Commit 5ac0fab9 authored by Jaroslav Kysela's avatar Jaroslav Kysela
Browse files

[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

sound/core/oss/pcm_oss.c

+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;

		}

	}