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[trunk] WIP: add a set decoded resolution factor function and update j2k_to_image help about decoded region

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This commit is contained in:
Mickael Savinaud
2011-11-17 14:21:11 +00:00
parent b41cad58cb
commit 8026d0b2e7
8 changed files with 75 additions and 2 deletions
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31
libopenjpeg/openjpeg.c
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@@ -85,6 +85,10 @@ typedef struct opj_decompression
opj_image_t *p_image,
struct opj_event_mgr * p_manager,
OPJ_UINT32 tile_index);
/** Set the decoded resolution factor */
opj_bool (*opj_set_decoded_resolution_factor) (void * p_codec, OPJ_UINT32 res_factor, struct opj_event_mgr * p_manager);
}opj_decompression_t;
/**
@@ -299,6 +303,10 @@ opj_codec_t* OPJ_CALLCONV opj_create_decompress_v2(OPJ_CODEC_FORMAT p_format)
struct opj_event_mgr * p_manager,
OPJ_UINT32 tile_index)) j2k_get_tile;
l_info->m_codec_data.m_decompression.opj_set_decoded_resolution_factor = (opj_bool (*) (void * p_codec,
OPJ_UINT32 res_factor,
struct opj_event_mgr * p_manager)) j2k_set_decoded_resolution_factor;
l_info->m_codec = j2k_create_decompress_v2();
if (! l_info->m_codec) {
@@ -357,6 +365,10 @@ opj_codec_t* OPJ_CALLCONV opj_create_decompress_v2(OPJ_CODEC_FORMAT p_format)
struct opj_event_mgr * p_manager,
OPJ_UINT32 tile_index)) jp2_get_tile;
l_info->m_codec_data.m_decompression.opj_set_decoded_resolution_factor = (opj_bool (*) (void * p_codec,
OPJ_UINT32 res_factor,
opj_event_mgr_t * p_manager)) jp2_set_decoded_resolution_factor;
l_info->m_codec = jp2_create(OPJ_TRUE);
if (! l_info->m_codec) {
@@ -1002,3 +1014,22 @@ opj_bool OPJ_CALLCONV opj_get_decoded_tile( opj_codec_t *p_codec,
return OPJ_FALSE;
}
/*
*
*
*/
opj_bool OPJ_CALLCONV opj_set_decoded_resolution_factor(opj_codec_t *p_codec, OPJ_UINT32 res_factor)
{
opj_codec_private_t * l_codec = (opj_codec_private_t *) p_codec;
if ( !l_codec ){
fprintf(stderr, "[ERROR] Input parameters of the setup_decoder function are incorrect.\n");
return OPJ_FALSE;
}
l_codec->m_codec_data.m_decompression.opj_set_decoded_resolution_factor(l_codec->m_codec, res_factor, l_codec->m_event_mgr);
return OPJ_TRUE;
}