Ich verwende ffmpeg auf einem MacOs 10.15.7, um JPEGs mit bestimmten Zeitstempeln mithilfe einer TXT-Datei mit Berechtigungen von 755 (Inhalt unten) zusammenzufügen.
file 'Walk1_pupil_00001_00.jpeg'
inpoint 00:00:00.862054
outpoint 00:00:01.722921
file 'Walk1_pupil_00002_00.jpeg'
inpoint 00:00:01.722922
outpoint 00:00:01.747019
file 'Walk1_pupil_00003_00.jpeg'
inpoint 00:00:01.747020
outpoint 00:00:01.748162
file 'Walk1_pupil_00003_00.jpeg'
Ich habe den folgenden Befehl im selben Ordner ausgeführt wie die Bilder, die ich in der TXT-Datei aufrufe (die sich ebenfalls im selben Ordner befindet):
ffmpeg -f concat -safe 0 -i myra_test.txt -loglevel debug 1088x1080 -vcodec libx264 -pix_fmt yuv420p -metadata date=2021-04-27T19:27:05.000000Z /Users/mairahmac/Dropbox/My\ Mac\ \(Myras-MacBook-Pro.local\)/Desktop/Rotations/NanthiaSuthana/SpatialNavigationTask/subWalkVideoData/Walk1/VideoOut/myra_test.mp4
was den folgenden Fehler erzeugt:
ffmpeg version 4.4 Copyright (c) 2000-2021 the FFmpeg developers
built with Apple clang version 12.0.0 (clang-1200.0.32.29)
configuration: --prefix=/usr/local/Cellar/ffmpeg/4.4_2 --enable-shared --enable-pthreads --enable-version3 --cc=clang --host-cflags= --host-ldflags= --enable-ffplay --enable-gnutls --enable-gpl --enable-libaom --enable-libbluray --enable-libdav1d --enable-libmp3lame --enable-libopus --enable-librav1e --enable-librubberband --enable-libsnappy --enable-libsrt --enable-libtesseract --enable-libtheora --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libxvid --enable-lzma --enable-libfontconfig --enable-libfreetype --enable-frei0r --enable-libass --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libspeex --enable-libsoxr --enable-libzmq --enable-libzimg --disable-libjack --disable-indev=jack --enable-avresample --enable-videotoolbox
libavutil 56. 70.100 / 56. 70.100
libavcodec 58.134.100 / 58.134.100
libavformat 58. 76.100 / 58. 76.100
libavdevice 58. 13.100 / 58. 13.100
libavfilter 7.110.100 / 7.110.100
libavresample 4. 0. 0 / 4. 0. 0
libswscale 5. 9.100 / 5. 9.100
libswresample 3. 9.100 / 3. 9.100
libpostproc 55. 9.100 / 55. 9.100
Splitting the commandline.
Reading option '-f' ... matched as option 'f' (force format) with argument 'concat'.
Reading option '-safe' ... matched as AVOption 'safe' with argument '0'.
Reading option '-i' ... matched as input url with argument 'myra_test.txt'.
Reading option '-loglevel' ... matched as option 'loglevel' (set logging level) with argument 'debug'.
Reading option '1088x1080' ... matched as output url.
Reading option '-vcodec' ... matched as option 'vcodec' (force video codec ('copy' to copy stream)) with argument 'libx264'.
Reading option '-pix_fmt' ... matched as option 'pix_fmt' (set pixel format) with argument 'yuv420p'.
Reading option '-metadata' ... matched as option 'metadata' (add metadata) with argument 'date=2021-04-27T19:27:05.000000Z'.
Reading option '/Users/mairahmac/Dropbox/My Mac (Myras-MacBook-Pro.local)/Desktop/Rotations/NanthiaSuthana/SpatialNavigationTask/subWalkVideoData/Walk1/VideoOut/myra_test.mp4' ... matched as output url.
Finished splitting the commandline.
Parsing a group of options: global .
Applying option loglevel (set logging level) with argument debug.
Successfully parsed a group of options.
Parsing a group of options: input url myra_test.txt.
Applying option f (force format) with argument concat.
Successfully parsed a group of options.
Opening an input file: myra_test.txt.
[concat @ 0x7f8e8a809800] Opening 'myra_test.txt' for reading
[file @ 0x7f8e895236c0] Setting default whitelist 'file,crypto,data'
[NULL @ 0x7f8e8a80a400] Opening 'Walk1_pupil_00001_00.jpeg' for reading
[image2 @ 0x7f8e8a80a400] Format image2 probed with size=2048 and score=50
[image2 @ 0x7f8e8a80a400] Before avformat_find_stream_info() pos: 0 bytes read:19125 seeks:0 nb_streams:1
[mjpeg @ 0x7f8e89814200] marker=d8 avail_size_in_buf=19123
[mjpeg @ 0x7f8e89814200] marker parser used 0 bytes (0 bits)
[mjpeg @ 0x7f8e89814200] marker=e0 avail_size_in_buf=19121
[mjpeg @ 0x7f8e89814200] marker parser used 16 bytes (128 bits)
[mjpeg @ 0x7f8e89814200] marker=db avail_size_in_buf=19103
[mjpeg @ 0x7f8e89814200] index=0
[mjpeg @ 0x7f8e89814200] qscale[0]: 0
[mjpeg @ 0x7f8e89814200] marker parser used 67 bytes (536 bits)
[mjpeg @ 0x7f8e89814200] marker=db avail_size_in_buf=19034
[mjpeg @ 0x7f8e89814200] index=1
[mjpeg @ 0x7f8e89814200] qscale[1]: 1
[mjpeg @ 0x7f8e89814200] marker parser used 67 bytes (536 bits)
[mjpeg @ 0x7f8e89814200] marker=c0 avail_size_in_buf=18965
[mjpeg @ 0x7f8e89814200] Changing bps from 0 to 8
[mjpeg @ 0x7f8e89814200] sof0: picture: 1088x1080
[mjpeg @ 0x7f8e89814200] component 0 2:2 id: 0 quant:0
[mjpeg @ 0x7f8e89814200] component 1 1:1 id: 1 quant:1
[mjpeg @ 0x7f8e89814200] component 2 1:1 id: 2 quant:1
[mjpeg @ 0x7f8e89814200] pix fmt id 22111100
[mjpeg @ 0x7f8e89814200] Format yuvj420p chosen by get_format().
[mjpeg @ 0x7f8e89814200] marker parser used 17 bytes (136 bits)
[mjpeg @ 0x7f8e89814200] marker=c4 avail_size_in_buf=18946
[mjpeg @ 0x7f8e89814200] marker parser used 0 bytes (0 bits)
[mjpeg @ 0x7f8e89814200] marker=c4 avail_size_in_buf=18913
[mjpeg @ 0x7f8e89814200] marker parser used 0 bytes (0 bits)
[mjpeg @ 0x7f8e89814200] marker=c4 avail_size_in_buf=18730
[mjpeg @ 0x7f8e89814200] marker parser used 0 bytes (0 bits)
[mjpeg @ 0x7f8e89814200] marker=c4 avail_size_in_buf=18697
[mjpeg @ 0x7f8e89814200] marker parser used 0 bytes (0 bits)
[mjpeg @ 0x7f8e89814200] escaping removed 1 bytes
[mjpeg @ 0x7f8e89814200] marker=da avail_size_in_buf=18514
[mjpeg @ 0x7f8e89814200] marker parser used 18513 bytes (148104 bits)
[mjpeg @ 0x7f8e89814200] EOI missing, emulating
[mjpeg @ 0x7f8e89814200] decode frame unused 0 bytes
[image2 @ 0x7f8e8a80a400] After avformat_find_stream_info() pos: 19125 bytes read:19125 seeks:0 frames:1
[AVIOContext @ 0x7f8e89411440] Statistics: 19125 bytes read, 0 seeks
[AVIOContext @ 0x7f8e89523880] Statistics: 278 bytes read, 0 seeks
myra_test.txt: Operation not permitted
Ich habe alle JPEG-Dateien mithilfe von jpeginfo auf Beschädigungen überprüft und sie sind alle in Ordnung. Kann mir jemand dabei helfen?
Antwort1
Bilder haben keine Dauer inputund outpointfunktionieren daher nicht. Der Fehler ist irreführend, da es sich nicht um ein Problem mit den Dateiberechtigungen handelt.
Verwenden Sie durationstattdessen.
SehenConcat-Demuxer-Dokumentationund die Beispiele beiFFmpeg Wiki: Diashow.