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Commit 5ac0fab9 authored by Jaroslav Kysela's avatar Jaroslav Kysela
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[ALSA] OSS PCM emulation - The 2nd final fix for SNDCTL_DSP_GETOPTR problem



ALSA<-OSS emulation
The problem was negative/wrong result (info.bytes) in a specific condition at
playback startup.

Signed-off-by: default avatarJaroslav Kysela <perex@suse.cz>
parent 98c7f212
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+4 −4
Original line number Diff line number Diff line
@@ -1537,13 +1537,13 @@ static int snd_pcm_oss_get_ptr(snd_pcm_oss_file_t *pcm_oss_file, int stream, str
			snd_pcm_oss_simulate_fill(substream, delay);
		info.bytes = snd_pcm_oss_bytes(substream, runtime->status->hw_ptr) & INT_MAX;
	} else {
		delay = snd_pcm_oss_bytes(substream, delay) + fixup;
		info.blocks = delay / runtime->oss.period_bytes;
		delay = snd_pcm_oss_bytes(substream, delay);
		if (stream == SNDRV_PCM_STREAM_PLAYBACK) {
			if (runtime->oss.bytes == 0)
				delay = 0;
			info.blocks = (runtime->oss.buffer_bytes - delay - fixup) / runtime->oss.period_bytes;
			info.bytes = (runtime->oss.bytes - delay) & INT_MAX;
		} else {
			delay += fixup;
			info.blocks = delay / runtime->oss.period_bytes;
			info.bytes = (runtime->oss.bytes + delay) & INT_MAX;
		}
	}