diff --git a/src/lib/openjp2/j2k.c b/src/lib/openjp2/j2k.c index bcecb4b1..2c7da6f0 100644 --- a/src/lib/openjp2/j2k.c +++ b/src/lib/openjp2/j2k.c @@ -4964,8 +4964,14 @@ static OPJ_BOOL opj_j2k_read_sod(opj_j2k_t *p_j2k, /* Check enough bytes left in stream before allocation */ if ((OPJ_OFF_T)p_j2k->m_specific_param.m_decoder.m_sot_length > opj_stream_get_number_byte_left(p_stream)) { - opj_event_msg(p_manager, EVT_WARNING, - "Tile part length size inconsistent with stream length\n"); + if(p_j2k->m_cp.strict) { + opj_event_msg(p_manager, EVT_ERROR, + "Tile part length size inconsistent with stream length\n"); + return OPJ_FALSE; + } else { + opj_event_msg(p_manager, EVT_WARNING, + "Tile part length size inconsistent with stream length\n"); + } } if (p_j2k->m_specific_param.m_decoder.m_sot_length > UINT_MAX - OPJ_COMMON_CBLK_DATA_EXTRA) { @@ -6684,6 +6690,7 @@ void opj_j2k_setup_decoder(opj_j2k_t *j2k, opj_dparameters_t *parameters) if (j2k && parameters) { j2k->m_cp.m_specific_param.m_dec.m_layer = parameters->cp_layer; j2k->m_cp.m_specific_param.m_dec.m_reduce = parameters->cp_reduce; + j2k->m_cp.strict = OPJ_TRUE; j2k->dump_state = (parameters->flags & OPJ_DPARAMETERS_DUMP_FLAG); #ifdef USE_JPWL @@ -6694,6 +6701,13 @@ void opj_j2k_setup_decoder(opj_j2k_t *j2k, opj_dparameters_t *parameters) } } +void opj_j2k_decoder_set_strict_mode(opj_j2k_t *j2k, OPJ_BOOL strict) +{ + if (j2k) { + j2k->m_cp.strict = strict; + } +} + OPJ_BOOL opj_j2k_set_threads(opj_j2k_t *j2k, OPJ_UINT32 num_threads) { /* Currently we pass the thread-pool to the tcd, so we cannot re-set it */ diff --git a/src/lib/openjp2/j2k.h b/src/lib/openjp2/j2k.h index 2b08e840..2cd8d38c 100644 --- a/src/lib/openjp2/j2k.h +++ b/src/lib/openjp2/j2k.h @@ -402,6 +402,8 @@ typedef struct opj_cp { } m_specific_param; + /** OPJ_TRUE if entire bit stream must be decoded, OPJ_FALSE if partial bitstream decoding allowed */ + OPJ_BOOL strict; /* UniPG>> */ #ifdef USE_JPWL @@ -622,6 +624,8 @@ Decoding parameters are returned in j2k->cp. */ void opj_j2k_setup_decoder(opj_j2k_t *j2k, opj_dparameters_t *parameters); +void opj_j2k_decoder_set_strict_mode(opj_j2k_t *j2k, OPJ_BOOL strict); + OPJ_BOOL opj_j2k_set_threads(opj_j2k_t *j2k, OPJ_UINT32 num_threads); /** diff --git a/src/lib/openjp2/jp2.c b/src/lib/openjp2/jp2.c index 7c065ba7..6e41f18f 100644 --- a/src/lib/openjp2/jp2.c +++ b/src/lib/openjp2/jp2.c @@ -1901,6 +1901,11 @@ void opj_jp2_setup_decoder(opj_jp2_t *jp2, opj_dparameters_t *parameters) OPJ_DPARAMETERS_IGNORE_PCLR_CMAP_CDEF_FLAG; } +void opj_jp2_decoder_set_strict_mode(opj_jp2_t *jp2, OPJ_BOOL strict) +{ + opj_j2k_decoder_set_strict_mode(jp2->j2k, strict); +} + OPJ_BOOL opj_jp2_set_threads(opj_jp2_t *jp2, OPJ_UINT32 num_threads) { return opj_j2k_set_threads(jp2->j2k, num_threads); diff --git a/src/lib/openjp2/jp2.h b/src/lib/openjp2/jp2.h index 9e7fa566..408d9037 100644 --- a/src/lib/openjp2/jp2.h +++ b/src/lib/openjp2/jp2.h @@ -235,6 +235,15 @@ Decoding parameters are returned in jp2->j2k->cp. */ void opj_jp2_setup_decoder(opj_jp2_t *jp2, opj_dparameters_t *parameters); +/** +Set the strict mode parameter. When strict mode is enabled, the entire +bitstream must be decoded or an error is returned. When it is disabled, +the decoder will decode partial bitstreams. +@param jp2 JP2 decompressor handle +@param strict JPH_TRUE for strict mode +*/ +void opj_jp2_decoder_set_strict_mode(opj_jp2_t *jp2, OPJ_BOOL strict); + /** Allocates worker threads for the compressor/decompressor. * * @param jp2 JP2 decompressor handle diff --git a/src/lib/openjp2/openjpeg.c b/src/lib/openjp2/openjpeg.c index 0c5f2d5f..de5a1d04 100644 --- a/src/lib/openjp2/openjpeg.c +++ b/src/lib/openjp2/openjpeg.c @@ -219,6 +219,10 @@ opj_codec_t* OPJ_CALLCONV opj_create_decompress(OPJ_CODEC_FORMAT p_format) l_codec->m_codec_data.m_decompression.opj_setup_decoder = (void (*)(void *, opj_dparameters_t *)) opj_j2k_setup_decoder; + l_codec->m_codec_data.m_decompression.opj_decoder_set_strict_mode = + (void (*)(void *, OPJ_BOOL)) opj_j2k_decoder_set_strict_mode; + + l_codec->m_codec_data.m_decompression.opj_read_tile_header = (OPJ_BOOL(*)(void *, OPJ_UINT32*, @@ -326,6 +330,9 @@ opj_codec_t* OPJ_CALLCONV opj_create_decompress(OPJ_CODEC_FORMAT p_format) l_codec->m_codec_data.m_decompression.opj_setup_decoder = (void (*)(void *, opj_dparameters_t *)) opj_jp2_setup_decoder; + l_codec->m_codec_data.m_decompression.opj_decoder_set_strict_mode = + (void (*)(void *, OPJ_BOOL)) opj_jp2_decoder_set_strict_mode; + l_codec->m_codec_data.m_decompression.opj_set_decode_area = (OPJ_BOOL(*)(void *, opj_image_t*, @@ -426,6 +433,26 @@ OPJ_BOOL OPJ_CALLCONV opj_setup_decoder(opj_codec_t *p_codec, return OPJ_FALSE; } + OPJ_API OPJ_BOOL OPJ_CALLCONV opj_decoder_set_strict_mode(opj_codec_t *p_codec, OPJ_BOOL strict) + { + if (p_codec) { + opj_codec_private_t * l_codec = (opj_codec_private_t *) p_codec; + + if (! l_codec->is_decompressor) { + opj_event_msg(&(l_codec->m_event_mgr), EVT_ERROR, + "Codec provided to the opj_decoder_set_strict_mode function is not a decompressor handler.\n"); + return OPJ_FALSE; + } + + l_codec->m_codec_data.m_decompression.opj_decoder_set_strict_mode(l_codec->m_codec, + strict); + return OPJ_TRUE; + } + return OPJ_FALSE; + + } + + OPJ_BOOL OPJ_CALLCONV opj_read_header(opj_stream_t *p_stream, opj_codec_t *p_codec, opj_image_t **p_image) diff --git a/src/lib/openjp2/openjpeg.h b/src/lib/openjp2/openjpeg.h index 8829963f..c24ee933 100644 --- a/src/lib/openjp2/openjpeg.h +++ b/src/lib/openjp2/openjpeg.h @@ -1339,6 +1339,19 @@ OPJ_API void OPJ_CALLCONV opj_set_default_decoder_parameters( OPJ_API OPJ_BOOL OPJ_CALLCONV opj_setup_decoder(opj_codec_t *p_codec, opj_dparameters_t *parameters); +/** + * Set strict decoding parameter for this decoder. If strict decoding is enabled, partial bit + * streams will fail to decode. If strict decoding is disabled, the decoder will decode partial + * bitstreams as much as possible without erroring + * + * @param p_codec decompressor handler + * @param strict OBJ_TRUE to enable strict decoding, OBJ_FALSE to disable + * + * @return true if the decoder is correctly set + */ + + OPJ_API OPJ_BOOL OPJ_CALLCONV opj_decoder_set_strict_mode(opj_codec_t *p_codec, OPJ_BOOL strict); + /** * Allocates worker threads for the compressor/decompressor. * diff --git a/src/lib/openjp2/opj_codec.h b/src/lib/openjp2/opj_codec.h index 8a8af911..7cff6708 100644 --- a/src/lib/openjp2/opj_codec.h +++ b/src/lib/openjp2/opj_codec.h @@ -90,6 +90,9 @@ typedef struct opj_codec_private { /** Setup decoder function handler */ void (*opj_setup_decoder)(void * p_codec, opj_dparameters_t * p_param); + /** Strict mode function handler */ + void (*opj_decoder_set_strict_mode)(void * p_codec, OPJ_BOOL strict); + /** Set decode area function handler */ OPJ_BOOL(*opj_set_decode_area)(void * p_codec, opj_image_t * p_image, diff --git a/src/lib/openjp2/t2.c b/src/lib/openjp2/t2.c index b72c2e5a..7169750b 100644 --- a/src/lib/openjp2/t2.c +++ b/src/lib/openjp2/t2.c @@ -1377,7 +1377,7 @@ static OPJ_BOOL opj_t2_read_packet_data(opj_t2_t* p_t2, opj_tcd_cblk_dec_t* l_cblk = 00; opj_tcd_resolution_t* l_res = &p_tile->comps[p_pi->compno].resolutions[p_pi->resno]; - OPJ_UINT32 partial_buffer = 0; + OPJ_BOOL partial_buffer = OPJ_FALSE; OPJ_ARG_NOT_USED(p_t2); OPJ_ARG_NOT_USED(pack_info); @@ -1427,24 +1427,32 @@ static OPJ_BOOL opj_t2_read_packet_data(opj_t2_t* p_t2, (OPJ_SIZE_T)l_current_data) || (l_current_data + l_seg->newlen > p_src_data + p_max_length) || (partial_buffer)) { - opj_event_msg(p_manager, EVT_WARNING, - "read: segment too long (%d) with max (%d) for codeblock %d (p=%d, b=%d, r=%d, c=%d)\n", - l_seg->newlen, p_max_length, cblkno, p_pi->precno, bandno, p_pi->resno, - p_pi->compno); - // skip this codeblock since it is a partial read - partial_buffer = 1; - l_cblk->numchunks = 0; + if(p_t2->cp->strict) { + opj_event_msg(p_manager, EVT_WARNING, + "read: segment too long (%d) with max (%d) for codeblock %d (p=%d, b=%d, r=%d, c=%d)\n", + l_seg->newlen, p_max_length, cblkno, p_pi->precno, bandno, p_pi->resno, + p_pi->compno); + return OPJ_FALSE; + } else { + opj_event_msg(p_manager, EVT_WARNING, + "read: segment too long (%d) with max (%d) for codeblock %d (p=%d, b=%d, r=%d, c=%d)\n", + l_seg->newlen, p_max_length, cblkno, p_pi->precno, bandno, p_pi->resno, + p_pi->compno); + // skip this codeblock since it is a partial read + partial_buffer = OPJ_TRUE; + l_cblk->numchunks = 0; - l_seg->numpasses += l_seg->numnewpasses; - l_cblk->numnewpasses -= l_seg->numnewpasses; - if (l_cblk->numnewpasses > 0) { - ++l_seg; - ++l_cblk->numsegs; + l_seg->numpasses += l_seg->numnewpasses; + l_cblk->numnewpasses -= l_seg->numnewpasses; + if (l_cblk->numnewpasses > 0) { + ++l_seg; + ++l_cblk->numsegs; + } + if(l_cblk->numnewpasses > 0) { + break; + } + continue; } - if(l_cblk->numnewpasses > 0) { - break; - } - continue; } #ifdef USE_JPWL @@ -1573,11 +1581,18 @@ static OPJ_BOOL opj_t2_skip_packet_data(opj_t2_t* p_t2, /* Check possible overflow then size */ if (((*p_data_read + l_seg->newlen) < (*p_data_read)) || ((*p_data_read + l_seg->newlen) > p_max_length)) { - opj_event_msg(p_manager, EVT_ERROR, - "skip: segment too long (%d) with max (%d) for codeblock %d (p=%d, b=%d, r=%d, c=%d)\n", - l_seg->newlen, p_max_length, cblkno, p_pi->precno, bandno, p_pi->resno, - p_pi->compno); - //return OPJ_FALSE; + if(p_t2->cp->strict) { + opj_event_msg(p_manager, EVT_ERROR, + "skip: segment too long (%d) with max (%d) for codeblock %d (p=%d, b=%d, r=%d, c=%d)\n", + l_seg->newlen, p_max_length, cblkno, p_pi->precno, bandno, p_pi->resno, + p_pi->compno); + return OPJ_FALSE; + } else { + opj_event_msg(p_manager, EVT_WARNING, + "skip: segment too long (%d) with max (%d) for codeblock %d (p=%d, b=%d, r=%d, c=%d)\n", + l_seg->newlen, p_max_length, cblkno, p_pi->precno, bandno, p_pi->resno, + p_pi->compno); + } } #ifdef USE_JPWL