diff options
Diffstat (limited to 'meta-pipewire/recipes-multimedia/pipewire/pipewire/0007-alsa-Set-period_size-depending-on-hardware.patch')
| -rw-r--r-- | meta-pipewire/recipes-multimedia/pipewire/pipewire/0007-alsa-Set-period_size-depending-on-hardware.patch | 35 |
1 files changed, 0 insertions, 35 deletions
diff --git a/meta-pipewire/recipes-multimedia/pipewire/pipewire/0007-alsa-Set-period_size-depending-on-hardware.patch b/meta-pipewire/recipes-multimedia/pipewire/pipewire/0007-alsa-Set-period_size-depending-on-hardware.patch deleted file mode 100644 index f9649400e..000000000 --- a/meta-pipewire/recipes-multimedia/pipewire/pipewire/0007-alsa-Set-period_size-depending-on-hardware.patch +++ /dev/null @@ -1,35 +0,0 @@ -From bbf9c767d5b353142e03080762bdd805e124d50b Mon Sep 17 00:00:00 2001 -From: Walter Lozano <walter.lozano@collabora.com> -Date: Fri, 7 Aug 2020 10:58:29 -0300 -Subject: [PATCH] alsa: Set period_size depending on hardware - -Currently PipeWire is unable to reproduce audio in systems where DMA -granularity is not burst. - -In order to mitigate this issue, set period_size depending on hardware, -lowering it when snd_pcm_hw_params_is_batch == 1, to reduce DMA -transfers size. - -Signed-off-by: Walter Lozano <walter.lozano@collabora.com> ---- - spa/plugins/alsa/alsa-pcm.c | 4 ++++ - 1 file changed, 4 insertions(+) - -diff --git a/spa/plugins/alsa/alsa-pcm.c b/spa/plugins/alsa/alsa-pcm.c -index 63d75549..2d3850b7 100644 ---- a/spa/plugins/alsa/alsa-pcm.c -+++ b/spa/plugins/alsa/alsa-pcm.c -@@ -463,6 +463,10 @@ int spa_alsa_set_format(struct state *state, struct spa_audio_info *fmt, uint32_ - - dir = 0; - period_size = 1024; -+ if (snd_pcm_hw_params_is_batch(params)) { -+ period_size = 512; -+ spa_log_warn(state->log, NAME" hardware does double buffering, changing period_size to %ld", period_size); -+ } - CHECK(snd_pcm_hw_params_set_period_size_near(hndl, params, &period_size, &dir), "set_period_size_near"); - CHECK(snd_pcm_hw_params_get_buffer_size_max(params, &state->buffer_frames), "get_buffer_size_max"); - CHECK(snd_pcm_hw_params_set_buffer_size_near(hndl, params, &state->buffer_frames), "set_buffer_size_near"); --- -2.20.1 - |