diff options
Diffstat (limited to 'drivers/webpold/enc/webpenc.c')
| -rw-r--r-- | drivers/webpold/enc/webpenc.c | 389 |
1 files changed, 0 insertions, 389 deletions
diff --git a/drivers/webpold/enc/webpenc.c b/drivers/webpold/enc/webpenc.c deleted file mode 100644 index 3c275589f..000000000 --- a/drivers/webpold/enc/webpenc.c +++ /dev/null @@ -1,389 +0,0 @@ -// Copyright 2011 Google Inc. All Rights Reserved. -// -// This code is licensed under the same terms as WebM: -// Software License Agreement: http://www.webmproject.org/license/software/ -// Additional IP Rights Grant: http://www.webmproject.org/license/additional/ -// ----------------------------------------------------------------------------- -// -// WebP encoder: main entry point -// -// Author: Skal (pascal.massimino@gmail.com) - -#include <assert.h> -#include <stdlib.h> -#include <string.h> -#include <math.h> - -#include "./vp8enci.h" -#include "./vp8li.h" -#include "../utils/utils.h" - -// #define PRINT_MEMORY_INFO - -#if defined(__cplusplus) || defined(c_plusplus) -extern "C" { -#endif - -#ifdef PRINT_MEMORY_INFO -#include <stdio.h> -#endif - -//------------------------------------------------------------------------------ - -int WebPGetEncoderVersion(void) { - return (ENC_MAJ_VERSION << 16) | (ENC_MIN_VERSION << 8) | ENC_REV_VERSION; -} - -//------------------------------------------------------------------------------ -// WebPPicture -//------------------------------------------------------------------------------ - -static int DummyWriter(const uint8_t* data, size_t data_size, - const WebPPicture* const picture) { - // The following are to prevent 'unused variable' error message. - (void)data; - (void)data_size; - (void)picture; - return 1; -} - -int WebPPictureInitInternal(WebPPicture* picture, int version) { - if (WEBP_ABI_IS_INCOMPATIBLE(version, WEBP_ENCODER_ABI_VERSION)) { - return 0; // caller/system version mismatch! - } - if (picture != NULL) { - memset(picture, 0, sizeof(*picture)); - picture->writer = DummyWriter; - WebPEncodingSetError(picture, VP8_ENC_OK); - } - return 1; -} - -//------------------------------------------------------------------------------ -// VP8Encoder -//------------------------------------------------------------------------------ - -static void ResetSegmentHeader(VP8Encoder* const enc) { - VP8SegmentHeader* const hdr = &enc->segment_hdr_; - hdr->num_segments_ = enc->config_->segments; - hdr->update_map_ = (hdr->num_segments_ > 1); - hdr->size_ = 0; -} - -static void ResetFilterHeader(VP8Encoder* const enc) { - VP8FilterHeader* const hdr = &enc->filter_hdr_; - hdr->simple_ = 1; - hdr->level_ = 0; - hdr->sharpness_ = 0; - hdr->i4x4_lf_delta_ = 0; -} - -static void ResetBoundaryPredictions(VP8Encoder* const enc) { - // init boundary values once for all - // Note: actually, initializing the preds_[] is only needed for intra4. - int i; - uint8_t* const top = enc->preds_ - enc->preds_w_; - uint8_t* const left = enc->preds_ - 1; - for (i = -1; i < 4 * enc->mb_w_; ++i) { - top[i] = B_DC_PRED; - } - for (i = 0; i < 4 * enc->mb_h_; ++i) { - left[i * enc->preds_w_] = B_DC_PRED; - } - enc->nz_[-1] = 0; // constant -} - -// Map configured quality level to coding tools used. -//-------------+---+---+---+---+---+---+ -// Quality | 0 | 1 | 2 | 3 | 4 | 5 + -//-------------+---+---+---+---+---+---+ -// dynamic prob| ~ | x | x | x | x | x | -//-------------+---+---+---+---+---+---+ -// rd-opt modes| | | x | x | x | x | -//-------------+---+---+---+---+---+---+ -// fast i4/i16 | x | x | | | | | -//-------------+---+---+---+---+---+---+ -// rd-opt i4/16| | | x | x | x | x | -//-------------+---+---+---+---+---+---+ -// Trellis | | x | | | x | x | -//-------------+---+---+---+---+---+---+ -// full-SNS | | | | | | x | -//-------------+---+---+---+---+---+---+ - -static void MapConfigToTools(VP8Encoder* const enc) { - const int method = enc->config_->method; - const int limit = 100 - enc->config_->partition_limit; - enc->method_ = method; - enc->rd_opt_level_ = (method >= 6) ? 3 - : (method >= 5) ? 2 - : (method >= 3) ? 1 - : 0; - enc->max_i4_header_bits_ = - 256 * 16 * 16 * // upper bound: up to 16bit per 4x4 block - (limit * limit) / (100 * 100); // ... modulated with a quadratic curve. -} - -// Memory scaling with dimensions: -// memory (bytes) ~= 2.25 * w + 0.0625 * w * h -// -// Typical memory footprint (768x510 picture) -// Memory used: -// encoder: 33919 -// block cache: 2880 -// info: 3072 -// preds: 24897 -// top samples: 1623 -// non-zero: 196 -// lf-stats: 2048 -// total: 68635 -// Transcient object sizes: -// VP8EncIterator: 352 -// VP8ModeScore: 912 -// VP8SegmentInfo: 532 -// VP8Proba: 31032 -// LFStats: 2048 -// Picture size (yuv): 589824 - -static VP8Encoder* InitVP8Encoder(const WebPConfig* const config, - WebPPicture* const picture) { - const int use_filter = - (config->filter_strength > 0) || (config->autofilter > 0); - const int mb_w = (picture->width + 15) >> 4; - const int mb_h = (picture->height + 15) >> 4; - const int preds_w = 4 * mb_w + 1; - const int preds_h = 4 * mb_h + 1; - const size_t preds_size = preds_w * preds_h * sizeof(uint8_t); - const int top_stride = mb_w * 16; - const size_t nz_size = (mb_w + 1) * sizeof(uint32_t); - const size_t cache_size = (3 * YUV_SIZE + PRED_SIZE) * sizeof(uint8_t); - const size_t info_size = mb_w * mb_h * sizeof(VP8MBInfo); - const size_t samples_size = (2 * top_stride + // top-luma/u/v - 16 + 16 + 16 + 8 + 1 + // left y/u/v - 2 * ALIGN_CST) // align all - * sizeof(uint8_t); - const size_t lf_stats_size = - config->autofilter ? sizeof(LFStats) + ALIGN_CST : 0; - VP8Encoder* enc; - uint8_t* mem; - const uint64_t size = (uint64_t)sizeof(VP8Encoder) // main struct - + ALIGN_CST // cache alignment - + cache_size // working caches - + info_size // modes info - + preds_size // prediction modes - + samples_size // top/left samples - + nz_size // coeff context bits - + lf_stats_size; // autofilter stats - -#ifdef PRINT_MEMORY_INFO - printf("===================================\n"); - printf("Memory used:\n" - " encoder: %ld\n" - " block cache: %ld\n" - " info: %ld\n" - " preds: %ld\n" - " top samples: %ld\n" - " non-zero: %ld\n" - " lf-stats: %ld\n" - " total: %ld\n", - sizeof(VP8Encoder) + ALIGN_CST, cache_size, info_size, - preds_size, samples_size, nz_size, lf_stats_size, size); - printf("Transcient object sizes:\n" - " VP8EncIterator: %ld\n" - " VP8ModeScore: %ld\n" - " VP8SegmentInfo: %ld\n" - " VP8Proba: %ld\n" - " LFStats: %ld\n", - sizeof(VP8EncIterator), sizeof(VP8ModeScore), - sizeof(VP8SegmentInfo), sizeof(VP8Proba), - sizeof(LFStats)); - printf("Picture size (yuv): %ld\n", - mb_w * mb_h * 384 * sizeof(uint8_t)); - printf("===================================\n"); -#endif - mem = (uint8_t*)WebPSafeMalloc(size, sizeof(*mem)); - if (mem == NULL) { - WebPEncodingSetError(picture, VP8_ENC_ERROR_OUT_OF_MEMORY); - return NULL; - } - enc = (VP8Encoder*)mem; - mem = (uint8_t*)DO_ALIGN(mem + sizeof(*enc)); - memset(enc, 0, sizeof(*enc)); - enc->num_parts_ = 1 << config->partitions; - enc->mb_w_ = mb_w; - enc->mb_h_ = mb_h; - enc->preds_w_ = preds_w; - enc->yuv_in_ = (uint8_t*)mem; - mem += YUV_SIZE; - enc->yuv_out_ = (uint8_t*)mem; - mem += YUV_SIZE; - enc->yuv_out2_ = (uint8_t*)mem; - mem += YUV_SIZE; - enc->yuv_p_ = (uint8_t*)mem; - mem += PRED_SIZE; - enc->mb_info_ = (VP8MBInfo*)mem; - mem += info_size; - enc->preds_ = ((uint8_t*)mem) + 1 + enc->preds_w_; - mem += preds_w * preds_h * sizeof(uint8_t); - enc->nz_ = 1 + (uint32_t*)mem; - mem += nz_size; - enc->lf_stats_ = lf_stats_size ? (LFStats*)DO_ALIGN(mem) : NULL; - mem += lf_stats_size; - - // top samples (all 16-aligned) - mem = (uint8_t*)DO_ALIGN(mem); - enc->y_top_ = (uint8_t*)mem; - enc->uv_top_ = enc->y_top_ + top_stride; - mem += 2 * top_stride; - mem = (uint8_t*)DO_ALIGN(mem + 1); - enc->y_left_ = (uint8_t*)mem; - mem += 16 + 16; - enc->u_left_ = (uint8_t*)mem; - mem += 16; - enc->v_left_ = (uint8_t*)mem; - mem += 8; - - enc->config_ = config; - enc->profile_ = use_filter ? ((config->filter_type == 1) ? 0 : 1) : 2; - enc->pic_ = picture; - enc->percent_ = 0; - - MapConfigToTools(enc); - VP8EncDspInit(); - VP8DefaultProbas(enc); - ResetSegmentHeader(enc); - ResetFilterHeader(enc); - ResetBoundaryPredictions(enc); - - VP8EncInitAlpha(enc); -#ifdef WEBP_EXPERIMENTAL_FEATURES - VP8EncInitLayer(enc); -#endif - - return enc; -} - -static void DeleteVP8Encoder(VP8Encoder* enc) { - if (enc != NULL) { - VP8EncDeleteAlpha(enc); -#ifdef WEBP_EXPERIMENTAL_FEATURES - VP8EncDeleteLayer(enc); -#endif - free(enc); - } -} - -//------------------------------------------------------------------------------ - -static double GetPSNR(uint64_t err, uint64_t size) { - return err ? 10. * log10(255. * 255. * size / err) : 99.; -} - -static void FinalizePSNR(const VP8Encoder* const enc) { - WebPAuxStats* stats = enc->pic_->stats; - const uint64_t size = enc->sse_count_; - const uint64_t* const sse = enc->sse_; - stats->PSNR[0] = (float)GetPSNR(sse[0], size); - stats->PSNR[1] = (float)GetPSNR(sse[1], size / 4); - stats->PSNR[2] = (float)GetPSNR(sse[2], size / 4); - stats->PSNR[3] = (float)GetPSNR(sse[0] + sse[1] + sse[2], size * 3 / 2); - stats->PSNR[4] = (float)GetPSNR(sse[3], size); -} - -static void StoreStats(VP8Encoder* const enc) { - WebPAuxStats* const stats = enc->pic_->stats; - if (stats != NULL) { - int i, s; - for (i = 0; i < NUM_MB_SEGMENTS; ++i) { - stats->segment_level[i] = enc->dqm_[i].fstrength_; - stats->segment_quant[i] = enc->dqm_[i].quant_; - for (s = 0; s <= 2; ++s) { - stats->residual_bytes[s][i] = enc->residual_bytes_[s][i]; - } - } - FinalizePSNR(enc); - stats->coded_size = enc->coded_size_; - for (i = 0; i < 3; ++i) { - stats->block_count[i] = enc->block_count_[i]; - } - } - WebPReportProgress(enc->pic_, 100, &enc->percent_); // done! -} - -int WebPEncodingSetError(const WebPPicture* const pic, - WebPEncodingError error) { - assert((int)error < VP8_ENC_ERROR_LAST); - assert((int)error >= VP8_ENC_OK); - ((WebPPicture*)pic)->error_code = error; - return 0; -} - -int WebPReportProgress(const WebPPicture* const pic, - int percent, int* const percent_store) { - if (percent_store != NULL && percent != *percent_store) { - *percent_store = percent; - if (pic->progress_hook && !pic->progress_hook(percent, pic)) { - // user abort requested - WebPEncodingSetError(pic, VP8_ENC_ERROR_USER_ABORT); - return 0; - } - } - return 1; // ok -} -//------------------------------------------------------------------------------ - -int WebPEncode(const WebPConfig* config, WebPPicture* pic) { - int ok; - - if (pic == NULL) - return 0; - WebPEncodingSetError(pic, VP8_ENC_OK); // all ok so far - if (config == NULL) // bad params - return WebPEncodingSetError(pic, VP8_ENC_ERROR_NULL_PARAMETER); - if (!WebPValidateConfig(config)) - return WebPEncodingSetError(pic, VP8_ENC_ERROR_INVALID_CONFIGURATION); - if (pic->width <= 0 || pic->height <= 0) - return WebPEncodingSetError(pic, VP8_ENC_ERROR_BAD_DIMENSION); - if (pic->width > WEBP_MAX_DIMENSION || pic->height > WEBP_MAX_DIMENSION) - return WebPEncodingSetError(pic, VP8_ENC_ERROR_BAD_DIMENSION); - - if (pic->stats != NULL) memset(pic->stats, 0, sizeof(*pic->stats)); - - if (!config->lossless) { - VP8Encoder* enc = NULL; - if (pic->y == NULL || pic->u == NULL || pic->v == NULL) { - if (pic->argb != NULL) { - if (!WebPPictureARGBToYUVA(pic, WEBP_YUV420)) return 0; - } else { - return WebPEncodingSetError(pic, VP8_ENC_ERROR_NULL_PARAMETER); - } - } - - enc = InitVP8Encoder(config, pic); - if (enc == NULL) return 0; // pic->error is already set. - // Note: each of the tasks below account for 20% in the progress report. - ok = VP8EncAnalyze(enc) - && VP8StatLoop(enc) - && VP8EncLoop(enc) - && VP8EncFinishAlpha(enc) -#ifdef WEBP_EXPERIMENTAL_FEATURES - && VP8EncFinishLayer(enc) -#endif - && VP8EncWrite(enc); - StoreStats(enc); - if (!ok) { - VP8EncFreeBitWriters(enc); - } - DeleteVP8Encoder(enc); - } else { - if (pic->argb == NULL) - return WebPEncodingSetError(pic, VP8_ENC_ERROR_NULL_PARAMETER); - - ok = VP8LEncodeImage(config, pic); // Sets pic->error in case of problem. - } - - return ok; -} - -#if defined(__cplusplus) || defined(c_plusplus) -} // extern "C" -#endif |