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Add more ffmpeg transcoding presets

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Alex X
2023-11-02 14:56:58 +03:00
parent b4ed738d17
commit eb04fafaa4
1 changed files with 4 additions and 0 deletions
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4
internal/ffmpeg/ffmpeg.go
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@@ -64,18 +64,22 @@ var defaults = map[string]string{
// `-async 1` or `-min_comp 0` - force frame_size=960, important for WebRTC audio quality
"opus": "-c:a libopus -application:a lowdelay -frame_duration 20 -min_comp 0",
"pcmu": "-c:a pcm_mulaw -ar:a 8000 -ac:a 1",
"pcmu/8000": "-c:a pcm_mulaw -ar:a 8000 -ac:a 1",
"pcmu/16000": "-c:a pcm_mulaw -ar:a 16000 -ac:a 1",
"pcmu/48000": "-c:a pcm_mulaw -ar:a 48000 -ac:a 1",
"pcma": "-c:a pcm_alaw -ar:a 8000 -ac:a 1",
"pcma/8000": "-c:a pcm_alaw -ar:a 8000 -ac:a 1",
"pcma/16000": "-c:a pcm_alaw -ar:a 16000 -ac:a 1",
"pcma/48000": "-c:a pcm_alaw -ar:a 48000 -ac:a 1",
"aac": "-c:a aac", // keep sample rate and channels
"aac/16000": "-c:a aac -ar:a 16000 -ac:a 1",
"mp3": "-c:a libmp3lame -q:a 8",
"pcm": "-c:a pcm_s16be -ar:a 8000 -ac:a 1",
"pcm/8000": "-c:a pcm_s16be -ar:a 8000 -ac:a 1",
"pcm/16000": "-c:a pcm_s16be -ar:a 16000 -ac:a 1",
"pcm/48000": "-c:a pcm_s16be -ar:a 48000 -ac:a 1",
"pcml": "-c:a pcm_s16le -ar:a 8000 -ac:a 1",
"pcml/8000": "-c:a pcm_s16le -ar:a 8000 -ac:a 1",
"pcml/44100": "-c:a pcm_s16le -ar:a 44100 -ac:a 1",
// hardware Intel and AMD on Linux