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DJ Dolores - Oslodum 2004 (includes (cc) sample of “Oslodum” by Gilberto Gil)
15 septembre 2011, par
Mis à jour : Septembre 2011
Langue : English
Type : Audio
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Sur d’autres sites (10626)
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g++ Linking Error on Mac while compiling FFMPEG
7 mai 2013, par Saptarshi Biswasg++ on Snow Leopard is throwing linking errors on the following piece of code
test.cpp
#include <iostream>
using namespace std;
#include <libavcodec></libavcodec>avcodec.h> // required headers
#include <libavformat></libavformat>avformat.h>
int main(int argc, char**argv) {
av_register_all(); // offending library call
return 0;
}
</iostream>When I try to compile this using the following command
g++ test.cpp -I/usr/local/include -L/usr/local/lib \
-lavcodec -lavformat -lavutil -lz -lm -o testI get the error
Undefined symbols :
"av_register_all()", referenced from :
_main in ccUD1ueX.o
ld : symbol(s) not found
collect2 : ld returned 1 exit statusInterestingly, if I have an equivalent c code,
test.c#include
#include <libavcodec></libavcodec>avcodec.h>
#include <libavformat></libavformat>avformat.h>
int main(int argc, char**argv) {
av_register_all();
return 0;
}gcc compiles it just fine
gcc test.c -I/usr/local/include -L/usr/local/lib \
-lavcodec -lavformat -lavutil -lz -lm -o testI am using Mac OS X 10.6.5
$ g++ --version
i686-apple-darwin10-g++-4.2.1 (GCC) 4.2.1 (Apple Inc. build 5664)
$ gcc --version
i686-apple-darwin10-gcc-4.2.1 (GCC) 4.2.1 (Apple Inc. build 5664)FFMPEG's libavcodec, libavformat etc. are C libraries and I have built them on my machine like thus :
./configure --enable-gpl --enable-pthreads --enable-shared \
--disable-doc --enable-libx264
make && sudo make installAs one would expect, libavformat indeed contains the symbol av_register_all
$ nm /usr/local/lib/libavformat.a | grep av_register_all
0000000000000000 T _av_register_all
00000000000089b0 S _av_register_all.ehI am inclined to believe g++ and gcc have different views of the libraries on my machine. g++ is not able to pick up the right libraries. Any clue ?
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ffmpeg stream video file from ubuntu to youtube
14 mars 2018, par user3010452I’m trying to create a stream to youtube. I could see how preview button changes into enable state. However it never actually changes from offline.
And it gives me several error. What am I doing wrong ?ffmpeg -i video.flv -f flv rtmp://a.rtmp.youtube.com/live2/XXXXXX
ffmpeg version 2.8.11-0ubuntu0.16.04.1 Copyright (c) 2000-2017 the FFmpeg developers
built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.4) 20160609
configuration: --prefix=/usr --extra-version=0ubuntu0.16.04.1 --build-suffix=-ffmpeg --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --cc=cc --cxx=g++ --enable-gpl --enable-shared --disable-stripping --disable-decoder=libopenjpeg --disable-decoder=libschroedinger --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmodplug --enable-libmp3lame --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-librtmp --enable-libschroedinger --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxvid --enable-libzvbi --enable-openal --enable-opengl --enable-x11grab --enable-libdc1394 --enable-libiec61883 --enable-libzmq --enable-frei0r --enable-libx264 --enable-libopencv
libavutil 54. 31.100 / 54. 31.100
libavcodec 56. 60.100 / 56. 60.100
libavformat 56. 40.101 / 56. 40.101
libavdevice 56. 4.100 / 56. 4.100
libavfilter 5. 40.101 / 5. 40.101
libavresample 2. 1. 0 / 2. 1. 0
libswscale 3. 1.101 / 3. 1.101
libswresample 1. 2.101 / 1. 2.101
libpostproc 53. 3.100 / 53. 3.100
Input #0, flv, from 'video.flv':
Metadata:
major_brand : qt
minor_version : 0
compatible_brands: qt
com.apple.quicktime.creationdate: 2017-07-20T21:44:12+0700
com.apple.quicktime.make: Apple
com.apple.quicktime.model: iPhone 6s Plus
com.apple.quicktime.software: 10.3.2
encoder : Lavf57.83.100
Duration: 00:01:15.24, start: 0.000000, bitrate: 4454 kb/s
Stream #0:0: Video: flv1, yuv420p, 1920x1080, 200 kb/s, 29.97 fps, 29.97 tbr, 1k tbn, 1k tbc
Stream #0:1: Audio: adpcm_swf, 44100 Hz, mono, s16, 176 kb/s
Output #0, flv, to 'rtmp://a.rtmp.youtube.com/XXXXXX':
Metadata:
major_brand : qt
minor_version : 0
compatible_brands: qt
com.apple.quicktime.creationdate: 2017-07-20T21:44:12+0700
com.apple.quicktime.make: Apple
com.apple.quicktime.model: iPhone 6s Plus
com.apple.quicktime.software: 10.3.2
encoder : Lavf56.40.101
Stream #0:0: Video: flv1 (flv) ([2][0][0][0] / 0x0002), yuv420p, 1920x1080, q=2-31, 200 kb/s, 29.97 fps, 1k tbn, 29.97 tbc
Metadata:
encoder : Lavc56.60.100 flv
Stream #0:1: Audio: mp3 (libmp3lame) ([2][0][0][0] / 0x0002), 44100 Hz, mono, s16p
Metadata:
encoder : Lavc56.60.100 libmp3lame
Stream mapping:
Stream #0:0 -> #0:0 (flv1 (flv) -> flv1 (flv))
Stream #0:1 -> #0:1 (adpcm_swf (native) -> mp3 (libmp3lame))
Press [q] to stop, [?] for help
[flv @ 0x162bac0] Failed to update header with correct duration.ate=4125.4kbits/s
[flv @ 0x162bac0] Failed to update header with correct filesize.
frame= 2255 fps=114 q=31.0 Lsize= 37863kB time=00:01:15.24 bitrate=4122.0kbits/s
video:37194kB audio:588kB subtitle:0kB other streams:0kB globalheaders:0kB mixing overhead : 0.213941%
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how can I transform 6 audio channels into one 5.1 channel with ffmpeg ? [closed]
12 février 2021, par user2216280I have a pro-res file which has 6 mono audio channels.
here's the ffmpeg console :



:\test-remapping>ffmpeg -i MelleParadis_PART1_CONSTANTE.mov
ffmpeg version N-60106-ge6d1c66 Copyright (c) 2000-2014 the FFmpeg developers
 built on Jan 22 2014 22:01:26 with gcc 4.8.2 (GCC)
 configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-av
isynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enab
le-iconv --enable-libass --enable-libbluray --enable-libcaca --enable-libfreetyp
e --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --ena
ble-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-l
ibopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libsp
eex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-aa
cenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavp
ack --enable-libx264 --enable-libxavs --enable-libxvid --enable-zlib
 libavutil 52. 63.100 / 52. 63.100
 libavcodec 55. 49.100 / 55. 49.100
 libavformat 55. 25.101 / 55. 25.101
 libavdevice 55. 5.102 / 55. 5.102
 libavfilter 4. 1.100 / 4. 1.100
 libswscale 2. 5.101 / 2. 5.101
 libswresample 0. 17.104 / 0. 17.104
 libpostproc 52. 3.100 / 52. 3.100
Guessed Channel Layout for Input Stream #0.1 : mono
Guessed Channel Layout for Input Stream #0.2 : mono
Guessed Channel Layout for Input Stream #0.3 : mono
Guessed Channel Layout for Input Stream #0.4 : mono
Guessed Channel Layout for Input Stream #0.5 : mono
Guessed Channel Layout for Input Stream #0.6 : mono
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'MelleParadis_PART1_CONSTANTE.mov':
 Metadata:
 major_brand : qt
 minor_version : 537199360
 compatible_brands: qt
 creation_time : 2013-11-27 18:58:26
 Duration: 00:07:34.32, start: 0.000000, bitrate: 117742 kb/s
 Stream #0:0(eng): Video: prores (apcn / 0x6E637061), yuv422p10le, 1920x1080,
 113098 kb/s, SAR 1:1 DAR 16:9, 25 fps, 25 tbr, 25 tbn, 25 tbc (default)
 Metadata:
 creation_time : 2013-11-27 18:58:26
 handler_name : Gestionnaire dıalias Apple
 timecode : 01:00:00:00
 Stream #0:1(eng): Audio: pcm_s16le (sowt / 0x74776F73), 48000 Hz, mono, s16,
 768 kb/s (default)
 Metadata:
 creation_time : 2013-11-27 18:58:26
 handler_name : Gestionnaire dıalias Apple
 Stream #0:2(eng): Audio: pcm_s16le (sowt / 0x74776F73), 48000 Hz, mono, s16,
 768 kb/s (default)
 Metadata:
 creation_time : 2013-11-27 18:58:26
 handler_name : Gestionnaire dıalias Apple
 Stream #0:3(eng): Audio: pcm_s16le (sowt / 0x74776F73), 48000 Hz, mono, s16,
 768 kb/s (default)
 Metadata:
 creation_time : 2013-11-27 18:58:26
 handler_name : Gestionnaire dıalias Apple
 Stream #0:4(eng): Audio: pcm_s16le (sowt / 0x74776F73), 48000 Hz, mono, s16,
 768 kb/s (default)
 Metadata:
 creation_time : 2013-11-27 18:58:26
 handler_name : Gestionnaire dıalias Apple
 Stream #0:5(eng): Audio: pcm_s16le (sowt / 0x74776F73), 48000 Hz, mono, s16,
 768 kb/s (default)
 Metadata:
 creation_time : 2013-11-27 18:58:26
 handler_name : Gestionnaire dıalias Apple
 Stream #0:6(eng): Audio: pcm_s16le (sowt / 0x74776F73), 48000 Hz, mono, s16,
 768 kb/s (default)
 Metadata:
 creation_time : 2013-11-27 18:58:26
 handler_name : Gestionnaire dıalias Apple
 Stream #0:7(eng): Data: none (tmcd / 0x64636D74) (default)
 Metadata:
 creation_time : 2013-11-27 19:03:46
 handler_name : Gestionnaire dıalias Apple
 timecode : 01:00:00:00``




I would like to transform them into one 5.1 audio channel



I try this line of code :



D:\test-remapping>ffmpeg -i "MelleParadis_PART1_CONSTANTE.mov" -c copy -c:a ac3 -map 0 mlle5.1.mov




the console replies "NOT ENOUGH SPACE" and stop...
of course there's still some space in my hard drive...
How could I map all the 6 mono streams into 5.1 ? 
thanks in advance.
pauline