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/AliOS-Things-master/components/SDL2/src/image/external/jpeg-9b/
A Djcparam.c123 jpeg_quality_scaling (int quality) in jpeg_quality_scaling() argument
130 if (quality <= 0) quality = 1; in jpeg_quality_scaling()
131 if (quality > 100) quality = 100; in jpeg_quality_scaling()
139 if (quality < 50) in jpeg_quality_scaling()
140 quality = 5000 / quality; in jpeg_quality_scaling()
142 quality = 200 - quality*2; in jpeg_quality_scaling()
144 return quality; in jpeg_quality_scaling()
149 jpeg_set_quality (j_compress_ptr cinfo, int quality, boolean force_baseline) in jpeg_set_quality() argument
157 quality = jpeg_quality_scaling(quality); in jpeg_set_quality()
160 jpeg_set_linear_quality(cinfo, quality, force_baseline); in jpeg_set_quality()
A Dusage.txt70 -quality N[,...] Scale quantization tables to adjust image quality.
92 memory. Image quality and speed of decompression are
108 The -quality switch lets you trade off compressed file size against quality of
123 in output image quality.
170 smaller values produce higher quality
172 default quality of 75 and default Luminance qtable
201 For example, cjpeg -bgycc -quality 80,90 will give
202 similar results as cjpeg -quality 80.
222 -nosmooth Don't use high-quality downsampling.
362 between speed and quality; no dithering is fast but
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A Dwizard.txt9 with worse image quality and/or poorer compression than you'd get from the
20 the -quality setting. The details of the scaling algorithm can be found in
21 jcparam.c. At very low quality settings, some quantization table entries
25 wide compatibility of low-quality files, you can constrain the scaled
27 Note that use of -baseline will result in poorer quality for the same file
68 If the -qtables switch is used without -quality, then the specified tables
69 are used exactly as-is. If both -qtables and -quality are used, then the
71 tables would be scaled for that quality setting. If -baseline appears, then
110 with very little quality gain.
206 It may be worth pointing out that this script is tuned for quality settings
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A Dexample.c72 write_JPEG_file (char * filename, int quality) in write_JPEG_file() argument
137 jpeg_set_quality(&cinfo, quality, TRUE /* limit to baseline-JPEG values */); in write_JPEG_file()
/AliOS-Things-master/components/SDL2/src/image/external/libwebp-1.0.2/src/enc/
A Dconfig_enc.c25 WebPPreset preset, float quality, int version) { in WebPConfigInitInternal() argument
31 config->quality = quality; in WebPConfigInitInternal()
98 if (config->quality < 0 || config->quality > 100) return 0; in WebPValidateConfig()
148 config->quality = kLosslessPresets[level].quality_; in WebPConfigLosslessPreset()
A Dalpha_enc.c81 config.quality = in EncodeLossless()
83 assert(config.quality >= 0 && config.quality <= 100.f); in EncodeLossless()
293 int quality, int method, int filter, in EncodeAlpha() argument
304 const int reduce_levels = (quality < 100); in EncodeAlpha()
314 if (quality < 0 || quality > 100) { in EncodeAlpha()
339 const int alpha_levels = (quality <= 70) ? (2 + quality / 5) in EncodeAlpha()
340 : (16 + (quality - 70) * 8); in EncodeAlpha()
A Dbackward_references_enc.c207 static int GetMaxItersForQuality(int quality) { in GetMaxItersForQuality() argument
208 return 8 + (quality * quality) / 128; in GetMaxItersForQuality()
211 static int GetWindowSizeForHashChain(int quality, int xsize) { in GetWindowSizeForHashChain() argument
212 const int max_window_size = (quality > 75) ? WINDOW_SIZE in GetWindowSizeForHashChain()
213 : (quality > 50) ? (xsize << 8) in GetWindowSizeForHashChain()
214 : (quality > 25) ? (xsize << 6) in GetWindowSizeForHashChain()
224 int VP8LHashChainFill(VP8LHashChain* const p, int quality, in VP8LHashChainFill() argument
228 const int iter_max = GetMaxItersForQuality(quality); in VP8LHashChainFill()
845 int width, int height, const uint32_t* const argb, int quality, in GetBackwardReferences() argument
911 quality >= 25) { in GetBackwardReferences()
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A Dvp8li_enc.h97 int VP8ApplyNearLossless(const WebPPicture* const picture, int quality,
109 void VP8LColorSpaceTransform(int width, int height, int bits, int quality,
A Dpredictor_enc.c565 VP8LMultipliers prev_x, VP8LMultipliers prev_y, int quality, in GetBestGreenToRed() argument
567 const int kMaxIters = 4 + ((7 * quality) >> 8); // in range [4..6] in GetBestGreenToRed()
629 VP8LMultipliers prev_x, VP8LMultipliers prev_y, int quality, in GetBestGreenRedToBlue() argument
636 (quality < 25) ? 1 : (quality > 50) ? kGreenRedToBlueMaxIters : 4; in GetBestGreenRedToBlue()
659 if (quality < 25 && iter == 4) { in GetBestGreenRedToBlue()
679 int quality, int xsize, int ysize, in GetBestColorTransformForTile() argument
696 prev_x, prev_y, quality, accumulated_red_histo, &best_tx); in GetBestColorTransformForTile()
698 prev_x, prev_y, quality, accumulated_blue_histo, in GetBestColorTransformForTile()
717 void VP8LColorSpaceTransform(int width, int height, int bits, int quality, in VP8LColorSpaceTransform() argument
741 quality, width, height, in VP8LColorSpaceTransform()
A Dvp8l_enc.c404 if (method == 6 && config->quality == 100) { in EncoderAnalyze()
796 if (!VP8LHashChainFill(hash_chain, quality, argb, width, height, in EncodeImageNoHuffman()
801 refs = VP8LGetBackwardReferences(width, height, argb, quality, 0, in EncodeImageNoHuffman()
864 int height, int quality, int low_effort, int use_cache, in EncodeImageInternal() argument
908 !VP8LHashChainFill(hash_chain, quality, argb, width, height, in EncodeImageInternal()
919 width, height, argb, quality, low_effort, in EncodeImageInternal()
1078 int quality, int low_effort, in ApplyPredictFilter() argument
1100 quality, low_effort); in ApplyPredictFilter()
1111 VP8LColorSpaceTransform(width, height, ccolor_transform_bits, quality, in ApplyCrossColorFilter()
1121 quality, low_effort); in ApplyCrossColorFilter()
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A Dnear_lossless_enc.c110 int VP8ApplyNearLossless(const WebPPicture* const picture, int quality, in VP8ApplyNearLossless() argument
118 const int limit_bits = VP8LNearLosslessBits(quality); in VP8ApplyNearLossless()
A Dbackward_references_enc.h137 int VP8LHashChainFill(VP8LHashChain* const p, int quality,
225 int width, int height, const uint32_t* const argb, int quality,
A Dhistogram_enc.h111 int quality, int low_effort,
A Dwebp_enc.c163 (config->quality <= ERROR_DIFFUSION_QUALITY || config->pass > 1) ? in InitVP8Encoder()
248 const float scale = 1.f + config->quality * 5.f / 100.f; // in [1,6] in InitVP8Encoder()
360 const float x = config->quality / 100.f; in WebPEncode()
/AliOS-Things-master/components/SDL2/src/image/
A DIMG_jpg.c62 void (*jpeg_set_quality) (j_compress_ptr cinfo, int quality, boolean force_baseline);
98 …FUNCTION_LOADER(jpeg_set_quality, void (*) (j_compress_ptr cinfo, int quality, boolean force_basel… in IMG_InitJPG()
468 static int IMG_SaveJPG_RW_jpeglib(SDL_Surface *surface, SDL_RWops *dst, int freedst, int quality) in IMG_SaveJPG_RW_jpeglib() argument
512 lib.jpeg_set_quality(&cinfo, quality, TRUE); in IMG_SaveJPG_RW_jpeglib()
570 int IMG_SaveJPG(SDL_Surface *surface, const char *file, int quality) in IMG_SaveJPG() argument
574 return IMG_SaveJPG_RW(surface, dst, 1, quality); in IMG_SaveJPG()
580 int IMG_SaveJPG_RW(SDL_Surface *surface, SDL_RWops *dst, int freedst, int quality) in IMG_SaveJPG_RW() argument
583 return IMG_SaveJPG_RW_jpeglib(surface, dst, freedst, quality); in IMG_SaveJPG_RW()
A DSDL_image.h148 extern DECLSPEC int SDLCALL IMG_SaveJPG(SDL_Surface *surface, const char *file, int quality);
149 …ECLSPEC int SDLCALL IMG_SaveJPG_RW(SDL_Surface *surface, SDL_RWops *dst, int freedst, int quality);
/AliOS-Things-master/components/SDL2/src/image/external/libwebp-1.0.2/src/mux/
A Danim_encode.c407 static int QualityToMaxDiff(float quality) { in QualityToMaxDiff() argument
408 const double val = pow(quality / 100., 0.5); in QualityToMaxDiff()
541 int is_lossless, float quality, in GetSubRect() argument
548 is_lossless, quality); in GetSubRect()
571 int is_first_frame, float quality, in GetSubRects() argument
579 params->empty_rect_allowed_, 1, quality, in GetSubRects()
614 quality); in WebPAnimEncoderRefineRect()
661 float quality) { in IsLossyBlendingPossible() argument
876 config_lossy->quality); in GenerateCandidates()
907 config_lossy->quality); in GenerateCandidates()
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A Danimi.h36 int is_lossless, float quality, int* const x_offset, int* const y_offset,
/AliOS-Things-master/components/SDL2/src/image/external/tiff-4.0.9/tools/
A Dppm2tiff.c61 static int quality = 75; /* JPEG quality */ variable
225 TIFFSetField(out, TIFFTAG_JPEGQUALITY, quality); in main()
327 quality = atoi(cp+1); in processCompressOptions()
/AliOS-Things-master/components/SDL2/src/image/external/libwebp-1.0.2/src/webp/
A Dencode.h96 float quality; // between 0 and 100. For lossy, 0 gives the smallest member
181 WebPPreset preset, float quality) { in WebPConfigPreset() argument
182 return WebPConfigInitInternal(config, preset, quality, in WebPConfigPreset()
/AliOS-Things-master/components/SDL2/src/image/VisualC/external/include/webp/
A Dencode.h96 float quality; // between 0 and 100. For lossy, 0 gives the smallest member
181 WebPPreset preset, float quality) { in WebPConfigPreset() argument
182 return WebPConfigInitInternal(config, preset, quality, in WebPConfigPreset()
/AliOS-Things-master/components/SDL2/src/image/Xcode/Frameworks/webp.framework/Versions/A/Headers/webp/
A Dencode.h96 float quality; // between 0 and 100. For lossy, 0 gives the smallest member
181 WebPPreset preset, float quality) { in WebPConfigPreset() argument
182 return WebPConfigInitInternal(config, preset, quality, in WebPConfigPreset()
/AliOS-Things-master/components/ugraphics/src/jpegdec/
A Djpegdec.c148 int height, int quality, unsigned char **jpeg_buffer, in trgb2jpeg() argument
166 pixelfmt, jpeg_buffer, jpeg_size, subsamp, quality, flags); in trgb2jpeg()
/AliOS-Things-master/components/uvoice/audio/process/
A Dproc_resample.c37 int quality; member
280 inst->quality = 0; in uvoice_resampler_create()
289 inst->quality, &err); in uvoice_resampler_create()
/AliOS-Things-master/components/SDL2/src/image/external/libwebp-1.0.2/
A DREADME213 on a 0->100 scale (0 being the lowest quality, 100 being the best. Default
232 -q <float> ............. quality factor (0:small..100:big), default=75
233 -alpha_q <int> ......... transparency-compression quality (0..100),
254 -partition_limit <int> . limit quality to fit the 512k limit on
298 visual quality are:
314 but with better quality.
325 of quality.
471 -q <float> ........... quality
493 -q <float> ............. quality factor (0:small..100:big)
566 is the quality factor.
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