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Second part of FS#10832 by Juliusz Chroboczek. Ignore empty mdat chunks in mp4 files.

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@24148 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Michael Giacomelli 2010-01-02 21:02:13 +00:00
parent 008c368c87
commit ce8640d7b8
2 changed files with 7 additions and 4 deletions
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7
apps/codecs/libm4a/demux.c
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@ -771,12 +771,11 @@ int qtmovie_read(stream_t *file, demux_res_t *demux_res)
}
break;
case MAKEFOURCC('m','d','a','t'):
read_chunk_mdat(&qtmovie, chunk_len);
/* Keep track of start of stream in file - used for seeking */
qtmovie.res->mdat_offset=stream_tell(qtmovie.stream);
/* There can be empty mdats before the real one. If so, skip them */
if (qtmovie.res->mdat_len == 0)
if (chunk_len == 8)
break;
read_chunk_mdat(&qtmovie, chunk_len);
qtmovie.res->mdat_offset=stream_tell(qtmovie.stream);
/* If we've already seen the format, assume there's nothing
interesting after the mdat chunk (the file is "streamable").
This avoids having to seek, which might cause rebuffering. */