void ChunkManager::Private::doPreviewPriority(TorrentFile & file)
{
if (file.getPriority() == EXCLUDED || file.getPriority() == ONLY_SEED_PRIORITY)
return;
if (file.getFirstChunk() == file.getLastChunk())
{
// prioritise whole file
p->prioritise(file.getFirstChunk(),file.getLastChunk(),PREVIEW_PRIORITY);
return;
}
Uint32 nchunks = p->previewChunkRangeSize(file);
if (!nchunks)
return;
p->prioritise(file.getFirstChunk(), file.getFirstChunk()+nchunks, PREVIEW_PRIORITY);
if (file.getLastChunk() - file.getFirstChunk() > nchunks)
{
p->prioritise(file.getLastChunk() - nchunks, file.getLastChunk(), PREVIEW_PRIORITY);
}
}
TorrentFile::TorrentFile(const TorrentFile & tf)
: TorrentFileInterface(tf.getIndex(),QString(),0)
{
setUnencodedPath(tf.unencoded_path);
index = tf.getIndex();
path = tf.getPath();
size = tf.getSize();
cache_offset = tf.getCacheOffset();
first_chunk = tf.getFirstChunk();
first_chunk_off = tf.getFirstChunkOffset();
last_chunk = tf.getLastChunk();
last_chunk_size = tf.getLastChunkSize();
old_priority = priority = tf.getPriority();
missing = tf.isMissing();
tor = tf.tor;
filetype = UNKNOWN;
}
Uint32 ChunkManager::previewChunkRangeSize(const TorrentFile & file) const
{
if (!file.isMultimedia())
return 0;
if (file.getFirstChunk() == file.getLastChunk())
return 1;
Uint32 preview_size = 0;
if (file.isVideo())
preview_size = preview_size_video;
else
preview_size = preview_size_audio;
Uint32 nchunks = preview_size / tor.getChunkSize();
if (nchunks == 0)
nchunks = 1;
return nchunks;
}