551 lines
13 KiB
C++
Executable File
551 lines
13 KiB
C++
Executable File
/* This file is a part of plaYUVer project
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* Copyright (C) 2014 by plaYUVer developers
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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/**
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* \file InputStream.cpp
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* \brief Input handling
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*/
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#include <cstdio>
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#include <QtDebug>
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#include "InputStream.h"
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#include "LibMemAlloc.h"
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namespace plaYUVer
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{
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InputStream::InputStream()
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{
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m_iStatus = 0;
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m_pFile = NULL;
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m_uiWidth = 0;
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m_uiHeight = 0;
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m_uiTotalFrameNum = 0;
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m_uiCurrFrameNum = 0;
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m_iErrorStatus = 0;
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m_iPixelFormat = -1;
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m_pppcInputPel[0] = NULL;
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m_pppcInputPel[1] = NULL;
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m_pppcInputPel[2] = NULL;
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m_pppcRGBPel = NULL;
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m_iFileFormat = INVALID;
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}
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InputStream::~InputStream()
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{
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if( m_pFile )
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fclose( m_pFile );
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if( m_pppcInputPel[0] )
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free_mem2Dpel( m_pppcInputPel[0] );
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if( m_pppcInputPel[1] )
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free_mem2Dpel( m_pppcInputPel[1] );
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if( m_pppcInputPel[2] )
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free_mem2Dpel( m_pppcInputPel[2] );
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if( m_pppcRGBPel )
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free_mem3Dpel( m_pppcRGBPel );
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m_iStatus = 0;
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}
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QString InputStream::supportedReadFormats()
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{
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QString formats;
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formats = "*.yuv " // Raw video
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;
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return formats;
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}
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QString InputStream::supportedWriteFormats()
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{
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QString formats;
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formats = "*.bmp " // Windows Bitmap
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"*.jpg "// Joint Photographic Experts Group
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"*.jpeg "// Joint Photographic Experts Group
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"*.png "// Portable Network Graphics
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;
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return formats;
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}
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QStringList InputStream::supportedReadFormatsList()
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{
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QStringList formats;
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formats << "Raw video (*.yuv)";
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return formats;
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}
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QStringList InputStream::supportedWriteFormatsList()
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{
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QStringList formats;
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formats << "Windows Bitmap (*.bmp)" << "Joint Photographic Experts Group (*.jpg *.jpeg)" << "Portable Network Graphics (*.png)" << "Portable Bitmap (*.pbm)"
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<< "Portable Graymap (*.pgm)" << "Portable Pixmap (*.ppm)" << "Tagged Image File Format (*.tiff)" << "X11 Bitmap (*.xbm)" << "X11 Pixmap (*.xpm)";
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return formats;
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}
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QStringList InputStream::supportedPixelFormatList()
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{
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QStringList formats;
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formats << "YUV420" << "YUV400";
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return formats;
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}
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Bool InputStream::needFormatDialog( QString filename )
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{
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QString fileExtension = QFileInfo( filename ).completeSuffix();
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if( !fileExtension.compare( QString( "yuv" ) ) )
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{
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return true;
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}
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else
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{
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return false;
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}
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}
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#ifdef USE_FFMPEG
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static int open_codec_context( int *stream_idx, AVFormatContext *fmt_ctx, enum AVMediaType type )
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{
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int ret;
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AVStream *st;
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AVCodecContext *dec_ctx = NULL;
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AVCodec *dec = NULL;
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ret = av_find_best_stream( fmt_ctx, type, -1, -1, NULL, 0 );
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if( ret < 0 )
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{
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return ret;
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}
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else
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{
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*stream_idx = ret;
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st = fmt_ctx->streams[*stream_idx];
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/* find decoder for the stream */
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dec_ctx = st->codec;
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dec = avcodec_find_decoder( dec_ctx->codec_id );
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if( !dec )
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{
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printf( "Failed to find %s codec\n", av_get_media_type_string( type ) );
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return ret;
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}
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if( ( ret = avcodec_open2( dec_ctx, dec, NULL ) ) < 0 )
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{
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printf( "Failed to open %s codec\n", av_get_media_type_string( type ) );
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return ret;
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}
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}
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return 0;
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}
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Void closeAvFormat( LibAvContext avContext )
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{
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if( avContext.video_dec_ctx )
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avcodec_close( avContext.video_dec_ctx );
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avformat_close_input( &avContext.fmt_ctx );
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av_free( avContext.frame );
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av_free( avContext.video_dst_data[0] );
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}
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Bool initAvFormat( LibAvContext avContext, QString filename, UInt width, UInt height )
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{
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Bool bRet = true;
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int ret = 0;
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avContext.video_stream_idx = -1;
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char *src_filename = filename.toLocal8Bit().data();
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FILE *video_dst_file = NULL;
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int video_frame_count = 0;
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int audio_frame_count = 0;
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/* register all formats and codecs */
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av_register_all();
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/* open input file, and allocate format context */
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if( avformat_open_input( &avContext.fmt_ctx, src_filename, NULL, NULL ) < 0 )
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{
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qDebug( ) << " Could not open source file %s !!!" << filename << endl;
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return false;
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}
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/* retrieve stream information */
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if( avformat_find_stream_info( avContext.fmt_ctx, NULL ) < 0 )
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{
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qDebug( ) << " Could not find stream information !!!" << endl;
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return false;
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}
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if( open_codec_context( &avContext.video_stream_idx, avContext.fmt_ctx, AVMEDIA_TYPE_VIDEO ) >= 0 )
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{
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avContext.video_stream = avContext.fmt_ctx->streams[avContext.video_stream_idx];
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avContext.video_dec_ctx = avContext.video_stream->codec;
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/* allocate image where the decoded image will be put */
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ret = av_image_alloc( avContext.video_dst_data, avContext.video_dst_linesize, avContext.video_dec_ctx->width, avContext.video_dec_ctx->height,
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avContext.video_dec_ctx->pix_fmt, 1 );
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if( ret < 0 )
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{
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qDebug( ) << " Could not allocate raw video buffer !!!" << endl;
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closeAvFormat( avContext );
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return false;
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}
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avContext.video_dst_bufsize = ret;
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}
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/* dump input information to stderr */
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//av_dump_format(fmt_ctx, 0, src_filename, 0);
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if( !avContext.video_stream )
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{
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qDebug( ) << " Could not find audio or video stream in the input, aborting !!!" << endl;
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bRet = false;
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closeAvFormat( avContext );
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return false;
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}
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avContext.frame = avcodec_alloc_frame();
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if( !avContext.frame )
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{
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qDebug( ) << " Could not allocate frame !!!" << endl;
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ret = AVERROR( ENOMEM );
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closeAvFormat( avContext );
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return false;
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}
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/* initialize packet, set data to NULL, let the demuxer fill it */
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av_init_packet( &avContext.pkt );
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avContext.pkt.data = NULL;
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avContext.pkt.size = 0;
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return true;
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}
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Bool decodeAvFormat( LibAvContext avContext )
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{
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Int got_frame;
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int ret;
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/* read frames from the file */
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if( av_read_frame( avContext.fmt_ctx, &avContext.pkt ) >= 0 )
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{
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if( avContext.pkt.stream_index == avContext.video_stream_idx )
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{
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/* decode video frame */
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ret = avcodec_decode_video2( avContext.video_dec_ctx, avContext.frame, &got_frame, &avContext.pkt );
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if( ret < 0 )
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{
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fprintf( stderr, "Error decoding video frame\n" );
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return false;
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}
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if( got_frame )
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{
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/* copy decoded frame to destination buffer:
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* this is required since rawvideo expects non aligned data */
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av_image_copy( avContext.video_dst_data, avContext.video_dst_linesize, ( const uint8_t ** )( avContext.frame->data ), avContext.frame->linesize,
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avContext.video_dec_ctx->pix_fmt, avContext.video_dec_ctx->width, avContext.video_dec_ctx->height );
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/* write to rawvideo file */
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//fwrite( avContext.video_dst_data[0], 1, avContext.video_dst_bufsize, avContext.video_dst_file );
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}
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}
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av_free_packet( &avContext.pkt );
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}
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// /* flush cached frames */
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// avContext.pkt.data = NULL;
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// avContext.pkt.size = 0;
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// do
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// {
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// decode_packet( &got_frame, 1 );
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// }
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// while( got_frame );
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true;
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}
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#endif
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Void InputStream::init( QString filename, UInt width, UInt height, Int input_format )
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{
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if( width <= 0 || height <= 0 )
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{
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//Error
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return;
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}
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m_cFilename = filename;
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m_pFile = fopen( m_cFilename.toLocal8Bit().data(), "rb" );
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if( m_pFile == NULL )
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{
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// Error
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return;
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}
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m_uiWidth = width;
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m_uiHeight = height;
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m_iFileFormat = YUVFormat;
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m_iPixelFormat = input_format;
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UInt64 frame_bytes_input = m_uiWidth * m_uiHeight * 1.5;
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UInt64 alloc_memory;
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fseek( m_pFile, 0, SEEK_END );
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m_uiTotalFrameNum = ftell( m_pFile ) / ( frame_bytes_input );
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fseek( m_pFile, 0, SEEK_SET );
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if( m_iFileFormat == YUVFormat )
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{
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switch( m_iPixelFormat )
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{
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case YUV420:
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alloc_memory = get_mem2Dpel( &( m_pppcInputPel[0] ), m_uiHeight, m_uiWidth );
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if( !alloc_memory )
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{
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//Error
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return;
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}
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alloc_memory = get_mem2Dpel( &( m_pppcInputPel[1] ), m_uiHeight / 2, m_uiWidth / 2 );
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if( !alloc_memory )
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{
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//Error
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return;
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}
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alloc_memory = get_mem2Dpel( &( m_pppcInputPel[2] ), m_uiHeight / 2, m_uiWidth / 2 );
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if( !alloc_memory )
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{
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//Error
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return;
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}
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break;
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case YUV400:
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alloc_memory = get_mem2Dpel( &( m_pppcInputPel[0] ), m_uiHeight, m_uiWidth );
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if( !alloc_memory )
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{
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//Error
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return;
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}
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break;
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}
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}
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get_mem3Dpel( &m_pppcRGBPel, 3, m_uiHeight, m_uiWidth );
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if( !alloc_memory )
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{
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//Error
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return;
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}
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m_iStatus = 1;
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return;
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}
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static inline void yuvToRgb( int iY, int iU, int iV, int &iR, int &iG, int &iB )
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{
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iR = iY + 1402 * iV / 1000;
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iG = iY - ( 101004 * iU + 209599 * iV ) / 293500;
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iB = iY + 1772 * iU / 1000;
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if( iR < 0 )
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iR = 0;
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if( iG < 0 )
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iG = 0;
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if( iB < 0 )
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iB = 0;
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if( iR > 255 )
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iR = 255;
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if( iG > 255 )
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iG = 255;
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if( iB > 255 )
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iB = 255;
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}
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Void InputStream::YUV420toRGB()
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{
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Int iY, iU, iV, iR, iG, iB;
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for( Int y = 0; y < m_uiHeight; y += 2 )
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{
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for( Int x = 0; x < m_uiWidth; x += 2 )
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{
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// Pixel (x, y).
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iY = m_pppcInputPel[0][y][x];
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iU = m_pppcInputPel[1][y >> 1][x >> 1];
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iV = m_pppcInputPel[2][y >> 1][x >> 1];
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iU -= 128;
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iV -= 128;
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yuvToRgb( iY, iU, iV, iR, iG, iB );
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m_pppcRGBPel[0][y][x] = iR;
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m_pppcRGBPel[1][y][x] = iG;
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m_pppcRGBPel[2][y][x] = iB;
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// Pixel (x+1, y)
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iY = m_pppcInputPel[0][y][x + 1];
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yuvToRgb( iY, iU, iV, iR, iG, iB );
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m_pppcRGBPel[0][y][x + 1] = iR;
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m_pppcRGBPel[1][y][x + 1] = iG;
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m_pppcRGBPel[2][y][x + 1] = iB;
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// Pixel (x, y+1)
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iY = m_pppcInputPel[0][y + 1][x];
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yuvToRgb( iY, iU, iV, iR, iG, iB );
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m_pppcRGBPel[0][y + 1][x] = iR;
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m_pppcRGBPel[1][y + 1][x] = iG;
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m_pppcRGBPel[2][y + 1][x] = iB;
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// Pixel (x+1, y+1)
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iY = m_pppcInputPel[0][y + 1][x + 1];
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yuvToRgb( iY, iU, iV, iR, iG, iB );
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m_pppcRGBPel[0][y + 1][x + 1] = iR;
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m_pppcRGBPel[1][y + 1][x + 1] = iG;
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m_pppcRGBPel[2][y + 1][x + 1] = iB;
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}
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}
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}
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Void InputStream::readFrame()
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{
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UInt64 bytes_read = 0;
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if( m_iStatus == 0 )
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{
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return;
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}
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UInt64 frame_bytes_input = m_uiWidth * m_uiHeight * 1.5;
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switch( m_iPixelFormat )
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{
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case YUV420:
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bytes_read = fread( &( m_pppcInputPel[0][0][0] ), sizeof(Pel), m_uiWidth * m_uiHeight, m_pFile );
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if( bytes_read != ( m_uiWidth * m_uiHeight ) )
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{
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m_iErrorStatus = READING;
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qDebug( ) << " Reading error !!!" << endl;
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return;
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}
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bytes_read = fread( &( m_pppcInputPel[1][0][0] ), sizeof(Pel), m_uiWidth * m_uiHeight / 4, m_pFile );
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if( bytes_read != ( m_uiWidth * m_uiHeight / 4 ) )
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{
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m_iErrorStatus = READING;
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qDebug( ) << " Reading error !!!" << endl;
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return;
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}
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bytes_read = fread( &( m_pppcInputPel[2][0][0] ), sizeof(Pel), m_uiWidth * m_uiHeight / 4, m_pFile );
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if( bytes_read != ( m_uiWidth * m_uiHeight / 4 ) )
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{
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m_iErrorStatus = READING;
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qDebug( ) << " Reading error !!!" << endl;
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return;
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}
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YUV420toRGB();
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break;
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}
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return;
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}
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Bool InputStream::writeFrame( const QString& filename )
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{
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getFrameQImage().save( filename );
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return true;
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}
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QImage InputStream::getFrameQImage()
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{
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// Create QImage
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QImage img( m_uiWidth, m_uiHeight, QImage::Format_RGB888 );
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UInt64 frame_bytes = m_uiWidth * m_uiHeight;
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Pel pelR, pelG, pelB;
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Pel* bufferRGB = &( m_pppcRGBPel[0][0][0] );
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if( sizeof(Pel) == sizeof(unsigned char) )
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{
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for( Int y = 0; y < m_uiHeight; y++ )
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{
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for( Int x = 0; x < m_uiWidth; x++ )
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{
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img.setPixel( x, y, qRgb( m_pppcRGBPel[0][y][x], m_pppcRGBPel[1][y][x], m_pppcRGBPel[2][y][x] ) );
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//img.setPixel( x, y, qRgb( 0, 0, 255 ) );
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}
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}
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}
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else
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{
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Q_ASSERT( 0 );
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}
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return img;
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}
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#ifdef USE_OPENCV
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cv::Mat InputStream::getFrameCvMat()
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{
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cv::Mat cvMat( m_uiHeight, m_uiWidth, CV_8UC3 );
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return cvMat;
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}
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#endif
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Void InputStream::seekInput( Int new_frame_num )
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{
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UInt64 frame_bytes_input = m_uiWidth * m_uiHeight * 1.5;
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UInt64 nbytes_seek = frame_bytes_input * new_frame_num;
|
|
fseek( m_pFile, nbytes_seek, SEEK_SET );
|
|
m_uiCurrFrameNum = new_frame_num;
|
|
}
|
|
|
|
Bool InputStream::checkErrors( Int error_type )
|
|
{
|
|
if( m_iErrorStatus == error_type )
|
|
{
|
|
m_iErrorStatus = NO_ERROR;
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
} // NAMESPACE
|