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Add short explanation for the intra variable

This commit is contained in:
Aaro Altonen 2020-04-22 09:49:20 +03:00
parent 8409706749
commit d28ceba7bb
1 changed files with 14 additions and 1 deletions
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15
src/formats/hevc_recv_normal.cc
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@ -111,12 +111,25 @@ rtp_error_t __hevc_receiver(kvz_rtp::receiver *receiver)
int nread = 0;
frame_info_t finfo;
rtp_error_t ret = RTP_OK;
uint32_t intra = INVALID_TS;
kvz_rtp::socket socket = receiver->get_socket();
kvz_rtp::frame::rtp_frame *frame, *frames[0xffff + 1] = { 0 };
bool enable_idelay = !(receiver->get_conf().flags & RCE_HEVC_NO_INTRA_DELAY);
std::unordered_set<uint32_t> dropped;
/* Use "intra" to keep track of intra frames
*
* If kvzRTP is in the process of receiving fragments of an incomplete intra frame,
* "intra" shall be the timestamp value of that intra frame.
* This means that when we're receiving packets out of order and an inter frame is complete
* while "intra" contains value other than INVALID_TS, we drop the inter frame and wait for
* the intra frame to complete.
*
* If "intra" contains INVALID_TS and all packets of an inter frame have been received,
* the inter frame is returned to user. If intra contains a value other than INVALID_TS
* (meaning an intra frame is in progress) and a new intra frame is received, the old intra frame
* pointed to by "intra" and new intra frame shall take the place of active intra frame */
uint32_t intra = INVALID_TS;
fd_set read_fds;
struct timeval t_val;
FD_ZERO(&read_fds);