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path: root/tests/ref/vsynth/vsynth1-jpeg2000-97
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* libavcodec/jpeg2000: fix tag tree resetGautam Ramakrishnan2020-08-30
| | | | | | | | | | The implementation of the tag tree did not set the correct reset value for the encoder. This lead to inefficent tag tree being encoded. This patch fixes the implementation of the ff_tag_tree_zero() function. Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* libavcodec/j2kenc: Support for multiple layersGautam Ramakrishnan2020-08-30
| | | | | | | | | | | This patch allows setting a compression ratio and to set multiple layers. The user has to input a compression ratio for each layer. The per layer compression ration can be set as follows: -layer_rates "r1,r2,...rn" for to create 'n' layers. Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* lavc/j2kenc: Make jp2 output compatible with Kakadu.Carl Eugen Hoyos2015-06-30
| | | | Fixes ticket #4689.
* avcodec/jpeg2000dec: Merge i_stepsize/2 decoder special case into dequantMichael Niedermayer2015-06-28
| | | | Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* avcodec/jpeg2000dwt: use 32x32->64 multiplies in the 9/7i DWTMichael Niedermayer2015-06-22
| | | | | | | This significantly improves the quality when the integer 9/7 transform is used Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* avcodec/jpeg2000: Move H band scaling from wavelet into quantization codeMichael Niedermayer2015-06-22
| | | | | | | This reduces the number of operations done and is equivalent except for rounding Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* avcodec/jpeg2000: Move gainb handling into the quantization codeMichael Niedermayer2015-06-22
| | | | | | | | thats how the specification defines it, this also improves numerical accuracy of the integer wavelet implementation. It otherwise should be equivalent, in case of overflows this can be reverted. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* avcodec/jpeg2000dwt: Fix value of F_LFTG_X and I_LFTG_XMichael Niedermayer2015-06-21
| | | | | | | | Even if the jpeg2000 spec uses a wrong value this does not make mathematics work this way, also this has been corrected in the 2004 version AFAIK Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* avcodec/jpeg2000dwt: Fix order of operations in integer decomposition waveletsMichael Niedermayer2015-06-20
| | | | Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* avcodec/j2kenc: Use JP2 format by defaultMichael Niedermayer2015-06-19
| | | | | | | | Without the JP2 fields its not possible to identify the colorspace Fixes Ticket538 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* avcodec/j2kenc: Properly flush the end of the truncated AC streamMichael Niedermayer2015-06-17
| | | | Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* avcodec/jpeg2000dwt: Support 9/7 singularity cases on the encoder sideMichael Niedermayer2015-06-17
| | | | Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* avcodec/jpeg2000dwt: More special cases to handle singularities in 9/7 decodeMichael Niedermayer2015-06-17
| | | | | | Fixes Ticket4634 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* avformat/avienc: Fix wrongly placed commentMichael Niedermayer2015-03-19
| | | | Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* Set dwSuggestBufferSize to largest chunk size for every stream in avi.Carl Eugen Hoyos2014-05-19
| | | | | | | Fixes playback with WMP 9 for files with large (rawvideo) frames as explained in ticket #2145. Fixes ticket #2818.
* avcodec/jpeg2000dwt: merge rescaling with interleave in 9/7 int IDWTMichael Niedermayer2013-06-03
| | | | | | | Tha fate tests change because the edge mirroring was wrong before this commit Reviewed-by: Nicolas BERTRAND <nicoinattendu@gmail.com> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* j2k/jpeg2000dec: mergeMichael Niedermayer2013-05-31
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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