int ac_queue_message(void *acp, struct RTPMessage *msg)
{
if (!acp || !msg) {
return -1;
}
ACSession *ac = (ACSession *)acp;
if ((msg->header.pt & 0x7f) == (rtp_TypeAudio + 2) % 128) {
LOGGER_WARNING(ac->log, "Got dummy!");
free(msg);
return 0;
}
if ((msg->header.pt & 0x7f) != rtp_TypeAudio % 128) {
LOGGER_WARNING(ac->log, "Invalid payload type!");
free(msg);
return -1;
}
pthread_mutex_lock(ac->queue_mutex);
int rc = jbuf_write(ac->log, (struct JitterBuffer *)ac->j_buf, msg);
pthread_mutex_unlock(ac->queue_mutex);
if (rc == -1) {
LOGGER_WARNING(ac->log, "Could not queue the message!");
free(msg);
return -1;
}
return 0;
}
/* Called from RTP */
void queue_message(RTPSession *session, RTPMessage *msg)
{
/* This function is unregistered during call termination befor destroing
* Codec session so no need to check for validity of cs
*/
CSSession *cs = session->cs;
if (!cs) return;
/* Audio */
if (session->payload_type == msi_TypeAudio % 128) {
pthread_mutex_lock(cs->queue_mutex);
int ret = jbuf_write(cs->j_buf, msg);
pthread_mutex_unlock(cs->queue_mutex);
if (ret == -1) {
rtp_free_msg(NULL, msg);
}
}
/* Video */
else {
uint8_t *packet = msg->data;
uint32_t packet_size = msg->length;
if (packet_size < VIDEOFRAME_HEADER_SIZE)
goto end;
uint8_t diff = packet[0] - cs->frameid_in;
if (diff != 0) {
if (diff < 225) { /* New frame */
/* Flush last frames' data and get ready for this frame */
Payload *p = malloc(sizeof(Payload) + cs->frame_size);
if (p) {
pthread_mutex_lock(cs->queue_mutex);
if (buffer_full(cs->vbuf_raw)) {
LOGGER_DEBUG("Dropped video frame");
Payload *tp;
buffer_read(cs->vbuf_raw, &tp);
free(tp);
} else {
p->size = cs->frame_size;
memcpy(p->data, cs->frame_buf, cs->frame_size);
}
buffer_write(cs->vbuf_raw, p);
pthread_mutex_unlock(cs->queue_mutex);
} else {
LOGGER_WARNING("Allocation failed! Program might misbehave!");
goto end;
}
cs->last_timestamp = msg->header->timestamp;
cs->frameid_in = packet[0];
memset(cs->frame_buf, 0, cs->frame_size);
cs->frame_size = 0;
} else { /* Old frame; drop */
LOGGER_DEBUG("Old packet: %u", packet[0]);
goto end;
}
}
uint8_t piece_number = packet[1];
uint32_t length_before_piece = ((piece_number - 1) * cs->video_frame_piece_size);
uint32_t framebuf_new_length = length_before_piece + (packet_size - VIDEOFRAME_HEADER_SIZE);
if (framebuf_new_length > cs->max_video_frame_size) {
goto end;
}
/* Otherwise it's part of the frame so just process */
/* LOGGER_DEBUG("Video Packet: %u %u", packet[0], packet[1]); */
memcpy(cs->frame_buf + length_before_piece,
packet + VIDEOFRAME_HEADER_SIZE,
packet_size - VIDEOFRAME_HEADER_SIZE);
if (framebuf_new_length > cs->frame_size) {
cs->frame_size = framebuf_new_length;
}
end:
rtp_free_msg(NULL, msg);
}
}