int opengl_push_message(glc_message_header_t *hdr, void *message, size_t message_size)
{
ps_packet_t packet;
int ret = 0;
ps_buffer_t *to;
if (!lib.running)
return EAGAIN;
if (opengl.unscaled)
to = opengl.unscaled;
else
to = opengl.buffer;
if ((ret = ps_packet_init(&packet, to)))
goto finish;
if ((ret = ps_packet_open(&packet, PS_PACKET_WRITE)))
goto finish;
if ((ret = ps_packet_write(&packet, hdr, sizeof(glc_message_header_t))))
goto finish;
if ((ret = ps_packet_write(&packet, message, message_size)))
goto finish;
if ((ret = ps_packet_close(&packet)))
goto finish;
if ((ret = ps_packet_destroy(&packet)))
goto finish;
finish:
return ret;
}
int audio_capture_set_buffer(audio_capture_t audio_capture, ps_buffer_t *buffer)
{
if (audio_capture->target)
return EAGAIN;
audio_capture->target = buffer;
ps_packet_init(&audio_capture->packet, audio_capture->target);
return 0;
}
int alsa_hook_stream_init(alsa_hook_t alsa_hook,
struct alsa_hook_stream_s *stream)
{
int ret;
glc_message_header_t msg_hdr;
glc_audio_format_message_t fmt_msg;
if (unlikely(!stream->fmt))
return EINVAL;
/* we need proper id for the stream */
if (stream->id < 1)
glc_state_audio_new(alsa_hook->glc, &stream->id,
&stream->state_audio);
glc_log(alsa_hook->glc, GLC_INFO, "alsa_hook",
"%p: initializing stream %d", stream->pcm, stream->id);
/* init packet */
if (stream->initialized)
ps_packet_destroy(&stream->packet);
ps_packet_init(&stream->packet, alsa_hook->to);
/* prepare audio format message */
msg_hdr.type = GLC_MESSAGE_AUDIO_FORMAT;
fmt_msg.id = stream->id;
fmt_msg.flags = stream->flags;
fmt_msg.rate = stream->rate;
fmt_msg.channels = stream->channels;
fmt_msg.format = stream->format;
ps_packet_open(&stream->packet, PS_PACKET_WRITE);
ps_packet_write(&stream->packet, &msg_hdr,
sizeof(glc_message_header_t));
ps_packet_write(&stream->packet, &fmt_msg,
sizeof(glc_audio_format_message_t));
ps_packet_close(&stream->packet);
alsa_hook_stream_wait(stream);
ret = glc_simple_thread_create(alsa_hook->glc, &stream->thread,
alsa_hook_thread, stream);
stream->initialized = 1;
return ret;
}
int gl_capture_get_video_stream(gl_capture_t gl_capture,
struct gl_capture_video_stream_s **video,
Display *dpy, GLXDrawable drawable)
{
struct gl_capture_video_stream_s *fvideo;
pthread_rwlock_rdlock(&gl_capture->videolist_lock);
fvideo = gl_capture->video;
while (fvideo != NULL) {
if ((fvideo->drawable == drawable) && (fvideo->dpy == dpy))
break;
fvideo = fvideo->next;
}
pthread_rwlock_unlock(&gl_capture->videolist_lock);
if (fvideo == NULL) {
fvideo = (struct gl_capture_video_stream_s *)
calloc(1, sizeof(struct gl_capture_video_stream_s));
fvideo->dpy = dpy;
fvideo->drawable = drawable;
fvideo->gather_stats = glc_log_get_level(gl_capture->glc) >= GLC_PERF;
ps_packet_init(&fvideo->packet, gl_capture->to);
glc_state_video_new(gl_capture->glc, &fvideo->id, &fvideo->state_video);
/* these functions need to be thread-safe */
pthread_rwlock_wrlock(&gl_capture->videolist_lock);
fvideo->next = gl_capture->video;
gl_capture->video = fvideo;
pthread_rwlock_unlock(&gl_capture->videolist_lock);
}
*video = fvideo;
return 0;
}
int glc_util_write_end_of_stream(glc_t *glc, ps_buffer_t *to)
{
int ret = 0;
ps_packet_t packet;
glc_message_header_t header;
header.type = GLC_MESSAGE_CLOSE;
if (unlikely((ret = ps_packet_init(&packet, to))))
goto finish;
if (unlikely((ret = ps_packet_open(&packet, PS_PACKET_WRITE))))
goto finish;
if (unlikely((ret = ps_packet_write(&packet,
&header, sizeof(glc_message_header_t)))))
goto finish;
if (unlikely((ret = ps_packet_close(&packet))))
goto finish;
if (unlikely((ret = ps_packet_destroy(&packet))))
goto finish;
finish:
return ret;
}