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H264 rtsp sdp生成正确的packetization-mode (#2691)

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夏楚 2023-07-22 17:30:39 +08:00 committed by GitHub
parent 25d5e410c3
commit 09aa38334e
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2 changed files with 18 additions and 4 deletions
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12
src/Extension/H264.cpp
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@ -12,9 +12,10 @@
#include "SPSParser.h"
#include "Util/logger.h"
#include "Util/base64.h"
#include "Common/config.h"
using namespace toolkit;
using namespace std;
using namespace toolkit;
namespace mediakit {
@ -248,7 +249,14 @@ public:
_printer << "b=AS:" << bitrate << "\r\n";
}
_printer << "a=rtpmap:" << payload_type << " " << getCodecName() << "/" << 90000 << "\r\n";
_printer << "a=fmtp:" << payload_type << " packetization-mode=1; profile-level-id=";
/**
Single NAI Unit Mode = 0. // Single NAI mode (Only nals from 1-23 are allowed)
Non Interleaved Mode = 1，// Non-interleaved Mode: 1-23，24 (STAP-A)，28 (FU-A) are allowed
Interleaved Mode = 2, // 25 (STAP-B)，26 (MTAP16)，27 (MTAP24)，28 (EU-A)，and 29 (EU-B) are allowed.
**/
GET_CONFIG(bool, h264_stap_a, Rtp::kH264StapA);
_printer << "a=fmtp:" << payload_type << " packetization-mode=" << h264_stap_a << "; profile-level-id=";
uint32_t profile_level_id = 0;
if (strSPS.length() >= 4) { // sanity check

10
webrtc/Sdp.cpp
View File

@ -1816,11 +1816,17 @@ bool RtcConfigure::onCheckCodecProfile(const RtcCodecPlan &plan, CodecId codec)
return true;
}
/**
Single NAI Unit Mode = 0. // Single NAI mode (Only nals from 1-23 are allowed)
Non Interleaved Mode = 1，// Non-interleaved Mode: 1-23，24 (STAP-A)，28 (FU-A) are allowed
Interleaved Mode = 2, // 25 (STAP-B)，26 (MTAP16)，27 (MTAP24)，28 (EU-A)，and 29 (EU-B) are allowed.
**/
void RtcConfigure::onSelectPlan(RtcCodecPlan &plan, CodecId codec) const {
if (_rtsp_video_plan && codec == CodecH264 && getCodecId(_rtsp_video_plan->codec) == CodecH264) {
//h264时，设置packetization-mod为一致
// h264时，设置packetization-mod为一致
auto mode = _rtsp_video_plan->fmtp[kMode];
plan.fmtp[kMode] = mode.empty() ? "0" : mode;
GET_CONFIG(bool, h264_stap_a, Rtp::kH264StapA);
plan.fmtp[kMode] = mode.empty() ? std::to_string(h264_stap_a) : mode;
}
}