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WIP got hls with aac and vp9 fixed with init segments

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This commit is contained in:
Brooke Vibber 2021-10-22 17:44:04 -07:00
commit f7a7059e39
7 changed files with 81 additions and 69 deletions
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54
transcode-segment.php
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@ -66,6 +66,7 @@ class Video {
'common' => [
'-vcodec', 'libvpx-vp9',
'-row-mt', '1',
'-tile-columns', '4',
],
'fast' => [
'-quality', 'realtime',
@ -206,29 +207,37 @@ class Transcoder {
}
private function ffmpeg( $options, $outfile, $container ) {
$segmentOptions = [];
$playlist = "$outfile.m3u8";
$init = "$outfile.init.$container";
$segment = "$outfile.%04d.$container";
if ( $container == 'mp4' ) {
$segmentOptions[] = '-segment_format_options';
//$segmentOptions[] = 'movflags=+frag_keyframe+empty_moov';
$segmentOptions[] = 'movflags=frag_keyframe';
}
if ( $container == 'mp3' ) {
$segmentOptions[] = '-segment_format_options';
$segmentOptions[] = 'id3v2_version=0:write_xing=0:write_id3v1=0';
// HLS muxer seems to give the right options for fMP4
$segmentOptions = [
'-f', 'hls',
'-hls_segment_type', 'fmp4',
'-hls_time', '10',
'-hls_playlist_type', 'vod',
'-hls_fmp4_init_filename', $init,
'-hls_segment_filename', $segment,
'-y', $playlist,
];
} elseif ( $container == 'mp3' ) {
// For MP3, segment it raw.
// We'll need to postprocess to add an ID3 tag with timestamp.
$segmentOptions = [
'-f', 'segment',
'-segment_format_options', 'id3v2_version=0:write_xing=0:write_id3v1=0',
'-segment_time', '10',
'-segment_list', $playlist,
'-y', $segment
];
} else {
die( 'missing container in config' );
}
$ffmpegOptions = array_merge( [
'-hide_banner',
'-i',
$this->source->filename,
'-f', 'segment',
'-segment_time', '10',
'-segment_list', "$outfile.m3u8",
],
$segmentOptions,
$options,
[
'-y', "$outfile.%04d.$container"
] );
'-i', $this->source->filename,
], $options, $segmentOptions);
$output = run( 'ffmpeg', $ffmpegOptions );
}
@ -298,11 +307,16 @@ foreach ( $infiles as $filename ) {
$codec->audio('mp3');
$codec->audio('aac');
foreach ( Video::FORMATS['vp9']['resolutions'] as $res => $format ) {
if ( $format['width'] <= $source->width && $format['height'] <= $source->height ) {
$codec->video('vp9', $res, 'fast');
}
}
/*
foreach ( Video::FORMATS['vp9']['resolutions'] as $res => $format ) {
if ( $format['width'] <= $source->width && $format['height'] <= $source->height ) {
$codec->video('vp9', $res, 'pass1');
$codec->video('vp9', $res, 'pass2');
}
}
*/
}