mirror of
https://github.com/f4exb/sdrangel.git
synced 2024-12-25 20:22:10 -05:00
631 lines
15 KiB
C++
631 lines
15 KiB
C++
///////////////////////////////////////////////////////////////////////////////////
|
|
// Copyright (C) 2018 F4HKW //
|
|
// for F4EXB / SDRAngel //
|
|
// //
|
|
// This program is free software; you can redistribute it and/or modify //
|
|
// it under the terms of the GNU General Public License as published by //
|
|
// the Free Software Foundation as version 3 of the License, or //
|
|
// //
|
|
// This program is distributed in the hope that it will be useful, //
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of //
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
|
|
// GNU General Public License V3 for more details. //
|
|
// //
|
|
// You should have received a copy of the GNU General Public License //
|
|
// along with this program. If not, see <http://www.gnu.org/licenses/>. //
|
|
///////////////////////////////////////////////////////////////////////////////////
|
|
|
|
#include "datvideorender.h"
|
|
|
|
DATVideoRender::DATVideoRender(QWidget * parent):
|
|
TVScreen(true, parent)
|
|
{
|
|
installEventFilter(this);
|
|
m_blnIsFullScreen=false;
|
|
m_blnRunning=false;
|
|
|
|
m_blnIsFFMPEGInitialized=false;
|
|
m_blnIsOpen=false;
|
|
m_objFormatCtx=NULL;
|
|
m_objDecoderCtx=NULL;
|
|
m_objSwsCtx=NULL;
|
|
m_intVideoStreamIndex=-1;
|
|
|
|
m_intCurrentRenderWidth=-1;
|
|
m_intCurrentRenderHeight=-1;
|
|
|
|
m_objFrame=NULL;
|
|
m_intFrameCount=-1;
|
|
}
|
|
|
|
bool DATVideoRender::eventFilter(QObject *obj, QEvent *event)
|
|
{
|
|
if (event->type() == QEvent::MouseButtonRelease)
|
|
{
|
|
SetFullScreen(false);
|
|
return true;
|
|
}
|
|
else
|
|
{
|
|
// standard event processing
|
|
return QObject::eventFilter(obj, event);
|
|
}
|
|
}
|
|
|
|
|
|
void DATVideoRender::SetFullScreen(bool blnFullScreen)
|
|
{
|
|
if(m_blnIsFullScreen==blnFullScreen)
|
|
{
|
|
return;
|
|
}
|
|
|
|
if(blnFullScreen==true)
|
|
{
|
|
setWindowFlags(Qt::Window);
|
|
setWindowState(Qt::WindowFullScreen);
|
|
show();
|
|
|
|
m_blnIsFullScreen=true;
|
|
}
|
|
else
|
|
{
|
|
setWindowFlags(Qt::Widget);
|
|
setWindowState(Qt::WindowNoState);
|
|
show();
|
|
|
|
m_blnIsFullScreen=false;
|
|
}
|
|
}
|
|
|
|
|
|
static int ReadFunction(void *opaque, uint8_t *buf, int buf_size)
|
|
{
|
|
QIODevice* objStream = reinterpret_cast<QIODevice*>(opaque);
|
|
int intNbBytes = objStream->read((char*)buf, buf_size);
|
|
return intNbBytes;
|
|
}
|
|
|
|
static int64_t SeekFunction(void* opaque, int64_t offset, int whence)
|
|
{
|
|
QIODevice* objStream = reinterpret_cast<QIODevice*>(opaque);
|
|
|
|
if (whence == AVSEEK_SIZE)
|
|
{
|
|
return -1;
|
|
}
|
|
|
|
if (objStream->isSequential())
|
|
{
|
|
return -1;
|
|
}
|
|
|
|
if (objStream->seek(offset)==false)
|
|
{
|
|
return -1;
|
|
}
|
|
|
|
return objStream->pos();
|
|
}
|
|
|
|
void DATVideoRender::ResetMetaData()
|
|
{
|
|
MetaData.CodecID=-1;
|
|
MetaData.PID=-1;
|
|
MetaData.Program="";
|
|
MetaData.Stream="";
|
|
MetaData.Width=-1;
|
|
MetaData.Height=-1;
|
|
MetaData.BitRate=-1;
|
|
MetaData.Channels=-1;
|
|
MetaData.CodecDescription= "";
|
|
|
|
MetaData.OK_Decoding=false;
|
|
MetaData.OK_TransportStream=false;
|
|
MetaData.OK_VideoStream=false;
|
|
|
|
emit onMetaDataChanged(&MetaData);
|
|
}
|
|
|
|
bool DATVideoRender::InitializeFFMPEG()
|
|
{
|
|
ResetMetaData();
|
|
|
|
if(m_blnIsFFMPEGInitialized)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
avcodec_register_all();
|
|
av_register_all();
|
|
|
|
av_log_set_level(AV_LOG_FATAL);
|
|
//av_log_set_level(AV_LOG_ERROR);
|
|
|
|
m_blnIsFFMPEGInitialized=true;
|
|
|
|
return true;
|
|
}
|
|
|
|
bool DATVideoRender::PreprocessStream()
|
|
{
|
|
AVDictionary *objOpts = NULL;
|
|
AVCodec *objCodec = NULL;
|
|
|
|
int intRet=-1;
|
|
char *objBuffer=NULL;
|
|
|
|
//Identify stream
|
|
|
|
if (avformat_find_stream_info(m_objFormatCtx, NULL) < 0)
|
|
{
|
|
avformat_close_input(&m_objFormatCtx);
|
|
m_objFormatCtx=NULL;
|
|
|
|
qDebug() << "DATVideoProcess::PreprocessStream cannot find stream info";
|
|
return false;
|
|
}
|
|
|
|
//Find video stream
|
|
intRet = av_find_best_stream(m_objFormatCtx, AVMEDIA_TYPE_VIDEO, -1, -1, NULL, 0);
|
|
|
|
if (intRet < 0)
|
|
{
|
|
avformat_close_input(&m_objFormatCtx);
|
|
qDebug() << "DATVideoProcess::PreprocessStream cannot find video stream";
|
|
return false;
|
|
}
|
|
|
|
m_intVideoStreamIndex = intRet;
|
|
|
|
//Prepare Codec and extract meta data
|
|
|
|
// FIXME: codec is depreecated but replacement fails
|
|
// AVCodecParameters *parms = m_objFormatCtx->streams[m_intVideoStreamIndex]->codecpar;
|
|
// m_objDecoderCtx = new AVCodecContext();
|
|
// avcodec_parameters_to_context(m_objDecoderCtx, parms);
|
|
m_objDecoderCtx = m_objFormatCtx->streams[m_intVideoStreamIndex]->codec;
|
|
|
|
//Meta Data
|
|
|
|
MetaData.PID = m_objFormatCtx->streams[m_intVideoStreamIndex]->id;
|
|
MetaData.CodecID = m_objDecoderCtx->codec_id;
|
|
MetaData.OK_TransportStream = true;
|
|
|
|
|
|
MetaData.Program="";
|
|
MetaData.Stream="";
|
|
|
|
if(m_objFormatCtx->programs)
|
|
{
|
|
objBuffer=NULL;
|
|
|
|
av_dict_get_string(m_objFormatCtx->programs[m_intVideoStreamIndex]->metadata,&objBuffer,':','\n');
|
|
if(objBuffer!=NULL)
|
|
{
|
|
MetaData.Program = QString("%1").arg(objBuffer);
|
|
}
|
|
}
|
|
|
|
objBuffer=NULL;
|
|
|
|
av_dict_get_string(m_objFormatCtx->streams[m_intVideoStreamIndex]->metadata,&objBuffer,':','\n');
|
|
|
|
if(objBuffer!=NULL)
|
|
{
|
|
MetaData.Stream = QString("%1").arg(objBuffer);
|
|
}
|
|
|
|
emit onMetaDataChanged(&MetaData);
|
|
|
|
//Decoder
|
|
objCodec = avcodec_find_decoder(m_objDecoderCtx->codec_id);
|
|
if(objCodec==NULL)
|
|
{
|
|
avformat_close_input(&m_objFormatCtx);
|
|
m_objFormatCtx=NULL;
|
|
|
|
qDebug() << "DATVideoProcess::PreprocessStream cannot find associated CODEC";
|
|
return false;
|
|
}
|
|
|
|
av_dict_set(&objOpts, "refcounted_frames", "1", 0);
|
|
|
|
if (avcodec_open2(m_objDecoderCtx, objCodec, &objOpts) < 0)
|
|
{
|
|
avformat_close_input(&m_objFormatCtx);
|
|
m_objFormatCtx=NULL;
|
|
|
|
qDebug() << "DATVideoProcess::PreprocessStream cannot open associated CODEC";
|
|
return false;
|
|
}
|
|
|
|
//Allocate Frame
|
|
m_objFrame = av_frame_alloc();
|
|
|
|
if (!m_objFrame)
|
|
{
|
|
avformat_close_input(&m_objFormatCtx);
|
|
m_objFormatCtx=NULL;
|
|
|
|
qDebug() << "DATVideoProcess::PreprocessStream cannot allocate frame";
|
|
return false;
|
|
}
|
|
|
|
m_intFrameCount=0;
|
|
|
|
|
|
MetaData.Width=m_objDecoderCtx->width;
|
|
MetaData.Height=m_objDecoderCtx->height;
|
|
MetaData.BitRate= m_objDecoderCtx->bit_rate;
|
|
MetaData.Channels=m_objDecoderCtx->channels;
|
|
MetaData.CodecDescription= QString("%1").arg(objCodec->long_name);
|
|
|
|
MetaData.OK_VideoStream = true;
|
|
|
|
emit onMetaDataChanged(&MetaData);
|
|
|
|
return true;
|
|
}
|
|
|
|
bool DATVideoRender::OpenStream(DATVideostream *objDevice)
|
|
{
|
|
int intIOBufferSize = 32768;
|
|
unsigned char * ptrIOBuffer = NULL;
|
|
AVIOContext * objIOCtx = NULL;
|
|
|
|
if(m_blnRunning)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
|
|
if(objDevice==NULL)
|
|
{
|
|
qDebug() << "DATVideoProcess::OpenStream QIODevice is NULL";
|
|
|
|
return false;
|
|
}
|
|
|
|
|
|
if(m_blnIsOpen)
|
|
{
|
|
qDebug() << "DATVideoProcess::OpenStream already open";
|
|
|
|
return false;
|
|
}
|
|
|
|
if(objDevice->bytesAvailable()<=0)
|
|
{
|
|
|
|
qDebug() << "DATVideoProcess::OpenStream no data available";
|
|
|
|
MetaData.OK_Data=false;
|
|
emit onMetaDataChanged(&MetaData);
|
|
|
|
return false;
|
|
}
|
|
|
|
//Only once execution
|
|
m_blnRunning=true;
|
|
|
|
MetaData.OK_Data=true;
|
|
emit onMetaDataChanged(&MetaData);
|
|
|
|
|
|
InitializeFFMPEG();
|
|
|
|
|
|
if(!m_blnIsFFMPEGInitialized)
|
|
{
|
|
qDebug() << "DATVideoProcess::OpenStream FFMPEG not initialized";
|
|
|
|
m_blnRunning=false;
|
|
return false;
|
|
}
|
|
|
|
if(!objDevice->open(QIODevice::ReadOnly))
|
|
{
|
|
qDebug() << "DATVideoProcess::OpenStream cannot open QIODevice";
|
|
|
|
m_blnRunning=false;
|
|
return false;
|
|
}
|
|
|
|
|
|
//Connect QIODevice to FFMPEG Reader
|
|
|
|
m_objFormatCtx = avformat_alloc_context();
|
|
|
|
if(m_objFormatCtx==NULL)
|
|
{
|
|
qDebug() << "DATVideoProcess::OpenStream cannot alloc format FFMPEG context";
|
|
|
|
m_blnRunning=false;
|
|
return false;
|
|
}
|
|
|
|
ptrIOBuffer = (unsigned char *)av_malloc(intIOBufferSize+ AV_INPUT_BUFFER_PADDING_SIZE);
|
|
|
|
objIOCtx = avio_alloc_context( ptrIOBuffer,
|
|
intIOBufferSize,
|
|
0,
|
|
reinterpret_cast<void *>(objDevice),
|
|
&ReadFunction,
|
|
NULL,
|
|
&SeekFunction);
|
|
|
|
m_objFormatCtx->pb = objIOCtx;
|
|
m_objFormatCtx->flags |= AVFMT_FLAG_CUSTOM_IO;
|
|
|
|
|
|
if (avformat_open_input(&m_objFormatCtx, NULL , NULL, NULL) < 0)
|
|
{
|
|
qDebug() << "DATVideoProcess::OpenStream cannot open stream";
|
|
|
|
m_blnRunning=false;
|
|
return false;
|
|
}
|
|
|
|
if(!PreprocessStream())
|
|
{
|
|
m_blnRunning=false;
|
|
return false;
|
|
}
|
|
|
|
|
|
m_blnIsOpen=true;
|
|
|
|
m_blnRunning=false;
|
|
|
|
return true;
|
|
}
|
|
|
|
bool DATVideoRender::RenderStream()
|
|
{
|
|
AVPacket objPacket;
|
|
int intGotFrame;
|
|
bool blnNeedRenderingSetup;
|
|
|
|
if(!m_blnIsOpen)
|
|
{
|
|
qDebug() << "DATVideoProcess::RenderStream Stream not open";
|
|
|
|
return false;
|
|
}
|
|
|
|
if(m_blnRunning)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
//Only once execution
|
|
m_blnRunning=true;
|
|
|
|
//********** Rendering **********
|
|
|
|
if (av_read_frame(m_objFormatCtx, &objPacket) < 0)
|
|
{
|
|
qDebug() << "DATVideoProcess::RenderStream reading packet error";
|
|
|
|
m_blnRunning=false;
|
|
return false;
|
|
}
|
|
|
|
//Video channel
|
|
if (objPacket.stream_index == m_intVideoStreamIndex)
|
|
{
|
|
memset(m_objFrame, 0, sizeof(AVFrame));
|
|
av_frame_unref(m_objFrame);
|
|
|
|
intGotFrame=0;
|
|
|
|
if(new_decode( m_objDecoderCtx, m_objFrame, &intGotFrame, &objPacket)<0)
|
|
{
|
|
qDebug() << "DATVideoProcess::RenderStream decoding packet error";
|
|
|
|
m_blnRunning=false;
|
|
return false;
|
|
}
|
|
|
|
if(intGotFrame)
|
|
{
|
|
//Rendering and RGB Converter setup
|
|
|
|
blnNeedRenderingSetup=(m_intFrameCount==0);
|
|
blnNeedRenderingSetup|=(m_objSwsCtx==NULL);
|
|
|
|
if((m_intCurrentRenderWidth!=m_objFrame->width) || (m_intCurrentRenderHeight!=m_objFrame->height))
|
|
{
|
|
blnNeedRenderingSetup=true;
|
|
}
|
|
|
|
if(blnNeedRenderingSetup)
|
|
{
|
|
if(m_objSwsCtx!=NULL)
|
|
{
|
|
sws_freeContext(m_objSwsCtx);
|
|
m_objSwsCtx=NULL;
|
|
}
|
|
|
|
//Convertisseur YUV -> RGB
|
|
m_objSwsCtx = sws_alloc_context();
|
|
|
|
av_opt_set_int(m_objSwsCtx,"srcw",m_objFrame->width,0);
|
|
av_opt_set_int(m_objSwsCtx,"srch",m_objFrame->height,0);
|
|
av_opt_set_int(m_objSwsCtx,"src_format",m_objFrame->format,0);
|
|
|
|
av_opt_set_int(m_objSwsCtx,"dstw",m_objFrame->width,0);
|
|
av_opt_set_int(m_objSwsCtx,"dsth",m_objFrame->height,0);
|
|
av_opt_set_int(m_objSwsCtx,"dst_format",AV_PIX_FMT_RGB24 ,0);
|
|
|
|
av_opt_set_int(m_objSwsCtx,"sws_flag", SWS_FAST_BILINEAR /* SWS_BICUBIC*/,0);
|
|
|
|
if(sws_init_context(m_objSwsCtx, NULL, NULL)<0)
|
|
{
|
|
qDebug() << "DATVideoProcess::RenderStream cannont init video data converter";
|
|
|
|
m_objSwsCtx=NULL;
|
|
|
|
m_blnRunning=false;
|
|
return false;
|
|
|
|
}
|
|
|
|
if((m_intCurrentRenderHeight>0) && (m_intCurrentRenderWidth>0))
|
|
{
|
|
//av_freep(&m_pbytDecodedData[0]);
|
|
//av_freep(&m_pintDecodedLineSize[0]);
|
|
}
|
|
|
|
if(av_image_alloc(m_pbytDecodedData, m_pintDecodedLineSize,m_objFrame->width, m_objFrame->height, AV_PIX_FMT_RGB24, 1)<0)
|
|
{
|
|
qDebug() << "DATVideoProcess::RenderStream cannont init video image buffer";
|
|
|
|
sws_freeContext(m_objSwsCtx);
|
|
m_objSwsCtx=NULL;
|
|
|
|
m_blnRunning=false;
|
|
return false;
|
|
|
|
}
|
|
|
|
//Rendering device setup
|
|
|
|
resizeTVScreen(m_objFrame->width,m_objFrame->height);
|
|
update();
|
|
resetImage();
|
|
|
|
m_intCurrentRenderWidth=m_objFrame->width;
|
|
m_intCurrentRenderHeight=m_objFrame->height;
|
|
|
|
MetaData.Width = m_objFrame->width;
|
|
MetaData.Height = m_objFrame->height;
|
|
MetaData.OK_Decoding = true;
|
|
emit onMetaDataChanged(&MetaData);
|
|
}
|
|
|
|
//Frame rendering
|
|
|
|
if(sws_scale(m_objSwsCtx, m_objFrame->data, m_objFrame->linesize, 0, m_objFrame->height, m_pbytDecodedData, m_pintDecodedLineSize)<0)
|
|
{
|
|
qDebug() << "DATVideoProcess::RenderStream error converting video frame to RGB";
|
|
|
|
m_blnRunning=false;
|
|
return false;
|
|
}
|
|
|
|
renderImage(m_pbytDecodedData[0]);
|
|
|
|
av_frame_unref(m_objFrame);
|
|
|
|
m_intFrameCount ++;
|
|
}
|
|
|
|
}
|
|
|
|
av_packet_unref(&objPacket);
|
|
|
|
//********** Rendering **********
|
|
|
|
m_blnRunning=false;
|
|
|
|
return true;
|
|
}
|
|
|
|
bool DATVideoRender::CloseStream(QIODevice *objDevice)
|
|
{
|
|
|
|
if(m_blnRunning)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
if(!objDevice)
|
|
{
|
|
qDebug() << "DATVideoProcess::CloseStream QIODevice is NULL";
|
|
|
|
return false;
|
|
}
|
|
|
|
if(!m_blnIsOpen)
|
|
{
|
|
qDebug() << "DATVideoProcess::CloseStream Stream not open";
|
|
|
|
return false;
|
|
}
|
|
|
|
if(!m_objFormatCtx)
|
|
{
|
|
qDebug() << "DATVideoProcess::CloseStream FFMEG Context is not initialized";
|
|
|
|
return false;
|
|
}
|
|
|
|
//Only once execution
|
|
m_blnRunning=true;
|
|
|
|
// maybe done in the avcodec_close
|
|
// avformat_close_input(&m_objFormatCtx);
|
|
// m_objFormatCtx=NULL;
|
|
|
|
if(m_objDecoderCtx)
|
|
{
|
|
avcodec_close(m_objDecoderCtx);
|
|
m_objDecoderCtx=NULL;
|
|
}
|
|
|
|
if(m_objFrame)
|
|
{
|
|
av_frame_unref(m_objFrame);
|
|
av_frame_free(&m_objFrame);
|
|
}
|
|
|
|
if(m_objSwsCtx!=NULL)
|
|
{
|
|
sws_freeContext(m_objSwsCtx);
|
|
m_objSwsCtx=NULL;
|
|
}
|
|
|
|
objDevice->close();
|
|
|
|
m_blnIsOpen=false;
|
|
|
|
m_blnRunning=false;
|
|
|
|
m_intCurrentRenderWidth=-1;
|
|
m_intCurrentRenderHeight=-1;
|
|
|
|
ResetMetaData();
|
|
emit onMetaDataChanged(&MetaData);
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Replacement of deprecated avcodec_decode_video2 with the same signature
|
|
* https://blogs.gentoo.org/lu_zero/2016/03/29/new-avcodec-api/
|
|
*/
|
|
int DATVideoRender::new_decode(AVCodecContext *avctx, AVFrame *frame, int *got_frame, AVPacket *pkt)
|
|
{
|
|
int ret;
|
|
|
|
*got_frame = 0;
|
|
|
|
if (pkt) {
|
|
ret = avcodec_send_packet(avctx, pkt);
|
|
// In particular, we don't expect AVERROR(EAGAIN), because we read all
|
|
// decoded frames with avcodec_receive_frame() until done.
|
|
if (ret < 0)
|
|
return ret == AVERROR_EOF ? 0 : ret;
|
|
}
|
|
|
|
ret = avcodec_receive_frame(avctx, frame);
|
|
if (ret < 0 && ret != AVERROR(EAGAIN) && ret != AVERROR_EOF)
|
|
return ret;
|
|
if (ret >= 0)
|
|
*got_frame = 1;
|
|
|
|
return 0;
|
|
}
|