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decoder/faad: check InputStream::KnownSize()

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Replace the bogus GetSize() check and call GetSize() only when
necessary.
This commit is contained in:
Max Kellermann 2014-08-19 20:26:12 +02:00
parent 7a929fcd27
commit e88524f274
1 changed files with 6 additions and 2 deletions
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8
src/decoder/plugins/FaadDecoderPlugin.cxx
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@ -112,8 +112,7 @@ adts_song_duration(DecoderBuffer *buffer)
{ {
const InputStream &is = decoder_buffer_get_stream(buffer); const InputStream &is = decoder_buffer_get_stream(buffer);
const bool estimate = !is.CheapSeeking(); const bool estimate = !is.CheapSeeking();
const auto file_size = is.GetSize(); if (estimate && !is.KnownSize())
if (estimate && file_size <= 0)
return -1; return -1;
unsigned sample_rate = 0; unsigned sample_rate = 0;
@ -149,6 +148,7 @@ adts_song_duration(DecoderBuffer *buffer)
if (offset <= 0) if (offset <= 0)
return -1; return -1;
const auto file_size = is.GetSize();
frames = (frames * file_size) / offset; frames = (frames * file_size) / offset;
break; break;
} }
@ -202,6 +202,10 @@ faad_song_duration(DecoderBuffer *buffer, InputStream &is)
return song_length; return song_length;
} else if (data.size >= 5 && memcmp(data.data, "ADIF", 4) == 0) { } else if (data.size >= 5 && memcmp(data.data, "ADIF", 4) == 0) {
/* obtain the duration from the ADIF header */ /* obtain the duration from the ADIF header */
if (!is.KnownSize())
return -1;
size_t skip_size = (data.data[4] & 0x80) ? 9 : 0; size_t skip_size = (data.data[4] & 0x80) ? 9 : 0;
if (8 + skip_size > data.size) if (8 + skip_size > data.size)