@@ -135,6 +135,7 @@ static void *line_out_get_buffer(HWVoiceOut *hw, size_t *size)
(out->fsize - out->fpos) * hw->info.bytes_per_frame);
} else {
audio_rate_start(&out->rate);
+ *size = LINE_OUT_SAMPLES << 2;
}
return out->frame + out->fpos;
}
@@ -143,12 +144,14 @@ static size_t line_out_put_buffer(HWVoiceOut *hw, void *buf, size_t size)
{
SpiceVoiceOut *out = container_of(hw, SpiceVoiceOut, hw);
- assert(buf == out->frame + out->fpos && out->fpos <= out->fsize);
- out->fpos += size >> 2;
+ if (buf) {
+ assert(buf == out->frame + out->fpos && out->fpos <= out->fsize);
+ out->fpos += size >> 2;
- if (out->fpos == out->fsize) { /* buffer full */
- spice_server_playback_put_samples(&out->sin, out->frame);
- out->frame = NULL;
+ if (out->fpos == out->fsize) { /* buffer full */
+ spice_server_playback_put_samples(&out->sin, out->frame);
+ out->frame = NULL;
+ }
}
return size;
With the next patch all audio backends put_buffer_out() functions have to handle the buf == NULL case, provided the get_buffer_out() function may return buf = NULL and size > 0. It turns out that all audio backends get_buffer_out() functions either can't return buf = NULL or return buf = NULL and size = 0 at the same time. The only exception is the spiceaudio backend where size may be uninitialized. Signed-off-by: Volker Rümelin <vr_qemu@t-online.de> --- audio/spiceaudio.c | 13 ++++++++----- 1 file changed, 8 insertions(+), 5 deletions(-)