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Unable to add audio to video
Hi, I am trying to add audio to a video(with no video) using command
ffmpeg -y -i 0001.mp4 -i audio.mp3 -map 0:0 -map 1:
0 -c copy withaudio.mp4
but received following error
ffmpeg version N-34318-g8475ec1, Copyright (c) 2000-2011 the FFmpeg developers
built on Oct 31 2011 17:50:05 with gcc 4.6.1
configuration: --enable-gpl --enable-version3 --enable-runtime-cpudetect --ena
ble-avisynth --enable-bzlib --enable-frei0r --enable-libopencore-amrnb --enable-
libopencore-amrwb --enable-libfreetype --enable-libgsm --enable-libmp3lame --ena
ble-libopenjpeg --enable-librtmp --enable-libschroedinger --enable-libspeex --en
able-libtheora --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis
--enable-libvpx --enable-libx264 --enable-libxavs --enable-libxvid --enable-zliblibavutil 51. 22. 0 / 51. 22. 0
libavcodec 53. 26. 0 / 53. 26. 0
libavformat 53. 18. 0 / 53. 18. 0
libavdevice 53. 4. 0 / 53. 4. 0
libavfilter 2. 45. 3 / 2. 45. 3
libswscale 2. 1. 0 / 2. 1. 0
libpostproc 51. 2. 0 / 51. 2. 0
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '0001.mp4':
Metadata:
major_brand : mp42
minor_version : 0
compatible_brands: isom
encoder : Machete 3.8
Duration: 00:02:27.09, start: 0.000000, bitrate: 98 kb/s
Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 640x460 [
SAR 23:24 DAR 4:3], 61 kb/s, 25 fps, 25 tbr, 600 tbn, 50 tbc
Metadata:
handler_name : Machete Video Handler
Stream #0:1(eng): Audio: mp3 (mp4a / 0x6134706D), 8000 Hz, 1 channels, s16,
30 kb/s
Metadata:
handler_name :
[mp3 @ 01D66800] max_analyze_duration 5000000 reached at 5040000
Input #1, mp3, from 'audio.mp3':
Duration: 00:06:30.16, start: 0.000000, bitrate: 29 kb/s
Stream #1:0: Audio: mp3, 8000 Hz, mono, s16, 24 kb/s
[mp4 @ 01D60060] track 1: muxing mp3 at 8000hz is not supported
Output #0, mp4, to 'withaudio.mp4':
Metadata:
major_brand : mp42
minor_version : 0
compatible_brands: isom
encoder : Lavf53.18.0
Stream #0:0(eng): Video: h264 (![0][0][0] / 0x0021), yuv420p, 640x460 [SAR 2
3:24 DAR 4:3], q=2-31, 61 kb/s, 25 tbn, 25 tbc
Metadata:
handler_name : Machete Video Handler
Stream #0:1: Audio: mp3 (i[0][0][0] / 0x0069), 8000 Hz, mono, 24 kb/s
Stream mapping:
Stream #0.0 -> #0.0 (copy)
Stream #1.0 -> #0.1 (copy)
Could not write header for output file #0 (incorrect codec parameters ?)
Please help -
4 Replies
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It tells you in the terminal output: [mp4 @ 01D60060] track 1: muxing mp3 at 8000hz is not supported
You will need to re-sample and re-encode the audio in order to mux it into an mp4 file.
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you are right. But how can I reencode my audio without loosing quality. when I try to remux with default settings, audio becomes garbled.
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ffmpeg -y -i 0001.mp4 -i audio.mp3 -map 0:0 -map 1:0 -c:v copy -c:a libmp3lame -ar 44100 -aq 0 withaudio.mp4 -
Thanx. It help me a lot
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