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InputStream: make offset_type unsigned

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This commit is contained in:
Max Kellermann 2014-08-18 09:47:23 +02:00
parent dfa53cb88e
commit 181edf4b53
5 changed files with 5 additions and 14 deletions
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3
src/decoder/plugins/OpusDecoderPlugin.cxx
View File

@ -187,8 +187,6 @@ LoadEOSPacket(InputStream &is, Decoder *decoder, int serialno,
return -1;
const auto old_offset = is.GetOffset();
if (old_offset < 0)
return -1;
/* create temporary Ogg objects for seeking and parsing the
EOS packet */
@ -335,7 +333,6 @@ MPDOpusDecoder::Seek(OggSyncState &oy, double where_s)
assert(eos_granulepos > 0);
assert(input_stream.IsSeekable());
assert(input_stream.KnownSize());
assert(input_stream.GetOffset() >= 0);
const ogg_int64_t where_granulepos(where_s * opus_sample_rate);

3
src/input/AsyncInputStream.cxx
View File

@ -116,9 +116,6 @@ AsyncInputStream::Seek(offset_type new_offset, Error &error)
if (!IsSeekable())
return false;
if (new_offset < 0)
return false;
/* check if we can fast-forward the buffer */
while (new_offset > offset) {

5
src/input/InputStream.hxx
View File

@ -35,7 +35,7 @@ struct Tag;
class InputStream {
public:
typedef int64_t offset_type;
typedef uint64_t offset_type;
private:
/**
@ -236,8 +236,6 @@ public:
void AddOffset(offset_type delta) {
assert(ready);
assert(offset >= 0);
assert(delta >= 0);
offset += delta;
}
@ -253,7 +251,6 @@ public:
offset_type GetRest() const {
assert(ready);
assert(KnownSize());
assert(offset >= 0);
return size - offset;
}

2
src/input/plugins/CdioParanoiaInputPlugin.cxx
View File

@ -274,7 +274,7 @@ input_cdio_open(const char *uri,
bool
CdioParanoiaInputStream::Seek(offset_type new_offset, Error &error)
{
if (new_offset < 0 || new_offset > size) {
if (new_offset > size) {
error.Format(cdio_domain, "Invalid offset to seek %ld (%ld)",
(long int)new_offset, (long int)size);
return false;

6
src/input/plugins/FileInputPlugin.cxx
View File

@ -101,13 +101,13 @@ input_file_open(const char *filename,
bool
FileInputStream::Seek(offset_type new_offset, Error &error)
{
new_offset = (offset_type)lseek(fd, (off_t)new_offset, SEEK_SET);
if (new_offset < 0) {
auto result = lseek(fd, (off_t)new_offset, SEEK_SET);
if (result < 0) {
error.SetErrno("Failed to seek");
return false;
}
offset = new_offset;
offset = (offset_type)result;
return true;
}