mp4.cpp

完整的RTP RTSP代码库

			return ((MP4File*)hFile)->AddODTrack();
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return MP4_INVALID_TRACK_ID;
}

extern "C" MP4TrackId MP4AddSceneTrack(MP4FileHandle hFile)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			return ((MP4File*)hFile)->AddSceneTrack();
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return MP4_INVALID_TRACK_ID;
}

extern "C" MP4TrackId MP4AddAudioTrack(
	MP4FileHandle hFile, 
	u_int32_t timeScale, 
	MP4Duration sampleDuration, 
	u_int8_t audioType)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			return ((MP4File*)hFile)->
				AddAudioTrack(timeScale, sampleDuration, audioType);
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return MP4_INVALID_TRACK_ID;
}

//
// API to initialize ismacryp properties to sensible defaults.
// if the input pointer is null then an ismacryp params is malloc'd.
// caller must see to it that it is properly disposed of.
//
extern "C" mp4v2_ismacrypParams *MP4DefaultISMACrypParams(mp4v2_ismacrypParams *ptr)
{
    try
    {
        if (ptr == NULL) {
            ptr = (mp4v2_ismacrypParams *)MP4Malloc(sizeof(mp4v2_ismacrypParams));
        }
        memset(ptr, 0, sizeof(*ptr));
        return ptr;
    }

    catch (...) {
      return MP4_INVALID_TRACK_ID;
    }
}


extern "C" MP4TrackId MP4AddEncAudioTrack(MP4FileHandle hFile, 
					  u_int32_t timeScale, 
					  MP4Duration sampleDuration,
                                          mp4v2_ismacrypParams *icPp,
					  u_int8_t audioType)
{
  if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
    try {
      if (icPp == NULL) {
	return ((MP4File*)hFile)->
	  AddEncAudioTrack(timeScale, sampleDuration, audioType,
			   0, 0, 
			   0, 0, 
			   false, NULL, false);
      } else {
	return ((MP4File*)hFile)->
	  AddEncAudioTrack(timeScale, sampleDuration, audioType,
			   icPp->scheme_type, icPp->scheme_version, 
			   icPp->key_ind_len, icPp->iv_len, 
			   icPp->selective_enc, icPp->kms_uri, true);
      }
    } catch (MP4Error* e) {
      PRINT_ERROR(e);
      delete e;
    }
  }
  return MP4_INVALID_TRACK_ID;
}
extern "C" MP4TrackId MP4AddAmrAudioTrack(
		MP4FileHandle hFile,
		u_int32_t timeScale,
		u_int16_t modeSet,
		u_int8_t modeChangePeriod,
		u_int8_t framesPerSample,
		bool isAmrWB)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			return ((MP4File*)hFile)->
				AddAmrAudioTrack(timeScale, modeSet, modeChangePeriod, framesPerSample, isAmrWB);
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return MP4_INVALID_TRACK_ID;
}

extern "C" void MP4SetAmrVendor(
		MP4FileHandle hFile,
		MP4TrackId trackId,
		u_int32_t vendor)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			((MP4File*)hFile)->
				SetAmrVendor(trackId, vendor);
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
}

extern "C" void MP4SetAmrDecoderVersion(
		MP4FileHandle hFile,
		MP4TrackId trackId,
		u_int8_t decoderVersion)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			((MP4File*)hFile)->
				SetAmrDecoderVersion(trackId, decoderVersion);
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
}

extern "C" void MP4SetAmrModeSet(
		MP4FileHandle hFile,
		MP4TrackId trackId,
		u_int16_t modeSet)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			((MP4File*)hFile)->
				SetAmrModeSet(trackId, modeSet);
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
}

extern "C" uint16_t MP4GetAmrModeSet(
				     MP4FileHandle hFile,
				     MP4TrackId trackId)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
		  return ((MP4File*)hFile)->
				GetAmrModeSet(trackId);
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return 0;
}

extern "C" MP4TrackId MP4AddHrefTrack (MP4FileHandle hFile,
				       uint32_t timeScale,
				       MP4Duration sampleDuration,
				       const char *base_url)
{
  if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
    try {
      MP4File *pFile = (MP4File *)hFile;

      return pFile->AddHrefTrack(timeScale, 
				 sampleDuration,
				 base_url);
    }
    catch (MP4Error* e) {
      PRINT_ERROR(e);
      delete e;
    }
  }
  return MP4_INVALID_TRACK_ID;
}

extern "C" const char *MP4GetHrefTrackBaseUrl (MP4FileHandle hFile,
					       MP4TrackId trackId)
{
  if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
    try {
      return ((MP4File*)hFile)->GetTrackStringProperty(trackId,
						       "mdia.minf.stbl.stsd.href.burl.base_url");
    }
    catch (MP4Error* e) {
      PRINT_ERROR(e);
      delete e;
    }
  }
  return NULL;
}

extern "C" MP4TrackId MP4AddVideoTrack(
	MP4FileHandle hFile, 
	u_int32_t timeScale, 
	MP4Duration sampleDuration,
	u_int16_t width, 
	u_int16_t height, 
	u_int8_t videoType)
{
  if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
    try {
      MP4File *pFile = (MP4File *)hFile;

      return pFile->AddMP4VideoTrack(timeScale, 
				     sampleDuration, 
				     width, 
				     height, 
				     videoType);
    }
    catch (MP4Error* e) {
      PRINT_ERROR(e);
      delete e;
    }
  }
  return MP4_INVALID_TRACK_ID;
}

extern "C" MP4TrackId MP4AddEncVideoTrack(MP4FileHandle hFile, 
					  u_int32_t timeScale, 
					  MP4Duration sampleDuration,
					  u_int16_t width, 
					  u_int16_t height, 
                                          mp4v2_ismacrypParams *icPp,
					  u_int8_t videoType,
					  const char *oFormat)
{
  if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
    try {

 	  // test for valid ismacrypt session descriptor
      if (icPp == NULL) {
		return MP4_INVALID_TRACK_ID;
      }
      MP4File *pFile = (MP4File *)hFile;

	return pFile->AddEncVideoTrack(timeScale, 
			sampleDuration, 
			width, 
			height, 
			videoType, 
			icPp, 
			oFormat);

    } catch (MP4Error* e) {
      PRINT_ERROR(e);
      delete e;
    }
  }
  return MP4_INVALID_TRACK_ID;
}


extern "C" MP4TrackId MP4AddH264VideoTrack(MP4FileHandle hFile, 
					   u_int32_t timeScale, 
					   MP4Duration sampleDuration,
					   u_int16_t width, 
					   u_int16_t height, 
					   uint8_t AVCProfileIndication,
					   uint8_t profile_compat,
					   uint8_t AVCLevelIndication,
					   uint8_t sampleLenFieldSizeMinusOne)
{
  if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
    try {
      MP4File *pFile = (MP4File *)hFile;

      return pFile->AddH264VideoTrack(timeScale, 
				      sampleDuration, 
				      width, 
				      height, 
				      AVCProfileIndication,
				      profile_compat,
				      AVCLevelIndication,
				      sampleLenFieldSizeMinusOne);
    }
    catch (MP4Error* e) {
      PRINT_ERROR(e);
      delete e;
    }
  }
  return MP4_INVALID_TRACK_ID;
}

extern "C" MP4TrackId MP4AddEncH264VideoTrack(
	MP4FileHandle hFile, 
	u_int32_t timeScale, 
	MP4Duration sampleDuration,
	u_int16_t width, 
	u_int16_t height, 
	MP4FileHandle srcFile, 
	MP4TrackId srcTrackId, 
    mp4v2_ismacrypParams *icPp
)

{
  MP4Atom *srcAtom;
  MP4File *pFile;

  if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
    try {

	pFile = (MP4File *)srcFile;
	srcAtom = pFile->FindTrackAtom(srcTrackId, "mdia.minf.stbl.stsd.avc1.avcC");
	if (srcAtom == NULL)
		return MP4_INVALID_TRACK_ID;

	pFile = (MP4File *)hFile;

	return pFile->AddEncH264VideoTrack(timeScale, 
			 sampleDuration, 
			 width, 
			 height, 
			 srcAtom,
			 icPp);
    }
    catch (MP4Error* e) {
      PRINT_ERROR(e);
      delete e;
    }
  }
  return MP4_INVALID_TRACK_ID;
}

extern "C" void MP4AddH264SequenceParameterSet (MP4FileHandle hFile,
						MP4TrackId trackId,
						const uint8_t *pSequence,
						uint16_t sequenceLen)
{
  if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
    try {
      MP4File *pFile = (MP4File *)hFile;

      pFile->AddH264SequenceParameterSet(trackId,
					 pSequence,
					 sequenceLen);
      return;
    }
    catch (MP4Error* e) {
      PRINT_ERROR(e);
      delete e;
    }
  }
    return;
}
extern "C" void MP4AddH264PictureParameterSet (MP4FileHandle hFile,
					       MP4TrackId trackId,
					       const uint8_t *pPict,
					       uint16_t pictLen)
{
  if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
    try {
      MP4File *pFile = (MP4File *)hFile;

      pFile->AddH264PictureParameterSet(trackId,
					pPict,
					pictLen);
      return;
    }
    catch (MP4Error* e) {
      PRINT_ERROR(e);
      delete e;
    }
  }
    return;
}

extern "C" MP4TrackId MP4AddH263VideoTrack(
		MP4FileHandle hFile,
		u_int32_t timeScale,
		MP4Duration sampleDuration,
		u_int16_t width,
		u_int16_t height,
		u_int8_t h263Level,
		u_int8_t h263Profile,
		u_int32_t avgBitrate,
		u_int32_t maxBitrate)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			return ((MP4File*)hFile)->
				AddH263VideoTrack(timeScale, sampleDuration, width, height, h263Level, h263Profile, avgBitrate, maxBitrate);
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	
	return MP4_INVALID_TRACK_ID;
}

extern "C" void MP4SetH263Vendor(
		MP4FileHandle hFile,
		MP4TrackId trackId,
		u_int32_t vendor)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			((MP4File*)hFile)->
				SetH263Vendor(trackId, vendor);
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
}

extern "C" void MP4SetH263DecoderVersion(
		MP4FileHandle hFile,
		MP4TrackId trackId,
		u_int8_t decoderVersion)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		
		try {
			((MP4File*)hFile)->
				SetH263DecoderVersion(trackId, decoderVersion);
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
}

extern "C" void MP4SetH263Bitrates(
		MP4FileHandle hFile,
		MP4TrackId trackId,
		u_int32_t avgBitrate,
		u_int32_t maxBitrate)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {

		try {
			((MP4File*)hFile)->
				SetH263Bitrates(trackId, avgBitrate, maxBitrate);
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
}

extern "C" MP4TrackId MP4AddHintTrack(
	MP4FileHandle hFile, MP4TrackId refTrackId)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			return ((MP4File*)hFile)->AddHintTrack(refTrackId);
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return MP4_INVALID_TRACK_ID;
}

extern "C" MP4TrackId MP4AddTextTrack(
	MP4FileHandle hFile, MP4TrackId refTrackId)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			return ((MP4File*)hFile)->AddTextTrack(refTrackId);
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return MP4_INVALID_TRACK_ID;
}

extern "C" MP4TrackId MP4AddChapterTextTrack(
	MP4FileHandle hFile, MP4TrackId refTrackId)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			return ((MP4File*)hFile)->AddChapterTextTrack(refTrackId);
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return MP4_INVALID_TRACK_ID;
}


extern "C" MP4TrackId MP4CloneTrack (MP4FileHandle srcFile, 
				     MP4TrackId srcTrackId,
				     MP4FileHandle dstFile,
				     MP4TrackId dstHintTrackReferenceTrack)
{
  MP4TrackId dstTrackId = MP4_INVALID_TRACK_ID;

  if (dstFile == NULL) {
    dstFile = srcFile;
  }

  const char* trackType = 
    MP4GetTrackType(srcFile, srcTrackId);

  if (!trackType) {
    return dstTrackId;
  }

  const char *media_data_name = 
    MP4GetTrackMediaDataName(srcFile, srcTrackId);
  if (media_data_name == NULL) return dstTrackId;

  if (MP4_IS_VIDEO_TRACK_TYPE(trackType)) {
    if (ATOMID(media_data_name) == ATOMID("mp4v")) {
      MP4SetVideoProfileLevel(dstFile, 
			      MP4GetVideoProfileLevel(srcFile));
      dstTrackId = MP4AddVideoTrack(
				    dstFile,
				    MP4GetTrackTimeScale(srcFile, 
							 srcTrackId),
				    MP4GetTrackFixedSampleDuration(srcFile, 
								   srcTrackId),
				    MP4GetTrackVideoWidth(srcFile, 
							  srcTrackId),
				    MP4GetTrackVideoHeight(srcFile, 
							   srcTrackId),
				    MP4GetTrackEsdsObjectTypeId(srcFile, 
								srcTrackId));
    } else if (ATOMID(media_data_name) == ATOMID("avc1")) {
      uint8_t AVCProfileIndication;
      uint8_t profile_compat;
      uint8_t AVCLevelIndication;
      uint32_t sampleLenFieldSizeMinusOne;
      uint64_t temp;
      
      if (MP4GetTrackH264ProfileLevel(srcFile, srcTrackId, 
				      &AVCProfileIndication,
				      &AVCLevelIndication) == false) {
	return dstTrackId;
      }
      if (MP4GetTrackH264LengthSize(srcFile, srcTrackId, 
				    &sampleLenFieldSizeMinusOne) == false) {
	return dstTrackId;
      }
      sampleLenFieldSizeMinusOne--;
      if (MP4GetTrackIntegerProperty(srcFile, srcTrackId, 
				     "mdia.minf.stbl.stsd.*[0].avcC.profile_compatibility",
				     &temp) == false) return dstTrackId;
      profile_compat = temp & 0xff;
      
      dstTrackId = MP4AddH264VideoTrack(dstFile, 
					MP4GetTrackTimeScale(srcFile, 
							     srcTrackId),
					MP4GetTrackFixedSampleDuration(srcFile, 
								       srcTrackId),
					MP4GetTrackVideoWidth(srcFile, 
							      srcTrackId),
					MP4GetTrackVideoHeight(srcFile, 
							       srcTrackId),
					AVCProfileIndication,
					profile_compat,
					AVCLevelIndication,
					sampleLenFieldSizeMinusOne);
        uint8_t **seqheader, **pictheader;
	uint32_t *pictheadersize, *seqheadersize;
	uint32_t ix;
	MP4GetTrackH264SeqPictHeaders(srcFile, srcTrackId, 
				      &seqheader, &seqheadersize,
				      &pictheader, &pictheadersize);
	for (ix = 0; seqheadersize[ix] != 0; ix++) {
	  MP4AddH264SequenceParameterSet(dstFile, dstTrackId,
					 seqheader[ix], seqheadersize[ix]);
	  free(seqheader[ix]);
	}
	free(seqheader);
	free(seqheadersize);
	for (ix = 0; pictheadersize[ix] != 0; ix++) {
	  MP4AddH264PictureParameterSet(dstFile, dstTrackId,
					pictheader[ix], pictheadersize[ix]);
	  free(pictheader[ix]);
	}
	free(pictheader);
	free(pictheadersize);
    } else
      return dstTrackId;