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| author | Max Kellermann <max@duempel.org> | 2014-08-31 13:58:04 +0200 |
|---|---|---|
| committer | Max Kellermann <max@duempel.org> | 2014-08-31 14:01:57 +0200 |
| commit | 2406152576b512c6fedb4eb3b6d3849448d84e6b (patch) | |
| tree | ce0f3ee03f4d58a58e581c5de6fa60454a868136 /src/output/AlsaOutputPlugin.cxx | |
| parent | af260b5a64b038c61d987d9ca7e3a3e96c656cde (diff) | |
| download | mpd-2406152576b512c6fedb4eb3b6d3849448d84e6b.tar.gz mpd-2406152576b512c6fedb4eb3b6d3849448d84e6b.tar.xz mpd-2406152576b512c6fedb4eb3b6d3849448d84e6b.zip | |
output/alsa: fix endless loop at end of file in dsd_usb mode
Diffstat (limited to 'src/output/AlsaOutputPlugin.cxx')
| -rw-r--r-- | src/output/AlsaOutputPlugin.cxx | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/src/output/AlsaOutputPlugin.cxx b/src/output/AlsaOutputPlugin.cxx index 76eea5bd6..f8aae13a1 100644 --- a/src/output/AlsaOutputPlugin.cxx +++ b/src/output/AlsaOutputPlugin.cxx @@ -815,7 +815,16 @@ alsa_play(struct audio_output *ao, const void *chunk, size_t size, } } + const size_t original_size = size; chunk = ad->pcm_export->Export(chunk, size, size); + if (size == 0) + /* the DoP (DSD over PCM) filter converts two frames + at a time and ignores the last odd frame; if there + was only one frame (e.g. the last frame in the + file), the result is empty; to avoid an endless + loop, bail out here, and pretend the one frame has + been played */ + return original_size; assert(size % ad->out_frame_size == 0); |