1 // Copyright 2011 Google Inc. 2 // 3 // This code is licensed under the same terms as WebM: 4 // Software License Agreement: http://www.webmproject.org/license/software/ 5 // Additional IP Rights Grant: http://www.webmproject.org/license/additional/ 6 // ----------------------------------------------------------------------------- 7 // 8 // Enhancement layer (for YUV444/422) 9 // 10 // Author: Skal (pascal.massimino (at) gmail.com) 11 12 #include <assert.h> 13 #include <stdlib.h> 14 #include "vp8enci.h" 15 16 #if defined(__cplusplus) || defined(c_plusplus) 17 extern "C" { 18 #endif 19 20 #ifdef WEBP_EXPERIMENTAL_FEATURES 21 22 #endif /* WEBP_EXPERIMENTAL_FEATURES */ 23 24 //----------------------------------------------------------------------------- 25 26 void VP8EncInitLayer(VP8Encoder* const enc) { 27 enc->use_layer_ = (enc->pic_->u0 != NULL); 28 enc->layer_data_size_ = 0; 29 enc->layer_data_ = NULL; 30 if (enc->use_layer_) { 31 VP8BitWriterInit(&enc->layer_bw_, enc->mb_w_ * enc->mb_h_ * 3); 32 } 33 } 34 35 void VP8EncCodeLayerBlock(VP8EncIterator* it) { 36 (void)it; // remove a warning 37 #ifdef WEBP_EXPERIMENTAL_FEATURES 38 #endif /* WEBP_EXPERIMENTAL_FEATURES */ 39 } 40 41 int VP8EncFinishLayer(VP8Encoder* const enc) { 42 if (enc->use_layer_) { 43 enc->layer_data_ = VP8BitWriterFinish(&enc->layer_bw_); 44 enc->layer_data_size_ = VP8BitWriterSize(&enc->layer_bw_); 45 } 46 return 1; 47 } 48 49 void VP8EncDeleteLayer(VP8Encoder* enc) { 50 free(enc->layer_data_); 51 } 52 53 #if defined(__cplusplus) || defined(c_plusplus) 54 } // extern "C" 55 #endif 56
