From f93ee1a42e8c47e472332287b7350b66a6b0fa11 Mon Sep 17 00:00:00 2001
From: zhangmeng <775834166@qq.com>
Date: 星期五, 24 七月 2020 18:28:57 +0800
Subject: [PATCH] 保存触发id之后的视频作为触发视频
---
csrc/ffmpeg/format/FormatOut.cpp | 244 +++++++++++++++++++++++++++---------------------
1 files changed, 139 insertions(+), 105 deletions(-)
diff --git a/csrc/ffmpeg/format/FormatOut.cpp b/csrc/ffmpeg/format/FormatOut.cpp
index bc77524..e832bfe 100644
--- a/csrc/ffmpeg/format/FormatOut.cpp
+++ b/csrc/ffmpeg/format/FormatOut.cpp
@@ -16,8 +16,6 @@
#include "../configure/conf.hpp"
#include "../property/VideoProp.hpp"
-#include "../data/CodedData.hpp"
-#include "../data/FrameData.hpp"
#include "../../common/gpu/info.h"
@@ -26,12 +24,15 @@
namespace ffwrapper{
FormatOut::FormatOut()
:ctx_(NULL)
- ,v_s_(NULL)
+ ,v_idx_(-1)
+ ,a_idx_(-1)
,enc_ctx_(NULL)
,sync_opts_(0)
,record_(false)
,fps_(0.0f)
,format_name_("mp4")
+ ,in_v_stream_(NULL)
+ ,in_a_stream_(NULL)
{}
FormatOut::~FormatOut()
@@ -50,7 +51,6 @@
avformat_free_context(ctx_);
ctx_ = NULL;
}
- v_s_ = NULL;
sync_opts_ = 0;
}
@@ -151,7 +151,8 @@
}
logIt("use encoder %s", codec->name);
- v_s_ = avformat_new_stream(ctx_, codec);
+ AVStream *v = avformat_new_stream(ctx_, codec);
+ v_idx_ = 0;
enc_ctx_ = avcodec_alloc_context3(codec);
@@ -181,7 +182,7 @@
logIt("can't open output codec: %s", getAVErrorDesc(err).c_str());
return false;
}
- err = avcodec_parameters_from_context(v_s_->codecpar, enc_ctx_);
+ err = avcodec_parameters_from_context(v->codecpar, enc_ctx_);
if (err < 0) {
logIt("can't avcodec_parameters_from_context: %s", getAVErrorDesc(err).c_str());
return false;
@@ -196,20 +197,25 @@
return true;
}
+
+ AVStream *FormatOut::getStream(){
+ if (v_idx_ == -1) return NULL;
+ return ctx_->streams[v_idx_];
+ }
const AVCodecContext *FormatOut::getCodecContext()const{
return enc_ctx_;
}
- int FormatOut::encode(AVPacket &pkt, AVFrame *frame){
+ int FormatOut::encode(AVPacket *pkt, AVFrame *frame){
AVStream *out = getStream();
frame->quality = enc_ctx_->global_quality;
frame->pict_type = AV_PICTURE_TYPE_NONE;
- pkt.data = NULL;
- pkt.size = 0;
+ pkt->data = NULL;
+ pkt->size = 0;
int ret = avcodec_send_frame(enc_ctx_, frame);
if(ret < 0){
@@ -218,89 +224,39 @@
}
while(ret >= 0){
- ret = avcodec_receive_packet(enc_ctx_, &pkt);
+ ret = avcodec_receive_packet(enc_ctx_, pkt);
if (ret == AVERROR(EAGAIN) || ret == AVERROR_EOF) {
break;
}else if (ret < 0) {
logIt("avcodec_receive_packet : %s", getAVErrorDesc(ret).c_str());
return -1;
}else{
- if(pkt.pts == AV_NOPTS_VALUE
+ if(pkt->pts == AV_NOPTS_VALUE
&& !(enc_ctx_->codec->capabilities & AV_CODEC_CAP_DELAY))
{
- pkt.pts = sync_opts_++;
+ pkt->pts = sync_opts_++;
}
- av_packet_rescale_ts(&pkt, enc_ctx_->time_base, out->time_base);
+ av_packet_rescale_ts(pkt, enc_ctx_->time_base, out->time_base);
// printf("pkt pts: %lld\n", pkt.pts);
- return 1;
+ return 0;
}
}
- return 0;
- }
-
- int FormatOut::encode(std::shared_ptr<CodedData> &data,
- std::shared_ptr<FrameData> &frame_data){
-
- AVStream *out = getStream();
- AVCodecContext *enc_ctx = out->codec;
- data->refExtraData(enc_ctx->extradata, enc_ctx->extradata_size);
-
- AVPacket &pkt(data->getAVPacket());
- AVFrame *frame = frame_data->getAVFrame();
-
- return encode(pkt, frame);
- }
-
- int FormatOut::encode(std::shared_ptr<CodedData> &data,AVFrame *frame){
-
- AVStream *out = getStream();
- AVCodecContext *enc_ctx = out->codec;
- data->refExtraData(enc_ctx->extradata, enc_ctx->extradata_size);
-
- AVPacket &pkt(data->getAVPacket());
-
- return encode(pkt, frame);
+ return -2;
}
//////////////////////////////////////////////////////////////////////////
- FormatOut::FormatOut(AVStream *in, const char *format_name)
+ FormatOut::FormatOut(const double fps, const char *format_name)
:FormatOut(){
format_name_ = format_name;
- if(in->r_frame_rate.num >=1 && in->r_frame_rate.den >= 1){
- fps_ = av_q2d(in->r_frame_rate);
- }else if(in->avg_frame_rate.num >=1 && in->avg_frame_rate.den >= 1){
- fps_ = av_q2d(in->avg_frame_rate);
- }
- }
-
-
- bool FormatOut::copyCodecFromIn(AVStream *in){
-
- v_s_ = avformat_new_stream(ctx_, in->codec->codec);
- if(!v_s_){
- return false;
- }
-
- int ret = avcodec_copy_context(v_s_->codec, in->codec);
- if (ret < 0){
- logIt("can't copy codec from in error:%s", getAVErrorDesc(ret).c_str());
-
- return false;
- }
-
- if (ctx_->oformat->flags & AVFMT_GLOBALHEADER)
- {
- v_s_->codec->flags |= AV_CODEC_FLAG_GLOBAL_HEADER;
- }
- return true;
+ fps_ = fps;
}
bool FormatOut::openResource(const char *filename, const int flags){
- if((ctx_->flags & AVFMT_NOFILE) != AVFMT_NOFILE){
+ if((ctx_->oformat->flags & AVFMT_NOFILE) != AVFMT_NOFILE){
const int err = avio_open2(&ctx_->pb, filename, flags, NULL, NULL);
if(err < 0)
@@ -320,20 +276,71 @@
}
return true;
}
- bool FormatOut::JustWriter(AVStream *in, const char *filename){
+
+ bool FormatOut::addStream(AVStream *s){
+ AVStream *in_stream = s;
+
+ AVStream *out_stream = avformat_new_stream(ctx_, in_stream->codec->codec);
+ if(!out_stream)
+ {
+ logIt("Failed allocating output stream.\n");
+ return false;
+ }
+ //灏嗚緭鍑烘祦鐨勭紪鐮佷俊鎭鍒跺埌杈撳叆娴�
+ auto ret = avcodec_parameters_copy(out_stream->codecpar, in_stream->codecpar);
+ if(ret<0)
+ {
+ logIt("Failed to copy context from input to output stream codec context\n");
+ return false;
+ }
+ out_stream->codecpar->codec_tag = 0;
+
+ if(ctx_->oformat->flags & AVFMT_GLOBALHEADER)
+ out_stream->codec->flags |= AV_CODEC_FLAG_GLOBAL_HEADER;
+
+ return true;
+ }
+
+ bool FormatOut::copyCodecFromIn(AVStream *v, AVStream *a){
+ if (v){
+ v_idx_ = 0;
+ in_v_stream_ = v;
+
+ if (!addStream(v)){
+ logIt("format out add video stream error");
+ return false;
+ }else{
+ logIt("copy video from instream");
+ }
+ }
+ if (a){
+ a_idx_ = 1;
+ in_a_stream_ = a;
+ if (!addStream(a)){
+ logIt("format out add audio stream error");
+ return false;
+ }else{
+ logIt("copy audio from instream");
+ }
+ }
+ return true;
+ }
+
+ bool FormatOut::JustWriter(AVStream *v, AVStream *a, const char *filename){
if(ctx_){
clear();
}
bool flag = open(NULL, format_name_.c_str());
- flag = copyCodecFromIn(in) && flag;
+ flag = copyCodecFromIn(v, a) && flag;
if(!flag){
logIt("FormatOut JustWriter error from in");
return false;
}
flag = openResource(filename, 2);
+
if(flag){
AVDictionary *avdic = NULL;
char option_key[]="movflags";
@@ -341,8 +348,8 @@
av_dict_set(&avdic,option_key,option_value,0);
flag = writeHeader(&avdic);
av_dict_free(&avdic);
-
}
+
return flag;
}
@@ -364,6 +371,7 @@
bool FormatOut::endWriter(){
auto flag = writeTrailer();
+ closeResource();
record_ = false;
return flag;
@@ -381,60 +389,86 @@
getAVErrorDesc(ret).c_str());
return false;
}
+
record_ = true;
return true;
}
- void FormatOut::adjustPTS(AVPacket &pkt, const int64_t &frame_cnt){
- int64_t time_stamp = frame_cnt;
-
- pkt.pos = -1;
- pkt.stream_index = 0;
+ void FormatOut::adjustPTS(AVPacket *pkt, const int64_t &frame_cnt){
+ AVStream *in_stream,*out_stream;
+ int out_idx = -1;
+ std::vector<AVStream*> in_streams{in_v_stream_, in_a_stream_};
+ for (auto i : in_streams){
+ if (i && (i->index == pkt->stream_index)){
+ if (i->codecpar->codec_type == AVMEDIA_TYPE_VIDEO){
+ out_idx = v_idx_;
+ in_stream = i;
+ break;
+ }else if (i->codecpar->codec_type == AVMEDIA_TYPE_AUDIO){
+ in_stream = i;
+ out_idx = a_idx_;
+ break;
+ }
+ }
+ }
+ if (out_idx == -1) return;
+ out_stream = ctx_->streams[out_idx];
+ pkt->stream_index = out_idx;
- //Write PTS
- AVRational time_base = getStream()->time_base;
+ int64_t time_stamp = frame_cnt;
+
+ if (out_idx == v_idx_){
- AVRational time_base_q = { 1, AV_TIME_BASE };
- //Duration between 2 frames (us)
- // int64_t calc_duration = (double)(AV_TIME_BASE)*(1 / fps_); //鍐呴儴鏃堕棿鎴�
- int64_t calc_duration = (int64_t)(AV_TIME_BASE / fps_); //鍐呴儴鏃堕棿鎴�
- //Parameters
- pkt.pts = av_rescale_q(time_stamp*calc_duration, time_base_q, time_base);
- pkt.dts = pkt.pts;
- pkt.duration = av_rescale_q(calc_duration, time_base_q, time_base); //(double)(calc_duration)*(double)(av_q2d(time_base_q)) / (double)(av_q2d(time_base));
-
- // if (pkt.duration < 0 || time_base.den != 90000){
- // logIt("CALCULATE DURATION : %lld, fame count : %lld, TIMEBASE: %d", calc_duration,time_stamp, time_base.den);
- // }
-
+ pkt->pos = -1;
+ AVRational time_base = ctx_->streams[out_idx]->time_base;
+
+ AVRational time_base_q = { 1, AV_TIME_BASE };
+ int64_t calc_duration = (int64_t)(AV_TIME_BASE / fps_); //鍐呴儴鏃堕棿鎴�
+ pkt->pts = av_rescale_q(time_stamp*calc_duration, time_base_q, time_base);
+ pkt->dts = pkt->pts;
+ pkt->duration = av_rescale_q(calc_duration, time_base_q, time_base);
+
+ }else if (out_idx == a_idx_){
+
+ pkt->duration = 1024;
+ pkt->pts = pkt->dts = pkt->duration * time_stamp;
+
+ }
+ // logIt("BEFORE in stream timebase %d:%d, out timebase %d:%d,
+ // pts: %lld, dts: %lld, duration: %lld",
+ // in_stream->time_base.num, in_stream->time_base.den,
+ // out_stream->time_base.num, out_stream->time_base.den,
+ // pkt->pts, pkt->dts, pkt->duration);
+
}
- bool FormatOut::writeFrame(AVPacket &pkt, const int64_t &frame_cnt,
+ bool FormatOut::writeFrame(AVPacket *pkt, const int64_t &frame_cnt,
bool interleaved/* = true*/){
adjustPTS(pkt, frame_cnt);
- return writeFrame2(pkt, interleaved);
+ auto ret = writeFrame2(pkt, interleaved);
+ if (!ret){
+ logIt("write to file failed, pkt.pts: %lld, dts: %lld, frame count: %d",
+ pkt->pts, pkt->dts, frame_cnt);
+ }
+ return ret;
}
- bool FormatOut::writeFrame2(AVPacket &pkt, bool interleaved){
+ bool FormatOut::writeFrame2(AVPacket *pkt, bool interleaved){
int ret = 0;
- if(interleaved)
- ret = av_interleaved_write_frame(ctx_, &pkt);
- else
- {
+ if(interleaved){
+ ret = av_interleaved_write_frame(ctx_, pkt);
+ }else{
// returns 1 if flushed and there is no more data to flush
- ret = av_write_frame(ctx_, &pkt);
+ ret = av_write_frame(ctx_, pkt);
}
- if(ret < 0)
- {
- logIt("write packet to file failed:%s",
- getAVErrorDesc(ret).c_str());
- return false;
+ if(ret < -22 || ret == 0){
+ return true;
}
- return true;
+ return false;
}
bool FormatOut::writeTrailer(){
--
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