uvgrtp-base/examples/deallocation_1.cc

35 lines
1.4 KiB
C++

#include <uvgrtp/lib.hh>
#define PAYLOAD_MAXLEN 100
int main(void)
{
/* See sending.cc for more details */
uvg_rtp::context ctx;
/* See sending.cc for more details */
uvg_rtp::session *sess = ctx.create_session("127.0.0.1");
/* Pass "RCE_SYSTEM_CALL_DISPATCHER" to flags to indicate that we want to spawn SCD for this media stream.
* SCD requires that we provide some deallocation mechanism, this example is about the smart pointer approach
*
* See sending.cc for more details about media stream initialization */
uvg_rtp::media_stream *hevc = sess->create_stream(8888, 8889, RTP_FORMAT_HEVC, RCE_SYSTEM_CALL_DISPATCHER);
for (int i = 0; i < 10; ++i) {
std::unique_ptr<uint8_t[]> buffer = std::unique_ptr<uint8_t[]>(new uint8_t[PAYLOAD_MAXLEN]);
/* This is very similiar to sending.cc but here we must use std::move to give the unique_ptr to uvgRTP
* We can no longer use buffer and must reallocate new memory chunk on the next iteration.
*
* The memory is deallocated automatically when system call dispatcher has finished processing the transaction */
if (hevc->push_frame(std::move(buffer), PAYLOAD_MAXLEN, RTP_NO_FLAGS) != RTP_OK)
fprintf(stderr, "Failed to send RTP frame!");
}
/* Session must be destroyed manually */
ctx.destroy_session(sess);
return 0;
}