Ich habe ein Skript, das mit ffmpeg ein Video von YouTube schneidet und zusammenfügt, um ein MPEG-Thumbnail zu erstellen. Das Endergebnis ist ein MP4, das mit dem HTML- <video>Tag auf Mac OSX Safari, Chrome und Android Chrome einwandfrei läuft. Aber bei Safari oder Chrome auf iOS funktioniert es nicht. Hier ist das Skript, das ich zum Generieren des Thumbnails verwende:
#!/bin/bash
video_name=waterfalls
if [ ! -f $video_name.mp4 ]; then
youtube-dl -f 134 -o $video_name.mp4 https://www.youtube.com/watch?v=_henIN18dz0
fi
rm "$video_name"_clip_{1,2,3}.mp4
rm "$video_name"_thumbnail.mp4
ffmpeg -ss 00:00:30 -i $video_name.mp4 -t 00:00:02 -c:v libx264 -vprofile baseline -level 3.0 "$video_name"_clip_1.mp4
ffmpeg -ss 00:01:58 -i $video_name.mp4 -t 00:00:02 -c:v libx264 -vprofile baseline -level 3.0 "$video_name"_clip_2.mp4
ffmpeg -ss 00:05:31 -i $video_name.mp4 -t 00:00:02 -c:v libx264 -vprofile baseline -level 3.0 "$video_name"_clip_3.mp4
ffmpeg -i "concat:"$video_name"_clip_1.mp4|"$video_name"_clip_2.mp4|"$video_name"_clip_3.mp4" -c:v \
libx264 -vprofile baseline -level 3.0 "$video_name"_thumbnail.mp4
rm "$video_name"_clip_{1,2,3}.mp4
Ich habe die Profilbefehle vonhttps://trac.ffmpeg.org/wiki/Encode/H.264
Hier ist die gesamte Ausgabe des Skripts:
rm: waterfalls_1.mp4: No such file or directory
rm: waterfalls_2.mp4: No such file or directory
rm: waterfalls_3.mp4: No such file or directory
ffmpeg version 2.6 Copyright (c) 2000-2015 the FFmpeg developers
built with Apple LLVM version 6.0 (clang-600.0.56) (based on LLVM 3.5svn)
configuration: --prefix=/usr/local/Cellar/ffmpeg/2.6 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-libx264 --enable-libmp3lame --enable-libvo-aacenc --enable-libxvid --enable-vda
libavutil 54. 20.100 / 54. 20.100
libavcodec 56. 26.100 / 56. 26.100
libavformat 56. 25.101 / 56. 25.101
libavdevice 56. 4.100 / 56. 4.100
libavfilter 5. 11.102 / 5. 11.102
libavresample 2. 1. 0 / 2. 1. 0
libswscale 3. 1.101 / 3. 1.101
libswresample 1. 1.100 / 1. 1.100
libpostproc 53. 3.100 / 53. 3.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'waterfalls.mp4':
Metadata:
major_brand : dash
minor_version : 0
compatible_brands: iso6avc1mp41
creation_time : 2014-12-09 05:24:08
Duration: 00:06:06.63, start: 0.000000, bitrate: 522 kb/s
Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 640x360 [SAR 1:1 DAR 16:9], 519 kb/s, 29.97 fps, 29.97 tbr, 90k tbn, 59.94 tbc (default)
Metadata:
creation_time : 2014-12-09 05:24:08
handler_name : VideoHandler
[libx264 @ 0x7feff4001200] using SAR=1/1
[libx264 @ 0x7feff4001200] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX
[libx264 @ 0x7feff4001200] profile Constrained Baseline, level 3.0
[libx264 @ 0x7feff4001200] 264 - core 142 r2495 6a301b6 - H.264/MPEG-4 AVC codec - Copyleft 2003-2014 - http://www.videolan.org/x264.html - options: cabac=0 ref=3 deblock=1:0:0 analyse=0x1:0x111 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=12 lookahead_threads=2 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=0 weightp=0 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 'waterfalls_1.mp4':
Metadata:
major_brand : dash
minor_version : 0
compatible_brands: iso6avc1mp41
encoder : Lavf56.25.101
Stream #0:0(und): Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 640x360 [SAR 1:1 DAR 16:9], q=-1--1, 29.97 fps, 30k tbn, 29.97 tbc (default)
Metadata:
creation_time : 2014-12-09 05:24:08
handler_name : VideoHandler
encoder : Lavc56.26.100 libx264
Stream mapping:
Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
Press [q] to stop, [?] for help
frame= 59 fps=0.0 q=-1.0 Lsize= 164kB time=00:00:02.00 bitrate= 669.7kbits/s
video:163kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.640156%
[libx264 @ 0x7feff4001200] frame I:1 Avg QP:23.93 size: 29612
[libx264 @ 0x7feff4001200] frame P:58 Avg QP:24.82 size: 2350
[libx264 @ 0x7feff4001200] mb I I16..4: 17.3% 0.0% 82.7%
[libx264 @ 0x7feff4001200] mb P I16..4: 0.3% 0.0% 0.2% P16..4: 38.0% 10.1% 3.5% 0.0% 0.0% skip:47.8%
[libx264 @ 0x7feff4001200] coded y,uvDC,uvAC intra: 71.4% 65.9% 23.0% inter: 12.4% 8.8% 0.1%
[libx264 @ 0x7feff4001200] i16 v,h,dc,p: 25% 36% 12% 27%
[libx264 @ 0x7feff4001200] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 27% 16% 15% 6% 7% 7% 7% 7% 8%
[libx264 @ 0x7feff4001200] i8c dc,h,v,p: 52% 24% 18% 7%
[libx264 @ 0x7feff4001200] ref P L0: 70.7% 14.6% 14.7%
[libx264 @ 0x7feff4001200] kb/s:674.14
ffmpeg version 2.6 Copyright (c) 2000-2015 the FFmpeg developers
built with Apple LLVM version 6.0 (clang-600.0.56) (based on LLVM 3.5svn)
configuration: --prefix=/usr/local/Cellar/ffmpeg/2.6 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-libx264 --enable-libmp3lame --enable-libvo-aacenc --enable-libxvid --enable-vda
libavutil 54. 20.100 / 54. 20.100
libavcodec 56. 26.100 / 56. 26.100
libavformat 56. 25.101 / 56. 25.101
libavdevice 56. 4.100 / 56. 4.100
libavfilter 5. 11.102 / 5. 11.102
libavresample 2. 1. 0 / 2. 1. 0
libswscale 3. 1.101 / 3. 1.101
libswresample 1. 1.100 / 1. 1.100
libpostproc 53. 3.100 / 53. 3.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'waterfalls.mp4':
Metadata:
major_brand : dash
minor_version : 0
compatible_brands: iso6avc1mp41
creation_time : 2014-12-09 05:24:08
Duration: 00:06:06.63, start: 0.000000, bitrate: 522 kb/s
Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 640x360 [SAR 1:1 DAR 16:9], 519 kb/s, 29.97 fps, 29.97 tbr, 90k tbn, 59.94 tbc (default)
Metadata:
creation_time : 2014-12-09 05:24:08
handler_name : VideoHandler
[libx264 @ 0x7fc64c824200] using SAR=1/1
[libx264 @ 0x7fc64c824200] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX
[libx264 @ 0x7fc64c824200] profile Constrained Baseline, level 3.0
[libx264 @ 0x7fc64c824200] 264 - core 142 r2495 6a301b6 - H.264/MPEG-4 AVC codec - Copyleft 2003-2014 - http://www.videolan.org/x264.html - options: cabac=0 ref=3 deblock=1:0:0 analyse=0x1:0x111 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=12 lookahead_threads=2 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=0 weightp=0 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 'waterfalls_2.mp4':
Metadata:
major_brand : dash
minor_version : 0
compatible_brands: iso6avc1mp41
encoder : Lavf56.25.101
Stream #0:0(und): Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 640x360 [SAR 1:1 DAR 16:9], q=-1--1, 29.97 fps, 30k tbn, 29.97 tbc (default)
Metadata:
creation_time : 2014-12-09 05:24:08
handler_name : VideoHandler
encoder : Lavc56.26.100 libx264
Stream mapping:
Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
Press [q] to stop, [?] for help
frame= 59 fps=0.0 q=-1.0 Lsize= 217kB time=00:00:02.00 bitrate= 888.4kbits/s
video:216kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.481812%
[libx264 @ 0x7fc64c824200] frame I:1 Avg QP:25.17 size: 37772
[libx264 @ 0x7fc64c824200] frame P:58 Avg QP:25.58 size: 3153
[libx264 @ 0x7fc64c824200] mb I I16..4: 2.2% 0.0% 97.8%
[libx264 @ 0x7fc64c824200] mb P I16..4: 0.0% 0.0% 0.6% P16..4: 44.7% 14.1% 5.7% 0.0% 0.0% skip:34.9%
[libx264 @ 0x7fc64c824200] coded y,uvDC,uvAC intra: 92.6% 79.0% 23.0% inter: 15.2% 11.0% 0.0%
[libx264 @ 0x7fc64c824200] i16 v,h,dc,p: 11% 29% 25% 36%
[libx264 @ 0x7fc64c824200] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 27% 12% 13% 7% 8% 9% 7% 7% 8%
[libx264 @ 0x7fc64c824200] i8c dc,h,v,p: 48% 22% 22% 8%
[libx264 @ 0x7fc64c824200] ref P L0: 58.1% 21.8% 20.2%
[libx264 @ 0x7fc64c824200] kb/s:896.54
ffmpeg version 2.6 Copyright (c) 2000-2015 the FFmpeg developers
built with Apple LLVM version 6.0 (clang-600.0.56) (based on LLVM 3.5svn)
configuration: --prefix=/usr/local/Cellar/ffmpeg/2.6 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-libx264 --enable-libmp3lame --enable-libvo-aacenc --enable-libxvid --enable-vda
libavutil 54. 20.100 / 54. 20.100
libavcodec 56. 26.100 / 56. 26.100
libavformat 56. 25.101 / 56. 25.101
libavdevice 56. 4.100 / 56. 4.100
libavfilter 5. 11.102 / 5. 11.102
libavresample 2. 1. 0 / 2. 1. 0
libswscale 3. 1.101 / 3. 1.101
libswresample 1. 1.100 / 1. 1.100
libpostproc 53. 3.100 / 53. 3.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'waterfalls.mp4':
Metadata:
major_brand : dash
minor_version : 0
compatible_brands: iso6avc1mp41
creation_time : 2014-12-09 05:24:08
Duration: 00:06:06.63, start: 0.000000, bitrate: 522 kb/s
Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 640x360 [SAR 1:1 DAR 16:9], 519 kb/s, 29.97 fps, 29.97 tbr, 90k tbn, 59.94 tbc (default)
Metadata:
creation_time : 2014-12-09 05:24:08
handler_name : VideoHandler
[libx264 @ 0x7fb7e982c200] using SAR=1/1
[libx264 @ 0x7fb7e982c200] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX
[libx264 @ 0x7fb7e982c200] profile Constrained Baseline, level 3.0
[libx264 @ 0x7fb7e982c200] 264 - core 142 r2495 6a301b6 - H.264/MPEG-4 AVC codec - Copyleft 2003-2014 - http://www.videolan.org/x264.html - options: cabac=0 ref=3 deblock=1:0:0 analyse=0x1:0x111 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=12 lookahead_threads=2 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=0 weightp=0 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 'waterfalls_3.mp4':
Metadata:
major_brand : dash
minor_version : 0
compatible_brands: iso6avc1mp41
encoder : Lavf56.25.101
Stream #0:0(und): Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 640x360 [SAR 1:1 DAR 16:9], q=-1--1, 29.97 fps, 30k tbn, 29.97 tbc (default)
Metadata:
creation_time : 2014-12-09 05:24:08
handler_name : VideoHandler
encoder : Lavc56.26.100 libx264
Stream mapping:
Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
Press [q] to stop, [?] for help
frame= 59 fps=0.0 q=-1.0 Lsize= 205kB time=00:00:02.00 bitrate= 838.3kbits/s
video:204kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.510744%
[libx264 @ 0x7fb7e982c200] frame I:1 Avg QP:24.41 size: 29398
[libx264 @ 0x7fb7e982c200] frame P:58 Avg QP:24.57 size: 3081
[libx264 @ 0x7fb7e982c200] mb I I16..4: 3.2% 0.0% 96.8%
[libx264 @ 0x7fb7e982c200] mb P I16..4: 0.1% 0.0% 0.3% P16..4: 51.1% 13.2% 4.6% 0.0% 0.0% skip:30.7%
[libx264 @ 0x7fb7e982c200] coded y,uvDC,uvAC intra: 87.8% 88.1% 37.6% inter: 21.4% 15.1% 0.0%
[libx264 @ 0x7fb7e982c200] i16 v,h,dc,p: 16% 12% 56% 16%
[libx264 @ 0x7fb7e982c200] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 20% 15% 14% 8% 10% 8% 9% 7% 10%
[libx264 @ 0x7fb7e982c200] i8c dc,h,v,p: 50% 19% 23% 7%
[libx264 @ 0x7fb7e982c200] ref P L0: 72.3% 18.2% 9.5%
[libx264 @ 0x7fb7e982c200] kb/s:845.61
ffmpeg version 2.6 Copyright (c) 2000-2015 the FFmpeg developers
built with Apple LLVM version 6.0 (clang-600.0.56) (based on LLVM 3.5svn)
configuration: --prefix=/usr/local/Cellar/ffmpeg/2.6 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-libx264 --enable-libmp3lame --enable-libvo-aacenc --enable-libxvid --enable-vda
libavutil 54. 20.100 / 54. 20.100
libavcodec 56. 26.100 / 56. 26.100
libavformat 56. 25.101 / 56. 25.101
libavdevice 56. 4.100 / 56. 4.100
libavfilter 5. 11.102 / 5. 11.102
libavresample 2. 1. 0 / 2. 1. 0
libswscale 3. 1.101 / 3. 1.101
libswresample 1. 1.100 / 1. 1.100
libpostproc 53. 3.100 / 53. 3.100
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7fa5eb800a00] Found duplicated MOOV Atom. Skipped it
Last message repeated 1 times
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'concat:waterfalls_1.mp4|waterfalls_2.mp4|waterfalls_3.mp4':
Metadata:
encoder : Lavf56.25.101
minor_version : 512
major_brand : isom
compatible_brands: isomiso2avc1mp41
Duration: 00:00:01.97, start: 0.033000, bitrate: 2436 kb/s
Stream #0:0(und): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p, 640x360 [SAR 1:1 DAR 16:9], 676 kb/s, 29.97 fps, 29.97 tbr, 30k tbn, 59.94 tbc (default)
Metadata:
handler_name : VideoHandler
[libx264 @ 0x7fa5ec000a00] using SAR=1/1
[libx264 @ 0x7fa5ec000a00] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX
[libx264 @ 0x7fa5ec000a00] profile Constrained Baseline, level 3.0
[libx264 @ 0x7fa5ec000a00] 264 - core 142 r2495 6a301b6 - H.264/MPEG-4 AVC codec - Copyleft 2003-2014 - http://www.videolan.org/x264.html - options: cabac=0 ref=3 deblock=1:0:0 analyse=0x1:0x111 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=12 lookahead_threads=2 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=0 weightp=0 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 'waterfalls_thumbnail.mp4':
Metadata:
compatible_brands: isomiso2avc1mp41
minor_version : 512
major_brand : isom
encoder : Lavf56.25.101
Stream #0:0(und): Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 640x360 [SAR 1:1 DAR 16:9], q=-1--1, 29.97 fps, 30k tbn, 29.97 tbc (default)
Metadata:
handler_name : VideoHandler
encoder : Lavc56.26.100 libx264
Stream mapping:
Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
Press [q] to stop, [?] for help
frame= 59 fps=0.0 q=-1.0 Lsize= 143kB time=00:00:01.96 bitrate= 593.6kbits/s
video:142kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.726841%
[libx264 @ 0x7fa5ec000a00] frame I:1 Avg QP:23.67 size: 28609
[libx264 @ 0x7fa5ec000a00] frame P:58 Avg QP:24.52 size: 1996
[libx264 @ 0x7fa5ec000a00] mb I I16..4: 18.9% 0.0% 81.1%
[libx264 @ 0x7fa5ec000a00] mb P I16..4: 0.3% 0.0% 0.2% P16..4: 35.8% 9.6% 2.5% 0.0% 0.0% skip:51.5%
[libx264 @ 0x7fa5ec000a00] coded y,uvDC,uvAC intra: 68.6% 68.5% 22.1% inter: 9.8% 9.0% 0.1%
[libx264 @ 0x7fa5ec000a00] i16 v,h,dc,p: 22% 39% 12% 27%
[libx264 @ 0x7fa5ec000a00] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 28% 16% 14% 6% 7% 7% 7% 7% 7%
[libx264 @ 0x7fa5ec000a00] i8c dc,h,v,p: 51% 24% 18% 7%
[libx264 @ 0x7fa5ec000a00] ref P L0: 73.9% 13.6% 12.4%
[libx264 @ 0x7fa5ec000a00] kb/s:586.73
und hier ist schließlich die ffprobe des fertigen Videos:
ffprobe version 2.6 Copyright (c) 2007-2015 the FFmpeg developers
built with Apple LLVM version 6.0 (clang-600.0.56) (based on LLVM 3.5svn)
configuration: --prefix=/usr/local/Cellar/ffmpeg/2.6 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-libx264 --enable-libmp3lame --enable-libvo-aacenc --enable-libxvid --enable-vda
libavutil 54. 20.100 / 54. 20.100
libavcodec 56. 26.100 / 56. 26.100
libavformat 56. 25.101 / 56. 25.101
libavdevice 56. 4.100 / 56. 4.100
libavfilter 5. 11.102 / 5. 11.102
libavresample 2. 1. 0 / 2. 1. 0
libswscale 3. 1.101 / 3. 1.101
libswresample 1. 1.100 / 1. 1.100
libpostproc 53. 3.100 / 53. 3.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'waterfalls_thumbnail.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
encoder : Lavf56.25.101
Duration: 00:00:01.97, start: 0.000000, bitrate: 593 kb/s
Stream #0:0(und): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p, 640x360 [SAR 1:1 DAR 16:9], 589 kb/s, 29.97 fps, 29.97 tbr, 30k tbn, 59.94 tbc (default)
Metadata:
handler_name : VideoHandler
Die Wiedergabe der ursprünglichen MP4-Datei, aller Clips und der endgültigen MP4-Datei unter iOS auf einer Webseite mit diesem Video-Tag schlägt fehl:
<video width="320" height="180" poster="/static/images/waterfalls_poster.jpg" autoplay loop controls>
<source src="/static/videos/waterfalls_thumbnail" type="video/mp4"/>
Your browser does not support the video tag.
</video>