Quero capturar alguns vídeos da câmera do meu telefone:
ffmpeg -f concat -i /storage/emulated/0/tmp.sc -codec copy -threads 3 -strict -2 -y /storage/emulated/0/final.mp4
Basicamente funciona bem.
Mas eu gostaria também de processar cada vídeo antes da concat:
ffmpeg -i /storage/emulated/0/original0.mp4 -filter_complex scale=1137:640, crop=640:640:248:0, transpose=1 -threads 3 -preset ultrafast -strict -2 -y /storage/emulated/0/processed0.mp4
também funciona como deveria. No entanto, quando tento concatenar os vídeos processados, o vídeo final sempre fica quebrado e às vezes recebo um erro non-monotonous DTS in output stream.
tmp.sc:
file '/storage/emulated/0/processed0.mp4'
file '/storage/emulated/0/processed1.mp4'
Filtrando arquivo1:
ffmpeg version n2.4.2 Copyright (c) 2000-2014 the FFmpeg developers
built on Sep 6 2015 00:45:52 with gcc 4.8 (GCC)
configuration: --target-os=linux --cross-prefix=/home/mike/Downloads/ffmpeg-android/toolchain-android/bin/arm-linux-androideabi- --arch=arm --cpu=cortex-a8 --enable-runtime-cpudetect --sysroot=/home/mike/Downloads/ffmpeg-android/toolchain-android/sysroot --enable-pic --enable-libx264 --enable-libass --enable-libfreetype --enable-libfribidi --enable-fontconfig --enable-pthreads --disable-debug --disable-ffserver --enable-version3 --enable-hardcoded-tables --disable-ffplay --disable-ffprobe --enable-gpl --enable-yasm --disable-doc --disable-shared --enable-static --pkg-config=/home/mike/Downloads/ffmpeg-android/ffmpeg-pkg-config --prefix=/home/mike/Downloads/ffmpeg-android/build/armeabi-v7a --extra-cflags='-I/home/mike/Downloads/ffmpeg-android/toolchain-android/include -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all' --extra-ldflags='-L/home/mike/Downloads/ffmpeg-android/toolchain-android/lib -Wl,-z,relro -Wl,-z,now -pie' --extra-libs='-lpng -lexpat -lm' --extra-cxxflags=
libavutil 54. 7.100 / 54. 7.100
libavcodec 56. 1.100 / 56. 1.100
libavformat 56. 4.101 / 56. 4.101
libavdevice 56. 0.100 / 56. 0.100
libavfilter 5. 1.100 / 5. 1.100
libswscale 3. 0.100 / 3. 0.100
libswresample 1. 1.100 / 1. 1.100
libpostproc 53. 0.100 / 53. 0.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/storage/emulated/0/original0.mp4':
Metadata:
major_brand : mp42
minor_version : 0
compatible_brands: isommp42
creation_time : 2015-09-16 21:55:26
Duration: 00:00:02.39, start: 0.000000, bitrate: 67424 kb/s
Stream #0:0(eng): Video: h264 (Baseline) (avc1 / 0x31637661), yuv420p, 1280x720, 65770 kb/s, SAR 65536:65536 DAR 16:9, 30.01 fps, 30 tbr, 90k tbn, 180k tbc (default)
Metadata:
creation_time : 2015-09-16 21:55:26
handler_name : VideoHandle
Stream #0:1(eng): Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 319 kb/s (default)
Metadata:
creation_time : 2015-09-16 21:55:26
handler_name : SoundHandle
[libx264 @ 0xb5829000] using SAR=1462/1463
[libx264 @ 0xb5829000] using cpu capabilities: none!
[libx264 @ 0xb5829000] profile Constrained Baseline, level 3.1
[libx264 @ 0xb5829000] 264 - core 142 - H.264/MPEG-4 AVC codec - Copyleft 2003-2014 - http://www.videolan.org/x264.html - options: cabac=0 ref=1 deblock=0:0:0 analyse=0:0 me=dia subme=0 psy=1 psy_rd=1.00:0.00 mixed_ref=0 me_range=16 chroma_me=1 trellis=0 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=0 threads=3 lookahead_threads=1 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=0 intra_refresh=0 rc=crf mbtree=0 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=0
Output #0, mp4, to '/storage/emulated/0/processed0.mp4':
Metadata:
major_brand : mp42
minor_version : 0
compatible_brands: isommp42
encoder : Lavf56.4.101
Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 640x640 [SAR 10233:10240 DAR 10233:10240], q=-1--1, 30 fps, 15360 tbn, 30 tbc (default)
Metadata:
encoder : Lavc56.1.100 libx264
Stream #0:1(eng): Audio: aac ([64][0][0][0] / 0x0040), 48000 Hz, stereo, fltp, 128 kb/s (default)
Metadata:
creation_time : 2015-09-16 21:55:26
handler_name : SoundHandle
encoder : Lavc56.1.100 aac
Stream mapping:
Stream #0:0 (h264) -> scale (graph 0)
transpose (graph 0) -> Stream #0:0 (libx264)
Stream #0:1 -> #0:1 (aac (native) -> aac (native))
Press [q] to stop, [?] for help
frame= 6 fps=0.0 q=25.0 size= 20kB time=00:00:01.00 bitrate= 160.3kbits/s
frame= 16 fps= 15 q=26.0 size= 157kB time=00:00:01.00 bitrate=1275.0kbits/s
frame= 27 fps= 16 q=26.0 size= 313kB time=00:00:01.00 bitrate=2542.3kbits/s
frame= 29 fps= 13 q=26.0 size= 339kB time=00:00:01.84 bitrate=1509.4kbits/s
frame= 38 fps= 14 q=26.0 size= 466kB time=00:00:02.01 bitrate=1899.6kbits/s
frame= 49 fps= 15 q=26.0 size= 627kB time=00:00:02.01 bitrate=2552.8kbits/s
frame= 60 fps= 16 q=26.0 size= 785kB time=00:00:02.01 bitrate=3198.9kbits/s
frame= 69 fps= 16 q=26.0 size= 915kB time=00:00:02.35 bitrate=3185.4kbits/s
frame= 70 fps= 15 q=-1.0 Lsize= 990kB time=00:00:02.39 bitrate=3387.6kbits/s
video:954kB audio:33kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.333486%
[libx264 @ 0xb5829000] frame I:1 Avg QP:20.00 size: 15444
[libx264 @ 0xb5829000] frame P:69 Avg QP:25.90 size: 13926
[libx264 @ 0xb5829000] mb I I16..4: 100.0% 0.0% 0.0%
[libx264 @ 0xb5829000] mb P I16..4: 72.5% 0.0% 0.0% P16..4: 24.5% 0.0% 0.0% 0.0% 0.0% skip: 3.0%
[libx264 @ 0xb5829000] coded y,uvDC,uvAC intra: 85.2% 7.9% 0.0% inter: 52.6% 14.6% 0.0%
[libx264 @ 0xb5829000] i16 v,h,dc,p: 13% 11% 65% 11%
[libx264 @ 0xb5829000] i8c dc,h,v,p: 62% 18% 16% 4%
[libx264 @ 0xb5829000] kb/s:3347.43
Filtrando arquivo2:
ffmpeg version n2.4.2 Copyright (c) 2000-2014 the FFmpeg developers
built on Sep 6 2015 00:45:52 with gcc 4.8 (GCC)
configuration: --target-os=linux --cross-prefix=/home/mike/Downloads/ffmpeg-android/toolchain-android/bin/arm-linux-androideabi- --arch=arm --cpu=cortex-a8 --enable-runtime-cpudetect --sysroot=/home/mike/Downloads/ffmpeg-android/toolchain-android/sysroot --enable-pic --enable-libx264 --enable-libass --enable-libfreetype --enable-libfribidi --enable-fontconfig --enable-pthreads --disable-debug --disable-ffserver --enable-version3 --enable-hardcoded-tables --disable-ffplay --disable-ffprobe --enable-gpl --enable-yasm --disable-doc --disable-shared --enable-static --pkg-config=/home/mike/Downloads/ffmpeg-android/ffmpeg-pkg-config --prefix=/home/mike/Downloads/ffmpeg-android/build/armeabi-v7a --extra-cflags='-I/home/mike/Downloads/ffmpeg-android/toolchain-android/include -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all' --extra-ldflags='-L/home/mike/Downloads/ffmpeg-android/toolchain-android/lib -Wl,-z,relro -Wl,-z,now -pie' --extra-libs='-lpng -lexpat -lm' --extra-cxxflags=
libavutil 54. 7.100 / 54. 7.100
libavcodec 56. 1.100 / 56. 1.100
libavformat 56. 4.101 / 56. 4.101
libavdevice 56. 0.100 / 56. 0.100
libavfilter 5. 1.100 / 5. 1.100
libswscale 3. 0.100 / 3. 0.100
libswresample 1. 1.100 / 1. 1.100
libpostproc 53. 0.100 / 53. 0.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/storage/emulated/0/original1.mp4':
Metadata:
major_brand : mp42
minor_version : 0
compatible_brands: isommp42
creation_time : 2015-09-16 21:56:23
Duration: 00:00:02.41, start: 0.000000, bitrate: 71677 kb/s
Stream #0:0(eng): Video: h264 (Baseline) (avc1 / 0x31637661), yuv420p, 1280x720, 64782 kb/s, SAR 65536:65536 DAR 16:9, 29.93 fps, 30 tbr, 90k tbn, 180k tbc (default)
Metadata:
creation_time : 2015-09-16 21:56:23
handler_name : VideoHandle
Stream #0:1(eng): Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 320 kb/s (default)
Metadata:
creation_time : 2015-09-16 21:56:23
handler_name : SoundHandle
[libx264 @ 0xb5829000] using SAR=1462/1463
[libx264 @ 0xb5829000] using cpu capabilities: none!
[libx264 @ 0xb5829000] profile Constrained Baseline, level 3.1
[libx264 @ 0xb5829000] 264 - core 142 - H.264/MPEG-4 AVC codec - Copyleft 2003-2014 - http://www.videolan.org/x264.html - options: cabac=0 ref=1 deblock=0:0:0 analyse=0:0 me=dia subme=0 psy=1 psy_rd=1.00:0.00 mixed_ref=0 me_range=16 chroma_me=1 trellis=0 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=0 threads=3 lookahead_threads=1 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=0 intra_refresh=0 rc=crf mbtree=0 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=0
Output #0, mp4, to '/storage/emulated/0/processed1.mp4':
Metadata:
major_brand : mp42
minor_version : 0
compatible_brands: isommp42
encoder : Lavf56.4.101
Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 640x640 [SAR 10233:10240 DAR 10233:10240], q=-1--1, 30 fps, 15360 tbn, 30 tbc (default)
Metadata:
encoder : Lavc56.1.100 libx264
Stream #0:1(eng): Audio: aac ([64][0][0][0] / 0x0040), 48000 Hz, stereo, fltp, 128 kb/s (default)
Metadata:
creation_time : 2015-09-16 21:56:23
handler_name : SoundHandle
encoder : Lavc56.1.100 aac
Stream mapping:
Stream #0:0 (h264) -> scale (graph 0)
transpose (graph 0) -> Stream #0:0 (libx264)
Stream #0:1 -> #0:1 (aac (native) -> aac (native))
Press [q] to stop, [?] for help
frame= 3 fps=0.0 q=0.0 size= 0kB time=00:00:01.00 bitrate= 0.4kbits/s
frame= 13 fps= 12 q=26.0 size= 146kB time=00:00:01.00 bitrate=1190.2kbits/s
frame= 23 fps= 14 q=26.0 size= 269kB time=00:00:01.00 bitrate=2197.7kbits/s
frame= 29 fps= 14 q=26.0 size= 343kB time=00:00:01.34 bitrate=2088.9kbits/s
frame= 34 fps= 13 q=26.0 size= 402kB time=00:00:02.00 bitrate=1643.0kbits/s
frame= 44 fps= 14 q=26.0 size= 529kB time=00:00:02.00 bitrate=2162.5kbits/s
frame= 55 fps= 15 q=26.0 size= 664kB time=00:00:02.00 bitrate=2714.4kbits/s
frame= 66 fps= 15 q=26.0 size= 777kB time=00:00:02.06 bitrate=3081.1kbits/s
frame= 72 fps= 15 q=-1.0 Lsize= 923kB time=00:00:02.41 bitrate=3135.8kbits/s
video:886kB audio:34kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.360588%
[libx264 @ 0xb5829000] frame I:1 Avg QP:20.00 size: 46850
[libx264 @ 0xb5829000] frame P:71 Avg QP:26.00 size: 12109
[libx264 @ 0xb5829000] mb I I16..4: 100.0% 0.0% 0.0%
[libx264 @ 0xb5829000] mb P I16..4: 49.9% 0.0% 0.0% P16..4: 38.4% 0.0% 0.0% 0.0% 0.0% skip:11.8%
[libx264 @ 0xb5829000] coded y,uvDC,uvAC intra: 70.3% 10.2% 0.0% inter: 44.6% 12.7% 0.0%
[libx264 @ 0xb5829000] i16 v,h,dc,p: 27% 16% 45% 13%
[libx264 @ 0xb5829000] i8c dc,h,v,p: 49% 17% 25% 10%
[libx264 @ 0xb5829000] kb/s:3021.96
concatenando-os:
ffmpeg version n2.4.2 Copyright (c) 2000-2014 the FFmpeg developers
built on Sep 6 2015 00:45:52 with gcc 4.8 (GCC)
configuration: --target-os=linux --cross-prefix=/home/mike/Downloads/ffmpeg-android/toolchain-android/bin/arm-linux-androideabi- --arch=arm --cpu=cortex-a8 --enable-runtime-cpudetect --sysroot=/home/mike/Downloads/ffmpeg-android/toolchain-android/sysroot --enable-pic --enable-libx264 --enable-libass --enable-libfreetype --enable-libfribidi --enable-fontconfig --enable-pthreads --disable-debug --disable-ffserver --enable-version3 --enable-hardcoded-tables --disable-ffplay --disable-ffprobe --enable-gpl --enable-yasm --disable-doc --disable-shared --enable-static --pkg-config=/home/mike/Downloads/ffmpeg-android/ffmpeg-pkg-config --prefix=/home/mike/Downloads/ffmpeg-android/build/armeabi-v7a --extra-cflags='-I/home/mike/Downloads/ffmpeg-android/toolchain-android/include -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all' --extra-ldflags='-L/home/mike/Downloads/ffmpeg-android/toolchain-android/lib -Wl,-z,relro -Wl,-z,now -pie' --extra-libs='-lpng -lexpat -lm' --extra-cxxflags=
libavutil 54. 7.100 / 54. 7.100
libavcodec 56. 1.100 / 56. 1.100
libavformat 56. 4.101 / 56. 4.101
libavdevice 56. 0.100 / 56. 0.100
libavfilter 5. 1.100 / 5. 1.100
libswscale 3. 0.100 / 3. 0.100
libswresample 1. 1.100 / 1. 1.100
libpostproc 53. 0.100 / 53. 0.100
Input #0, concat, from '/storage/emulated/0/tmp.sc':
Duration: N/A, start: 0.000000, bitrate: 3461 kb/s
Stream #0:0: Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p, 640x640 [SAR 1462:1463 DAR 1462:1463], 3349 kb/s, SAR 10233:10240 DAR 10233:10240, 30 fps, 30 tbr, 15360 tbn, 60 tbc
Stream #0:1: Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 112 kb/s
Output #0, mp4, to '/storage/emulated/0/final.mp4':
Metadata:
encoder : Lavf56.4.101
Stream #0:0: Video: h264 ([33][0][0][0] / 0x0021), yuv420p, 640x640 [SAR 10233:10240 DAR 10233:10240], q=2-31, 3349 kb/s, 30 fps, 15360 tbn, 15360 tbc
Stream #0:1: Audio: aac ([64][0][0][0] / 0x0040), 48000 Hz, stereo, 112 kb/s
Stream mapping:
Stream #0:0 -> #0:0 (copy)
Stream #0:1 -> #0:1 (copy)
Press [q] to stop, [?] for help
frame= 142 fps=0.0 q=-1.0 Lsize= 1912kB time=00:00:04.84 bitrate=3230.1kbits/s
video:1840kB audio:67kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.281813%
ATUALIZAR:então acho que o problema está na filtragem - depois de usá-la, os vídeos de saída não ficam mais uniformes e não podem ser concatenados corretamente. Atualizei os logs.
ATUALIZAÇÃO2:saída completa e comandos reais
ATUALIZAÇÃO3:aqui estão alguns vídeos de exemplo:
- original1:https://drive.google.com/file/d/0Bzb8d9xvN0SjWVUxT0Z4SzRmd1U/view?usp=sharing
- original2:https://drive.google.com/file/d/0Bzb8d9xvN0SjUkZlLUJjeHRMeDg/view?usp=sharing
- processado1:https://drive.google.com/file/d/0Bzb8d9xvN0SjUFdvaEZfSnpQMTA/view?usp=sharing
- processado2:https://drive.google.com/file/d/0Bzb8d9xvN0SjdXVXNlVGTG5yU1U/view?usp=sharing
Responder1
filtro concat
Já que você está filtrando de qualquer maneira, basta usar ofiltro concate faça tudo em um comando:
ffmpeg -i input0 -i input1 -i input2 -filter_complex \
"[0:v]scale,crop,transpose,setpts=PTS-STARTPTS[v0]; \
[1:v]scale,crop,transpose,setpts=PTS-STARTPTS[v1]; \
[2:v]scale,crop,transpose,setpts=PTS-STARTPTS[v2]; \
[v0][0:a][v1][1:a][v2][2:a]concat=n=3:v=1:a=1[v][a]" \
-map "[v]" -map "[a]" -c:v libx264 -c:a aac -strict experimental output.mp4
Para que este filtro funcione corretamente, todos os segmentos devem começar no carimbo de data/hora 0 (como
setptsmostrado acima).Todos os fluxos correspondentes devem ter os mesmos parâmetros em todos os segmentos; o sistema de filtragem selecionará automaticamente um formato de pixel comum para fluxos de vídeo e um formato de amostra, taxa de amostragem e layout de canal comuns para fluxos de áudio. Outras configurações, como tamanho do quadro, devem ser convertidas explicitamente pelo usuário.
desmultiplicador concat
Se você deseja apenas concatenar sem recodificar, você pode tentar odesmultiplicador concat.
Crie um arquivo de texto listando suas entradas:
file '/path/to/input0' file '/path/to/input1' file '/path/to/input2'Concatenar com
ffmpeg:ffmpeg -f concat -i input.txt -c copy output.mp4
Todos os arquivos devem ter os mesmos fluxos (mesmos codecs, mesma base de tempo, etc.).