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Autres articles (46)
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Qu’est ce qu’un masque de formulaire
13 juin 2013, parUn masque de formulaire consiste en la personnalisation du formulaire de mise en ligne des médias, rubriques, actualités, éditoriaux et liens vers des sites.
Chaque formulaire de publication d’objet peut donc être personnalisé.
Pour accéder à la personnalisation des champs de formulaires, il est nécessaire d’aller dans l’administration de votre MediaSPIP puis de sélectionner "Configuration des masques de formulaires".
Sélectionnez ensuite le formulaire à modifier en cliquant sur sont type d’objet. (...) -
Les autorisations surchargées par les plugins
27 avril 2010, parMediaspip core
autoriser_auteur_modifier() afin que les visiteurs soient capables de modifier leurs informations sur la page d’auteurs -
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
Sur d’autres sites (7186)
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ffmpeg crashes on crossfades between 3 clips if 2 clips coming from same input file [closed]
14 avril 2020, par ErikI observed that ffmpeg 4.2.2 (macOS) crashes in particular cases of crossfades between clips, if one clip comes from file
1.dv, and two clips are cut out of file2.dv, as shown below :


ffmpeg -f lavfi -i color=black:size=720x576:duration=11:rate=25 -i 1.dv -i 2.dv -filter_complex "\
 [1:v]trim=5:10,setpts=expr=PTS-STARTPTS,yadif,fade=alpha=1:d=2:st=3:type=out,setpts=expr=PTS-STARTPTS,fifo[s5];\
 [2:v]split=2[s7][s8];\
 [s7]trim=5:10,setpts=expr=PTS-STARTPTS,yadif,fade=alpha=1:d=2:type=in,fade=alpha=1:d=2:st=6:type=out,setpts=expr=PTS-STARTPTS+(3/TB),fifo[s15];\
 [s8]trim=12:17,setpts=expr=PTS-STARTPTS,yadif,fade=alpha=1:d=2:type=in,setpts=expr=PTS-STARTPTS+(6/TB),fifo[s22];\
 [0:v][s5]overlay=eof_action=repeat[s6];\
 [s6][s15]overlay=eof_action=repeat[s16];\
 [s16][s22]overlay=eof_action=repeat[s24];\
 [1:a]atrim=5:10,asetpts=expr=PTS-STARTPTS[s26];\
 [2:a]asplit=2[s27][s28];\
 [s27]atrim=5:10,asetpts=expr=PTS-STARTPTS[s30];\
 [s28]atrim=12:17,asetpts=expr=PTS-STARTPTS[s33];\
 [s26][s30]acrossfade=d=2[s31];\
 [s31][s33]acrossfade=d=2[s36]" \
 -map "[s24]" -map "[s36]" -ab 128k -acodec aac -crf 23 -movflags faststart -preset medium -tune film -vcodec libx264 -aspect 1024:576 out.mp4 -y



The order makes a difference : if the two clips from
2.dvare used first and then the clip from1.dvis appended, everything works fine. Also, if all clips are coming from different files.


ffmpeg 3.4.6 (ubuntu 18.04) shows no issues in any case.



A self-compiled ffmpeg version N-97322-gb1699f4 (commit 2020-04-13) works with short clips as above, but crashes if one of the two clips taken from
2.dvis getting longer. In my tests 1500 frames (64 sec) is OK, 1700 (68 sec) leads to a segmentation fault. That is, if you replace in the command line above :


- 

[s7]trim=5:10...->[s7]trim=0:68and accordingly[s27]atrim=5:10...->[s27]atrim=0:68







Interestingly, the length of the clip taken from
1.dvdoes not play a role.


The ffmpeg output shows about 20 times :



frame= 0 fps=0.0 q=0.0 size= 0kB time=00:00:00.00 bitrate=N/A speed= 0x 



before it continues (seg fault case) :



frame= 4 fps=0.3 q=0.0 size= 0kB time=00:00:00.00 bitrate=N/A speed= 0x 
frame= 24 fps=1.6 q=0.0 size= 0kB time=00:00:00.00 bitrate=N/A speed= 0x 
frame= 25 fps=1.5 q=0.0 size= 0kB time=00:00:00.00 bitrate=N/A speed= 0x 
frame= 34 fps=1.9 q=0.0 size= 0kB time=00:00:00.00 bitrate=N/A speed= 0x 
frame= 36 fps=2.0 q=0.0 size= 0kB time=00:00:00.00 bitrate=N/A speed= 0x 
frame= 39 fps=2.1 q=0.0 size= 0kB time=00:00:00.00 bitrate=N/A speed= 0x 
frame= 40 fps=2.0 q=0.0 size= 0kB time=00:00:00.00 bitrate=N/A speed= 0x 
frame= 40 fps=2.0 q=0.0 size= 0kB time=00:00:00.00 bitrate=N/A speed= 0x 
frame= 40 fps=1.9 q=0.0 size= 0kB time=00:00:00.00 bitrate=N/A speed= 0x 




success case :



frame= 5 fps=0.4 q=0.0 size= 0kB time=00:00:00.00 bitrate=N/A speed= 0x 
frame= 42 fps=3.2 q=28.0 size= 0kB time=00:00:00.00 bitrate=N/A speed= 0x 
frame= 53 fps=3.9 q=28.0 size= 0kB time=00:00:00.36 bitrate= 2.9kbits/s speed=0.0264x 
frame= 65 fps=4.6 q=28.0 size= 0kB time=00:00:00.84 bitrate= 1.2kbits/s speed=0.0594x 
... 



Slightly older versions included in the newest MacOS builds from zeranoe.com (git-2020-04-13-59e3a9a) and evermeet.cx (N-97308-g14dd0a9057-tessus, from 2020-04-12) are working nicely - also on my production cases (longer clips).



Any feedback would be appreciated !


-
FFMPEG process Killed and raises returncode 137 when executed through python3 subprocess.Popen but runs fine from the command line
22 novembre 2017, par Stuart ClarkeI’m not sure if this is the best way to go about this, but I have another question here which I don’t think was asked very well (or more to the point I realised the actual problem and have a simpler way of asking for help). If you can answer this question you’ll have the answer to the other.
I’m using
python 3.5.2andffmpeg 3.3.4-2and have this function to run myffmpegcommands :def ffmpegPro(args):
err = None
for i, arg in enumerate(args):
if(" " in arg or "(" in arg or "[" in arg):
args[i] = "\"" + arg + "\""
command = [
ffmpegcmd, '-y',
'-loglevel', loglevel
] + args
commandStr = " ".join(command)
ffmpeg = subprocess.Popen(commandStr, stdin=subprocess.PIPE, stderr=subprocess.PIPE, stdout=subprocess.PIPE, universal_newlines=True, shell=True)
out, err = ffmpeg.communicate()
if ffmpeg.returncode != 0:
print(commandStr + "\n" + "ERROR CODE: " + str(ffmpeg.returncode))
raise Exception(err)When I pass the following
argsthereturncodeis137and the process isKilled. This only occurs when executed inpython, when I run the same command at thecommand lineit executes as expected.['-i', '/var/www/temp/film.mp4', '-vf', 'scale=1920:1080:force_original_aspect_ratio=decrease,pad=1920:1080:x=(1920-iw)/2:y=(1080-ih)/2:color=black', '/var/www/temp/videoHD.mp4']The resulting command is :
ffmpeg -y -loglevel verbose -i /var/www/temp/film.mp4 -vf "scale=1920:1080:force_original_aspect_ratio=decrease,pad=1920:1080:x=(1920-iw)/2:y=(1080-ih)/2:color=black" /var/www/temp/videoHD.mp4When executed through
python:ERROR CODE: 137
Traceback (most recent call last):
File "getInsta2.py", line 740, in <module>
populate(media_feed, last, saved)
File "getInsta2.py", line 679, in populate
videoPost(media, hasVids, thisSaved)
File "getInsta2.py", line 639, in videoPost
processVideo(film, final, noMusic, audios, lengths)
File "getInsta2.py", line 358, in processVideo
ffmpegPro(args)
File "getInsta2.py", line 170, in ffmpegPro
raise Exception(err)
Exception: ffmpeg version 3.3.4-2~16.04.york0 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='2~16.04.york0' --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --enable-gpl --disable-stripping --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-libmp3lame --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librubberband --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-libzmq --enable-libzvbi --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libopencv --enable-libx264 --enable-shared
libavutil 55. 58.100 / 55. 58.100
libavcodec 57. 89.100 / 57. 89.100
libavformat 57. 71.100 / 57. 71.100
libavdevice 57. 6.100 / 57. 6.100
libavfilter 6. 82.100 / 6. 82.100
libavresample 3. 5. 0 / 3. 5. 0
libswscale 4. 6.100 / 4. 6.100
libswresample 2. 7.100 / 2. 7.100
libpostproc 54. 5.100 / 54. 5.100
[h264 @ 0x7fa3db55a560] Reinit context to 640x368, pix_fmt: yuv420p
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/var/www/temp/film.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
encoder : Lavf57.71.100
Duration: 00:06:19.80, start: 0.000000, bitrate: 451 kb/s
Stream #0:0(und): Video: h264 (High), 1 reference frame (avc1 / 0x31637661), yuv420p(left), 640x358 (640x368), 313 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)
Metadata:
handler_name : VideoHandler
Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)
Metadata:
handler_name : SoundHandler
Stream mapping:
Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
Stream #0:1 -> #0:1 (aac (native) -> aac (native))
Press [q] to stop, [?] for help
[h264 @ 0x7fa3db59c700] Reinit context to 640x368, pix_fmt: yuv420p
[graph_1_in_0_1 @ 0x7fa3db7115e0] tb:1/48000 samplefmt:fltp samplerate:48000 chlayout:0x3
[Parsed_scale_0 @ 0x7fa3db72e000] w:1920 h:1080 flags:'bicubic' interl:0
[graph 0 input from stream 0:0 @ 0x7fa3db72f6a0] w:640 h:358 pixfmt:yuv420p tb:1/15360 fr:30/1 sar:0/1 sws_param:flags=2
[Parsed_scale_0 @ 0x7fa3db72e000] w:640 h:358 fmt:yuv420p sar:0/1 -> w:1920 h:1074 fmt:yuv420p sar:0/1 flags:0x4
[Parsed_pad_1 @ 0x7fa3db72eac0] w:1920 h:1074 -> w:1920 h:1080 x:0 y:2 color:0x000000FF
[libx264 @ 0x7fa3db7309e0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 AVX2 LZCNT BMI2
[libx264 @ 0x7fa3db7309e0] profile High, level 4.0
[libx264 @ 0x7fa3db7309e0] 264 - core 148 r2795 aaa9aa8 - H.264/MPEG-4 AVC codec - Copyleft 2003-2017 - 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=6 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=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
Output #0, mp4, to '/var/www/temp/videoHD.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
encoder : Lavf57.71.100
Stream #0:0(und): Video: h264 (libx264), 1 reference frame ([33][0][0][0] / 0x0021), yuv420p(left), 1920x1080, q=-1--1, 30 fps, 15360 tbn, 30 tbc (default)
Metadata:
handler_name : VideoHandler
encoder : Lavc57.89.100 libx264
Side data:
cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
Stream #0:1(und): Audio: aac (LC) ([64][0][0][0] / 0x0040), 48000 Hz, stereo, fltp, delay 1024, 128 kb/s (default)
Metadata:
handler_name : SoundHandler
encoder : Lavc57.89.100 aac
Killed
</module>Note the
Killedat the end. This occurs just before any processing begins.BUT when run from the
command line(cutting and pasting the command as outputted by the code) we get :ffmpeg version 3.3.4-2~16.04.york0 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='2~16.04.york0' --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --enable-gpl --disable-stripping --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-libmp3lame --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librubberband --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-libzmq --enable-libzvbi --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libopencv --enable-libx264 --enable-shared
libavutil 55. 58.100 / 55. 58.100
libavcodec 57. 89.100 / 57. 89.100
libavformat 57. 71.100 / 57. 71.100
libavdevice 57. 6.100 / 57. 6.100
libavfilter 6. 82.100 / 6. 82.100
libavresample 3. 5. 0 / 3. 5. 0
libswscale 4. 6.100 / 4. 6.100
libswresample 2. 7.100 / 2. 7.100
libpostproc 54. 5.100 / 54. 5.100
[h264 @ 0x7f68c918f560] Reinit context to 640x368, pix_fmt: yuv420p
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/var/www/temp/film.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
encoder : Lavf57.71.100
Duration: 00:06:19.80, start: 0.000000, bitrate: 451 kb/s
Stream #0:0(und): Video: h264 (High), 1 reference frame (avc1 / 0x31637661), yuv420p(left), 640x358 (640x368), 313 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)
Metadata:
handler_name : VideoHandler
Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)
Metadata:
handler_name : SoundHandler
Stream mapping:
Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
Stream #0:1 -> #0:1 (aac (native) -> aac (native))
Press [q] to stop, [?] for help
[h264 @ 0x7f68c91d1700] Reinit context to 640x368, pix_fmt: yuv420p
[graph_1_in_0_1 @ 0x7f68c93465e0] tb:1/48000 samplefmt:fltp samplerate:48000 chlayout:0x3
[Parsed_scale_0 @ 0x7f68c9363000] w:1920 h:1080 flags:'bicubic' interl:0
[graph 0 input from stream 0:0 @ 0x7f68c93646a0] w:640 h:358 pixfmt:yuv420p tb:1/15360 fr:30/1 sar:0/1 sws_param:flags=2
[Parsed_scale_0 @ 0x7f68c9363000] w:640 h:358 fmt:yuv420p sar:0/1 -> w:1920 h:1074 fmt:yuv420p sar:0/1 flags:0x4
[Parsed_pad_1 @ 0x7f68c9363ac0] w:1920 h:1074 -> w:1920 h:1080 x:0 y:2 color:0x000000FF
[libx264 @ 0x7f68c93659e0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 AVX2 LZCNT BMI2
[libx264 @ 0x7f68c93659e0] profile High, level 4.0
[libx264 @ 0x7f68c93659e0] 264 - core 148 r2795 aaa9aa8 - H.264/MPEG-4 AVC codec - Copyleft 2003-2017 - 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=6 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=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
Output #0, mp4, to '/var/www/temp/videoHD.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
encoder : Lavf57.71.100
Stream #0:0(und): Video: h264 (libx264), 1 reference frame ([33][0][0][0] / 0x0021), yuv420p(left), 1920x1080, q=-1--1, 30 fps, 15360 tbn, 30 tbc (default)
Metadata:
handler_name : VideoHandler
encoder : Lavc57.89.100 libx264
Side data:
cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
Stream #0:1(und): Audio: aac (LC) ([64][0][0][0] / 0x0040), 48000 Hz, stereo, fltp, delay 1024, 128 kb/s (default)
Metadata:
handler_name : SoundHandler
encoder : Lavc57.89.100 aac
frame= 46 fps=0.0 q=0.0 size= 0kB time=00:00:01.62 bitrate= 0.0kbits/s
frame= 59 fps= 46 q=29.0 size= 116kB time=00:00:02.04 bitrate= 464.8kbits/
frame= 72 fps= 40 q=29.0 size= 203kB time=00:00:02.49 bitrate= 667.2kbits/
frame= 84 fps= 36 q=29.0 size= 308kB time=00:00:02.88 bitrate= 875.9kbits/
Blah
Blah
Blah
frame=11351 fps= 21 q=26.0 size= 97572kB time=00:06:18.45 bitrate=2112.1kbits/
frame=11367 fps= 21 q=29.0 size= 97732kB time=00:06:18.98 bitrate=2112.5kbits/
frame=11384 fps= 22 q=29.0 size= 97809kB time=00:06:19.56 bitrate=2111.0kbits/
No more output streams to write to, finishing.
frame=11392 fps= 21 q=-1.0 Lsize= 98519kB time=00:06:19.77 bitrate=2125.1kbits/s speed=0.715x
video:92124kB audio:5986kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.416313%
Input file #0 (/var/www/temp/film.mp4):
Input stream #0:0 (video): 11392 packets read (14892948 bytes); 11392 frames decoded;
Input stream #0:1 (audio): 17803 packets read (6112540 bytes); 17802 frames decoded (18229248 samples);
Total: 29195 packets (21005488 bytes) demuxed
Output file #0 (/var/www/temp/videoHD.mp4):
Output stream #0:0 (video): 11392 frames encoded; 11392 packets muxed (94334785 bytes);
Output stream #0:1 (audio): 17802 frames encoded (18229248 samples); 17803 packets muxed (6129981 bytes);
Total: 29195 packets (100464766 bytes) muxed
[libx264 @ 0x7f68c93659e0] frame I:74 Avg QP:19.08 size: 51540
[libx264 @ 0x7f68c93659e0] frame P:3506 Avg QP:21.34 size: 19348
[libx264 @ 0x7f68c93659e0] frame B:7812 Avg QP:24.07 size: 2904
[libx264 @ 0x7f68c93659e0] consecutive B-frames: 1.3% 20.2% 4.6% 73.9%
[libx264 @ 0x7f68c93659e0] mb I I16..4: 19.7% 73.6% 6.7%
[libx264 @ 0x7f68c93659e0] mb P I16..4: 3.2% 6.4% 0.1% P16..4: 52.5% 7.6% 2.6% 0.0% 0.0% skip:27.6%
[libx264 @ 0x7f68c93659e0] mb B I16..4: 0.2% 0.2% 0.0% B16..8: 23.2% 0.4% 0.0% direct: 0.5% skip:75.5% L0:51.8% L1:46.6% BI: 1.6%
[libx264 @ 0x7f68c93659e0] 8x8 transform intra:66.4% inter:94.0%
[libx264 @ 0x7f68c93659e0] coded y,uvDC,uvAC intra: 33.6% 53.4% 7.3% inter: 5.3% 14.2% 0.0%
[libx264 @ 0x7f68c93659e0] i16 v,h,dc,p: 22% 27% 5% 46%
[libx264 @ 0x7f68c93659e0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 29% 19% 20% 4% 7% 7% 7% 5% 4%
[libx264 @ 0x7f68c93659e0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 31% 28% 11% 3% 9% 7% 6% 3% 2%
[libx264 @ 0x7f68c93659e0] i8c dc,h,v,p: 49% 21% 20% 10%
[libx264 @ 0x7f68c93659e0] Weighted P-Frames: Y:0.5% UV:0.1%
[libx264 @ 0x7f68c93659e0] ref P L0: 63.4% 8.9% 21.4% 6.3% 0.0%
[libx264 @ 0x7f68c93659e0] ref B L0: 89.3% 9.1% 1.6%
[libx264 @ 0x7f68c93659e0] ref B L1: 98.1% 1.9%
[libx264 @ 0x7f68c93659e0] kb/s:1987.38
[aac @ 0x7f68c9366e80] Qavg: 1160.814and the output video is fine.
Why would this process be killed by python ?
Thanks,
Stu
-
Unable to split audio using easy_audio_trimmer
27 juillet 2023, par Sana Wasimcan we use the easy_audio_trimmer package to split an audio ? I tried using the ffmpeg but it is conflicting with the above package and not work.


I tried splitting by using these functions and it gave an error at the FlutterFFmpeg() method and i cant find an alternative also the duration(filePath) in the command final durationResult = await flutterSound.duration(filePath) ; shows an error


Future<void> _splitAudio() async {
 setState(() {
 _progressVisibility = true;
 });

 // Get the application documents directory
 final appDocumentsDirectory = await getApplicationDocumentsDirectory();

 // Get the input audio file path
 final inputAudioPath = widget.file.path;

 // Get the output file names for the two parts
 final outputFileName1 = 'split_audio_part1.mp3';
 final outputFileName2 = 'split_audio_part2.mp3';

 // Get the output file paths for the two parts
 final outputPath1 = '${appDocumentsDirectory.path}/$outputFileName1';
 final outputPath2 = '${appDocumentsDirectory.path}/$outputFileName2';

 // Calculate the duration of the original audio
 final originalDuration = await _getAudioDuration(inputAudioPath);

 // Calculate the durations of the two parts
 final part1Duration = _startValue;
 final part2Duration = originalDuration - _endValue;

 // Construct the FFmpeg command to split the audio
 final ffmpeg = FlutterFFmpeg();
 final splitCommand = '-i $inputAudioPath -ss 0 -t $part1Duration -c copy $outputPath1 -ss $_endValue -t $part2Duration -c copy $outputPath2';

 try {
 // Execute the FFmpeg command to split the audio
 final int result = await ffmpeg.execute(splitCommand);

 if (result == 0) {
 setState(() {
 _progressVisibility = false;
 });
 debugPrint('Audio split successfully.');
 } else {
 setState(() {
 _progressVisibility = false;
 });
 debugPrint('Failed to split audio.');
 }
 } catch (error) {
 setState(() {
 _progressVisibility = false;
 });
 debugPrint('Error while splitting audio: $error');
 }
 }

 Future<int> _getAudioDuration(String filePath) async {
 final flutterSound = FlutterSound();
 final durationResult = await flutterSound.duration(filePath);
 return durationResult.inMilliseconds;
 }
</int></void>

Dependencies


path_provider: ^2.0.15
 ffmpeg_kit_flutter: ^5.1.0
 audioplayers: ^4.1.0
 flutter_sound: ^9.2.13


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