/* This is called whenever new data may is available */
static void stream_read_callback(pa_stream *s, size_t length, void *userdata) {
pa_assert(s);
pa_assert(length > 0);
if (raw) {
pa_assert(!sndfile);
if (stdio_event)
mainloop_api->io_enable(stdio_event, PA_IO_EVENT_OUTPUT);
while (pa_stream_readable_size(s) > 0) {
const void *data;
if (pa_stream_peek(s, &data, &length) < 0) {
pa_log(_("pa_stream_peek() failed: %s"), pa_strerror(pa_context_errno(context)));
quit(1);
return;
}
pa_assert(data);
pa_assert(length > 0);
if (buffer) {
buffer = pa_xrealloc(buffer, buffer_length + length);
memcpy((uint8_t*) buffer + buffer_length, data, length);
buffer_length += length;
} else {
buffer = pa_xmalloc(length);
memcpy(buffer, data, length);
buffer_length = length;
buffer_index = 0;
}
pa_stream_drop(s);
}
} else {
pa_assert(sndfile);
while (pa_stream_readable_size(s) > 0) {
sf_count_t bytes;
const void *data;
if (pa_stream_peek(s, &data, &length) < 0) {
pa_log(_("pa_stream_peek() failed: %s"), pa_strerror(pa_context_errno(context)));
quit(1);
return;
}
pa_assert(data);
pa_assert(length > 0);
if (writef_function) {
size_t k = pa_frame_size(&sample_spec);
if ((bytes = writef_function(sndfile, data, (sf_count_t) (length/k))) > 0)
bytes *= (sf_count_t) k;
} else
bytes = sf_write_raw(sndfile, data, (sf_count_t) length);
if (bytes < (sf_count_t) length)
quit(1);
pa_stream_drop(s);
}
}
}
/* This is called whenever new data may is available */
static void stream_read_callback(pa_stream *s, size_t length, void *userdata) {
pa_assert(s);
pa_assert(length > 0);
if (raw) {
pa_assert(!sndfile);
if (stdio_event)
mainloop_api->io_enable(stdio_event, PA_IO_EVENT_OUTPUT);
while (pa_stream_readable_size(s) > 0) {
const void *data;
if (pa_stream_peek(s, &data, &length) < 0) {
pa_log(_("pa_stream_peek() failed: %s"), pa_strerror(pa_context_errno(context)));
quit(1);
return;
}
pa_assert(length > 0);
/* If there is a hole in the stream, we generate silence, except
* if it's a passthrough stream in which case we skip the hole. */
if (data || !(flags & PA_STREAM_PASSTHROUGH)) {
buffer = pa_xrealloc(buffer, buffer_length + length);
if (data)
memcpy((uint8_t *) buffer + buffer_length, data, length);
else
pa_silence_memory((uint8_t *) buffer + buffer_length, length, &sample_spec);
buffer_length += length;
}
pa_stream_drop(s);
}
} else {
pa_assert(sndfile);
while (pa_stream_readable_size(s) > 0) {
sf_count_t bytes;
const void *data;
if (pa_stream_peek(s, &data, &length) < 0) {
pa_log(_("pa_stream_peek() failed: %s"), pa_strerror(pa_context_errno(context)));
quit(1);
return;
}
pa_assert(length > 0);
if (!data && (flags & PA_STREAM_PASSTHROUGH)) {
pa_stream_drop(s);
continue;
}
if (!data && length > silence_buffer_length) {
silence_buffer = pa_xrealloc(silence_buffer, length);
pa_silence_memory((uint8_t *) silence_buffer + silence_buffer_length, length - silence_buffer_length, &sample_spec);
silence_buffer_length = length;
}
if (writef_function) {
size_t k = pa_frame_size(&sample_spec);
if ((bytes = writef_function(sndfile, data ? data : silence_buffer, (sf_count_t) (length/k))) > 0)
bytes *= (sf_count_t) k;
} else
bytes = sf_write_raw(sndfile, data ? data : silence_buffer, (sf_count_t) length);
if (bytes < (sf_count_t) length)
quit(1);
pa_stream_drop(s);
}
}
}
