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WIP m3u8 gen

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This commit is contained in:
Brooke Vibber 2023-03-08 11:21:37 -08:00
parent def37f3c5a
commit a3844d9c44
2 changed files with 76 additions and 11 deletions
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26
make-fmp4.sh
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@ -1,5 +1,6 @@
interval=10 interval=10
MOVFLAGS="-movflags +frag_keyframe+empty_moov -force_key_frames expr:gte(t,n_forced*$interval)" #MOVFLAGS="-movflags +frag_keyframe+empty_moov -force_key_frames expr:gte(t,n_forced*$interval)"
MOVFLAGS="-movflags +frag_keyframe+empty_moov"
AUDFLAGS="-movflags +empty_moov -frag_duration ${interval}000000" AUDFLAGS="-movflags +empty_moov -frag_duration ${interval}000000"
BITRATE_HI="-b:v 1250k" BITRATE_HI="-b:v 1250k"
BITRATE_LO="-b:v 1000k" BITRATE_LO="-b:v 1000k"
@ -18,20 +19,23 @@ INFILE=caminandes-llamigos.webm
set -e set -e
# Audio for HLS # Audio for HLS
ffmpeg -i $INFILE -vn $AUDIO_MP3 -y fmp4.audio.mp3 ffmpeg -i $INFILE -vn $AUDIO_MP3 -y fmp4.audio.mpeg.mp3
ffmpeg -i $INFILE -vn $AUDIO_AAC $AUDFLAGS -y fmp4.audio.aac.mp4 ffmpeg -i $INFILE -vn $AUDIO_AAC $AUDFLAGS -y fmp4.audio.aac.mp4
ffmpeg -i $INFILE -vn $AUDIO_OPUS $AUDFLAGS -y fmp4.audio.opus.mp4 ffmpeg -i $INFILE -vn $AUDIO_OPUS $AUDFLAGS -y fmp4.audio.opus.mp4
# Video for HLS # Video for HLS
ffmpeg -i $INFILE -an $VIDEO_H264 $MOVFLAGS -pass 1 -y fmp4.video.h264.mp4 ffmpeg -i $INFILE -an $VIDEO_H264 $MOVFLAGS -pass 1 -y fmp4.480p.h264.mp4
ffmpeg -i $INFILE -an $VIDEO_H264 $MOVFLAGS -pass 2 -y fmp4.video.h264.mp4 ffmpeg -i $INFILE -an $VIDEO_H264 $MOVFLAGS -pass 2 -y fmp4.480p.h264.mp4
ffmpeg -i $INFILE -an $VIDEO_VP9 $MOVFLAGS -pass 1 -y fmp4.video.vp9.mp4 ffmpeg -i $INFILE -an $VIDEO_VP9 $MOVFLAGS -pass 1 -y fmp4.480p.vp9.mp4
ffmpeg -i $INFILE -an $VIDEO_VP9 $MOVFLAGS -pass 2 -y fmp4.video.vp9.mp4 ffmpeg -i $INFILE -an $VIDEO_VP9 $MOVFLAGS -pass 2 -y fmp4.480p.vp9.mp4
# Playlist processing # Playlist processing
#php extract-playlist.php fmp4.audio.mp3 fmp4.audio.mp3.m3u8 php extract-playlist.php fmp4.audio.mpeg.mp3 > fmp4.audio.mpeg.mp3.m3u8
#php extract-playlist.php fmp4.audio.aac.mp4 fmp4.audio.aac.mp4.m3u8 php extract-playlist.php fmp4.audio.aac.mp4 > fmp4.audio.aac.mp4.m3u8
#php extract-playlist.php fmp4.audio.opus.mp4 fmp4.audio.opus.mp4.m3u8 php extract-playlist.php fmp4.audio.opus.mp4 > fmp4.audio.opus.mp4.m3u8
#php extract-playlist.php fmp4.video.h264.mp4 fmp4.video.h264.mp4.m3u8 php extract-playlist.php fmp4.480p.h264.mp4 > fmp4.480p.h264.mp4.m3u8
#php extract-playlist.php fmp4.video.vp9.mp4 fmp4.video.vp9.mp4.m3u8 php extract-playlist.php fmp4.480p.vp9.mp4 > fmp4.480p.vp9.mp4.m3u8
php meta-playlist.php fmp4 audio.opus.mp4 audio.mpeg.mp3 480p.vp9.mp4 > fmp4.vp9.m3u8
php meta-playlist.php fmp4 audio.opus.mp4 audio.mpeg.mp3 480p.vp9.mp4 480p.h264.mp4 > fmp4.vp9-h264.m3u8

61
meta-playlist.php Normal file
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@ -0,0 +1,61 @@
<?php
$argv = $_SERVER['argv'];
$self = array_shift( $argv );
$base = array_shift( $argv ); // "fmp4"
$audio = [];
$video = [];
$audioCodecs = [
'mpeg' => 'mp4a.40.34',
'opus' => 'opus'
];
// @fixme use correct settings based on the file
$videoCodecs = [
'vp9' => 'vp09.00.10.08',
'h264' => 'avc1.42e00a',
];
while ( count( $argv ) > 0 ) {
$track = array_shift( $argv );
[ $res, $codec, $ext ] = explode( '.', $track, 3 );
$filename = "$base.$res.$codec.$ext";
$playlist = "$filename.m3u8";
if ( $res === 'audio' ) {
$name = 'English'; // @fixme use correct unknown marker
$language = 'en-US'; // @fixme
$channels = 2; // @fixme
$uri = urlencode( $filename );
$audio[$codec] = "#EXT-X-MEDIA:TYPE=AUDIO,GROUP-ID=\"$codec\",NAME=\"$name\",LANGUAGE=\"$language\",AUTOSELECT=YES,DEFAULT=YES,CHANNELS=\"$channels\",URI=\"$uri\"";
} else {
$bandwidth = 1250000; // @fixme
$width = 854; // @fixme
$height = 480; // @fixme
$fps = 24.0; // @fixme
$baseLine = "#EXT-X-STREAM-INFO:BANDWIDTH=$bandwidth,RESOLUTION={$width}x{$height},FRAME-RATE={$fps}";
if ( count( $audio ) > 1 ) {
foreach ( array_keys( $audio ) as $audioCodec ) {
$codecs = implode( ',', [
$videoCodecs[$codec],
$audioCodecs[$audioCodec],
] );
$line = "$baseLine,CODECS=\"$codecs\"";
}
} else {
$codecs = $videoCodecs[$codec];
$line = "$baseLine,CODECS=\"$codecs\",AUDIO=\"$audioCodec\"";
}
}
}
$lines = array_concat(
[ '#EXTM3U' ],
array_values( $audio ),
$video
);
$m3u8 = implode( "\n", $lines );
print $m3u8;