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authorSai Pavan Boddu <sai.pavan.boddu@xilinx.com>2019-11-15 21:26:48 +0530
committerGerd Hoffmann <kraxel@redhat.com>2019-11-21 07:12:28 +0100
commit0f6ed883e74f3fd9eb3eedfe0e61be66e4834fc9 (patch)
tree63f6f26dff2643b2f31a3759d1d4f20943262737
parent7ffc90f3ae3d84562a4bda63cde961000b335542 (diff)
display: xlnx_dp: Provide sufficient bytes for silent audio channel
Fill the audio channel with required number of bytes to cover the elapsed time. This prevents rate control reset, and avoids debug prints like below log: Resetting rate control (65692 samples) ... Resetting rate control (65721 samples) ... Signed-off-by: Sai Pavan Boddu <sai.pavan.boddu@xilinx.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 1573833408-2388-1-git-send-email-sai.pavan.boddu@xilinx.com Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
-rw-r--r--hw/display/xlnx_dp.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/hw/display/xlnx_dp.c b/hw/display/xlnx_dp.c
index fde3b21ea5..7058443797 100644
--- a/hw/display/xlnx_dp.c
+++ b/hw/display/xlnx_dp.c
@@ -394,13 +394,18 @@ static void xlnx_dp_audio_callback(void *opaque, int avail)
written = AUD_write(s->amixer_output_stream,
&s->out_buffer[s->data_ptr], s->byte_left);
} else {
+ int len_to_copy;
/*
* There is nothing to play.. We don't have any data! Fill the
* buffer with zero's and send it.
*/
written = 0;
- memset(s->out_buffer, 0, 1024);
- AUD_write(s->amixer_output_stream, s->out_buffer, 1024);
+ while (avail) {
+ len_to_copy = MIN(AUD_CHBUF_MAX_DEPTH, avail);
+ memset(s->out_buffer, 0, len_to_copy);
+ avail -= AUD_write(s->amixer_output_stream, s->out_buffer,
+ len_to_copy);
+ }
}
} else {
written = AUD_write(s->amixer_output_stream,