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Fix a bug with the audio ring buffer data source.

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This commit is contained in:
David Reid
2026-01-25 18:45:05 +10:00
parent 7c3b8fab04
commit ca6afd1f49
1 changed files with 23 additions and 1 deletions
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miniaudio.h
+23 -1
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@@ -63597,7 +63597,29 @@ MA_API ma_uint32 ma_ring_buffer_capacity(const ma_ring_buffer* pRingBuffer)
static ma_result ma_audio_ring_buffer__data_source_on_read(ma_data_source* pDataSource, void* pFrames, ma_uint64 frameCount, ma_uint64* pFramesRead) static ma_result ma_audio_ring_buffer__data_source_on_read(ma_data_source* pDataSource, void* pFrames, ma_uint64 frameCount, ma_uint64* pFramesRead)
{ {
return ma_audio_ring_buffer_read_pcm_frames((ma_audio_ring_buffer*)pDataSource, pFrames, frameCount, pFramesRead); ma_audio_ring_buffer* pRingBuffer = (ma_audio_ring_buffer*)pDataSource;
ma_result result;
ma_uint64 framesRead;
result = ma_audio_ring_buffer_read_pcm_frames(pRingBuffer, pFrames, frameCount, &framesRead);
if (result != MA_SUCCESS) {
return result;
}
/*
There is no notion of an "end" in a ring buffer. If we didn't have enough data to fill the requested frame
count we'll need to pad with silence. If we don't do this, framesRead might equal 0 which will result in
the data source layer at a higher level translating this to MA_AT_END which is incorrect for a ring buffer.
*/
if (framesRead < frameCount) {
ma_silence_pcm_frames(ma_offset_pcm_frames_ptr(pFrames, framesRead, pRingBuffer->format, pRingBuffer->channels), (frameCount - framesRead), pRingBuffer->format, pRingBuffer->channels);
framesRead = frameCount;
}
*pFramesRead = framesRead;
return MA_SUCCESS;
} }
static ma_result ma_audio_ring_buffer__data_source_on_get_data_format(ma_data_source* pDataSource, ma_format* pFormat, ma_uint32* pChannels, ma_uint32* pSampleRate, ma_channel* pChannelMap, size_t channelMapCap) static ma_result ma_audio_ring_buffer__data_source_on_get_data_format(ma_data_source* pDataSource, ma_format* pFormat, ma_uint32* pChannels, ma_uint32* pSampleRate, ma_channel* pChannelMap, size_t channelMapCap)