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pacat: always fully fulfill write requests

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Make sure we always fulfill write requests from the server. If we don't
the server won't ask us again and playback will stay stuck.

https://tango.0pointer.de/pipermail/pulseaudio-discuss/2010-February/006611.html
This commit is contained in:
Lennart Poettering 2010-02-18 01:54:51 +01:00
parent b9bcc7c733
commit d57ba82414
1 changed files with 34 additions and 21 deletions
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55
src/utils/pacat.c
View file

@ -195,28 +195,41 @@ static void stream_write_callback(pa_stream *s, size_t length, void *userdata) {
pa_assert(sndfile);
if (pa_stream_begin_write(s, &data, &length) < 0) {
pa_log(_("pa_stream_begin_write() failed: %s"), pa_strerror(pa_context_errno(context)));
quit(1);
return;
for (;;) {
size_t data_length = length;
if (pa_stream_begin_write(s, &data, &data_length) < 0) {
pa_log(_("pa_stream_begin_write() failed: %s"), pa_strerror(pa_context_errno(context)));
quit(1);
return;
}
if (readf_function) {
size_t k = pa_frame_size(&sample_spec);
if ((bytes = readf_function(sndfile, data, (sf_count_t) (data_length/k))) > 0)
bytes *= (sf_count_t) k;
} else
bytes = sf_read_raw(sndfile, data, (sf_count_t) data_length);
if (bytes > 0)
pa_stream_write(s, data, (size_t) bytes, NULL, 0, PA_SEEK_RELATIVE);
else
pa_stream_cancel_write(s);
/* EOF? */
if (bytes < (sf_count_t) data_length) {
start_drain();
break;
}
/* Request fulfilled */
if ((size_t) bytes >= length)
break;
length -= bytes;
}
if (readf_function) {
size_t k = pa_frame_size(&sample_spec);
if ((bytes = readf_function(sndfile, data, (sf_count_t) (length/k))) > 0)
bytes *= (sf_count_t) k;
} else
bytes = sf_read_raw(sndfile, data, (sf_count_t) length);
if (bytes > 0)
pa_stream_write(s, data, (size_t) bytes, NULL, 0, PA_SEEK_RELATIVE);
else
pa_stream_cancel_write(s);
if (bytes < (sf_count_t) length)
start_drain();
}
}