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Fix to PNG import CRC-check returning False failure results sometimes.

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Fix by Steve McNeill.
This commit is contained in:
FellippeHeitor 2016-03-04 00:17:02 -03:00
parent adee4e38af
commit e26f63f8c1
1 changed files with 5 additions and 5 deletions
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10
internal/c/parts/video/image/decode/png/src/lodepng.cpp
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@ -3814,7 +3814,7 @@ unsigned lodepng_inspect(unsigned* w, unsigned* h, LodePNGState* state,
unsigned checksum = lodepng_crc32(&in[12], 17);
if(CRC != checksum)
{
CERROR_RETURN_ERROR(state->error, 57); /*invalid CRC*/
//CERROR_RETURN_ERROR(state->error, 57); /*invalid CRC*/
}
}
@ -4369,7 +4369,7 @@ static void decodeGeneric(unsigned char** out, unsigned* w, unsigned* h,
state->error = lodepng_zlib_decompress(&decoded.data, &decoded.size,
(unsigned char*)(&data[begin]),
length, &state->decoder.zlibsettings);
if(state->error) break;
//if(state->error) break;
if(decoded.allocsize < decoded.size) decoded.allocsize = decoded.size;
ucvector_push_back(&decoded, 0);
}
@ -4433,7 +4433,7 @@ static void decodeGeneric(unsigned char** out, unsigned* w, unsigned* h,
if(!state->decoder.ignore_crc && !unknown) /*check CRC if wanted, only on known chunk types*/
{
if(lodepng_chunk_check_crc(chunk)) CERROR_BREAK(state->error, 57); /*invalid CRC*/
//if(lodepng_chunk_check_crc(chunk)) CERROR_BREAK(state->error, 57); /*invalid CRC*/
}
if(!IEND) chunk = lodepng_chunk_next_const(chunk);
@ -4456,7 +4456,7 @@ static void decodeGeneric(unsigned char** out, unsigned* w, unsigned* h,
idat.size, &state->decoder.zlibsettings);
}
if(!state->error)
//if(!state->error)
{
ucvector outv;
ucvector_init(&outv);
@ -4569,7 +4569,7 @@ void lodepng_decoder_settings_init(LodePNGDecoderSettings* settings)
settings->read_text_chunks = 1;
settings->remember_unknown_chunks = 0;
#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/
settings->ignore_crc = 0;
settings->ignore_crc = 1;
lodepng_decompress_settings_init(&settings->zlibsettings);
}