Khi một tệp có nhiều bản âm thanh hơn, VLC có thể hiển thị tên của chúng - hoặc tiêu đề, tôi không chắc về thuật ngữ - trong menu trong Audio> Audio Track.
Khi tôi mã hóa lại tập tin với
ffmpeg -i input.mp4 -map 0:0 -map 0:1 -map 0:2 -c:v libx264 -preset slow -profile:v high -crf 17 -c:a copy output.mp4
Tên bị mất và chỉ xuất hiện chung "Track 1" và "Track 2". Làm thế nào để tôi giữ nó? Hoặc làm thế nào để tôi đặt một tên tùy chỉnh.
Đầu ra của lệnh là như thế này:
ffmpeg -ss 0 -i Shades_of_winter_24FPS_x264_5.1_AC3+R128.mp4 -map 0:0 -map 0:1 -map 0:2 -vf "ass=p.ass" -c:v libx264 -preset slow -profile:v high -crf 17 -c:a copy -metadata:s:a:0:0 -language="ble" -metadata:s:a:1 language="bli" -metadata:s:a:0:2 title="bla" -t 6 a.mp4
ffmpeg version 2.3.git-1ace957 Copyright (c) 2000-2014 the FFmpeg developers
built on Jul 26 2014 20:25:06 with gcc 4.8 (Ubuntu 4.8.2-19ubuntu1)
configuration: --extra-libs=-ldl --prefix=/opt/ffmpeg --enable-avresample --disable-debug --enable-nonfree --enable-gpl --enable-version3 --enable-x11grab --enable-libpulse --enable-libopencore-amrnb --enable-libopencore-amrwb --disable-decoder=amrnb --disable-decoder=amrwb --enable-libx264 --enable-libx265 --enable-libfdk-aac --enable-libvorbis --enable-libmp3lame --enable-libopus --enable-libvpx --enable-libspeex --enable-libass --enable-avisynth --enable-libsoxr
libavutil 52. 92.101 / 52. 92.101
libavcodec 55. 69.100 / 55. 69.100
libavformat 55. 49.100 / 55. 49.100
libavdevice 55. 13.102 / 55. 13.102
libavfilter 4. 11.102 / 4. 11.102
libavresample 1. 3. 0 / 1. 3. 0
libswscale 2. 6.100 / 2. 6.100
libswresample 0. 19.100 / 0. 19.100
libpostproc 52. 3.100 / 52. 3.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'Shades_of_winter_24FPS_x264_5.1_AC3+R128.mp4':
Metadata:
major_brand : mp42
minor_version : 0
compatible_brands: mp42isomavc1
creation_time : 2014-10-04 00:16:47
encoder : HandBrake 0.9.9 2013051800
Duration: 00:51:22.63, start: 0.000000, bitrate: 19802 kb/s
Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709), 1920x1080 [SAR 1:1 DAR 16:9], 18780 kb/s, 24 fps, 24 tbr, 90k tbn, 180k tbc (default)
Metadata:
creation_time : 2014-10-04 00:16:47
encoder : JVT/AVC Coding
Stream #0:1(und): Audio: ac3 (ac-3 / 0x332D6361), 48000 Hz, 5.1(side), fltp, 640 kb/s (default)
Metadata:
creation_time : 2014-10-04 00:16:47
Stream #0:2(und): Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 197 kb/s
Metadata:
creation_time : 2014-10-12 23:08:29
File 'a.mp4' already exists. Overwrite ? [y/N] y
[Parsed_ass_0 @ 0x1a682a0] Added subtitle file: 'p.ass' (7 styles, 9 events)
[libx264 @ 0x1a87be0] using SAR=1/1
[libx264 @ 0x1a87be0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX
[libx264 @ 0x1a87be0] profile High, level 5.0
[libx264 @ 0x1a87be0] 264 - core 142 r2389 956c8d8 - H.264/MPEG-4 AVC codec - Copyleft 2003-2014 - http://www.videolan.org/x264.html - options: cabac=1 ref=5 deblock=1:0:0 analyse=0x3:0x113 me=umh subme=8 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=12 lookahead_threads=2 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=2 b_bias=0 direct=3 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=24 scenecut=40 intra_refresh=0 rc_lookahead=50 rc=crf mbtree=1 crf=17.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
[mp4 @ 0x1a86a20] track 1: codec frame size is not set
Output #0, mp4, to 'a.mp4':
Metadata:
major_brand : mp42
minor_version : 0
compatible_brands: mp42isomavc1
encoder : Lavf55.49.100
Stream #0:0(und): Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], q=-1--1, 24 fps, 12288 tbn, 24 tbc (default)
Metadata:
creation_time : 2014-10-04 00:16:47
encoder : Lavc55.69.100 libx264
Stream #0:1(und): Audio: ac3 ([165][0][0][0] / 0x00A5), 48000 Hz, 5.1(side), 640 kb/s (default)
Metadata:
creation_time : 2014-10-04 00:16:47
-language : ble
title : bla
Stream #0:2(bli): Audio: aac ([64][0][0][0] / 0x0040), 44100 Hz, stereo, 197 kb/s
Metadata:
creation_time : 2014-10-12 23:08:29
Stream mapping:
Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
Stream #0:1 -> #0:1 (copy)
Stream #0:2 -> #0:2 (copy)
Press [q] to stop, [?] for help
[Parsed_ass_0 @ 0x1a682a0] Neither PlayResX nor PlayResY defined. Assuming 384x288
frame= 144 fps= 79 q=-1.0 Lsize= 651kB time=00:00:06.01 bitrate= 886.3kbits/s
video:122kB audio:522kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 1.122499%
[libx264 @ 0x1a87be0] frame I:1 Avg QP: 2.17 size: 7785
[libx264 @ 0x1a87be0] frame P:48 Avg QP:11.31 size: 2128
[libx264 @ 0x1a87be0] frame B:95 Avg QP:11.73 size: 151
[libx264 @ 0x1a87be0] consecutive B-frames: 11.1% 1.4% 4.2% 83.3%
[libx264 @ 0x1a87be0] mb I I16..4: 99.1% 0.0% 0.9%
[libx264 @ 0x1a87be0] mb P I16..4: 0.1% 0.1% 0.2% P16..4: 1.1% 0.2% 0.1% 0.0% 0.0% skip:98.1%
[libx264 @ 0x1a87be0] mb B I16..4: 0.0% 0.0% 0.0% B16..8: 0.4% 0.0% 0.0% direct: 0.0% skip:99.5% L0:51.3% L1:43.9% BI: 4.8%
[libx264 @ 0x1a87be0] 8x8 transform intra:4.3% inter:28.6%
[libx264 @ 0x1a87be0] direct mvs spatial:92.6% temporal:7.4%
[libx264 @ 0x1a87be0] coded y,uvDC,uvAC intra: 5.4% 2.2% 2.2% inter: 0.2% 0.0% 0.0%
[libx264 @ 0x1a87be0] i16 v,h,dc,p: 97% 1% 2% 0%
[libx264 @ 0x1a87be0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 2% 3% 94% 0% 0% 0% 0% 0% 0%
[libx264 @ 0x1a87be0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 36% 15% 19% 4% 6% 5% 5% 4% 5%
[libx264 @ 0x1a87be0] i8c dc,h,v,p: 98% 0% 1% 0%
[libx264 @ 0x1a87be0] Weighted P-Frames: Y:39.6% UV:0.0%
[libx264 @ 0x1a87be0] ref P L0: 72.3% 8.1% 14.8% 2.8% 1.6% 0.3% 0.1%
[libx264 @ 0x1a87be0] ref B L0: 58.4% 29.7% 8.5% 3.5%
[libx264 @ 0x1a87be0] ref B L1: 95.3% 4.7%
[libx264 @ 0x1a87be0] kb/s:165.74