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Médias (1)
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The Great Big Beautiful Tomorrow
28 octobre 2011, par
Mis à jour : Octobre 2011
Langue : English
Type : Texte
Autres articles (80)
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Des sites réalisés avec MediaSPIP
2 mai 2011, parCette page présente quelques-uns des sites fonctionnant sous MediaSPIP.
Vous pouvez bien entendu ajouter le votre grâce au formulaire en bas de page. -
Publier sur MédiaSpip
13 juin 2013Puis-je poster des contenus à partir d’une tablette Ipad ?
Oui, si votre Médiaspip installé est à la version 0.2 ou supérieure. Contacter au besoin l’administrateur de votre MédiaSpip pour le savoir -
Emballe médias : à quoi cela sert ?
4 février 2011, parCe plugin vise à gérer des sites de mise en ligne de documents de tous types.
Il crée des "médias", à savoir : un "média" est un article au sens SPIP créé automatiquement lors du téléversement d’un document qu’il soit audio, vidéo, image ou textuel ; un seul document ne peut être lié à un article dit "média" ;
Sur d’autres sites (4765)
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Parsing xml with perl and libXML
2 mai 2014, par user3589690I have an XML file which I would like to parse and use to create an arguments set for ffmpeg encoding.
This is what a dump of the xml looks like :
$VAR1 = {
'profile' => [
{
'enodingParam' => {
'videoFrameRate' => {
'arg' => '-r',
'content' => '25'
},
'audioCodec' => {
'arg' => '-acodec',
'content' => 'libfaac'
},
'videoCodec' => {
'arg' => '-vcodec',
'content' => 'libx264'
},
'videoSize' => {
'arg' => '-s',
'content' => '640x360'
},
'audioBitrate' => {
'arg' => '-ab',
'content' => '96k'
},
'videoGOP' => {
'arg' => '-g',
'content' => '90'
},
'audioRate' => {
'arg' => '-ar',
'content' => '22050'
},
'audioChannels' => {
'arg' => '-ac',
'content' => '2'
},
'videoPreset' => {
'arg' => '-vpre',
'content' => 'slow'
},
'videoBitrate' => {
'arg' => '-b',
'content' => '1200k'
}
},
'metadat' => {
'fileContainer' => '.mp4',
'profileName' => 'testpfrof1'
}
},
{
'enodingParam' => {
'videoFrameRate' => {
'arg' => '-r',
'content' => '25'
},
'audioCodec' => {
'arg' => '-acodec',
'content' => 'libfaac'
},
'videoCodec' => {
'arg' => '-vcodec',
'content' => 'libx264'
},
'videoSize' => {
'arg' => '-s',
'content' => '320x180'
},
'audioBitrate' => {
'arg' => '-ab',
'content' => '96k'
},
},
'videoGOP' => {
'arg' => '-g',
'content' => '90'
},
'audioRate' => {
'arg' => '-ar',
'content' => '22050'
},
'audioChannels' => {
'arg' => '-ac',
'content' => '2'
},
'videoPreset' => {
'arg' => '-vpre',
'content' => 'slow'
},
'videoBitrate' => {
'arg' => '-b',
'content' => '400k'
}
},
'metadat' => {
'fileContainer' => '.mp4',
'profileName' => 'testProfile2'
}
}
]
};I would like to use a foreach loop for the encodingparam node/tagname and end up with a string which looks something like this :
-acodec libfaac -vcodec libx264 -s 640x360 -ab 96kI am kind of stuck . This is what I have put together so far :
#!/usr/bin/perl
use warnings;
use strict;
use Data::Dumper;
use XML::LibXML;
my $filename = "xml/profile.xml";
my $parser = XML::LibXML->new;
my $doc = $parser->parse_file($filename)
or die "can't parse profile file: $@";
my $root = $doc->documentElement();
my @nodeList = $doc->getElementsByTagName('enodingParam');here is the xml file
<?xml version="1.0"?>
<profiles>
<profile>
<metadt>
<profilename>testp1</profilename>
<filecontainer>.mp4</filecontainer>
</metadt>
<enodingparam>
<videocodec arg="-vcodec">libx264</videocodec>
<videopreset arg="-vpre">slow</videopreset>
<videobitrate arg="-b">1200k</videobitrate>
<videowidth arg="-w">640</videowidth>
<videoheight arg="-h">360</videoheight>
<videosize arg="-s">640x360</videosize>
<videoframerate arg="-r">25</videoframerate>
<videogop arg="-g">90</videogop>
<audiobitrate arg="-ab">ab 96k</audiobitrate>
<audiocodec arg="-acodec">-acodec libfaac</audiocodec>
<audiochannels arg="-ac">2</audiochannels>
<audiorate arg="-ar">"22050"</audiorate>
</enodingparam>
</profile>
<profile>
<metadt>
<profilename>testProfile22</profilename>
<filecontainer>.mp4</filecontainer>
</metadt>
<enodingparam>
<videocodec arg="-vcodec">libx264</videocodec>
<videopreset arg="-vpre">slow</videopreset>
<videobitrate arg="-b">1200k</videobitrate>
<videowidth arg="-w">640</videowidth>
<videoheight arg="-h">360</videoheight>
<videosize arg="-s">640x360</videosize>
<videoframerate arg="-r">25</videoframerate>
<videogop arg="-g">90</videogop>
<audiobitrate arg="-ab">96k</audiobitrate>
<audiocodec arg="-acodec">libfaac</audiocodec>
<audiochannels arg="-ac">2</audiochannels>
<audiorate arg="-ar">22050</audiorate>
</enodingparam>
</profile>
</profiles>Modified the pl script to
use warnings;
use strict;
use Data::Dumper;
use XML::LibXML;
my $filename = "xml/book.xml";
my $parser = XML::LibXML->new;
my @ffmpegargs;
my $fileName="filename";
my $doc = $parser->parse_file($filename)
or die "can't parse profile file: $@";
my $root = $doc->documentElement();
my @paramList = $doc->getElementsByTagName('enodingParam');
for my $ele (@paramList)
{
# You then need to iterate over all the children of that node...
for my $param ($ele->nonBlankChildNodes())
{
my $inparams = " " . $param->getAttribute('arg') . " " . $param->textContent ;
push ( @ffmpegargs, $inparams);
}
my $ffmpeg = join(" ", @ffmpegargs);
print "ffmpeg" . $ffmpeg, "\n";
}It is printing out correctly. Now how do i add the following to the string
$filename , profileName, containerName (from the metadat node) to the same string so that my final output looks like :ffmpeg -vcodec libx264 -vpre slow -b 1200k -w 640 -h 360 -s 640x360 filename_profileName_containerNameok tried zooming ue to profile. Not sure how to traverse the child nodes. Tried this. But its nor printing the right values
use warnings;
use strict;
use Data::Dumper;
use XML::LibXML;
my $filename = "xml/book.xml";
my $parser = XML::LibXML->new;
my @ffmpegargs;
my $fileName="filename";
my $doc = $parser->parse_file($filename)
or die "can't parse profile file: $@";
my $root = $doc->documentElement();
my @paramList = $doc->getElementsByTagName('profile');
for my $ele (@paramList)
{
# You then need to iterate over all the children of that node...
for my $param ($ele->findnodes('/encodingParam/*'))
{
my $inparams = " " . $param->getAttribute('arg') . " " . $param->textContent ;
push ( @ffmpegargs, $inparams);
}
my $ffmpeg = join(" ", @ffmpegargs);
print "ffmpeg" . $ffmpeg, "\n";
} -
drawbox don't work on remote server and works on local
5 décembre 2015, par efpiesI’ve got a completely weird problem.
I need to draw the text over the filled rectangle. The problem is that the command line command that work on my local machine don’t work on the server ! To be precise, only
drawboxcommand don’t work.Here’s the command.
ffmpeg -i shake.mp4 -vf "scale=300:150,setsar=1/1,drawbox=w=300: h=16: x=0: y=134: color=0x1a5757: t=1000000,drawtext=x=5: y=136: fontfile=Arial.ttf: text='fdsf': fontcolor=0xd44e4e" -c:v h264 -preset medium -b:v 256k -f mp4 shake_conv.mp4Clarification
It seems, that my question is unclear. Ok, here’s clarification.
I need to draw the text over the filled rectangle.
It means, that, at first, I have a video. Then I would like to draw a bar at the [0 ; 134] with width 300px and height 16px, painted with #1A5757 color. And over that bar should be placed a text.
The problem is that the command line command that work on my local machine don’t work on the server !
It means that I have 2 environments : local machine (my Mac OS X 10.9.2 with ffmpeg 2.0.2 installed) and the server (Debian 7 with ffmpeg 1.0.8 installed. Quite old, dunno, but no errors were in this case ; can’t find any info about version dependency).
The last part,
the command line command that work on my local machine don’t work on the server
To be precise, only
drawboxcommand don’t work.means that the same command above draws the bar I need in my local environment but don’t draw it on the server side. The text is drawed correctly in both cases. One more time : the text is drawed, the bar isn’t drawed. That’s my problem. I need a bar over the video. And there aren’t any bars when I execute this command on server.
Now, I hope, this is quite clear.
Here’s the output.
ffmpeg version 1.0.8 Copyright (c) 2000-2013 the FFmpeg developers
built on Sep 12 2013 11:57:09 with gcc 4.7 (Debian 4.7.2-5)
configuration: --prefix=/usr --extra-cflags='-g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Werror=format-security ' --extra-ldflags='-Wl,-z,relro' --cc='ccache cc' --enable-shared --enable-libmp3lame --enable-gpl --enable-nonfree --enable-libvorbis --enable-pthreads --enable-libfaac --enable-libxvid --enable-postproc --enable-x11grab --enable-libgsm --enable-libtheora --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libx264 --enable-libspeex --enable-nonfree --disable-stripping --enable-libvpx --enable-libschroedinger --disable-encoder=libschroedinger --enable-version3 --enable-libopenjpeg --enable-librtmp --enable-avfilter --enable-libfreetype --enable-libvo-aacenc --disable-decoder=amrnb --enable-libvo-amrwbenc --enable-libaacplus --libdir=/usr/lib/x86_64-linux-gnu --disable-vda --enable-libbluray --enable-libcdio --enable-gnutls --enable-frei0r --enable-openssl --enable-libass --enable-libopus --enable-fontconfig --enable-libfdk-aac --enable-libdc1394 --disable-altivec --dis libavutil 51. 73.101 / 51. 73.101
libavcodec 54. 59.100 / 54. 59.100
libavformat 54. 29.104 / 54. 29.104
libavdevice 54. 2.101 / 54. 2.101
libavfilter 3. 17.100 / 3. 17.100
libswscale 2. 1.101 / 2. 1.101
libswresample 0. 15.100 / 0. 15.100
libpostproc 52. 0.100 / 52. 0.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'shake.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
creation_time : 1970-01-01 00:00:00
encoder : Lavf52.40.0
Duration: 00:00:29.24, start: 0.000000, bitrate: 2243 kb/s
Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1280x720, 2111 kb/s, 25 fps, 25 tbr, 25 tbn, 50 tbc
Metadata:
creation_time : 1970-01-01 00:00:00
handler_name : VideoHandler
Stream #0:1(und): Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo, s16, 127 kb/s
Metadata:
creation_time : 1970-01-01 00:00:00
handler_name : SoundHandler
File 'llll.mp4' already exists. Overwrite ? [y/N] y
using SAR=1/1
[libx264 @ 0x229e7a0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX
[libx264 @ 0x229e7a0] profile High, level 1.3
[libx264 @ 0x229e7a0] 264 - core 132 - H.264/MPEG-4 AVC codec - Copyleft 2003-2013 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=12 lookahead_threads=1 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=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=abr mbtree=1 bitrate=256 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
Output #0, mp4, to 'llll.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
encoder : Lavf54.29.104
Stream #0:0(und): Video: h264 ([33][0][0][0] / 0x0021), yuv420p, 300x150 [SAR 1:1 DAR 2:1], q=-1--1, 256 kb/s, 25 tbn, 25 tbc
Metadata:
creation_time : 1970-01-01 00:00:00
handler_name : VideoHandler
Stream #0:1(und): Audio: aac ([64][0][0][0] / 0x0040), 44100 Hz, stereo, s16, 128 kb/s
Metadata:
creation_time : 1970-01-01 00:00:00
handler_name : SoundHandler
Stream mapping:
Stream #0:0 -> #0:0 (h264 -> libx264)
Stream #0:1 -> #0:1 (aac -> libfaac)
Press [q] to stop, [?] for help
SSR not implemented. Update your FFmpeg version to the newest one from Git. If the problem still occurs, it means that your file has a feature which has not been implemented.
[aac @ 0x228d5c0] If you want to help, upload a sample of this file to ftp://upload.ffmpeg.org/MPlayer/incoming/ and contact the ffmpeg-devel mailing list.
Error while decoding stream #0:1: Operation not permitted
SSR not implemented. Update your FFmpeg version to the newest one from Git. If the problem still occurs, it means that your file has a feature which has not been implemented.
[aac @ 0x228d5c0] If you want to help, upload a sample of this file to ftp://upload.ffmpeg.org/MPlayer/incoming/ and contact the ffmpeg-devel mailing list.
Error while decoding stream #0:1: Operation not permitted
[aac @ 0x228d5c0] SSR not implemented. Update your FFmpeg version to the newest one from Git. If the problem still occurs, it means that your file has a feature which has not been implemented.
[aac @ 0x228d5c0] If you want to help, upload a sample of this file to ftp://upload.ffmpeg.org/MPlayer/incoming/ and contact the ffmpeg-devel mailing list.
Error while decoding stream #0:1: Operation not permitted
[aac @ 0x228d5c0] SSR not implemented. Update your FFmpeg version to the newest one from Git. If the problem still occurs, it means that your file has a feature which has not been implemented.
[aac @ 0x228d5c0] If you want to help, upload a sample of this file to ftp://upload.ffmpeg.org/MPlayer/incoming/ and contact the ffmpeg-devel mailing list.
Error while decoding stream #0:1: Operation not permitted
[aac @ 0x228d5c0] SSR not implemented. Update your FFmpeg version to the newest one from Git. If the problem still occurs, it means that your file has a feature which has not been implemented.
[aac @ 0x228d5c0] If you want to help, upload a sample of this file to ftp://upload.ffmpeg.org/MPlayer/incoming/ and contact the ffmpeg-devel mailing list.
Error while decoding stream #0:1: Operation not permitted
[aac @ 0x228d5c0] SSR not implemented. Update your FFmpeg version to the newest one from Git. If the problem still occurs, it means that your file has a feature which has not been implemented.
[aac @ 0x228d5c0] If you want to help, upload a sample of this file to ftp://upload.ffmpeg.org/MPlayer/incoming/ and contact the ffmpeg-devel mailing list.
Error while decoding stream #0:1: Operation not permitted
[aac @ 0x228d5c0] SSR not implemented. Update your FFmpeg version to the newest one from Git. If the problem still occurs, it means that your file has a feature which has not been implemented.
[aac @ 0x228d5c0] If you want to help, upload a sample of this file to ftp://upload.ffmpeg.org/MPlayer/incoming/ and contact the ffmpeg-devel mailing list.
Error while decoding stream #0:1: Operation not permitted
[aac @ 0x228d5c0] SSR not implemented. Update your FFmpeg version to the newest one from Git. If the problem still occurs, it means that your file has a feature which has not been implemented.
[aac @ 0x228d5c0] If you want to help, upload a sample of this file to ftp://upload.ffmpeg.org/MPlayer/incoming/ and contact the ffmpeg-devel mailing list.
Error while decoding stream #0:1: Operation not permitted
[aac @ 0x228d5c0] SSR not implemented. Update your FFmpeg version to the newest one from Git. If the problem still occurs, it means that your file has a feature which has not been implemented.
[aac @ 0x228d5c0] If you want to help, upload a sample of this file to ftp://upload.ffmpeg.org/MPlayer/incoming/ and contact the ffmpeg-devel mailing list.
Error while decoding stream #0:1: Operation not permitted
[aac @ 0x228d5c0] SSR not implemented. Update your FFmpeg version to the newest one from Git. If the problem still occurs, it means that your file has a feature which has not been implemented.
[aac @ 0x228d5c0] If you want to help, upload a sample of this file to ftp://upload.ffmpeg.org/MPlayer/incoming/ and contact the ffmpeg-devel mailing list.
Error while decoding stream #0:1: Operation not permitted
SSR not implemented. Update your FFmpeg version to the newest one from Git. If the problem still occurs, it means that your file has a feature which has not been implemented.
[aac @ 0x228d5c0] If you want to help, upload a sample of this file to ftp://upload.ffmpeg.org/MPlayer/incoming/ and contact the ffmpeg-devel mailing list.
Error while decoding stream #0:1: Operation not permitted
[aac @ 0x228d5c0] channel element 1.15 is not allocated
Error while decoding stream #0:1: Operation not permitted
[aac @ 0x228d5c0] SSR not implemented. Update your FFmpeg version to the newest one from Git. If the problem still occurs, it means that your file has a feature which has not been implemented.
[aac @ 0x228d5c0] If you want to help, upload a sample of this file to ftp://upload.ffmpeg.org/MPlayer/incoming/ and contact the ffmpeg-devel mailing list.
Error while decoding stream #0:1: Operation not permitted
[aac @ 0x228d5c0] SSR not implemented. Update your FFmpeg version to the newest one from Git. If the problem still occurs, it means that your file has a feature which has not been implemented.
[aac @ 0x228d5c0] If you want to help, upload a sample of this file to ftp://upload.ffmpeg.org/MPlayer/incoming/ and contact the ffmpeg-devel mailing list.
Error while decoding stream #0:1: Operation not permitted
[aac @ 0x228d5c0] SSR not implemented. Update your FFmpeg version to the newest one from Git. If the problem still occurs, it means that your file has a feature which has not been implemented.
[aac @ 0x228d5c0] If you want to help, upload a sample of this file to ftp://upload.ffmpeg.org/MPlayer/incoming/ and contact the ffmpeg-devel mailing list.
Error while decoding stream #0:1: Operation not permitted
[aac @ 0x228d5c0] SSR not implemented. Update your FFmpeg version to the newest one from Git. If the problem still occurs, it means that your file has a feature which has not been implemented.
[aac @ 0x228d5c0] If you want to help, upload a sample of this file to ftp://upload.ffmpeg.org/MPlayer/incoming/ and contact the ffmpeg-devel mailing list.
Error while decoding stream #0:1: Operation not permitted
[aac @ 0x228d5c0] TYPE_FIL: Input buffer exhausted before END element found
Error while decoding stream #0:1: Operation not permitted
Multiple frames in a packet from stream 1
[aac @ 0x228d5c0] channel element 3.11 is not allocated
Error while decoding stream #0:1: Operation not permitted
[aac @ 0x228d5c0] SSR not implemented. Update your FFmpeg version to the newest one from Git. If the problem still occurs, it means that your file has a feature which has not been implemented.
[aac @ 0x228d5c0] If you want to help, upload a sample of this file to ftp://upload.ffmpeg.org/MPlayer/incoming/ and contact the ffmpeg-devel mailing list.
Error while decoding stream #0:1: Operation not permitted
[aac @ 0x228d5c0] SSR not implemented. Update your FFmpeg version to the newest one from Git. If the problem still occurs, it means that your file has a feature which has not been implemented.
[aac @ 0x228d5c0] If you want to help, upload a sample of this file to ftp://upload.ffmpeg.org/MPlayer/incoming/ and contact the ffmpeg-devel mailing list.
Error while decoding stream #0:1: Operation not permitted
[aac @ 0x228d5c0] SSR not implemented. Update your FFmpeg version to the newest one from Git. If the problem still occurs, it means that your file has a feature which has not been implemented.
[aac @ 0x228d5c0] If you want to help, upload a sample of this file to ftp://upload.ffmpeg.org/MPlayer/incoming/ and contact the ffmpeg-devel mailing list.
Error while decoding stream #0:1: Operation not permitted
SSR not implemented. Update your FFmpeg version to the newest one from Git. If the problem still occurs, it means that your file has a feature which has not been implemented.
[aac @ 0x228d5c0] If you want to help, upload a sample of this file to ftp://upload.ffmpeg.org/MPlayer/incoming/ and contact the ffmpeg-devel mailing list.
Error while decoding stream #0:1: Operation not permitted
[aac @ 0x228d5c0] SSR not implemented. Update your FFmpeg version to the newest one from Git. If the problem still occurs, it means that your file has a feature which has not been implemented.
[aac @ 0x228d5c0] If you want to help, upload a sample of this file to ftp://upload.ffmpeg.org/MPlayer/incoming/ and contact the ffmpeg-devel mailing list.
Error while decoding stream #0:1: Operation not permitted
frame= 731 fps=244 q=32766.0 Lsize= 1497kB time=00:00:29.16 bitrate= 420.6kbits/s
video:1028kB audio:447kB subtitle:0 global headers:0kB muxing overhead 1.533339%
[libx264 @ 0x229e7a0] frame I:5 Avg QP:27.90 size: 6997
[libx264 @ 0x229e7a0] frame P:578 Avg QP:28.74 size: 1732
[libx264 @ 0x229e7a0] frame B:148 Avg QP:25.26 size: 107
[libx264 @ 0x229e7a0] consecutive B-frames: 59.5% 40.5% 0.0% 0.0%
[libx264 @ 0x229e7a0] mb I I16..4: 25.6% 9.1% 65.4%
[libx264 @ 0x229e7a0] mb P I16..4: 2.1% 1.1% 3.8% P16..4: 12.3% 15.3% 15.6% 0.0% 0.0% skip:49.7%
[libx264 @ 0x229e7a0] mb B I16..4: 0.8% 0.0% 0.0% B16..8: 17.6% 3.3% 0.9% direct: 0.5% skip:76.9% L0:39.7% L1:57.5% BI: 2.8%
[libx264 @ 0x229e7a0] final ratefactor: 26.03
[libx264 @ 0x229e7a0] 8x8 transform intra:14.3% inter:23.4%
[libx264 @ 0x229e7a0] coded y,uvDC,uvAC intra: 54.1% 68.9% 58.9% inter: 17.7% 19.5% 10.0%
[libx264 @ 0x229e7a0] i16 v,h,dc,p: 58% 33% 5% 4%
[libx264 @ 0x229e7a0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 21% 12% 22% 6% 6% 8% 7% 9% 10%
[libx264 @ 0x229e7a0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 25% 19% 20% 5% 5% 7% 8% 6% 6%
[libx264 @ 0x229e7a0] i8c dc,h,v,p: 50% 25% 19% 6%
[libx264 @ 0x229e7a0] Weighted P-Frames: Y:2.6% UV:1.7%
[libx264 @ 0x229e7a0] ref P L0: 70.2% 11.0% 10.1% 8.5% 0.1%
[libx264 @ 0x229e7a0] ref B L0: 94.3% 5.7%
[libx264 @ 0x229e7a0] kb/s:287.75 -
use ffmpeg to decode mp3 file, avcodec_decode_audio4 to decode packet, but got different data evey time
7 septembre 2014, par VinciI am trying to analyze pcm data which already decoded by
ffmpeg lib(on iOS platform). I use theavcodec_decode_audio4function to decode same packet I got many time,(by useav_read_framefunction), but i found the final data inavframeis different every time. Is that normal state forffmpegdecodeing ? If I use code audio framework I can get precisely samepcm data.
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