查看之前发布的问题和答案
用户@potong 通过一个相当简单的命令提供了一个优雅的解决方案。
我可以对针对媒体数据文件运行的 mediainfo 命令的输出执行一些尝试，以生成文件流的文本输出。
General
Unique ID :
(0xDAC55CA81AA8F777EB9DE67AC6)
Complete name : Some Media File.mkv
Format : Matroska
Format version : Version 4
File size : 1.44 GiB
Duration : 46 min 22 s
Overall bit rate : 4 761 kb/s
Frame rate : 23.976 FPS
Encoded date : 2023-08-08 06:39:11 UTC
Writing application : mkvmerge v76.0 ('Celebration') 64-bit
Writing library : libebml v1.4.4 + libmatroska v1.7.1
Video
ID : 1
Format : HEVC
Format/Info : High Efficiency Video Coding
Format profile : Main 10@L4@Main
Codec ID : V_MPEGH/ISO/HEVC
Duration : 46 min 22 s
Bit rate : 4 501 kb/s
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 23.976 (24000/1001) FPS
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 10 bits
Bits/(Pixel*Frame) : 0.091
Stream size : 1.36 GiB (95%)
Writing library : x265 3.5+96-d844ab494:[Windows][GCC 12.2.0][64 bit] 10bit
Encoding settings : cpuid=1111039 / frame-threads=3 / numa-pools=8 / wpp / no-pmode / no-pme / no-psnr / no-ssim / log-level=2 / input-csp=1 / input-res=1920x1080 / interlace=0 / total-frames=0 / level-idc=0 / high-tier=1 / uhd-bd=0 / ref=4 / no-allow-non-conformance / no-repeat-headers / annexb / no-aud / no-eob / no-eos / no-hrd / info / hash=0 / temporal-layers=0 / open-gop / min-keyint=23 / keyint=250 / gop-lookahead=0 / bframes=8 / b-adapt=2 / b-pyramid / bframe-bias=0 / rc-lookahead=25 / lookahead-slices=4 / scenecut=40 / no-hist-scenecut / radl=0 / no-splice / no-intra-refresh / ctu=64 / min-cu-size=8 / rect / no-amp / max-tu-size=32 / tu-inter-depth=1 / tu-intra-depth=1 / limit-tu=0 / rdoq-level=2 / dynamic-rd=0.00 / no-ssim-rd / signhide / no-tskip / nr-intra=0 / nr-inter=0 / no-constrained-intra / strong-intra-smoothing / max-merge=3 / limit-refs=3 / limit-modes / me=3 / subme=3 / merange=57 / temporal-mvp / no-frame-dup / no-hme / weightp / no-weightb / no-analyze-src-pics / deblock=0:0 / no-sao / no-sao-non-deblock / rd=4 / selective-sao=0 / no-early-skip / rskip / no-fast-intra / no-tskip-fast / no-cu-lossless / no-b-intra / no-splitrd-skip / rdpenalty=0 / psy-rd=2.00 / psy-rdoq=1.00 / no-rd-refine / no-lossless / cbqpoffs=0 / crqpoffs=0 / rc=abr / bitrate=4500 / qcomp=0.60 / qpstep=4 / stats-write=0 / stats-read=2 / cplxblur=20.0 / qblur=0.5 / ipratio=1.40 / pbratio=1.30 / aq-mode=3 / aq-strength=1.00 / cutree / zone-count=0 / no-strict-cbr / qg-size=32 / no-rc-grain / qpmax=69 / qpmin=0 / no-const-vbv / sar=1 / overscan=0 / videoformat=5 / range=0 / colorprim=2 / transfer=2 / colormatrix=2 / chromaloc=0 / display-window=0 / cll=0,0 / min-luma=0 / max-luma=1023 / log2-max-poc-lsb=8 / vui-timing-info / vui-hrd-info / slices=1 / no-opt-qp-pps / no-opt-ref-list-length-pps / multi-pass-opt-rps / scenecut-bias=0.05 / no-opt-cu-delta-qp / aq-motion / no-hdr10 / no-hdr10-opt / no-dhdr10-opt / no-idr-recovery-sei / analysis-reuse-level=0 / analysis-save-reuse-level=0 / analysis-load-reuse-level=0 / scale-factor=0 / refine-intra=0 / refine-inter=0 / refine-mv=1 / refine-ctu-distortion=0 / no-limit-sao / ctu-info=0 / no-lowpass-dct / refine-analysis-type=0 / copy-pic=1 / max-ausize-factor=1.0 / no-dynamic-refine / no-single-sei / no-hevc-aq / no-svt / no-field / qp-adaptation-range=1.00 / scenecut-aware-qp=0conformance-window-offsets / right=0 / bottom=0 / decoder-max-rate=0 / no-vbv-live-multi-pass / no-mcstf / no-sbrc
Default : Yes
Forced : Yes
Color range : Limited
Audio
ID : 2
Format : E-AC-3
Format/Info : Enhanced AC-3
Commercial name : Dolby Digital Plus
Codec ID : A_EAC3
Duration : 46 min 22 s
Bit rate mode : Constant
Bit rate : 256 kb/s
Channel(s) : 6 channels
Channel layout : L R C LFE Ls Rs
Sampling rate : 48.0 kHz
Frame rate : 31.250 FPS (1536 SPF)
Compression mode : Lossy
Stream size : 79.3 MiB (5%)
Title : English
Language : English
Service kind : Complete Main
Default : Yes
Forced : No
Dialog Normalization : -27 dB
compr : -0.28 dB
mixlevel : 105 dB
roomtyp : Small
ltrtcmixlev : 3.0 dB
ltrtsurmixlev : -3.0 dB
lorocmixlev : 3.0 dB
lorosurmixlev : -3.0 dB
dialnorm_Average : -27 dB
dialnorm_Minimum : -27 dB
dialnorm_Maximum : -27 dB
Text #1
ID : 3
Format : UTF-8
Codec ID : S_TEXT/UTF8
Codec ID/Info : UTF-8 Plain Text
Duration : 46 min 22 s
Bit rate : 77 b/s
Frame rate : 0.255 FPS
Count of elements : 649
Stream size : 24.1 KiB (0%)
Language : French
Default : No
Forced : No
Text #2
ID : 4
Format : UTF-8
Codec ID : S_TEXT/UTF8
Codec ID/Info : UTF-8 Plain Text
Duration : 46 min 22 s
Bit rate : 76 b/s
Frame rate : 0.259 FPS
Count of elements : 659
Stream size : 23.8 KiB (0%)
Language : German
Default : No
Forced : No
Text #3
ID : 5
Format : UTF-8
Codec ID : S_TEXT/UTF8
Codec ID/Info : UTF-8 Plain Text
Duration : 26 min 14 s
Bit rate : 0 b/s
Frame rate : 0.003 FPS
Count of elements : 5
Stream size : 91.0 Bytes (0%)
Language : Italian
Default : No
Forced : No
Text #4
ID : 6
Format : UTF-8
Codec ID : S_TEXT/UTF8
Codec ID/Info : UTF-8 Plain Text
Duration : 46 min 22 s
Bit rate : 75 b/s
Frame rate : 0.260 FPS
Count of elements : 661
Stream size : 23.3 KiB (0%)
Language : Italian
Default : No
Forced : No
Text #5
ID : 7
Format : UTF-8
Codec ID : S_TEXT/UTF8
Codec ID/Info : UTF-8 Plain Text
Duration : 46 min 21 s
Bit rate : 56 b/s
Frame rate : 0.253 FPS
Count of elements : 643
Stream size : 17.5 KiB (0%)
Language : Japanese
Default : No
Forced : No
Text #6
ID : 8
Format : UTF-8
Codec ID : S_TEXT/UTF8
Codec ID/Info : UTF-8 Plain Text
Duration : 46 min 22 s
Bit rate : 84 b/s
Frame rate : 0.260 FPS
Count of elements : 660
Stream size : 26.2 KiB (0%)
Language : Korean
Default : No
Forced : No
Text #7
ID : 9
Format : UTF-8
Codec ID : S_TEXT/UTF8
Codec ID/Info : UTF-8 Plain Text
Duration : 46 min 22 s
Bit rate : 71 b/s
Frame rate : 0.258 FPS
Count of elements : 656
Stream size : 22.0 KiB (0%)
Language : Norwegian
Default : No
Forced : No
Text #8
ID : 10
Format : UTF-8
Codec ID : S_TEXT/UTF8
Codec ID/Info : UTF-8 Plain Text
Duration : 30 min 43 s
Bit rate : 0 b/s
Frame rate : 0.003 FPS
Count of elements : 6
Stream size : 75.0 Bytes (0%)
Language : Polish
Default : No
Forced : No
Text #9
ID : 11
Format : UTF-8
Codec ID : S_TEXT/UTF8
Codec ID/Info : UTF-8 Plain Text
Duration : 46 min 22 s
Bit rate : 70 b/s
Frame rate : 0.261 FPS
Count of elements : 663
Stream size : 21.9 KiB (0%)
Language : Polish
Default : No
Forced : No
Text #10
ID : 12
Format : UTF-8
Codec ID : S_TEXT/UTF8
Codec ID/Info : UTF-8 Plain Text
Duration : 46 min 22 s
Bit rate : 74 b/s
Frame rate : 0.261 FPS
Count of elements : 663
Stream size : 23.1 KiB (0%)
Language : Portuguese
Default : No
Forced : No
Text #11
ID : 13
Format : UTF-8
Codec ID : S_TEXT/UTF8
Codec ID/Info : UTF-8 Plain Text
Duration : 46 min 22 s
Bit rate : 79 b/s
Frame rate : 0.260 FPS
Count of elements : 660
Stream size : 24.7 KiB (0%)
Language : Portuguese
Default : No
Forced : No
Text #12
ID : 14
Format : UTF-8
Codec ID : S_TEXT/UTF8
Codec ID/Info : UTF-8 Plain Text
Duration : 46 min 22 s
Bit rate : 77 b/s
Frame rate : 0.260 FPS
Count of elements : 662
Stream size : 24.2 KiB (0%)
Language : Spanish
Default : No
Forced : No
Text #13
ID : 15
Format : UTF-8
Codec ID : S_TEXT/UTF8
Codec ID/Info : UTF-8 Plain Text
Duration : 30 min 41 s
Bit rate : 0 b/s
Frame rate : 0.003 FPS
Count of elements : 6
Stream size : 77.0 Bytes (0%)
Language : Spanish
Default : No
Forced : No
Text #14
ID : 16
Format : UTF-8
Codec ID : S_TEXT/UTF8
Codec ID/Info : UTF-8 Plain Text
Duration : 46 min 22 s
Bit rate : 69 b/s
Frame rate : 0.254 FPS
Count of elements : 645
Stream size : 21.6 KiB (0%)
Language : Spanish
Default : No
Forced : No
Text #15
ID : 17
Format : UTF-8
Codec ID : S_TEXT/UTF8
Codec ID/Info : UTF-8 Plain Text
Duration : 46 min 22 s
Bit rate : 74 b/s
Frame rate : 0.258 FPS
Count of elements : 657
Stream size : 23.1 KiB (0%)
Language : Swedish
Default : No
Forced : No
Text #16
ID : 18
Format : UTF-8
Codec ID : S_TEXT/UTF8
Codec ID/Info : UTF-8 Plain Text
Duration : 46 min 21 s
Bit rate : 84 b/s
Frame rate : 0.311 FPS
Count of elements : 791
Stream size : 26.3 KiB (0%)
Language : English
Default : No
Forced : No
Text #17
ID : 19
Format : UTF-8
Codec ID : S_TEXT/UTF8
Codec ID/Info : UTF-8 Plain Text
Duration : 46 min 22 s
Bit rate : 75 b/s
Frame rate : 0.258 FPS
Count of elements : 655
Stream size : 23.4 KiB (0%)
Language : English
Default : No
Forced : No
Text #18
ID : 20
Format : UTF-8
Codec ID : S_TEXT/UTF8
Codec ID/Info : UTF-8 Plain Text
Duration : 43 min 9 s
Bit rate : 69 b/s
Frame rate : 0.285 FPS
Count of elements : 739
Stream size : 21.9 KiB (0%)
Language : Chinese
Default : No
Forced : No
Text #19
ID : 21
Format : UTF-8
Codec ID : S_TEXT/UTF8
Codec ID/Info : UTF-8 Plain Text
Duration : 46 min 22 s
Bit rate : 62 b/s
Frame rate : 0.261 FPS
Count of elements : 663
Stream size : 19.4 KiB (0%)
Language : Chinese
Default : No
Forced : No
Text #20
ID : 22
Format : UTF-8
Codec ID : S_TEXT/UTF8
Codec ID/Info : UTF-8 Plain Text
Duration : 46 min 22 s
Bit rate : 73 b/s
Frame rate : 0.259 FPS
Count of elements : 659
Stream size : 22.9 KiB (0%)
Language : Danish
Default : No
Forced : No
Text #21
ID : 23
Format : UTF-8
Codec ID : S_TEXT/UTF8
Codec ID/Info : UTF-8 Plain Text
Duration : 46 min 22 s
Bit rate : 64 b/s
Frame rate : 0.249 FPS
Count of elements : 634
Stream size : 19.9 KiB (0%)
Language : Dutch
Default : No
Forced : No
Text #22
ID : 24
Format : UTF-8
Codec ID : S_TEXT/UTF8
Codec ID/Info : UTF-8 Plain Text
Duration : 46 min 22 s
Bit rate : 74 b/s
Frame rate : 0.259 FPS
Count of elements : 658
Stream size : 23.2 KiB (0%)
Language : Finnish
Default : No
Forced : No
Text #23
ID : 25
Format : UTF-8
Codec ID : S_TEXT/UTF8
Codec ID/Info : UTF-8 Plain Text
Duration : 26 min 14 s
Bit rate : 0 b/s
Frame rate : 0.003 FPS
Count of elements : 5
Stream size : 70.0 Bytes (0%)
Language : French
Default : No
Forced : No
因此使用此命令
sed -n '/^Text #/!{H;$!d};x;/English/p' 'Some Media File.mkv.MDINFO'
我得到这个输出
General
Unique ID :
(0xDAC55CA81AA8F777EB9DE67AC6)
Complete name : Some Media File.mkv
Format : Matroska
Format version : Version 4
File size : 1.44 GiB
Duration : 46 min 22 s
Overall bit rate : 4 761 kb/s
Frame rate : 23.976 FPS
Encoded date : 2023-08-08 06:39:11 UTC
Writing application : mkvmerge v76.0 ('Celebration') 64-bit
Writing library : libebml v1.4.4 + libmatroska v1.7.1
Video
ID : 1
Format : HEVC
Format/Info : High Efficiency Video Coding
Format profile : Main 10@L4@Main
Codec ID : V_MPEGH/ISO/HEVC
Duration : 46 min 22 s
Bit rate : 4 501 kb/s
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 23.976 (24000/1001) FPS
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 10 bits
Bits/(Pixel*Frame) : 0.091
Stream size : 1.36 GiB (95%)
Writing library : x265 3.5+96-d844ab494:[Windows][GCC 12.2.0][64 bit] 10bit
Encoding settings : cpuid=1111039 / frame-threads=3 / numa-pools=8 / wpp / no-pmode / no-pme / no-psnr / no-ssim / log-level=2 / input-csp=1 / input-res=1920x1080 / interlace=0 / total-frames=0 / level-idc=0 / high-tier=1 / uhd-bd=0 / ref=4 / no-allow-non-conformance / no-repeat-headers / annexb / no-aud / no-eob / no-eos / no-hrd / info / hash=0 / temporal-layers=0 / open-gop / min-keyint=23 / keyint=250 / gop-lookahead=0 / bframes=8 / b-adapt=2 / b-pyramid / bframe-bias=0 / rc-lookahead=25 / lookahead-slices=4 / scenecut=40 / no-hist-scenecut / radl=0 / no-splice / no-intra-refresh / ctu=64 / min-cu-size=8 / rect / no-amp / max-tu-size=32 / tu-inter-depth=1 / tu-intra-depth=1 / limit-tu=0 / rdoq-level=2 / dynamic-rd=0.00 / no-ssim-rd / signhide / no-tskip / nr-intra=0 / nr-inter=0 / no-constrained-intra / strong-intra-smoothing / max-merge=3 / limit-refs=3 / limit-modes / me=3 / subme=3 / merange=57 / temporal-mvp / no-frame-dup / no-hme / weightp / no-weightb / no-analyze-src-pics / deblock=0:0 / no-sao / no-sao-non-deblock / rd=4 / selective-sao=0 / no-early-skip / rskip / no-fast-intra / no-tskip-fast / no-cu-lossless / no-b-intra / no-splitrd-skip / rdpenalty=0 / psy-rd=2.00 / psy-rdoq=1.00 / no-rd-refine / no-lossless / cbqpoffs=0 / crqpoffs=0 / rc=abr / bitrate=4500 / qcomp=0.60 / qpstep=4 / stats-write=0 / stats-read=2 / cplxblur=20.0 / qblur=0.5 / ipratio=1.40 / pbratio=1.30 / aq-mode=3 / aq-strength=1.00 / cutree / zone-count=0 / no-strict-cbr / qg-size=32 / no-rc-grain / qpmax=69 / qpmin=0 / no-const-vbv / sar=1 / overscan=0 / videoformat=5 / range=0 / colorprim=2 / transfer=2 / colormatrix=2 / chromaloc=0 / display-window=0 / cll=0,0 / min-luma=0 / max-luma=1023 / log2-max-poc-lsb=8 / vui-timing-info / vui-hrd-info / slices=1 / no-opt-qp-pps / no-opt-ref-list-length-pps / multi-pass-opt-rps / scenecut-bias=0.05 / no-opt-cu-delta-qp / aq-motion / no-hdr10 / no-hdr10-opt / no-dhdr10-opt / no-idr-recovery-sei / analysis-reuse-level=0 / analysis-save-reuse-level=0 / analysis-load-reuse-level=0 / scale-factor=0 / refine-intra=0 / refine-inter=0 / refine-mv=1 / refine-ctu-distortion=0 / no-limit-sao / ctu-info=0 / no-lowpass-dct / refine-analysis-type=0 / copy-pic=1 / max-ausize-factor=1.0 / no-dynamic-refine / no-single-sei / no-hevc-aq / no-svt / no-field / qp-adaptation-range=1.00 / scenecut-aware-qp=0conformance-window-offsets / right=0 / bottom=0 / decoder-max-rate=0 / no-vbv-live-multi-pass / no-mcstf / no-sbrc
Default : Yes
Forced : Yes
Color range : Limited
Audio
ID : 2
Format : E-AC-3
Format/Info : Enhanced AC-3
Commercial name : Dolby Digital Plus
Codec ID : A_EAC3
Duration : 46 min 22 s
Bit rate mode : Constant
Bit rate : 256 kb/s
Channel(s) : 6 channels
Channel layout : L R C LFE Ls Rs
Sampling rate : 48.0 kHz
Frame rate : 31.250 FPS (1536 SPF)
Compression mode : Lossy
Stream size : 79.3 MiB (5%)
Title : English
Language : English
Service kind : Complete Main
Default : Yes
Forced : No
Dialog Normalization : -27 dB
compr : -0.28 dB
mixlevel : 105 dB
roomtyp : Small
ltrtcmixlev : 3.0 dB
ltrtsurmixlev : -3.0 dB
lorocmixlev : 3.0 dB
lorosurmixlev : -3.0 dB
dialnorm_Average : -27 dB
dialnorm_Minimum : -27 dB
dialnorm_Maximum : -27 dB
Text #16
ID : 18
Format : UTF-8
Codec ID : S_TEXT/UTF8
Codec ID/Info : UTF-8 Plain Text
Duration : 46 min 21 s
Bit rate : 84 b/s
Frame rate : 0.311 FPS
Count of elements : 791
Stream size : 26.3 KiB (0%)
Language : English
Default : No
Forced : No
Text #17
ID : 19
Format : UTF-8
Codec ID : S_TEXT/UTF8
Codec ID/Info : UTF-8 Plain Text
Duration : 46 min 22 s
Bit rate : 75 b/s
Frame rate : 0.258 FPS
Count of elements : 655
Stream size : 23.4 KiB (0%)
Language : English
Default : No
Forced : No
我不是 sed 专家，但我试图理解为什么要打印 General、Video 和 Audio 块？我以为 sed 命令中的 /^Text #/ 会排除任何不以“Text #”开头的数据块？
仅输出带有英语注释的文本块是完美的，因为我想要处理大约 50 个这样的文件（以后可能还会处理更多），其中英文字幕文本是我唯一感兴趣的流，但英文文本在哪个流中并不一致。
因此，我的脚本的目的是识别专门用于英语文本流的流编号，然后通过 MKVToolNix 在后续脚本中使用该信息来删除所有非英语文本流，只保留英语流。我可能还会将英语流转储到 .srt 文件中，以单独保存作为备份。