :
title :
presetname : Custom
creationdate : Wed Sep 4 12:02:24 2013
:
videodevice : FaceTime HD Camera (Built-in)
videokeyframe_frequency: 5
audiodevice : Internal microphone
audiochannels : 1
audioinputvolume: 75
Duration: N/A, start: 0.000000, bitrate: 253 kb/s
Stream #1:0: Video: vp6f, yuv420p, 320x240, 204 kb/s, 45.08 tbr, 1k tbn, 1k tbc
Stream #1:1: Audio: mp3, 22050 Hz, mono, s16p, 49 kb/s
Output #0, flv, to 'rtmp://ip:1935/live/bcove7':
Metadata:
author :
copyright :
description :
keywords :
rating :
title :
presetname : Medium Bandwidth (300 Kbps) - VP6
creationdate : Wed Sep 4 16:41:52 2013
:
videodevice : Built-in iSight
videokeyframe_frequency: 5
audiodevice : External microphone
audiochannels : 1
audioinputvolume: 75
encoder : Lavf55.16.100
Stream #0:0: Video: flv1 (flv) ([2][0][0][0] / 0x0002), yuv420p, 320x240, q=2-31, 200 kb/s, 1k tbn, 44.83 tbc
Stream #0:1: Audio: adpcm_swf ([1][0][0][0] / 0x0001), 22050 Hz, mono, s16, 88 kb/s
Stream mapping:
Stream #0:0 -> #0:0 (vp6f -> flv)
Stream #0:1 -> #0:1 (mp3 -> adpcm_swf)
Press [q] to stop, [?] for help
[mp3 @ 0x3625ec0] overread, skip -9 enddists: -3 -300:14.44 bitrate= 224.0kbits/s
[mp3 @ 0x3625ec0] overread, skip -7 enddists: -3 -30:26.39 bitrate= 203.5kbits/s
Thanks in advance
Use amix or amerge audio filter.
For two RTMP inputs:
ffmpeg -i rtmp://ip:1935/live/micMyStream7 -i rtmp://ip:1935/live/MyStream7 -filter_complex "[0:a][1:a]amix[a]" -map 0:v -map "[a]" -c:v copy -f flv rtmp://ip:1935/live/bcove7
For RTMP input and an additional, looping audio file:
ffmpeg -i rtmp://ip:1935/live/micMyStream7 -re -stream_loop -1 -i input.mp3 -filter_complex "[0:a][1:a]amix[a]" -map 0:v -map "[a]" -c:v copy -c:a aac -f flv rtmp://ip:1935/live/bcove7
-c:v copy will stream copy the video instead of re-encoding it.