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powershell - ffmpeg在编码时保持完整标题

问题描述

我正在尝试使用元数据中的标题标签来命名批处理编码中的音频和子文件。我遇到的问题是，如果标题说英语评论，它只会抓住英语或未切割的日本语，它只会抓住日本语。 

$audioTracks = ffprobe $f.FullName -show_entries stream=index:stream_tags=title -select_streams a -of compact=p=0:nk=1 
$audioTracks = $audioTracks.split("")
foreach($audio in $audioTracks) {
    $ID = $audio.split("|")[0];
    $audioName = $audio.split("|")[1];
    ffmpeg -i $f.FullName -threads 0 -muxdelay 0 -y -map 0:$ID -codec aac -f segment -segment_time 10 -segment_list_size 0 -segment_list out/$f/audio/audio_"$audioName.m3u8" -segment_format mpegts out/$f/audio/"audio_$audioName%d.ts"

标签： powershellencodingffmpeg

解决方案

  $sw = [Diagnostics.Stopwatch]::StartNew()
 $files = Get-ChildItem ${Get-Location}
 $loco = Get-Location
 $p1 = Join-Path -Path $loco -ChildPath "/out"
 New-Item -ItemType Directory -Force -Path $p1



 function lnCodeTransform {
param( $String )
echo $String
switch ($String)
{
    "jpn" {"jp"}
    "eng" {"en"}
    "esp" {"es"}
    "fra" {"fr"}
    "deu" {"de"}
    default {$String}
    }
  }


function lnNameTransform {
param( $String )
switch ($String)
{
    "jpn" {"Japanese"}
    "eng" {"English"}
    "esp" {"Spanish"}
    "fra" {"French"}
    "deu" {"German"}
    default {$String}
   }
  }


foreach ($f in $files){ 
if ($f.Name -eq "out"){
    continue;
}
$p2 = Join-Path -Path $loco -ChildPath "/out/" | Join-Path -ChildPath $f
New-Item -ItemType Directory -Force -Path $p2/audio
New-Item -ItemType Directory -Force -Path $p2/video
New-Item -ItemType Directory -Force -Path $p2/subtitle
$sb = [System.Text.StringBuilder]::new();
[void]$sb.AppendLine( '#EXTM3U' )
[void]$sb.AppendLine( '#EXT-X-VERSION:3' )
#[void]$sb.AppendLine( '#EXT-X-STREAM-INF:BANDWIDTH=800000,RESOLUTION=640x360' )
#[void]$sb.AppendLine( '360p.m3u8' )


New-Item -ItemType Directory -Force -Path $p2
$resStr = ffprobe -v error -select_streams v:0 -show_entries stream=height -of csv=s=x:p=0 $f.FullName;
$res = [convert]::ToInt32($resStr)
$audioTracks = ffprobe $f.FullName -show_entries stream=index:stream_tags=language -select_streams a -of compact=p=0:nk=1 
$audioTracks = $audioTracks.split("\n")
foreach($audio in $audioTracks) {
    $ID = $audio.split("|")[0];
    $audioName = $audio.split("|")[1];
    ffmpeg -i $f.FullName -threads 0 -muxdelay 0 -y -map 0:$ID -codec aac -f segment -segment_time 10 -segment_list_size 0 -segment_list out/$f/audio/audio_"$ID.m3u8" -segment_format mpegts out/$f/audio/"audio_$ID""_%d.ts"
    $name = lnNameTransform($audioName)
    $code = lnCodeTransform($audioName)
    [void]$sb.AppendLine( "#EXT-X-MEDIA:TYPE=AUDIO,GROUP-ID=`"aac`",LANGUAGE=`"$code`",NAME=`"$name`",DEFAULT=NO,AUTOSELECT=NO,URI=`"audio/audio_$ID.m3u8`"" )
}
$subTracks = ffprobe $f.FullName -show_entries stream=index:stream_tags=language -select_streams s -of compact=p=0:nk=1 
$subTracks = $subTracks.split("")
foreach($subtitle in $subTracks) {
    $ID = $subtitle.split("|")[0];
    $subName = $subtitle.split("|")[1];
    ffmpeg -i $f.FullName -map 0:$ID -f segment -segment_time 10 -segment_list_size 0 -segment_list out/$f/subtitle/sub_"$subName.m3u8" -segment_format webvtt -scodec webvtt out/$f/subtitle/"sub_$subName%d.vtt"
    $name = lnNameTransform($subName)
    $code = lnCodeTransform($subName)
    [void]$sb.AppendLine( "#EXT-X-MEDIA:TYPE=SUBTITLES,GROUP-ID=`"subs`",LANGUAGE=`"$code`",NAME=`"$name`",FORCED=NO,AUTOSELECT=NO,URI=`"subtitle/sub_$subName.m3u8`"" )
}

[void]$sb.AppendLine( '#EXT-X-STREAM-INF:BANDWIDTH=1400000,CODECS="avc1.4d4015,mp4a.40.2",RESOLUTION=842x480,AUDIO="aac",SUBTITLES="subs"' )
[void]$sb.AppendLine( 'video/480p.m3u8' )
#ffmpeg -i $f.FullName -c:a copy -vf scale=w=640:h=360:force_original_aspect_ratio=decrease -c:a aac -ar 48000  -rc cqp -qp_p 0 -qp_i 1 -profile:v main -crf 20 -sc_threshold 0 -g 48 -keyint_min 48 -hls_time 4 -hls_playlist_type vod  -b:v 800k -maxrate 856k -bufsize 1200k -b:a 96k -hls_segment_filename out/$f/360p_%03d.ts out/$f/360p.m3u8 -vf scale=w=842:h=480:force_original_aspect_ratio=decrease -c:a aac -ar 48000 -gpu 1 -c:v h264_amf -rc cqp -qp_p 0 -qp_i 1 -profile:v main -crf 20 -sc_threshold 0 -g 48 -keyint_min 48 -hls_time 4 -hls_playlist_type vod -b:v 1400k -maxrate 1498k -bufsize 2100k -b:a 128k -hls_segment_filename out/$f/480p_%03d.ts out/$f/480p.m3u8 -vf  scale=w=1280:h=720:force_original_aspect_ratio=decrease -c:a aac -ar 48000 -gpu 1 -c:v h264_amf -rc cqp -qp_p 0 -qp_i 1 -profile:v main -crf 20 -sc_threshold 0 -g 48 -keyint_min 48 -hls_time 4 -hls_playlist_type vod -b:v 2800k -maxrate 2996k -bufsize 4200k -b:a 128k -hls_segment_filename out/$f/720p_%03d.ts out/$f/720p.m3u8 -vf  scale=w=1920:h=1080:force_original_aspect_ratio=decrease -c:a aac -ar 48000 -gpu 1 -c:v h264_amf -rc cqp -qp_p 0 -qp_i 1 -profile:v main -crf 20 -sc_threshold 0 -g 48 -keyint_min 48 -hls_time 4 -hls_playlist_type vod -b:v 5000k -maxrate 5350k -bufsize 7500k -b:a 192k -hls_segment_filename out/$f/1080p_%03d.ts out/$f/1080p.m3u8
#ffmpeg -hwaccel auto -hwaccel_device 0 -i $f.FullName -c:v h264_nvenc -preset slow -pix_fmt yuv420p -c:a aac -filter:v scale=360:640 -ar 48000  -rc cqp -qp_p 0 -qp_i 1 -profile:v main -crf 23 -sc_threshold 0 -g 48 -b:v 800k -maxrate 856k -bufsize 1200k -b:a 96k  -keyint_min 4 -start_number 0 -hls_time 10 -hls_playlist_type vod  -hls_list_size 0 -f hls -hls_segment_filename out/$f/360p_%03d.ts out/$f/360p.m3u8 
#ffmpeg -hwaccel auto -hwaccel_device 0 -i $f.FullName -c:v h264 -profile:v main -c:a aac -filter:v scale=360:640 -start_number 0 -hls_time 10 -hls_list_size 0 -f hls -hls_segment_filename out/$f/360p_%03d.ts out/$f/360p.m3u8 
ffmpeg -i $f.FullName -c:v h264_nvenc -crf 22 -preset slow -pix_fmt yuv420p -filter:v scale="trunc(oh*a/2)*2:480" -map 0:v -start_number 0 -hls_time 10 -hls_list_size 0 -f hls -hls_segment_filename out/$f/video/480p_%03d.ts out/$f/video/480p.m3u8
If($res -ge 720) {
    ffmpeg -i $f.FullName -c:v h264_nvenc -crf 20 -preset slow -pix_fmt yuv420p -filter:v scale="trunc(oh*a/2)*2:720" -map 0:v -start_number 0 -hls_time 10 -hls_list_size 0 -f hls -hls_segment_filename out/$f/video/720p_%03d.ts out/$f/video/720p.m3u8
    [void]$sb.AppendLine( '#EXT-X-STREAM-INF:BANDWIDTH=2800000,CODECS="avc1.4d4015,mp4a.40.2",RESOLUTION=1280x720,AUDIO="aac",SUBTITLES="subs"' )
    [void]$sb.AppendLine( 'video/720p.m3u8' )
}   
If($res -ge 1080) {
    ffmpeg -i $f.FullName -c:v h264_nvenc -crf 18 -preset slow -pix_fmt yuv420p -filter:v scale="trunc(oh*a/2)*2:1080" -map 0:v -start_number 0 -hls_time 10 -hls_list_size 0 -f hls -hls_segment_filename out/$f/video/1080p_%03d.ts out/$f/video/1080p.m3u8
    [void]$sb.AppendLine( '#EXT-X-STREAM-INF:BANDWIDTH=5000000,CODECS="avc1.4d4015,mp4a.40.2",RESOLUTION=1920x1080,AUDIO="aac",SUBTITLES="subs"' )
    [void]$sb.AppendLine( 'video/1080p.m3u8' )
}

$p3 = Join-Path -Path $p2 -ChildPath "/index.m3u8"
#echo $index | Out-File -Encoding UTF8 -LiteralPath $p3
echo $sb.ToString()
[System.IO.File]::WriteAllLines($p3, $sb.ToString().Trim().replace("`r`n", "`n"))
 }
 sw.Stop()
  echo $sw.Elapsed

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