Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Hari_K
Beginner
38 Views

MP4 Mux nor working in IPP7.1

Hi, Is there a working sample in IPP 7.1 that shows MP4 mux with video? The examples in UMC documentation are not in sync with IPP7.1. The following is a code segment I wrote for converting a H264 pure video stream to an MP4 file. The splitter reading H.264 file works correctly but the MP4 mux produces an empty file (1 KB size). I had the same problem when trying to output TS with MPEG2Muxer. I appreciate any help. thanks. -hari

 

[cpp] UMC::Status result; int nCount = 0; UMC::MediaData buf; buf.Alloc(1024*1024); FileReader reader; FileReaderParams readerParams; readerParams.m_sFileName = argv[nInFileNameIdx]; UMC::Status status = reader.Init(&readerParams); if(status != UMC::UMC_OK) { printf("\ncan not open input file"); return 1; } Splitter *pSplitter = (Splitter*)new ThreadedDemuxer(); if(!pSplitter) return UMC_ERR_ALLOC; SplitterParams splitterParams; splitterParams.m_pDataReader = &reader; splitterParams.m_iFlags = VIDEO_SPLITTER; if(UMC_OK != pSplitter->Init(&splitterParams)) { UMC_DELETE(pSplitter); return UMC_ERR_FAILED; } pSplitter->Run(); // init muxer UMC::MP4Muxer outMP4Muxer; UMC::MuxerParams muxerParams; UMC::FileWriter writer; UMC::FileWriterParams writerParams; UMC::AudioStreamInfo audioInfo; UMC::VideoStreamInfo videoInfo; // Initialize file writer //writerParams.m_iBufferSize = 0; writerParams.m_sFileName = argv[nOutFileNameIdx]; result = writer.Init(&writerParams); if(result != UMC::UMC_OK) { printf("\ncan not create file writer: %s", argv[nOutFileNameIdx]); return 1; } // Fill params structure muxerParams.m_lpDataWriter = &writer; muxerParams.m_SystemType = MPEG4_SYSTEM_STREAM; //UMC::H264_PURE_VIDEO_STREAM;; // muxerParams. m_lFlags = UMC::FLAG_START_WITH_HEADER|UMC::FLAG_FRAGMENTED_AT_I_PICTURES;// | FLAG_DATA_FROM_SPLITTER;; //FLAG_FRAGMENTED_AT_I_PICTURES | FLAG_DATA_FROM_SPLITTER; muxerParams.m_nNumberOfTracks = 1; // currently video only; streamInfo->m_nOfTracks; int videoTrackNo = 0; muxerParams.m_pTrackParams = new UMC::TrackParams[muxerParams.m_nNumberOfTracks]; // video info // video params muxerParams.m_pTrackParams[videoTrackNo].type = UMC::VIDEO_TRACK; muxerParams.m_pTrackParams[videoTrackNo].bufferParams.m_prefInputBufferSize=50000;//20000000; muxerParams.m_pTrackParams[videoTrackNo].bufferParams.m_prefOutputBufferSize= 50000;//20000000; muxerParams.m_pTrackParams[videoTrackNo].bufferParams.m_numberOfFrames = 30; UMC::SplitterInfo *pSplInfo = new SplitterInfo(); pSplitter->GetInfo(&pSplInfo); muxerParams.m_pTrackParams[videoTrackNo].info.video = (UMC::VideoStreamInfo *)pSplInfo->m_ppTrackInfo[0]->m_pStreamInfo; //muxerParams.m_pTrackParams[videoTrackNo].info.video = new UMC::VideoStreamInfo(); //muxerParams.m_pTrackParams[videoTrackNo].info.video->iBitrate = 2000000; //muxerParams.m_pTrackParams[videoTrackNo].info.video->streamType = UMC::H264_VIDEO; //muxerParams.m_pTrackParams[videoTrackNo].info.video->streamSubtype = UMC::AVC1_VIDEO; //muxerParams.m_pTrackParams[videoTrackNo].info.video->videoInfo.m_colorFormat = UMC::YV12; //muxerParams.m_pTrackParams[videoTrackNo].info.video->fFramerate = 60; //muxerParams.m_pTrackParams[videoTrackNo].info.video->videoInfo.m_iHeight = 720; //muxerParams.m_pTrackParams[videoTrackNo].info.video->videoInfo.m_iWidth = 1280; // call init result = outMP4Muxer.Init(&muxerParams); if(result != UMC::UMC_OK) { printf("\ncan not create MP4 mux for: %s", argv[nOutFileNameIdx]); return 1; } int nTotSize = 0; float nFramePeriod = 1.0/60; float nCutTS = 0.0; // read frames for(;;) { // ask for video input buffer status = outMP4Muxer.LockBuffer(&buf, 0); if (UMC::UMC_OK == status) { //read next frame do { status = pSplitter->GetNextData(&buf, 0); } while(status == UMC_ERR_NOT_ENOUGH_DATA); if(status == UMC_ERR_END_OF_STREAM){ printf("\nEnd of stream"); outMP4Muxer.PutEndOfStream(0); outMP4Muxer.Close(); break; } else if(status != UMC_OK) { printf("\ncan not get data from splitter"); } else { buf.m_fPTSEnd = buf.m_fPTSStart = nCutTS; buf.m_fPTSEnd = nCutTS + nFramePeriod; nCutTS += nFramePeriod; printf("\nPTS-St: %f PTS-Ed: %f FrmType: %d", buf.m_fPTSStart, buf.m_fPTSEnd, buf.m_frameType); status = outMP4Muxer.UnlockBuffer(&buf, 0); printf("\nFrame %d size: %d status: %d", nCount++, buf.GetDataSize(), status); nTotSize += buf.GetDataSize(); } } } printf("\nTotal data: %d", nTotSize); printf("\n MP4 mux for: %s", argv[nOutFileNameIdx]); [/cpp]

0 Kudos
0 Replies
Reply