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Henrik RydgårdandClaude Opus 5.5
e031502d27
FFmpegAudioDecoder only used swresample to turn the decoders' output into interleaved stereo s16, at the same sample rate. A small conversion does that now, with swresample's rounding: floats go through lrintf and are clamped, and mono goes to both channels at -3 dB, the coefficient swresample's mixing matrix uses. Its output is sample-identical to swresample's for the MP3, AAC and ATRAC3+ decoders, mono and stereo. With "Use FFMPEG for all compressed audio", ATRAC3 got closed on its first frame: its decoder sets no channel layout, and swresample refused to set up without one. The conversion goes by the channel count, so that no longer fails. The system-FFmpeg build no longer looks for libswresample. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>