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Add audio duration extraction #28

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68 changes: 33 additions & 35 deletions src/Filament/Resources/TranscriptResource/Pages/EditTranscript.php
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Original file line number Diff line number Diff line change
Expand Up @@ -7,6 +7,7 @@
use Filament\Notifications\Notification;
use Filament\Resources\Pages\EditRecord;
use Livewire\Attributes\On;
use Symfony\Component\Process\Process;
use Visualbuilder\FilamentTranscribe\Enums\TranscriptStatus;
use VisualBuilder\FilamentTranscribe\Filament\Actions\TranscribeAction;
use Visualbuilder\FilamentTranscribe\Filament\Resources\TranscriptResource;
Expand Down Expand Up @@ -37,41 +38,38 @@ public function mount(int|string $record): void

public function startJob()
{
// TODO see if we can find out how long the wemb file is?
// Read metadata with:- ffmpeg -i input.webm -c copy -map 0 -f webm fixed.webm
/** Sample output
* ffmpeg version 4.2.7-0ubuntu0.1 Copyright (c) 2000-2022 the FFmpeg developers
* built with gcc 9 (Ubuntu 9.4.0-1ubuntu1~20.04.1)
* configuration: --prefix=/usr --extra-version=0ubuntu0.1 --toolchain=hardened --libdir=/usr/lib/aarch64-linux-gnu --incdir=/usr/include/aarch64-linux-gnu --arch=arm64 --enable-gpl --disable-stripping --enable-avresample --disable-filter=resample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libjack --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librsvg --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-lv2 --enable-omx --enable-openal --enable-opencl --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libx264 --enable-shared
* libavutil 56. 31.100 / 56. 31.100
* libavcodec 58. 54.100 / 58. 54.100
* libavformat 58. 29.100 / 58. 29.100
* libavdevice 58. 8.100 / 58. 8.100
* libavfilter 7. 57.100 / 7. 57.100
* libavresample 4. 0. 0 / 4. 0. 0
* libswscale 5. 5.100 / 5. 5.100
* libswresample 3. 5.100 / 3. 5.100
* libpostproc 55. 5.100 / 55. 5.100
* Input #0, matroska,webm, from './storage/app/recordings/recording-20250728021508.webm':
* Metadata:
* encoder : Chrome
* Duration: N/A, start: 0.000000, bitrate: N/A
* Stream #0:0(eng): Audio: opus, 48000 Hz, mono, fltp (default)
* Output #0, webm, to 'fixed.webm':
* Metadata:
* encoder : Lavf58.29.100
* Stream #0:0(eng): Audio: opus, 48000 Hz, mono, fltp (default)
* Stream mapping:
* Stream #0:0 -> #0:0 (copy)
* Press [q] to stop, [?] for help
* size= 96kB time=00:00:05.99 bitrate= 130.9kbits/s speed=3.08e+03x
* video:0kB audio:95kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 1.327703%
*
*
*/

//Search for time=00:00:05.99 in the output
//Maybe put this code back and save extra info to the spatie media object
// ffprobe returns "N/A" for WebM audio files. Instead copy the file
// using ffmpeg and parse the progress output for the last "time=" value
// which represents the duration.

$media = $this->record->getFirstMedia('audio');
if ($media) {
$tempFile = tempnam(sys_get_temp_dir(), 'dur');
if ($tempFile !== false) {
$tempFile .= '.webm';
try {
$process = Process::fromShellCommandline(
'ffmpeg -i %s -c copy -map 0 -f webm -y %s 2>&1',
[$media->getPath(), $tempFile]
);
$process->run();

$output = $process->getErrorOutput() . $process->getOutput();

if (preg_match_all('/time=(\d{2}:\d{2}:\d{2}\.\d+)/', $output, $matches) && $matches[1]) {
$time = end($matches[1]);
[$h, $m, $s] = sscanf($time, '%d:%d:%f');
$duration = (int) round($h * 3600 + $m * 60 + $s);
$media->setCustomProperty('duration_seconds', $duration);
$media->save();
}
} catch (\Throwable $e) {
// Ignore errors reading metadata; duration will be filled later from AWS
} finally {
@unlink($tempFile);
}
}
}



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