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[PATCH v3 13/15] ossaudio: reduce effective playback buffer size
From: |
Volker Rümelin |
Subject: |
[PATCH v3 13/15] ossaudio: reduce effective playback buffer size |
Date: |
Tue, 1 Mar 2022 20:13:09 +0100 |
Return the free buffer size for the mmapped case in function
oss_buffer_get_free() to reduce the effective playback buffer
size. All intermediate audio playback buffers become temporary
buffers.
Signed-off-by: Volker Rümelin <vr_qemu@t-online.de>
---
audio/ossaudio.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/audio/ossaudio.c b/audio/ossaudio.c
index 1bd6800840..da9c232222 100644
--- a/audio/ossaudio.c
+++ b/audio/ossaudio.c
@@ -394,7 +394,7 @@ static size_t oss_buffer_get_free(HWVoiceOut *hw)
OSSVoiceOut *oss = (OSSVoiceOut *)hw;
if (oss->mmapped) {
- return INT_MAX;
+ return oss_get_available_bytes(oss);
} else {
return audio_generic_buffer_get_free(hw);
}
@@ -402,9 +402,10 @@ static size_t oss_buffer_get_free(HWVoiceOut *hw)
static void *oss_get_buffer_out(HWVoiceOut *hw, size_t *size)
{
- OSSVoiceOut *oss = (OSSVoiceOut *) hw;
+ OSSVoiceOut *oss = (OSSVoiceOut *)hw;
+
if (oss->mmapped) {
- *size = MIN(oss_get_available_bytes(oss), hw->size_emul -
hw->pos_emul);
+ *size = hw->size_emul - hw->pos_emul;
return hw->buf_emul + hw->pos_emul;
} else {
return audio_generic_get_buffer_out(hw, size);
--
2.34.1
- [PATCH v3 03/15] audio: add function audio_pcm_hw_conv_in(), (continued)
- [PATCH v3 03/15] audio: add function audio_pcm_hw_conv_in(), Volker Rümelin, 2022/03/01
- [PATCH v3 05/15] paaudio: increase default latency to 46ms, Volker Rümelin, 2022/03/01
- [PATCH v3 07/15] audio: copy playback stream in sequential order, Volker Rümelin, 2022/03/01
- [PATCH v3 06/15] jackaudio: use more jack audio buffers, Volker Rümelin, 2022/03/01
- [PATCH v3 04/15] audio: inline function audio_pcm_sw_get_rpos_in(), Volker Rümelin, 2022/03/01
- [PATCH v3 08/15] audio: add pcm_ops function table for capture backend, Volker Rümelin, 2022/03/01
- [PATCH v3 09/15] Revert "audio: fix wavcapture segfault", Volker Rümelin, 2022/03/01
- [PATCH v3 14/15] paaudio: fix samples vs. frames mix-up, Volker Rümelin, 2022/03/01
- [PATCH v3 13/15] ossaudio: reduce effective playback buffer size,
Volker Rümelin <=
- [PATCH v3 10/15] audio: restore mixing-engine playback buffer size, Volker Rümelin, 2022/03/01
- [PATCH v3 11/15] paaudio: reduce effective playback buffer size, Volker Rümelin, 2022/03/01
- [PATCH v3 12/15] dsoundaudio: reduce effective playback buffer size, Volker Rümelin, 2022/03/01
- [PATCH v3 15/15] sdlaudio: fix samples vs. frames mix-up, Volker Rümelin, 2022/03/01