Merge "MPEG4Writer: Handle writing of multiple NAL unit." into pi-dev

}

void MPEG4Writer::addMultipleLengthPrefixedSamples_l(MediaBuffer *buffer) {

    const size_t kExtensionNALSearchRange = 64; // bytes to look for non-VCL NALUs

    const uint8_t *dataStart = (const uint8_t *)buffer->data() + buffer->range_offset();

    const uint8_t *currentNalStart = dataStart;

    const uint8_t *nextNalStart;

    const uint8_t *data = dataStart;

    size_t nextNalSize;

    size_t searchSize = buffer->range_length() > kExtensionNALSearchRange ?

                   kExtensionNALSearchRange : buffer->range_length();

    size_t searchSize = buffer->range_length();

    while (getNextNALUnit(&data, &searchSize, &nextNalStart,

            &nextNalSize, true) == OK) {