20221125 Use PR2023 to automatically identify the subtitles of the MKV video generated by obs-studio screen recording

20221125 Use PR2023 to automatically identify the subtitles of the MKV video generated by obs-studio screen recording
2022/11/25 19:07

01 obs.png

obs studio （64bit）

02 obs settings.png

03 obs output.png

04 obs is MKV.png by default

05 change obs to mkv to MP4.png

WARNING: Recordings saved to MP4/MOV will not be recoverable if the file cannot be completed (eg due to blue screen BSOD, power loss, etc.). If you want to record multiple audio tracks, please consider recording in MKV and repackage the recording to MP4/MOV when you are done (File→Video to Package)

06 obs video transfer package.png

07 obs conversion package.png

08 obs conversion package 2.png

09Conversion package.png

10Conversion and encapsulation completed.png

Transcapsulation completed
The video has been transcapsulated
OK

11PR import file.png

Importing files

12Import file renderings.png

13PR transcript sequence.png

14 PR transcription audio data.png

Creating automated transcriptions...
Rendering audio data

14PR transcription Simplified Chinese.png

Create Transcript
Language: Simplified Chinese (the default lock is English, there is a problem here, it will not remember the last language)

16PR recognition completed.png

Start time: 13:57 on 2022-11-24
End time: 16:47 on 2022-11-24
The video is 4 hours and 23 minutes, about 4.5 hours, and it takes about 3 hours to complete the recognition.

17Create descriptive subtitles.png

Create Captions

18 create.png from sequence transcription

Create subtitles

19Creating subtitles.png

20 Generate subtitles completed.png

21 Export to SRT file.png

22SRT.png

Method 2: MKV→MKA→MP4 (video files with only audio)

31 MKV.png

https://mkvtoolnix.download/downloads.html#windows
https://www.fosshub.com/MKVToolNix.html

32 Import MKV.png

start mixing

33 MKV2mka.png

34 ffmpeg1.png

ffmpeg -i "2022-07-02 13-10-13.mka" -acodec copy "2022-07-02 13-10-13.mp4"

C:\Users\ASUS>cd C:\AI-OCR

C:\AI-OCR>
C:\AI-OCR>ffmpeg -i "2022-07-02 13-10-13.mka" -acodec copy "2022-07-02 13-10-13.mp4"
ffmpeg version N-106352-g2a1eae2179-20220319 Copyright (c) 2000-2022 the FFmpeg developers
built with gcc 11.2.0 (crosstool-NG 1.24.0.533_681aaef)
configuration: --prefix=/ffbuild/prefix --pkg-config-flags=--static --pkg-config=pkg-config --cross-prefix=x86_64-w64-mingw32- --arch=x86_64 --target-os=mingw32 --enable-gpl --enable-version3 --disable-debug --disable-w32threads --enable-pthreads --enable-iconv --enable-libxml2 --enable-zlib --enable-libfreetype --enable-libfribidi --enable-gmp --enable-lzma --enable-fontconfig --enable-libvorbis --enable-opencl --disable-libpulse --enable-libvmaf --disable-libxcb --disable-xlib --enable-amf --enable-libaom --enable-avisynth --enable-libdav1d --enable-libdavs2 --disable-libfdk-aac --enable-ffnvcodec --enable-cuda-llvm --enable-frei0r --enable-libgme --enable-libass --enable-libbluray --enable-libmp3lame --enable-libopus --enable-librist --enable-libtheora --enable-libvpx --enable-libwebp --enable-lv2 --enable-libmfx --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenh264 --enable-libopenjpeg --enable-libopenmpt --enable-librav1e --enable-librubberband --enable-schannel --enable-sdl2 --enable-libsoxr --enable-libsrt --enable-libsvtav1 --enable-libtwolame --enable-libuavs3d --disable-libdrm --disable-vaapi --enable-libvidstab --enable-vulkan --enable-libshaderc --enable-libplacebo --enable-libx264 --enable-libx265 --enable-libxavs2 --enable-libxvid --enable-libzimg --enable-libzvbi --extra-cflags=-DLIBTWOLAME_STATIC --extra-cxxflags= --extra-ldflags=-pthread --extra-ldexeflags= --extra-libs=-lgomp --extra-version=20220319
libavutil 57. 24.101 / 57. 24.101
libavcodec 59. 25.100 / 59. 25.100
libavformat 59. 20.101 / 59. 20.101
libavdevice 59. 6.100 / 59. 6.100
libavfilter 8. 29.100 / 8. 29.100
libswscale 6. 6.100 / 6. 6.100
libswresample 4. 6.100 / 4. 6.100
libpostproc 56. 5.100 / 56. 5.100
Input #0, matroska,webm, from '2022-07-02 13-10-13.mka':
Metadata:
encoder : libebml v1.4.4 + libmatroska v1.7.1
creation_time : 2022-11-24T08:54:07.000000Z
Duration: 04:23:37.92, start: 0.000000, bitrate: 137 kb/s
Stream #0:0: Audio: aac (LC), 48000 Hz, stereo, fltp (default)
Metadata:
title : simple_aac_recording
BPS : 136245
DURATION : 04:23:37.920338304
NUMBER_OF_FRAMES: 741465
NUMBER_OF_BYTES : 269389856
_STATISTICS_WRITING_APP: mkvmerge v72.0.0 ('Minuano (Six-eight)') 64-bit
_STATISTICS_WRITING_DATE_UTC: 2022-11-24 08:54:07
_STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
Output #0, mp4, to '2022-07-02 13-10-13.mp4':
Metadata:
encoder : Lavf59.20.101
Stream #0:0: Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp (default)
Metadata:
title : simple_aac_recording
BPS : 136245
DURATION : 04:23:37.920338304
NUMBER_OF_FRAMES: 741465
NUMBER_OF_BYTES : 269389856
_STATISTICS_WRITING_APP: mkvmerge v72.0.0 ('Minuano (Six-eight)') 64-bit
_STATISTICS_WRITING_DATE_UTC: 2022-11-24 08:54:07
_STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
Stream mapping:
Stream #0:0 -> #0:0 (copy)
Press [q] to stop, [?] for help
size= 267995kB time=04:23:37.92 bitrate= 138.8kbits/s speed=3.76e+03x
video:0kB audio:263076kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 1.869737%