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wasapisrc: Re-align device period if necessary

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Same changes as done for wasapisink in cbe2fc40a. Turns out this is
sometimes also needed for capture. Reported by Mathieu_Du.

Also improve logging in that case for easier debugging.
This commit is contained in:
Nirbheek Chauhan 2018-02-09 02:05:23 +05:30
parent 34276dc373
commit 8f61785485
2 changed files with 32 additions and 4 deletions
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4
sys/wasapi/gstwasapisink.c
View file

@ -480,8 +480,8 @@ gst_wasapi_sink_prepare (GstAudioSink * asink, GstAudioRingBufferSpec * spec)
device_period = (GST_SECOND / 100) * n_frames / rate;
GST_WARNING_OBJECT (self, "trying to re-initialize with period %i",
(int) device_period);
GST_WARNING_OBJECT (self, "trying to re-initialize with period %i "
"(%i frames, %i rate)", (int) device_period, n_frames, rate);
hr = IAudioClient_Initialize (self->client, self->sharemode,
AUDCLNT_STREAMFLAGS_EVENTCALLBACK, device_period,

32
sys/wasapi/gstwasapisrc.c
View file

@ -394,6 +394,9 @@ gst_wasapi_src_prepare (GstAudioSrc * asrc, GstAudioRingBufferSpec * spec)
GST_INFO_OBJECT (self, "wasapi default period: %" G_GINT64_FORMAT
", min period: %" G_GINT64_FORMAT, default_period, min_period);
bpf = GST_AUDIO_INFO_BPF (&spec->info);
rate = GST_AUDIO_INFO_RATE (&spec->info);
if (self->low_latency) {
if (self->sharemode == AUDCLNT_SHAREMODE_SHARED) {
device_period = default_period;
@ -418,6 +421,33 @@ gst_wasapi_src_prepare (GstAudioSrc * asrc, GstAudioRingBufferSpec * spec)
/* This must always be 0 in shared mode */
self->sharemode == AUDCLNT_SHAREMODE_SHARED ? 0 : device_period,
self->mix_format, NULL);
if (hr == AUDCLNT_E_BUFFER_SIZE_NOT_ALIGNED &&
self->sharemode == AUDCLNT_SHAREMODE_EXCLUSIVE) {
guint32 n_frames;
GST_WARNING_OBJECT (self, "initialize failed due to unaligned period %i",
(int) device_period);
/* Calculate a new aligned period. First get the aligned buffer size. */
hr = IAudioClient_GetBufferSize (self->client, &n_frames);
if (hr != S_OK) {
gchar *msg = gst_wasapi_util_hresult_to_string (hr);
GST_ELEMENT_ERROR (self, RESOURCE, OPEN_WRITE, (NULL),
("IAudioClient::GetBufferSize() failed: %s", msg));
g_free (msg);
goto beach;
}
device_period = (GST_SECOND / 100) * n_frames / rate;
GST_WARNING_OBJECT (self, "trying to re-initialize with period %i "
"(%i frames, %i rate)", (int) device_period, n_frames, rate);
hr = IAudioClient_Initialize (self->client, self->sharemode,
AUDCLNT_STREAMFLAGS_EVENTCALLBACK, device_period,
device_period, self->mix_format, NULL);
}
if (hr != S_OK) {
gchar *msg = gst_wasapi_util_hresult_to_string (hr);
GST_ELEMENT_ERROR (self, RESOURCE, OPEN_READ, (NULL),
@ -433,8 +463,6 @@ gst_wasapi_src_prepare (GstAudioSrc * asrc, GstAudioRingBufferSpec * spec)
goto beach;
}
bpf = GST_AUDIO_INFO_BPF (&spec->info);
rate = GST_AUDIO_INFO_RATE (&spec->info);
GST_INFO_OBJECT (self, "buffer size is %i frames, bpf is %i bytes, "
"rate is %i Hz", buffer_frames, bpf, rate);