From 762251329bca80422a8e65d0cdb36e86e84883cf Mon Sep 17 00:00:00 2001
From: zhangmeng <775834166@qq.com>
Date: 星期五, 27 九月 2019 11:11:45 +0800
Subject: [PATCH] bug fix
---
csrc/ffmpeg/format/FormatOut.cpp | 134 ++++++++++++++++++++++++++++++--------------
1 files changed, 92 insertions(+), 42 deletions(-)
diff --git a/csrc/ffmpeg/format/FormatOut.cpp b/csrc/ffmpeg/format/FormatOut.cpp
index dce3f7e..a0cad4a 100644
--- a/csrc/ffmpeg/format/FormatOut.cpp
+++ b/csrc/ffmpeg/format/FormatOut.cpp
@@ -31,6 +31,8 @@
,record_(false)
,fps_(0.0f)
,format_name_("mp4")
+ ,in_v_stream_(NULL)
+ ,in_a_stream_(NULL)
{}
FormatOut::~FormatOut()
@@ -275,52 +277,63 @@
return true;
}
- bool FormatOut::copyCodecFromIn(AVFormatContext* in){
-
- for(int i = 0; i < in->nb_streams; i++)
- { //鏍规嵁杈撳叆娴佸垱寤鸿緭鍑烘祦
- AVStream *in_stream = in->streams[i];
- 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_copy_context(out_stream->codec, in_stream->codec);
- if(ret<0)
- {
- logIt("Failed to copy context from input to output stream codec context\n");
- return false;
- }
-
- if (in_stream->codecpar->codec_type == AVMEDIA_TYPE_VIDEO){
- v_idx_ = i;
- }else{
- a_idx_ = i;
- }
-
- out_stream->codecpar->codec_tag = out_stream->codec->codec_tag = 0;
-
- if(ctx_->oformat->flags & AVFMT_GLOBALHEADER)
- out_stream->codec->flags |= AV_CODEC_FLAG_GLOBAL_HEADER;
-
+ 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;
}
-
- in_ctx_ = in;
-
+ //灏嗚緭鍑烘祦鐨勭紪鐮佷俊鎭鍒跺埌杈撳叆娴�
+ auto ret = avcodec_copy_context(out_stream->codec, in_stream->codec);
+ if(ret<0)
+ {
+ logIt("Failed to copy context from input to output stream codec context\n");
+ return false;
+ }
+ out_stream->codecpar->codec_tag = out_stream->codec->codec_tag = 0;
+
+ if(ctx_->oformat->flags & AVFMT_GLOBALHEADER)
+ out_stream->codec->flags |= AV_CODEC_FLAG_GLOBAL_HEADER;
+
return true;
}
- bool FormatOut::JustWriter(AVFormatContext *in, const char *filename){
+ 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;
@@ -335,7 +348,6 @@
av_dict_set(&avdic,option_key,option_value,0);
flag = writeHeader(&avdic);
av_dict_free(&avdic);
-
}
return flag;
@@ -387,14 +399,52 @@
logIt("adjustPTS pkt stream index too much");
return;
}
+
+ if (!in_a_stream_){
+ int64_t time_stamp = frame_cnt;
+
+ pkt->pos = -1;
+ pkt->stream_index = 0;
+ //Write PTS
+ AVRational time_base = getStream()->time_base;
+
+ 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);
+ return;
+ }
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->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;
- in_stream = in_ctx_->streams[pkt->stream_index];
- out_stream = ctx_->streams[pkt->stream_index];
-
- // logIt("BEFORE stream %d, pts: %lld, dts: %lld, duration: %lld",
- // pkt->stream_index, pkt->pts, pkt->dts, pkt->duration);
+ // 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);
//杞崲 PTS/DTS 鏃跺簭
pkt->pts = av_rescale_q_rnd(pkt->pts,in_stream->time_base,out_stream->time_base,(enum AVRounding)(AV_ROUND_NEAR_INF|AV_ROUND_PASS_MINMAX));
--
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