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However its notoriety wouldn’t come unto around 2003 when CineForm HD when was developed, which moved the codec a from consumer 8-bit YUV, to offering 10-bit YUV and 12-bit RGB/RGBA for more professional digital intermediate work. The CineForm video codec was developed in between 20 as a light weight compressed alternative for DV or other consumer formats of the time. Increase the GENERATIONS to see it makes very little difference on the quality. Set the ERRORGAIN to amplify the difference between the source and the decoded image. Change the number of LEVELS to see how wavelets work. Play with the BITDEPTH, to see the impact on quality. #define BITDEPTH (12) // designed for 12, supports 8 thru 14 #define LEVELS (3) // designed for 3, but you can experiment with 1 thru 7 #define GENERATIONS (1) // The type of compression, setting losing little to nothing after the first generation. #define ERRORGAIN (10) // The compression is good, this multiples the error to so can see the subtle differences #define SUBBANDS_STATS 1 // Show Subband stats #define OUTPUT_DECODED 1 // Output a PGM for the decoded image. #define OUTPUT_WAVELET_TREE 1 // Output a PGM for the wavelet structure. #define OUTPUT_DIFFERENCE 1 // Output a PGM (portable Grey Map) image for the differences due to quantization. #define INTERLACED22 0 // Source is interlaced, use a different vertical filter on the first wavelet level WaveletDemo is just three files: wavelets.c, utils.c, utils.h so it can be easy build without CMake.
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You will need CMake version 3.5.1 or better for the full SDK. Quick Start for Developers SetupĬlone the project from Github (git clone ). Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.
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TestCFHD - demo code for using the encoder and decoder SDKs as a guide to adding CineForm to your applications.C and C++ with hand-optimized SSE2 intrinsics for x86/圆4 platforms, with cross platform threading. The complete source to CineForm Encoder and Decoder SDK.Whereas most other intermediate video codecs are a constant bit-rate design, quality varies depending on the scene. CineForm is a constant quality design, bit-rates will vary as needed for the scene. Dual channel stereoscopic/3D in any of the above.Ĭompression ratio: between 10:1 and 4:1 are typical, greater ranges are possible.12/16-bit CFA Bayer RAW, log encoded and compressed at 12-bit progressive.8/16-bit RGBA 4:4:4:4 compressed at 12-bit progressive.8/10/16-bit RGB 4:4:4 compressed at 12-bit progressive.8/10/16-bit YUV 4:2:2 compressed as 10-bit, progressive or interlace.The full frame wavelet as a subject quality advantage over DCTs, so you can compression more without classic ringing or block artifact issues. More recent examples would be Avid DNxHD® and Apple ProRes®, although both divide the image into blocks using DCT. CineForm was the first of its type to focus on speed, while supporting higher bit depths for image quality. Image compression is a balance of size, speed and quality, and you can only choose two. It is designed for speed and quality, at the expense of a very high compression size. GoPro CineForm® is a 12-bit, full-frame wavelet compression video codec. CineForm Introduction The GoPro® CineForm video codec SDK.
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