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Migrate audio transcoding from DASH to a single AAC (.m4a) file

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This commit is contained in:
Admin
2026-06-02 19:05:11 +02:00
parent 2978b69654
commit b737d59cbe
11 changed files with 35 additions and 50 deletions
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Infrastructure/Services/AudioTranscoderService.cs
+11 -17
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@@ -11,29 +11,29 @@ namespace Musify.Infrastructure.Services
{
record FfmpegExecutionResult(int ExitCode, string StandardOutput, string StandardError);
public async Task<int> TranscodeToDashAsync(Stream audioStream, string destinationPath, CancellationToken cancellationToken)
public async Task<int> TranscodeToAudioFileAsync(Stream audioStream, string destinationPath, CancellationToken cancellationToken)
{
try
{
Directory.CreateDirectory(destinationPath);
logger.LogInformation("Starting audio transcoding to DASH for {DestinationPath}", destinationPath);
logger.LogInformation("Starting audio transcoding for {DestinationPath}", destinationPath);
var executionResult = await ExecuteFfmpegWithInputAsync(
BuildDashArguments(destinationPath, audioTranscoderConfiguration.Ffmpeg),
BuildAudioFileArguments(destinationPath, audioTranscoderConfiguration.Ffmpeg),
destinationPath,
audioStream,
"TranscodeToDash",
"TranscodeToAudioFile",
cancellationToken);
if (executionResult.ExitCode != 0)
{
logger.LogError("Audio transcoding to DASH failed with exit code {ExitCode}. Output: {StandardOutput}, Error: {StandardError}",
logger.LogError("Audio transcoding failed with exit code {ExitCode}. Output: {StandardOutput}, Error: {StandardError}",
executionResult.ExitCode, executionResult.StandardOutput, executionResult.StandardError);
}
else
{
logger.LogInformation("Audio transcoding to DASH completed for {DestinationPath}", destinationPath);
logger.LogInformation("Audio transcoding completed for {DestinationPath}", destinationPath);
}
return executionResult.ExitCode;
@@ -45,7 +45,7 @@ namespace Musify.Infrastructure.Services
}
catch (Exception exception)
{
logger.LogError(exception, "Failed to transcode audio to DASH for {DestinationPath}", destinationPath);
logger.LogError(exception, "Failed to transcode audio for {DestinationPath}", destinationPath);
throw;
}
}
@@ -188,9 +188,9 @@ namespace Musify.Infrastructure.Services
}
}
static string BuildDashArguments(string outputDirectory, FfmpegConfiguration ffmpegConfiguration)
static string BuildAudioFileArguments(string outputDirectory, FfmpegConfiguration ffmpegConfiguration)
{
var manifestPath = Path.Combine(outputDirectory, ffmpegConfiguration.ManifestFileName);
var outputPath = Path.Combine(outputDirectory, ffmpegConfiguration.OutputFileName);
var additionalArguments = string.IsNullOrWhiteSpace(ffmpegConfiguration.AdditionalArguments)
? string.Empty
: $" {ffmpegConfiguration.AdditionalArguments.Trim()}";
@@ -204,15 +204,9 @@ namespace Musify.Infrastructure.Services
$"-ac {ffmpegConfiguration.AudioChannels} " +
$"-ar {ffmpegConfiguration.AudioSampleRate} " +
$"-profile:a {ffmpegConfiguration.AudioProfile} " +
"-f dash " +
$"-seg_duration {ffmpegConfiguration.SegmentDurationSeconds} " +
"-streaming 1 " +
"-use_template 1 " +
"-use_timeline 0 " +
$"-init_seg_name \"{ffmpegConfiguration.InitSegmentName}\" " +
$"-media_seg_name \"{ffmpegConfiguration.MediaSegmentName}\"" +
"-movflags +faststart" +
additionalArguments +
$" \"{manifestPath}\"";
$" \"{outputPath}\"";
}
static string BuildValidateAudioArguments(string filePath)