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support write ts file

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This commit is contained in:
winlin 2013-11-25 23:54:01 +08:00
parent 164392f6aa
commit 7ed20cc670
5 changed files with 143 additions and 19 deletions
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30
trunk/research/ts_info.cc
View file

@ -585,6 +585,7 @@ public:
int64_t pts; // 33bits
int64_t dts; // 33bits
int64_t pcr;
// header size.
int packet_header_size;
@ -596,6 +597,10 @@ public:
int packet_data_size;
char* packet_data;
// for avc.
u_int8_t nal_ref_idc;
u_int8_t nal_unit_type;
TSMessage();
virtual ~TSMessage();
@ -709,12 +714,15 @@ TSMessage::TSMessage()
stream_type = TSStreamTypeReserved;
stream_id = 0;
packet_start_code_prefix = 0;
pts = dts = 0;
pts = dts = pcr = 0;
PES_packet_length = 0;
packet_header_size = 0;
parsed_packet_size = 0;
packet_data_size = 0;
packet_data = NULL;
nal_ref_idc = 0;
nal_unit_type = 0;
}
TSMessage::~TSMessage()
@ -1596,6 +1604,10 @@ int TSPayload::demux(TSContext* ctx, TSPacket* pkt, u_int8_t* start, u_int8_t* l
}
if (pid && (pid->type == TSPidTypeVideo || pid->type == TSPidTypeAudio)) {
TSMessage* msg = ctx->get_msg(pkt->header->pid);
if (pkt->adaption_field->pcr > 0) {
msg->pcr = pkt->adaption_field->pcr;
}
// flush previous PES_packet_length(0) packets.
if (msg->packet_start_code_prefix == 0x01
@ -2135,6 +2147,10 @@ int consume(TSMessage* msg, AacMuxer* aac_muxer)
int8_t nal_unit_type = *pp++;
int8_t nal_ref_idc = (nal_unit_type >> 5) & 0x03;
nal_unit_type &= 0x1f;
msg->nal_ref_idc = nal_ref_idc;
msg->nal_unit_type = nal_unit_type;
if (nal_ref_idc != 0) {
trace("ts+h264 got an SPS or PPS.");
}
@ -2235,6 +2251,18 @@ int main(int argc, char** argv)
return -1;
}
int64_t pts = msg->pts;
int64_t dts = (msg->dts == 0)? msg->pts : msg->dts;
int64_t pcr = msg->pcr;
static int64_t last_pcr_dts = 0;
trace("demuxer+report id=%d, type=%s, size=%d, dts=%d, pts=%d, cts=%d, pcr=%d, dts-pcr=%d, ref=%d, unit=%d, dts(diff-pcr)=%d",
ctx.ts_packet_count, (msg->type == TSPidTypeVideo)? "video":"audio",
msg->parsed_packet_size, dts, pts, pts - dts, pcr, pcr? dts - pcr : 0,
msg->nal_ref_idc, msg->nal_unit_type, pcr? dts - last_pcr_dts: 0);
if (pcr > 0) {
last_pcr_dts = dts;
}
srs_freep(msg);
}
}

77
trunk/src/core/srs_core_codec.cpp
View file

@ -115,6 +115,10 @@ SrsCodec::SrsCodec()
avc_extra_data = NULL;
aac_extra_size = 0;
aac_extra_data = NULL;
sequenceParameterSetLength = 0;
sequenceParameterSetNALUnit = NULL;
pictureParameterSetLength = 0;
pictureParameterSetNALUnit = NULL;
stream = new SrsStream();
}
@ -125,6 +129,8 @@ SrsCodec::~SrsCodec()
srs_freepa(aac_extra_data);
srs_freep(stream);
srs_freepa(sequenceParameterSetNALUnit);
srs_freepa(pictureParameterSetNALUnit);
}
int SrsCodec::audio_aac_demux(int8_t* data, int size, SrsCodecSample* sample)
@ -315,16 +321,67 @@ int SrsCodec::video_avc_demux(int8_t* data, int size, SrsCodecSample* sample)
int8_t lengthSizeMinusOne = stream->read_1bytes();
lengthSizeMinusOne &= 0x03;
NAL_unit_length = lengthSizeMinusOne;
/**
* skip the following:
* numOfSequenceParameterSets
* donot parse the following:
* sequenceParameterSetLength
* sequenceParameterSetNALUnit
* numOfPictureParameterSets
* pictureParameterSetLength
* pictureParameterSetNALUnit
*/
// 1 sps
if (!stream->require(1)) {
ret = ERROR_HLS_DECODE_ERROR;
srs_error("hls decode video avc sequenc header sps failed. ret=%d", ret);
return ret;
}
int8_t numOfSequenceParameterSets = stream->read_1bytes();
numOfSequenceParameterSets &= 0x1f;
if (numOfSequenceParameterSets != 1) {
ret = ERROR_HLS_DECODE_ERROR;
srs_error("hls decode video avc sequenc header sps failed. ret=%d", ret);
return ret;
}
if (!stream->require(2)) {
ret = ERROR_HLS_DECODE_ERROR;
srs_error("hls decode video avc sequenc header sps size failed. ret=%d", ret);
return ret;
}
sequenceParameterSetLength = stream->read_2bytes();
if (!stream->require(sequenceParameterSetLength)) {
ret = ERROR_HLS_DECODE_ERROR;
srs_error("hls decode video avc sequenc header sps data failed. ret=%d", ret);
return ret;
}
if (sequenceParameterSetLength > 0) {
srs_freepa(sequenceParameterSetNALUnit);
sequenceParameterSetNALUnit = new char[sequenceParameterSetLength];
memcpy(sequenceParameterSetNALUnit, stream->current(), sequenceParameterSetLength);
stream->skip(sequenceParameterSetLength);
}
// 1 pps
if (!stream->require(1)) {
ret = ERROR_HLS_DECODE_ERROR;
srs_error("hls decode video avc sequenc header pps failed. ret=%d", ret);
return ret;
}
int8_t numOfPictureParameterSets = stream->read_1bytes();
numOfPictureParameterSets &= 0x1f;
if (numOfPictureParameterSets != 1) {
ret = ERROR_HLS_DECODE_ERROR;
srs_error("hls decode video avc sequenc header pps failed. ret=%d", ret);
return ret;
}
if (!stream->require(2)) {
ret = ERROR_HLS_DECODE_ERROR;
srs_error("hls decode video avc sequenc header pps size failed. ret=%d", ret);
return ret;
}
pictureParameterSetLength = stream->read_2bytes();
if (!stream->require(pictureParameterSetLength)) {
ret = ERROR_HLS_DECODE_ERROR;
srs_error("hls decode video avc sequenc header pps data failed. ret=%d", ret);
return ret;
}
if (pictureParameterSetLength > 0) {
srs_freepa(pictureParameterSetNALUnit);
pictureParameterSetNALUnit = new char[pictureParameterSetLength];
memcpy(pictureParameterSetNALUnit, stream->current(), pictureParameterSetLength);
stream->skip(pictureParameterSetLength);
}
} else if (avc_packet_type == SrsCodecVideoAVCTypeNALU){
// ensure the sequence header demuxed
if (avc_extra_size <= 0 || !avc_extra_data) {

4
trunk/src/core/srs_core_codec.hpp
View file

@ -250,6 +250,10 @@ public:
int duration;
// lengthSizeMinusOne, H.264-AVC-ISO_IEC_14496-15.pdf, page 16
int8_t NAL_unit_length;
u_int16_t sequenceParameterSetLength;
char* sequenceParameterSetNALUnit;
u_int16_t pictureParameterSetLength;
char* pictureParameterSetNALUnit;
/**
* audio specified
*/

49
trunk/src/core/srs_core_hls.cpp
View file

@ -512,8 +512,13 @@ SrsTSMuxer::SrsTSMuxer()
{
fd = -1;
// ffmpeg set the start time to the delay time.
base_dts = SRS_HLS_DELAY;
audio_buffer = new SrsCodecBuffer();
video_buffer = new SrsCodecBuffer();
got_iframe = false;
}
SrsTSMuxer::~SrsTSMuxer()
@ -555,7 +560,7 @@ int SrsTSMuxer::write_audio(u_int32_t time, SrsCodec* codec, SrsCodecSample* sam
{
int ret = ERROR_SUCCESS;
audio_frame.dts = audio_frame.pts = time * 90;
audio_frame.dts = audio_frame.pts = base_dts + time * 90;
audio_frame.pid = TS_AUDIO_PID;
audio_frame.sid = TS_AUDIO_AAC;
@ -626,12 +631,19 @@ int SrsTSMuxer::write_video(u_int32_t time, SrsCodec* codec, SrsCodecSample* sam
{
int ret = ERROR_SUCCESS;
video_frame.dts = time * 90;
video_frame.dts = base_dts + time * 90;
video_frame.pts = video_frame.dts + sample->cts * 90;
video_frame.pid = TS_VIDEO_PID;
video_frame.sid = TS_VIDEO_AVC;
video_frame.key = sample->frame_type == SrsCodecVideoAVCFrameKeyFrame;
if (video_frame.key) {
got_iframe = true;
}
if (!got_iframe) {
return ret;
}
static u_int8_t aud_nal[] = { 0x00, 0x00, 0x00, 0x01, 0x09, 0xf0 };
video_buffer->append(aud_nal, sizeof(aud_nal));
@ -646,12 +658,33 @@ int SrsTSMuxer::write_video(u_int32_t time, SrsCodec* codec, SrsCodecSample* sam
return ret;
}
if (false && video_frame.key && !sps_pps_sent) {
// sample start prefix
video_buffer->append(aud_nal, 4);
// sps and pps
// TODO: do in right way.
video_buffer->append(codec->avc_extra_data, codec->avc_extra_size);
// 5bits, 7.3.1 NAL unit syntax,
// H.264-AVC-ISO_IEC_14496-10.pdf, page 44.
u_int8_t nal_unit_type;
nal_unit_type = *buf->bytes;
nal_unit_type &= 0x1f;
// Table 7-1 – NAL unit type codes, page 61
// 1: Coded slice
if (nal_unit_type == 1) {
sps_pps_sent = false;
}
// 5: Coded slice of an IDR picture
if (nal_unit_type == 5 && !sps_pps_sent) {
// ngx_rtmp_hls_append_sps_pps
if (codec->sequenceParameterSetLength > 0) {
// AnnexB prefix
video_buffer->append(aud_nal, 4);
// sps
video_buffer->append(codec->sequenceParameterSetNALUnit, codec->sequenceParameterSetLength);
}
if (codec->pictureParameterSetLength > 0) {
// AnnexB prefix
video_buffer->append(aud_nal, 4);
// pps
video_buffer->append(codec->pictureParameterSetNALUnit, codec->pictureParameterSetLength);
}
}
// sample start prefix, '00 00 00 01' or '00 00 01'

2
trunk/src/core/srs_core_hls.hpp
View file

@ -81,6 +81,8 @@ private:
int fd;
std::string path;
private:
bool got_iframe;
int64_t base_dts;
mpegts_frame audio_frame;
SrsCodecBuffer* audio_buffer;
mpegts_frame video_frame;