void MP4BytesProperty::SetValueSize(u_int32_t valueSize, u_int32_t index)
{
if (m_fixedValueSize) {
throw new MP4Error("can't change size of fixed sized property",
"MP4BytesProperty::SetValueSize");
}
if (m_values[index] != NULL) {
m_values[index] = (u_int8_t*)MP4Realloc(m_values[index], valueSize);
}
m_valueSizes[index] = valueSize;
}
void MP4Track::WriteSample(
const u_int8_t* pBytes,
u_int32_t numBytes,
MP4Duration duration,
MP4Duration renderingOffset,
bool isSyncSample)
{
VERBOSE_WRITE_SAMPLE(m_pFile->GetVerbosity(),
printf("WriteSample: track %u id %u size %u (0x%x) ",
m_trackId, m_writeSampleId, numBytes, numBytes));
if (pBytes == NULL && numBytes > 0) {
throw new MP4Error("no sample data", "MP4WriteSample");
}
if (duration == MP4_INVALID_DURATION) {
duration = GetFixedSampleDuration();
}
VERBOSE_WRITE_SAMPLE(m_pFile->GetVerbosity(),
printf("duration "LLU"\n", duration));
// append sample bytes to chunk buffer
m_pChunkBuffer = (u_int8_t*)MP4Realloc(m_pChunkBuffer,
m_chunkBufferSize + numBytes);
memcpy(&m_pChunkBuffer[m_chunkBufferSize], pBytes, numBytes);
m_chunkBufferSize += numBytes;
m_chunkSamples++;
m_chunkDuration += duration;
UpdateSampleSizes(m_writeSampleId, numBytes);
UpdateSampleTimes(duration);
UpdateRenderingOffsets(m_writeSampleId, renderingOffset);
UpdateSyncSamples(m_writeSampleId, isSyncSample);
if (IsChunkFull(m_writeSampleId)) {
WriteChunkBuffer();
}
UpdateDurations(duration);
UpdateModificationTimes();
m_writeSampleId++;
}
