Estou tentando usar o ffmpeg para converter este arquivo de fluxo TS para MP4. Observe como não há áudio até a marca de 10 segundos. Sempre que tento converter (ou copiar) esse arquivo TS, não recebo áudio. Eu suspeito que isso é porque o ffmpeg não pode encontrar um fluxo de áudio no início do arquivo, mas como faço para encontrar o áudio que começa mais tarde?
Por exemplo, esta é a saída quando eu executo esta linha ffmpeg -i beinold.ts -vf scale=1280:720 bein.mp4 . Eu adicionei a escala porque senão, o ffmpeg retornaria o MP4 inteiro como 270p, que é a resolução dos primeiros segundos. Observe a falta de erros. Mesmo rodando com -analyzeduration 15000000 não funciona.
ffmpeg version 3.4.1 Copyright (c) 2000-2017 the FFmpeg developers
built with Apple LLVM version 9.0.0 (clang-900.0.39.2)
configuration: --prefix=/usr/local/Cellar/ffmpeg/3.4.1 --enable-shared --enable-pthreads --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-gpl --enable-libmp3lame --enable-libx264 --enable-libxvid --enable-opencl --enable-videotoolbox --disable-lzma
libavutil 55. 78.100 / 55. 78.100
libavcodec 57.107.100 / 57.107.100
libavformat 57. 83.100 / 57. 83.100
libavdevice 57. 10.100 / 57. 10.100
libavfilter 6.107.100 / 6.107.100
libavresample 3. 7. 0 / 3. 7. 0
libswscale 4. 8.100 / 4. 8.100
libswresample 2. 9.100 / 2. 9.100
libpostproc 54. 7.100 / 54. 7.100
[mpegts @ 0x7fe58e801200] PES packet size mismatch
Last message repeated 1 times
[mpegts @ 0x7fe58e801200] Could not find codec parameters for stream 1 (Audio: aac ([15][0][0][0] / 0x000F), 0 channels): unspecified sample format
Consider increasing the value for the 'analyzeduration' and 'probesize' options
[mpegts @ 0x7fe58e801200] Could not find codec parameters for stream 2 (Audio: aac ([15][0][0][0] / 0x000F), 0 channels): unspecified sample format
Consider increasing the value for the 'analyzeduration' and 'probesize' options
Input #0, mpegts, from 'beinold.ts':
Duration: 00:00:50.05, start: 0.466722, bitrate: 3065 kb/s
Program 1
Metadata:
service_name :
service_provider:
Stream #0:0[0x64]: Video: h264 (Constrained Baseline) ([27][0][0][0] / 0x001B), yuv420p(progressive), 480x270 [SAR 1:1 DAR 16:9], Closed Captions, 29.97 fps, 29.97 tbr, 90k tbn, 180k tbc
Stream #0:1[0xc8](eng): Audio: aac ([15][0][0][0] / 0x000F), 0 channels
Stream #0:2[0xc9](spa): Audio: aac ([15][0][0][0] / 0x000F), 0 channels
Stream mapping:
Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
Press [q] to stop, [?] for help
[libx264 @ 0x7fe58f000c00] using SAR=1/1
[libx264 @ 0x7fe58f000c00] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 AVX2 LZCNT BMI2
[libx264 @ 0x7fe58f000c00] profile High, level 3.1
[libx264 @ 0x7fe58f000c00] 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 'bein.mp4':
Metadata:
encoder : Lavf57.83.100
Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], q=-1--1, 29.97 fps, 30k tbn, 29.97 tbc
Metadata:
encoder : Lavc57.107.100 libx264
Side data:
cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
[h264 @ 0x7fe58e07c600] Increasing reorder buffer to 107.87 bitrate=3195.9kbits/s speed=1.34x
[h264 @ 0x7fe58f800000] Increasing reorder buffer to 2
frame= 1500 fps= 31 q=-1.0 Lsize= 25728kB time=00:00:49.94 bitrate=4219.6kbits/s dup=7 drop=0 speed=1.04x
video:25708kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.078066%
[libx264 @ 0x7fe58f000c00] frame I:7 Avg QP:22.72 size: 96187
[libx264 @ 0x7fe58f000c00] frame P:398 Avg QP:25.43 size: 37357
[libx264 @ 0x7fe58f000c00] frame B:1095 Avg QP:29.51 size: 9848
[libx264 @ 0x7fe58f000c00] consecutive B-frames: 0.7% 4.3% 5.2% 89.9%
[libx264 @ 0x7fe58f000c00] mb I I16..4: 8.9% 54.3% 36.8%
[libx264 @ 0x7fe58f000c00] mb P I16..4: 3.1% 10.7% 4.1% P16..4: 35.4% 23.6% 12.2% 0.0% 0.0% skip:11.0%
[libx264 @ 0x7fe58f000c00] mb B I16..4: 0.2% 0.5% 0.2% B16..8: 39.2% 10.9% 2.9% direct: 4.9% skip:41.1% L0:40.6% L1:49.6% BI: 9.8%
[libx264 @ 0x7fe58f000c00] 8x8 transform intra:58.3% inter:57.1%
[libx264 @ 0x7fe58f000c00] coded y,uvDC,uvAC intra: 71.3% 67.7% 37.4% inter: 21.0% 18.7% 1.9%
[libx264 @ 0x7fe58f000c00] i16 v,h,dc,p: 13% 51% 10% 26%
[libx264 @ 0x7fe58f000c00] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 16% 28% 17% 5% 6% 6% 8% 6% 8%
[libx264 @ 0x7fe58f000c00] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 19% 28% 17% 5% 7% 7% 7% 5% 6%
[libx264 @ 0x7fe58f000c00] i8c dc,h,v,p: 46% 27% 18% 9%
[libx264 @ 0x7fe58f000c00] Weighted P-Frames: Y:0.3% UV:0.3%
[libx264 @ 0x7fe58f000c00] ref P L0: 61.9% 14.4% 17.9% 5.8% 0.0%
[libx264 @ 0x7fe58f000c00] ref B L0: 93.8% 5.2% 1.0%
[libx264 @ 0x7fe58f000c00] ref B L1: 97.5% 2.5%
[libx264 @ 0x7fe58f000c00] kb/s:4207.72
Isso funciona aqui:
ffmpeg -analyzeduration 15M -i beinold.ts -c copy bein.mp4
O áudio começa por volta dos 9s. A resolução é preservada, ou seja, se o player suportar a reinicialização do decodificador, você deverá ver a opção mudar na resolução quando isso acontecer no fluxo. VLC faz, assim como o Potplayer (Windows).
Tente conversor de vídeo winff (utilitário gráfico) para facilitar esse processo. Ele funciona bem aí ..