bool MediaEngine::openContext() {
#ifdef USE_FFMPEG
InitFFmpeg();
if (m_pFormatCtx || !m_pdata)
return false;
m_mpegheaderReadPos = 0;
m_decodingsize = 0;
u8* tempbuf = (u8*)av_malloc(m_bufSize);
m_pFormatCtx = avformat_alloc_context();
m_pIOContext = avio_alloc_context(tempbuf, m_bufSize, 0, (void*)this, _MpegReadbuffer, NULL, 0);
m_pFormatCtx->pb = m_pIOContext;
// Open video file
if (avformat_open_input((AVFormatContext**)&m_pFormatCtx, NULL, NULL, NULL) != 0)
return false;
if (avformat_find_stream_info(m_pFormatCtx, NULL) < 0) {
closeContext();
return false;
}
if (m_videoStream >= (int)m_pFormatCtx->nb_streams) {
WARN_LOG_REPORT(ME, "Bad video stream %d", m_videoStream);
m_videoStream = -1;
}
if (m_videoStream == -1) {
// Find the first video stream
for(int i = 0; i < (int)m_pFormatCtx->nb_streams; i++) {
if(m_pFormatCtx->streams[i]->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
m_videoStream = i;
break;
}
}
if(m_videoStream == -1)
return false;
}
if (!setVideoStream(m_videoStream, true))
return false;
setVideoDim();
m_audioContext = AT3Create();
m_isVideoEnd = false;
m_noAudioData = false;
m_mpegheaderReadPos++;
av_seek_frame(m_pFormatCtx, m_videoStream, 0, 0);
#endif // USE_FFMPEG
return true;
}
bool MediaEngine::openContext() {
#ifdef USE_FFMPEG
InitFFmpeg();
if (m_pFormatCtx || !m_pdata)
return false;
m_mpegheaderReadPos = 0;
m_decodingsize = 0;
u8* tempbuf = (u8*)av_malloc(m_bufSize);
m_pFormatCtx = avformat_alloc_context();
m_pIOContext = avio_alloc_context(tempbuf, m_bufSize, 0, (void*)this, _MpegReadbuffer, NULL, 0);
m_pFormatCtx->pb = m_pIOContext;
// Open video file
if (avformat_open_input((AVFormatContext**)&m_pFormatCtx, NULL, NULL, NULL) != 0)
return false;
if (avformat_find_stream_info(m_pFormatCtx, NULL) < 0)
return false;
if (m_videoStream >= (int)m_pFormatCtx->nb_streams) {
WARN_LOG_REPORT(ME, "Bad video stream %d", m_videoStream);
m_videoStream = -1;
}
if (m_videoStream == -1) {
// Find the first video stream
for(int i = 0; i < (int)m_pFormatCtx->nb_streams; i++) {
if(m_pFormatCtx->streams[i]->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
m_videoStream = i;
break;
}
}
if(m_videoStream == -1)
return false;
}
// Get a pointer to the codec context for the video stream
m_pCodecCtx = m_pFormatCtx->streams[m_videoStream]->codec;
// Find the decoder for the video stream
AVCodec *pCodec = avcodec_find_decoder(m_pCodecCtx->codec_id);
if(pCodec == NULL)
return false;
// Open codec
AVDictionary *optionsDict = 0;
if(avcodec_open2(m_pCodecCtx, pCodec, &optionsDict)<0)
return false; // Could not open codec
setVideoDim();
m_audioContext = AT3Create();
m_isVideoEnd = false;
m_noAudioData = false;
m_mpegheaderReadPos++;
av_seek_frame(m_pFormatCtx, m_videoStream, 0, 0);
#endif // USE_FFMPEG
return true;
}
