size_t WEBPImageDecoder::frameCount()
{
if (!updateDemuxer())
return 0;
return m_frameBufferCache.size();
}
size_t WEBPImageDecoder::decodeFrameCount()
{
// If updateDemuxer() fails, return the existing number of frames. This way
// if we get halfway through the image before decoding fails, we won't
// suddenly start reporting that the image has zero frames.
return updateDemuxer() ? WebPDemuxGetI(m_demux, WEBP_FF_FRAME_COUNT) : m_frameBufferCache.size();
}
bool WEBPImageDecoder::isSizeAvailable()
{
if (!ImageDecoder::isSizeAvailable())
updateDemuxer();
return ImageDecoder::isSizeAvailable();
}
