c8285c8d
 Hu Chunming
GB28181 UDP 有重大进展...
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extern "C" {
#include <libavformat/rtpdec.h>
#include <libavcodec/avcodec.h>
}
#define RTP_PAYLOAD_TYPE 96
#define RTP_CLOCK_RATE 90000
#define BIT_RATE 1000000
#define VIDEO_WIDTH 1280
#define VIDEO_HEIGHT 720
AVCodecContext *codec_ctx = NULL;
AVPacket rtp_packet;
uint8_t *rtp_payload = NULL;
int rtp_payload_size = 0;
int rtp_ret;
int main(int argc, char *argv[])
{
uint8_t buffer[1500];
uint32_t timestamp;
int len, marker;
av_register_all();
avcodec_register_all();
av_register_rtp_dynamic_payload_handlers();
AVRtpPayloadTypes *payload_types = av_malloc(sizeof(AVRtpPayloadTypes));
if (!payload_types) {
return -1;
}
RTPDynamicProtocolHandler dynamic_handler = { 0 };
payload_types->pt = RTP_PAYLOAD_TYPE;
payload_types->next = NULL;
payload_types->handler = &dynamic_handler;
codec_ctx = avcodec_alloc_context3(NULL);
if (!codec_ctx) {
av_freep(&payload_types);
return -1;
}
codec_ctx->codec_type = AVMEDIA_TYPE_VIDEO;
codec_ctx->codec_id = AV_CODEC_ID_H264;
codec_ctx->pkt_timebase = (AVRational) { 1, RTP_CLOCK_RATE };
codec_ctx->time_base = codec_ctx->pkt_timebase;
codec_ctx->bit_rate = BIT_RATE;
codec_ctx->width = VIDEO_WIDTH;
codec_ctx->height = VIDEO_HEIGHT;
codec_ctx->pix_fmt = AV_PIX_FMT_YUV420P;
codec_ctx->flags |= AV_CODEC_FLAG_TRUNCATED | AV_CODEC_FLAG_GLOBAL_HEADER;
while (1) {
len = read_rtp_packet(buffer, sizeof(buffer), timestamp, &marker);
if (len < 0)
break;
rtp_payload_size = len - 2;
rtp_payload = (uint8_t *)buffer + 2;
memset(&rtp_packet, 0, sizeof(AVPacket));
av_init_packet(&rtp_packet);
rtp_ret = av_rtp_parse_packet(codec_ctx, payload_types, &rtp_payload, &rtp_payload_size, timestamp, marker);
if (rtp_ret >= 0) {
rtp_packet.data = rtp_payload;
rtp_packet.size = rtp_payload_size;
rtp_packet.pts = timestamp;
rtp_packet.dts = timestamp;
rtp_packet.duration = 0;
rtp_packet.stream_index = 0;
rtp_packet.flags |= AV_PKT_FLAG_KEY;
// �������rtp_packet�����
}
}
avcodec_free_context(&codec_ctx);
av_freep(&payload_types);
return 0;
}
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