[trunk] move functions in openjpeg.c in two parts compression vs decompression
This commit is contained in:
Mickael Savinaud
parent
5d0ace0577
commit
a6d76b3c48
@ -479,6 +479,222 @@ opj_bool OPJ_CALLCONV opj_setup_decoder(opj_codec_t *p_codec,
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return OPJ_FALSE;
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return OPJ_FALSE;
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}
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}
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opj_bool OPJ_CALLCONV opj_read_header ( opj_stream_t *p_stream,
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opj_codec_t *p_codec,
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opj_image_t **p_image )
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{
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if (p_codec && p_stream) {
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opj_codec_private_t* l_codec = (opj_codec_private_t*) p_codec;
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opj_stream_private_t* l_stream = (opj_stream_private_t*) p_stream;
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if(! l_codec->is_decompressor) {
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opj_event_msg_v2(&(l_codec->m_event_mgr), EVT_ERROR, "Codec provided to the opj_read_header function is not a decompressor handler.\n");
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return OPJ_FALSE;
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}
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return l_codec->m_codec_data.m_decompression.opj_read_header( l_stream,
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l_codec->m_codec,
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p_image,
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&(l_codec->m_event_mgr) );
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}
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return OPJ_FALSE;
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}
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/*
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*
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*
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*/
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opj_bool OPJ_CALLCONV opj_decode( opj_codec_t *p_codec,
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opj_stream_t *p_stream,
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opj_image_t* p_image)
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{
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if (p_codec && p_stream) {
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opj_codec_private_t * l_codec = (opj_codec_private_t *) p_codec;
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opj_stream_private_t * l_stream = (opj_stream_private_t *) p_stream;
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if (! l_codec->is_decompressor) {
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return OPJ_FALSE;
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}
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return l_codec->m_codec_data.m_decompression.opj_decode(l_codec->m_codec,
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l_stream,
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p_image,
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&(l_codec->m_event_mgr) );
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}
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return OPJ_FALSE;
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}
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/**
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* Sets the given area to be decoded. This function should be called right after opj_read_header and before any tile header reading.
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*
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* @param p_codec the jpeg2000 codec.
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* @param p_start_x the left position of the rectangle to decode (in image coordinates).
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* @param p_end_x the right position of the rectangle to decode (in image coordinates).
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* @param p_start_y the up position of the rectangle to decode (in image coordinates).
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* @param p_end_y the bottom position of the rectangle to decode (in image coordinates).
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*
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* @return true if the area could be set.
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*/
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opj_bool OPJ_CALLCONV opj_set_decode_area( opj_codec_t *p_codec,
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opj_image_t* p_image,
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OPJ_INT32 p_start_x, OPJ_INT32 p_start_y,
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OPJ_INT32 p_end_x, OPJ_INT32 p_end_y
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)
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{
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if (p_codec) {
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opj_codec_private_t * l_codec = (opj_codec_private_t *) p_codec;
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if (! l_codec->is_decompressor) {
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return OPJ_FALSE;
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}
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return l_codec->m_codec_data.m_decompression.opj_set_decode_area( l_codec->m_codec,
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p_image,
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p_start_x, p_start_y,
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p_end_x, p_end_y,
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&(l_codec->m_event_mgr) );
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}
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return OPJ_FALSE;
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}
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/**
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* Reads a tile header. This function is compulsory and allows one to know the size of the tile thta will be decoded.
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* The user may need to refer to the image got by opj_read_header to understand the size being taken by the tile.
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*
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* @param p_codec the jpeg2000 codec.
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* @param p_tile_index pointer to a value that will hold the index of the tile being decoded, in case of success.
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* @param p_data_size pointer to a value that will hold the maximum size of the decoded data, in case of success. In case
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* of truncated codestreams, the actual number of bytes decoded may be lower. The computation of the size is the same
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* as depicted in opj_write_tile.
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* @param p_tile_x0 pointer to a value that will hold the x0 pos of the tile (in the image).
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* @param p_tile_y0 pointer to a value that will hold the y0 pos of the tile (in the image).
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* @param p_tile_x1 pointer to a value that will hold the x1 pos of the tile (in the image).
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* @param p_tile_y1 pointer to a value that will hold the y1 pos of the tile (in the image).
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* @param p_nb_comps pointer to a value that will hold the number of components in the tile.
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* @param p_should_go_on pointer to a boolean that will hold the fact that the decoding should go on. In case the
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* codestream is over at the time of the call, the value will be set to false. The user should then stop
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* the decoding.
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* @param p_stream the stream to decode.
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* @return true if the tile header could be decoded. In case the decoding should end, the returned value is still true.
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* returning false may be the result of a shortage of memory or an internal error.
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*/
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opj_bool OPJ_CALLCONV opj_read_tile_header( opj_codec_t *p_codec,
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opj_stream_t * p_stream,
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OPJ_UINT32 * p_tile_index,
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OPJ_UINT32 * p_data_size,
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OPJ_INT32 * p_tile_x0, OPJ_INT32 * p_tile_y0,
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OPJ_INT32 * p_tile_x1, OPJ_INT32 * p_tile_y1,
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OPJ_UINT32 * p_nb_comps,
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opj_bool * p_should_go_on)
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{
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if (p_codec && p_stream && p_data_size && p_tile_index) {
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opj_codec_private_t * l_codec = (opj_codec_private_t *) p_codec;
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opj_stream_private_t * l_stream = (opj_stream_private_t *) p_stream;
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if (! l_codec->is_decompressor) {
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return OPJ_FALSE;
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}
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return l_codec->m_codec_data.m_decompression.opj_read_tile_header( l_codec->m_codec,
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p_tile_index,
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p_data_size,
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p_tile_x0, p_tile_y0,
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p_tile_x1, p_tile_y1,
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p_nb_comps,
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p_should_go_on,
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l_stream,
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&(l_codec->m_event_mgr));
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}
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return OPJ_FALSE;
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}
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/**
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* Reads a tile data. This function is compulsory and allows one to decode tile data. opj_read_tile_header should be called before.
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* The user may need to refer to the image got by opj_read_header to understand the size being taken by the tile.
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*
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* @param p_codec the jpeg2000 codec.
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* @param p_tile_index the index of the tile being decoded, this should be the value set by opj_read_tile_header.
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* @param p_data pointer to a memory block that will hold the decoded data.
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* @param p_data_size size of p_data. p_data_size should be bigger or equal to the value set by opj_read_tile_header.
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* @param p_stream the stream to decode.
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*
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* @return true if the data could be decoded.
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*/
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opj_bool OPJ_CALLCONV opj_decode_tile_data( opj_codec_t *p_codec,
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OPJ_UINT32 p_tile_index,
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OPJ_BYTE * p_data,
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OPJ_UINT32 p_data_size,
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opj_stream_t *p_stream
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)
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{
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if (p_codec && p_data && p_stream) {
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opj_codec_private_t * l_codec = (opj_codec_private_t *) p_codec;
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opj_stream_private_t * l_stream = (opj_stream_private_t *) p_stream;
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if (! l_codec->is_decompressor) {
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return OPJ_FALSE;
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}
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return l_codec->m_codec_data.m_decompression.opj_decode_tile_data( l_codec->m_codec,
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p_tile_index,
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p_data,
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p_data_size,
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l_stream,
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&(l_codec->m_event_mgr) );
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}
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return OPJ_FALSE;
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}
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/*
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*
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*
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*/
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opj_bool OPJ_CALLCONV opj_get_decoded_tile( opj_codec_t *p_codec,
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opj_stream_t *p_stream,
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opj_image_t *p_image,
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OPJ_UINT32 tile_index)
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{
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if (p_codec && p_stream) {
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opj_codec_private_t * l_codec = (opj_codec_private_t *) p_codec;
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opj_stream_private_t * l_stream = (opj_stream_private_t *) p_stream;
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if (! l_codec->is_decompressor) {
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return OPJ_FALSE;
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}
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return l_codec->m_codec_data.m_decompression.opj_get_decoded_tile( l_codec->m_codec,
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l_stream,
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p_image,
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&(l_codec->m_event_mgr),
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tile_index);
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}
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return OPJ_FALSE;
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}
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/*
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*
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*
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*/
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opj_bool OPJ_CALLCONV opj_set_decoded_resolution_factor(opj_codec_t *p_codec,
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OPJ_UINT32 res_factor )
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{
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opj_codec_private_t * l_codec = (opj_codec_private_t *) p_codec;
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if ( !l_codec ){
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fprintf(stderr, "[ERROR] Input parameters of the setup_decoder function are incorrect.\n");
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return OPJ_FALSE;
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}
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l_codec->m_codec_data.m_decompression.opj_set_decoded_resolution_factor(l_codec->m_codec,
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res_factor,
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&(l_codec->m_event_mgr) );
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return OPJ_TRUE;
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}
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/* ---------------------------------------------------------------------- */
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/* ---------------------------------------------------------------------- */
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/* COMPRESSION FUNCTIONS*/
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/* COMPRESSION FUNCTIONS*/
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@ -710,6 +926,88 @@ opj_bool OPJ_CALLCONV opj_end_compress (opj_codec_t *p_codec,
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}
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}
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/*
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*
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*
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*/
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opj_bool OPJ_CALLCONV opj_end_decompress ( opj_codec_t *p_codec,
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opj_stream_t *p_stream)
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{
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if (p_codec && p_stream) {
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opj_codec_private_t * l_codec = (opj_codec_private_t *) p_codec;
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opj_stream_private_t * l_stream = (opj_stream_private_t *) p_stream;
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if (! l_codec->is_decompressor) {
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return OPJ_FALSE;
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}
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return l_codec->m_codec_data.m_decompression.opj_end_decompress(l_codec->m_codec,
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l_stream,
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&(l_codec->m_event_mgr) );
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}
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return OPJ_FALSE;
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}
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opj_bool OPJ_CALLCONV opj_set_MCT(opj_cparameters_t *parameters,OPJ_FLOAT32 * pEncodingMatrix,OPJ_INT32 * p_dc_shift,OPJ_UINT32 pNbComp)
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{
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OPJ_UINT32 l_matrix_size = pNbComp * pNbComp * sizeof(OPJ_FLOAT32);
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OPJ_UINT32 l_dc_shift_size = pNbComp * sizeof(OPJ_INT32);
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OPJ_UINT32 l_mct_total_size = l_matrix_size + l_dc_shift_size;
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/* add MCT capability */
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int rsiz = (int)parameters->cp_rsiz | (int)MCT;
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parameters->cp_rsiz = (OPJ_RSIZ_CAPABILITIES)rsiz;
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parameters->irreversible = 1;
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/* use array based MCT */
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parameters->tcp_mct = 2;
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parameters->mct_data = opj_malloc(l_mct_total_size);
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if (! parameters->mct_data) {
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return OPJ_FALSE;
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}
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memcpy(parameters->mct_data,pEncodingMatrix,l_matrix_size);
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memcpy(((OPJ_BYTE *) parameters->mct_data) + l_matrix_size,p_dc_shift,l_dc_shift_size);
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return OPJ_TRUE;
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}
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/**
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* Writes a tile with the given data.
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*
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* @param p_compressor the jpeg2000 codec.
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* @param p_tile_index the index of the tile to write. At the moment, the tiles must be written from 0 to n-1 in sequence.
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* @param p_data pointer to the data to write. Data is arranged in sequence, data_comp0, then data_comp1, then ... NO INTERLEAVING should be set.
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* @param p_data_size this value os used to make sure the data being written is correct. The size must be equal to the sum for each component of tile_width * tile_height * component_size. component_size can be 1,2 or 4 bytes,
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* depending on the precision of the given component.
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* @param p_stream the stream to write data to.
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*/
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opj_bool OPJ_CALLCONV opj_write_tile ( opj_codec_t *p_codec,
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OPJ_UINT32 p_tile_index,
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OPJ_BYTE * p_data,
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OPJ_UINT32 p_data_size,
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opj_stream_t *p_stream )
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{
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if (p_codec && p_stream && p_data) {
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opj_codec_private_t * l_codec = (opj_codec_private_t *) p_codec;
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opj_stream_private_t * l_stream = (opj_stream_private_t *) p_stream;
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if (l_codec->is_decompressor) {
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return OPJ_FALSE;
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}
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return l_codec->m_codec_data.m_compression.opj_write_tile( l_codec->m_codec,
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p_tile_index,
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p_data,
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p_data_size,
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l_stream,
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&(l_codec->m_event_mgr) );
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}
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return OPJ_FALSE;
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}
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/* DEPRECATED */
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/* DEPRECATED */
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@ -730,27 +1028,7 @@ void OPJ_CALLCONV opj_destroy_cstr_info(opj_codestream_info_t *cstr_info) {
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}
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}
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opj_bool OPJ_CALLCONV opj_read_header ( opj_stream_t *p_stream,
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opj_codec_t *p_codec,
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opj_image_t **p_image )
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{
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if (p_codec && p_stream) {
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opj_codec_private_t* l_codec = (opj_codec_private_t*) p_codec;
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opj_stream_private_t* l_stream = (opj_stream_private_t*) p_stream;
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if(! l_codec->is_decompressor) {
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opj_event_msg_v2(&(l_codec->m_event_mgr), EVT_ERROR, "Codec provided to the opj_read_header function is not a decompressor handler.\n");
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return OPJ_FALSE;
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}
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return l_codec->m_codec_data.m_decompression.opj_read_header( l_stream,
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l_codec->m_codec,
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p_image,
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&(l_codec->m_event_mgr) );
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}
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return OPJ_FALSE;
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}
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void OPJ_CALLCONV opj_destroy_codec(opj_codec_t *p_codec)
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void OPJ_CALLCONV opj_destroy_codec(opj_codec_t *p_codec)
|
||||||
@ -770,126 +1048,7 @@ void OPJ_CALLCONV opj_destroy_codec(opj_codec_t *p_codec)
|
|||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
/**
|
|
||||||
* Sets the given area to be decoded. This function should be called right after opj_read_header and before any tile header reading.
|
|
||||||
*
|
|
||||||
* @param p_codec the jpeg2000 codec.
|
|
||||||
* @param p_start_x the left position of the rectangle to decode (in image coordinates).
|
|
||||||
* @param p_end_x the right position of the rectangle to decode (in image coordinates).
|
|
||||||
* @param p_start_y the up position of the rectangle to decode (in image coordinates).
|
|
||||||
* @param p_end_y the bottom position of the rectangle to decode (in image coordinates).
|
|
||||||
*
|
|
||||||
* @return true if the area could be set.
|
|
||||||
*/
|
|
||||||
opj_bool OPJ_CALLCONV opj_set_decode_area( opj_codec_t *p_codec,
|
|
||||||
opj_image_t* p_image,
|
|
||||||
OPJ_INT32 p_start_x, OPJ_INT32 p_start_y,
|
|
||||||
OPJ_INT32 p_end_x, OPJ_INT32 p_end_y
|
|
||||||
)
|
|
||||||
{
|
|
||||||
if (p_codec) {
|
|
||||||
opj_codec_private_t * l_codec = (opj_codec_private_t *) p_codec;
|
|
||||||
|
|
||||||
if (! l_codec->is_decompressor) {
|
|
||||||
return OPJ_FALSE;
|
|
||||||
}
|
|
||||||
|
|
||||||
return l_codec->m_codec_data.m_decompression.opj_set_decode_area( l_codec->m_codec,
|
|
||||||
p_image,
|
|
||||||
p_start_x, p_start_y,
|
|
||||||
p_end_x, p_end_y,
|
|
||||||
&(l_codec->m_event_mgr) );
|
|
||||||
}
|
|
||||||
return OPJ_FALSE;
|
|
||||||
}
|
|
||||||
|
|
||||||
/**
|
|
||||||
* Reads a tile header. This function is compulsory and allows one to know the size of the tile thta will be decoded.
|
|
||||||
* The user may need to refer to the image got by opj_read_header to understand the size being taken by the tile.
|
|
||||||
*
|
|
||||||
* @param p_codec the jpeg2000 codec.
|
|
||||||
* @param p_tile_index pointer to a value that will hold the index of the tile being decoded, in case of success.
|
|
||||||
* @param p_data_size pointer to a value that will hold the maximum size of the decoded data, in case of success. In case
|
|
||||||
* of truncated codestreams, the actual number of bytes decoded may be lower. The computation of the size is the same
|
|
||||||
* as depicted in opj_write_tile.
|
|
||||||
* @param p_tile_x0 pointer to a value that will hold the x0 pos of the tile (in the image).
|
|
||||||
* @param p_tile_y0 pointer to a value that will hold the y0 pos of the tile (in the image).
|
|
||||||
* @param p_tile_x1 pointer to a value that will hold the x1 pos of the tile (in the image).
|
|
||||||
* @param p_tile_y1 pointer to a value that will hold the y1 pos of the tile (in the image).
|
|
||||||
* @param p_nb_comps pointer to a value that will hold the number of components in the tile.
|
|
||||||
* @param p_should_go_on pointer to a boolean that will hold the fact that the decoding should go on. In case the
|
|
||||||
* codestream is over at the time of the call, the value will be set to false. The user should then stop
|
|
||||||
* the decoding.
|
|
||||||
* @param p_stream the stream to decode.
|
|
||||||
* @return true if the tile header could be decoded. In case the decoding should end, the returned value is still true.
|
|
||||||
* returning false may be the result of a shortage of memory or an internal error.
|
|
||||||
*/
|
|
||||||
opj_bool OPJ_CALLCONV opj_read_tile_header( opj_codec_t *p_codec,
|
|
||||||
opj_stream_t * p_stream,
|
|
||||||
OPJ_UINT32 * p_tile_index,
|
|
||||||
OPJ_UINT32 * p_data_size,
|
|
||||||
OPJ_INT32 * p_tile_x0, OPJ_INT32 * p_tile_y0,
|
|
||||||
OPJ_INT32 * p_tile_x1, OPJ_INT32 * p_tile_y1,
|
|
||||||
OPJ_UINT32 * p_nb_comps,
|
|
||||||
opj_bool * p_should_go_on)
|
|
||||||
{
|
|
||||||
if (p_codec && p_stream && p_data_size && p_tile_index) {
|
|
||||||
opj_codec_private_t * l_codec = (opj_codec_private_t *) p_codec;
|
|
||||||
opj_stream_private_t * l_stream = (opj_stream_private_t *) p_stream;
|
|
||||||
|
|
||||||
if (! l_codec->is_decompressor) {
|
|
||||||
return OPJ_FALSE;
|
|
||||||
}
|
|
||||||
|
|
||||||
return l_codec->m_codec_data.m_decompression.opj_read_tile_header( l_codec->m_codec,
|
|
||||||
p_tile_index,
|
|
||||||
p_data_size,
|
|
||||||
p_tile_x0, p_tile_y0,
|
|
||||||
p_tile_x1, p_tile_y1,
|
|
||||||
p_nb_comps,
|
|
||||||
p_should_go_on,
|
|
||||||
l_stream,
|
|
||||||
&(l_codec->m_event_mgr));
|
|
||||||
}
|
|
||||||
return OPJ_FALSE;
|
|
||||||
}
|
|
||||||
|
|
||||||
/**
|
|
||||||
* Reads a tile data. This function is compulsory and allows one to decode tile data. opj_read_tile_header should be called before.
|
|
||||||
* The user may need to refer to the image got by opj_read_header to understand the size being taken by the tile.
|
|
||||||
*
|
|
||||||
* @param p_codec the jpeg2000 codec.
|
|
||||||
* @param p_tile_index the index of the tile being decoded, this should be the value set by opj_read_tile_header.
|
|
||||||
* @param p_data pointer to a memory block that will hold the decoded data.
|
|
||||||
* @param p_data_size size of p_data. p_data_size should be bigger or equal to the value set by opj_read_tile_header.
|
|
||||||
* @param p_stream the stream to decode.
|
|
||||||
*
|
|
||||||
* @return true if the data could be decoded.
|
|
||||||
*/
|
|
||||||
opj_bool OPJ_CALLCONV opj_decode_tile_data( opj_codec_t *p_codec,
|
|
||||||
OPJ_UINT32 p_tile_index,
|
|
||||||
OPJ_BYTE * p_data,
|
|
||||||
OPJ_UINT32 p_data_size,
|
|
||||||
opj_stream_t *p_stream
|
|
||||||
)
|
|
||||||
{
|
|
||||||
if (p_codec && p_data && p_stream) {
|
|
||||||
opj_codec_private_t * l_codec = (opj_codec_private_t *) p_codec;
|
|
||||||
opj_stream_private_t * l_stream = (opj_stream_private_t *) p_stream;
|
|
||||||
|
|
||||||
if (! l_codec->is_decompressor) {
|
|
||||||
return OPJ_FALSE;
|
|
||||||
}
|
|
||||||
|
|
||||||
return l_codec->m_codec_data.m_decompression.opj_decode_tile_data( l_codec->m_codec,
|
|
||||||
p_tile_index,
|
|
||||||
p_data,
|
|
||||||
p_data_size,
|
|
||||||
l_stream,
|
|
||||||
&(l_codec->m_event_mgr) );
|
|
||||||
}
|
|
||||||
return OPJ_FALSE;
|
|
||||||
}
|
|
||||||
|
|
||||||
/*
|
/*
|
||||||
*
|
*
|
||||||
@ -972,160 +1131,9 @@ void OPJ_CALLCONV opj_destroy_cstr_index(opj_codestream_index_t **p_cstr_index)
|
|||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
/*
|
|
||||||
*
|
|
||||||
*
|
|
||||||
*/
|
|
||||||
opj_bool OPJ_CALLCONV opj_decode( opj_codec_t *p_codec,
|
|
||||||
opj_stream_t *p_stream,
|
|
||||||
opj_image_t* p_image)
|
|
||||||
{
|
|
||||||
if (p_codec && p_stream) {
|
|
||||||
opj_codec_private_t * l_codec = (opj_codec_private_t *) p_codec;
|
|
||||||
opj_stream_private_t * l_stream = (opj_stream_private_t *) p_stream;
|
|
||||||
|
|
||||||
if (! l_codec->is_decompressor) {
|
|
||||||
return OPJ_FALSE;
|
|
||||||
}
|
|
||||||
|
|
||||||
return l_codec->m_codec_data.m_decompression.opj_decode(l_codec->m_codec,
|
|
||||||
l_stream,
|
|
||||||
p_image,
|
|
||||||
&(l_codec->m_event_mgr) );
|
|
||||||
}
|
|
||||||
|
|
||||||
return OPJ_FALSE;
|
|
||||||
}
|
|
||||||
|
|
||||||
/*
|
|
||||||
*
|
|
||||||
*
|
|
||||||
*/
|
|
||||||
opj_bool OPJ_CALLCONV opj_end_decompress ( opj_codec_t *p_codec,
|
|
||||||
opj_stream_t *p_stream)
|
|
||||||
{
|
|
||||||
if (p_codec && p_stream) {
|
|
||||||
opj_codec_private_t * l_codec = (opj_codec_private_t *) p_codec;
|
|
||||||
opj_stream_private_t * l_stream = (opj_stream_private_t *) p_stream;
|
|
||||||
|
|
||||||
if (! l_codec->is_decompressor) {
|
|
||||||
return OPJ_FALSE;
|
|
||||||
}
|
|
||||||
|
|
||||||
return l_codec->m_codec_data.m_decompression.opj_end_decompress(l_codec->m_codec,
|
|
||||||
l_stream,
|
|
||||||
&(l_codec->m_event_mgr) );
|
|
||||||
}
|
|
||||||
|
|
||||||
return OPJ_FALSE;
|
|
||||||
}
|
|
||||||
|
|
||||||
/*
|
|
||||||
*
|
|
||||||
*
|
|
||||||
*/
|
|
||||||
opj_bool OPJ_CALLCONV opj_get_decoded_tile( opj_codec_t *p_codec,
|
|
||||||
opj_stream_t *p_stream,
|
|
||||||
opj_image_t *p_image,
|
|
||||||
OPJ_UINT32 tile_index)
|
|
||||||
{
|
|
||||||
if (p_codec && p_stream) {
|
|
||||||
opj_codec_private_t * l_codec = (opj_codec_private_t *) p_codec;
|
|
||||||
opj_stream_private_t * l_stream = (opj_stream_private_t *) p_stream;
|
|
||||||
|
|
||||||
if (! l_codec->is_decompressor) {
|
|
||||||
return OPJ_FALSE;
|
|
||||||
}
|
|
||||||
|
|
||||||
return l_codec->m_codec_data.m_decompression.opj_get_decoded_tile( l_codec->m_codec,
|
|
||||||
l_stream,
|
|
||||||
p_image,
|
|
||||||
&(l_codec->m_event_mgr),
|
|
||||||
tile_index);
|
|
||||||
}
|
|
||||||
|
|
||||||
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;
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
opj_bool OPJ_CALLCONV opj_set_MCT(opj_cparameters_t *parameters,OPJ_FLOAT32 * pEncodingMatrix,OPJ_INT32 * p_dc_shift,OPJ_UINT32 pNbComp)
|
|
||||||
{
|
|
||||||
OPJ_UINT32 l_matrix_size = pNbComp * pNbComp * sizeof(OPJ_FLOAT32);
|
|
||||||
OPJ_UINT32 l_dc_shift_size = pNbComp * sizeof(OPJ_INT32);
|
|
||||||
OPJ_UINT32 l_mct_total_size = l_matrix_size + l_dc_shift_size;
|
|
||||||
|
|
||||||
/* add MCT capability */
|
|
||||||
int rsiz = (int)parameters->cp_rsiz | (int)MCT;
|
|
||||||
parameters->cp_rsiz = (OPJ_RSIZ_CAPABILITIES)rsiz;
|
|
||||||
parameters->irreversible = 1;
|
|
||||||
|
|
||||||
/* use array based MCT */
|
|
||||||
parameters->tcp_mct = 2;
|
|
||||||
parameters->mct_data = opj_malloc(l_mct_total_size);
|
|
||||||
if (! parameters->mct_data) {
|
|
||||||
return OPJ_FALSE;
|
|
||||||
}
|
|
||||||
|
|
||||||
memcpy(parameters->mct_data,pEncodingMatrix,l_matrix_size);
|
|
||||||
memcpy(((OPJ_BYTE *) parameters->mct_data) + l_matrix_size,p_dc_shift,l_dc_shift_size);
|
|
||||||
|
|
||||||
return OPJ_TRUE;
|
|
||||||
}
|
|
||||||
|
|
||||||
/**
|
|
||||||
* Writes a tile with the given data.
|
|
||||||
*
|
|
||||||
* @param p_compressor the jpeg2000 codec.
|
|
||||||
* @param p_tile_index the index of the tile to write. At the moment, the tiles must be written from 0 to n-1 in sequence.
|
|
||||||
* @param p_data pointer to the data to write. Data is arranged in sequence, data_comp0, then data_comp1, then ... NO INTERLEAVING should be set.
|
|
||||||
* @param p_data_size this value os used to make sure the data being written is correct. The size must be equal to the sum for each component of tile_width * tile_height * component_size. component_size can be 1,2 or 4 bytes,
|
|
||||||
* depending on the precision of the given component.
|
|
||||||
* @param p_stream the stream to write data to.
|
|
||||||
*/
|
|
||||||
opj_bool OPJ_CALLCONV opj_write_tile ( opj_codec_t *p_codec,
|
|
||||||
OPJ_UINT32 p_tile_index,
|
|
||||||
OPJ_BYTE * p_data,
|
|
||||||
OPJ_UINT32 p_data_size,
|
|
||||||
opj_stream_t *p_stream )
|
|
||||||
{
|
|
||||||
if (p_codec && p_stream && p_data) {
|
|
||||||
opj_codec_private_t * l_codec = (opj_codec_private_t *) p_codec;
|
|
||||||
opj_stream_private_t * l_stream = (opj_stream_private_t *) p_stream;
|
|
||||||
|
|
||||||
if (l_codec->is_decompressor) {
|
|
||||||
return OPJ_FALSE;
|
|
||||||
}
|
|
||||||
|
|
||||||
return l_codec->m_codec_data.m_compression.opj_write_tile( l_codec->m_codec,
|
|
||||||
p_tile_index,
|
|
||||||
p_data,
|
|
||||||
p_data_size,
|
|
||||||
l_stream,
|
|
||||||
&(l_codec->m_event_mgr) );
|
|
||||||
}
|
|
||||||
|
|
||||||
return OPJ_FALSE;
|
|
||||||
}
|
|
||||||
|
|
||||||
/* ---------------------------------------------------------------------- */
|
/* ---------------------------------------------------------------------- */
|
||||||
/**
|
/**
|
||||||
|
|||||||
Loading…
Reference in New Issue
Block a user