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Code Issues Releases Wiki Activity

refine h264 raw publish with fps

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winlin 2016-09-09 11:32:24 +08:00
parent 4fe1eca09c
commit 4c6c2c28b8
1 changed files with 18 additions and 13 deletions
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31
trunk/research/librtmp/srs_h264_raw_publish.c
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@ -82,20 +82,24 @@ int main(int argc, char** argv)
printf("SRS(ossrs) client librtmp library.\n"); printf("SRS(ossrs) client librtmp library.\n");
printf("version: %d.%d.%d\n", srs_version_major(), srs_version_minor(), srs_version_revision()); printf("version: %d.%d.%d\n", srs_version_major(), srs_version_minor(), srs_version_revision());
if (argc <= 2) { if (argc <= 3) {
printf("Usage: %s <h264_raw_file> <rtmp_publish_url>\n", argv[0]); printf("Usage: %s <h264_raw_file> <rtmp_publish_url> <fps>\n", argv[0]);
printf(" h264_raw_file: the h264 raw steam file.\n"); printf(" h264_raw_file: the h264 raw steam file.\n");
printf(" rtmp_publish_url: the rtmp publish url.\n"); printf(" rtmp_publish_url: the rtmp publish url.\n");
printf(" fps: the video average fps, for example, 25.\n");
printf("For example:\n"); printf("For example:\n");
printf(" %s ./720p.h264.raw rtmp://127.0.0.1:1935/live/livestream\n", argv[0]); printf(" %s ./720p.h264.raw rtmp://127.0.0.1:1935/live/livestream 25\n", argv[0]);
printf("Where the file: http://winlinvip.github.io/srs.release/3rdparty/720p.h264.raw\n"); printf("Where the file: http://winlinvip.github.io/srs.release/3rdparty/720p.h264.raw\n");
printf("See: https://github.com/ossrs/srs/issues/66\n"); printf(" See: https://github.com/ossrs/srs/issues/66\n");
exit(-1); exit(-1);
} }
const char* raw_file = argv[1]; const char* raw_file = argv[1];
const char* rtmp_url = argv[2]; const char* rtmp_url = argv[2];
srs_human_trace("raw_file=%s, rtmp_url=%s", raw_file, rtmp_url); // @remark, the dts and pts if read from device, for instance, the encode lib,
// so we assume the fps is 25, and each h264 frame is 1000ms/25fps=40ms/f.
double fps = atof(argv[3]);
srs_human_trace("raw_file=%s, rtmp_url=%s, fps=%.2f", raw_file, rtmp_url, fps);
// open file // open file
int raw_fd = open(raw_file, O_RDONLY); int raw_fd = open(raw_file, O_RDONLY);
@ -148,12 +152,9 @@ int main(int argc, char** argv)
int dts = 0; int dts = 0;
int pts = 0; int pts = 0;
// @remark, the dts and pts if read from device, for instance, the encode lib,
// so we assume the fps is 25, and each h264 frame is 1000ms/25fps=40ms/f.
int fps = 25;
// @remark, to decode the file. // @remark, to decode the file.
char* p = h264_raw; char* p = h264_raw;
for (;p < h264_raw + file_size;) { for (int count = 0; p < h264_raw + file_size; count++) {
// @remark, read a frame from file buffer. // @remark, read a frame from file buffer.
char* data = NULL; char* data = NULL;
int size = 0; int size = 0;
@ -178,15 +179,19 @@ int main(int argc, char** argv)
} }
} }
// 5bits, 7.3.1 NAL unit syntax, // 5bits, 7.3.1 NAL unit syntax,
// H.264-AVC-ISO_IEC_14496-10.pdf, page 44. // H.264-AVC-ISO_IEC_14496-10.pdf, page 44.
// 7: SPS, 8: PPS, 5: I Frame, 1: P Frame, 9: AUD
u_int8_t nut = (char)data[nb_start_code] & 0x1f; u_int8_t nut = (char)data[nb_start_code] & 0x1f;
srs_human_trace("sent packet: type=%s, time=%d, size=%d, fps=%d, b[%d]=%#x(%s)", srs_human_trace("sent packet: type=%s, time=%d, size=%d, fps=%.2f, b[%d]=%#x(%s)",
srs_human_flv_tag_type2string(SRS_RTMP_TYPE_VIDEO), dts, size, fps, nb_start_code, (char)data[nb_start_code], srs_human_flv_tag_type2string(SRS_RTMP_TYPE_VIDEO), dts, size, fps, nb_start_code, (char)data[nb_start_code],
(nut == 7? "SPS":(nut == 8? "PPS":(nut == 5? "I":(nut == 1? "P":"Unknown"))))); (nut == 7? "SPS":(nut == 8? "PPS":(nut == 5? "I":(nut == 1? "P":(nut == 9? "AUD":"Unknown"))))));
// @remark, when use encode device, it not need to sleep. // @remark, when use encode device, it not need to sleep.
usleep(1000 / fps * 1000); if (count == 10) {
usleep(1000 * 1000 * count / fps);
count = 0;
}
} }
srs_human_trace("h264 raw data completed"); srs_human_trace("h264 raw data completed");