[ALSA] pcm_oss - fix SNDCTL_DSP_GETOPTR not working correctly (c3a9cfac) · Commits · 戴 / test

ALSA<-OSS emulation This patch changes snd_pcm_oss_bytes() by adding a local variable for the frames -> bytes conversion, which means that the frame count is no longer corrupted by this conversion. Signed-off-by:

Roger Mach <bigmach@us.ibm.com> Signed-off-by:

Clemens Ladisch <clemens@ladisch.de>

sound/core/oss/pcm_oss.c

+3 −2

Original line number	Diff line number	Diff line
		@@ -124,11 +124,12 @@ int snd_pcm_plugin_append(snd_pcm_plugin_t *plugin)

		static long snd_pcm_oss_bytes(snd_pcm_substream_t *substream, long frames)
		{
		long bytes = 0;
		snd_pcm_runtime_t *runtime = substream->runtime;
		snd_pcm_uframes_t buffer_size = snd_pcm_lib_buffer_bytes(substream);
		frames = frames_to_bytes(runtime, frames);
		bytes = frames_to_bytes(runtime, frames);
		if (buffer_size == runtime->oss.buffer_bytes)
		return frames;
		return bytes;
		return (runtime->oss.buffer_bytes * frames) / buffer_size;
		}

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