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return error if read failed
Originally committed as revision 17173 to svn://svn.ffmpeg.org/ffmpeg/trunk
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@ -30,7 +30,8 @@ int64_t ffm_read_write_index(int fd)
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uint8_t buf[8];
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lseek(fd, 8, SEEK_SET);
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read(fd, buf, 8);
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if (read(fd, buf, 8) != 8)
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return AVERROR(EIO);
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return AV_RB64(buf);
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}
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