diff options
Diffstat (limited to 'media/libwebp/dec')
-rw-r--r-- | media/libwebp/dec/alpha_dec.c | 6 | ||||
-rw-r--r-- | media/libwebp/dec/alphai_dec.h | 8 | ||||
-rw-r--r-- | media/libwebp/dec/buffer_dec.c | 49 | ||||
-rw-r--r-- | media/libwebp/dec/common_dec.h | 6 | ||||
-rw-r--r-- | media/libwebp/dec/frame_dec.c | 26 | ||||
-rw-r--r-- | media/libwebp/dec/idec_dec.c | 12 | ||||
-rw-r--r-- | media/libwebp/dec/io_dec.c | 16 | ||||
-rw-r--r-- | media/libwebp/dec/quant_dec.c | 2 | ||||
-rw-r--r-- | media/libwebp/dec/tree_dec.c | 16 | ||||
-rw-r--r-- | media/libwebp/dec/vp8_dec.c | 10 | ||||
-rw-r--r-- | media/libwebp/dec/vp8_dec.h | 16 | ||||
-rw-r--r-- | media/libwebp/dec/vp8i_dec.h | 15 | ||||
-rw-r--r-- | media/libwebp/dec/vp8l_dec.c | 42 | ||||
-rw-r--r-- | media/libwebp/dec/vp8li_dec.h | 8 | ||||
-rw-r--r-- | media/libwebp/dec/webp_dec.c | 10 | ||||
-rw-r--r-- | media/libwebp/dec/webpi_dec.h | 8 |
16 files changed, 143 insertions, 107 deletions
diff --git a/media/libwebp/dec/alpha_dec.c b/media/libwebp/dec/alpha_dec.c index 83ffd4b60..1ff7c62d8 100644 --- a/media/libwebp/dec/alpha_dec.c +++ b/media/libwebp/dec/alpha_dec.c @@ -12,9 +12,9 @@ // Author: Skal (pascal.massimino@gmail.com) #include <stdlib.h> -#include "./alphai_dec.h" -#include "./vp8i_dec.h" -#include "./vp8li_dec.h" +#include "../dec/alphai_dec.h" +#include "../dec/vp8i_dec.h" +#include "../dec/vp8li_dec.h" #include "../dsp/dsp.h" #include "../utils/quant_levels_dec_utils.h" #include "../utils/utils.h" diff --git a/media/libwebp/dec/alphai_dec.h b/media/libwebp/dec/alphai_dec.h index 561e8151e..3b40691b5 100644 --- a/media/libwebp/dec/alphai_dec.h +++ b/media/libwebp/dec/alphai_dec.h @@ -11,10 +11,10 @@ // // Author: Urvang (urvang@google.com) -#ifndef WEBP_DEC_ALPHAI_H_ -#define WEBP_DEC_ALPHAI_H_ +#ifndef WEBP_DEC_ALPHAI_DEC_H_ +#define WEBP_DEC_ALPHAI_DEC_H_ -#include "./webpi_dec.h" +#include "../dec/webpi_dec.h" #include "../utils/filters_utils.h" #ifdef __cplusplus @@ -51,4 +51,4 @@ void WebPDeallocateAlphaMemory(VP8Decoder* const dec); } // extern "C" #endif -#endif /* WEBP_DEC_ALPHAI_H_ */ +#endif /* WEBP_DEC_ALPHAI_DEC_H_ */ diff --git a/media/libwebp/dec/buffer_dec.c b/media/libwebp/dec/buffer_dec.c index c685fd564..c7565c1bf 100644 --- a/media/libwebp/dec/buffer_dec.c +++ b/media/libwebp/dec/buffer_dec.c @@ -13,15 +13,15 @@ #include <stdlib.h> -#include "./vp8i_dec.h" -#include "./webpi_dec.h" +#include "../dec/vp8i_dec.h" +#include "../dec/webpi_dec.h" #include "../utils/utils.h" //------------------------------------------------------------------------------ // WebPDecBuffer // Number of bytes per pixel for the different color-spaces. -static const int kModeBpp[MODE_LAST] = { +static const uint8_t kModeBpp[MODE_LAST] = { 3, 4, 3, 4, 4, 2, 2, 4, 4, 4, 2, // pre-multiplied modes 1, 1 }; @@ -36,7 +36,7 @@ static int IsValidColorspace(int webp_csp_mode) { // strictly speaking, the very last (or first, if flipped) row // doesn't require padding. #define MIN_BUFFER_SIZE(WIDTH, HEIGHT, STRIDE) \ - (uint64_t)(STRIDE) * ((HEIGHT) - 1) + (WIDTH) + ((uint64_t)(STRIDE) * ((HEIGHT) - 1) + (WIDTH)) static VP8StatusCode CheckDecBuffer(const WebPDecBuffer* const buffer) { int ok = 1; @@ -98,9 +98,14 @@ static VP8StatusCode AllocateBuffer(WebPDecBuffer* const buffer) { uint64_t uv_size = 0, a_size = 0, total_size; // We need memory and it hasn't been allocated yet. // => initialize output buffer, now that dimensions are known. - const int stride = w * kModeBpp[mode]; - const uint64_t size = (uint64_t)stride * h; + int stride; + uint64_t size; + if ((uint64_t)w * kModeBpp[mode] >= (1ull << 32)) { + return VP8_STATUS_INVALID_PARAM; + } + stride = w * kModeBpp[mode]; + size = (uint64_t)stride * h; if (!WebPIsRGBMode(mode)) { uv_stride = (w + 1) / 2; uv_size = (uint64_t)uv_stride * ((h + 1) / 2); @@ -169,11 +174,11 @@ VP8StatusCode WebPFlipBuffer(WebPDecBuffer* const buffer) { return VP8_STATUS_OK; } -VP8StatusCode WebPAllocateDecBuffer(int w, int h, +VP8StatusCode WebPAllocateDecBuffer(int width, int height, const WebPDecoderOptions* const options, - WebPDecBuffer* const out) { + WebPDecBuffer* const buffer) { VP8StatusCode status; - if (out == NULL || w <= 0 || h <= 0) { + if (buffer == NULL || width <= 0 || height <= 0) { return VP8_STATUS_INVALID_PARAM; } if (options != NULL) { // First, apply options if there is any. @@ -182,33 +187,39 @@ VP8StatusCode WebPAllocateDecBuffer(int w, int h, const int ch = options->crop_height; const int x = options->crop_left & ~1; const int y = options->crop_top & ~1; - if (x < 0 || y < 0 || cw <= 0 || ch <= 0 || x + cw > w || y + ch > h) { + if (x < 0 || y < 0 || cw <= 0 || ch <= 0 || + x + cw > width || y + ch > height) { return VP8_STATUS_INVALID_PARAM; // out of frame boundary. } - w = cw; - h = ch; + width = cw; + height = ch; } + if (options->use_scaling) { +#if !defined(WEBP_REDUCE_SIZE) int scaled_width = options->scaled_width; int scaled_height = options->scaled_height; if (!WebPRescalerGetScaledDimensions( - w, h, &scaled_width, &scaled_height)) { + width, height, &scaled_width, &scaled_height)) { return VP8_STATUS_INVALID_PARAM; } - w = scaled_width; - h = scaled_height; + width = scaled_width; + height = scaled_height; +#else + return VP8_STATUS_INVALID_PARAM; // rescaling not supported +#endif } } - out->width = w; - out->height = h; + buffer->width = width; + buffer->height = height; // Then, allocate buffer for real. - status = AllocateBuffer(out); + status = AllocateBuffer(buffer); if (status != VP8_STATUS_OK) return status; // Use the stride trick if vertical flip is needed. if (options != NULL && options->flip) { - status = WebPFlipBuffer(out); + status = WebPFlipBuffer(buffer); } return status; } diff --git a/media/libwebp/dec/common_dec.h b/media/libwebp/dec/common_dec.h index 6961e2247..9995f1a51 100644 --- a/media/libwebp/dec/common_dec.h +++ b/media/libwebp/dec/common_dec.h @@ -11,8 +11,8 @@ // // Author: Skal (pascal.massimino@gmail.com) -#ifndef WEBP_DEC_COMMON_H_ -#define WEBP_DEC_COMMON_H_ +#ifndef WEBP_DEC_COMMON_DEC_H_ +#define WEBP_DEC_COMMON_DEC_H_ // intra prediction modes enum { B_DC_PRED = 0, // 4x4 modes @@ -51,4 +51,4 @@ enum { MB_FEATURE_TREE_PROBS = 3, NUM_PROBAS = 11 }; -#endif // WEBP_DEC_COMMON_H_ +#endif // WEBP_DEC_COMMON_DEC_H_ diff --git a/media/libwebp/dec/frame_dec.c b/media/libwebp/dec/frame_dec.c index f91e27f7c..57e4d9669 100644 --- a/media/libwebp/dec/frame_dec.c +++ b/media/libwebp/dec/frame_dec.c @@ -12,13 +12,13 @@ // Author: Skal (pascal.massimino@gmail.com) #include <stdlib.h> -#include "./vp8i_dec.h" +#include "../dec/vp8i_dec.h" #include "../utils/utils.h" //------------------------------------------------------------------------------ // Main reconstruction function. -static const int kScan[16] = { +static const uint16_t kScan[16] = { 0 + 0 * BPS, 4 + 0 * BPS, 8 + 0 * BPS, 12 + 0 * BPS, 0 + 4 * BPS, 4 + 4 * BPS, 8 + 4 * BPS, 12 + 4 * BPS, 0 + 8 * BPS, 4 + 8 * BPS, 8 + 8 * BPS, 12 + 8 * BPS, @@ -320,7 +320,7 @@ static void PrecomputeFilterStrengths(VP8Decoder* const dec) { #define MIN_DITHER_AMP 4 #define DITHER_AMP_TAB_SIZE 12 -static const int kQuantToDitherAmp[DITHER_AMP_TAB_SIZE] = { +static const uint8_t kQuantToDitherAmp[DITHER_AMP_TAB_SIZE] = { // roughly, it's dqm->uv_mat_[1] 8, 7, 6, 4, 4, 2, 2, 2, 1, 1, 1, 1 }; @@ -400,7 +400,9 @@ static void DitherRow(VP8Decoder* const dec) { #define MACROBLOCK_VPOS(mb_y) ((mb_y) * 16) // vertical position of a MB // Finalize and transmit a complete row. Return false in case of user-abort. -static int FinishRow(VP8Decoder* const dec, VP8Io* const io) { +static int FinishRow(void* arg1, void* arg2) { + VP8Decoder* const dec = (VP8Decoder*)arg1; + VP8Io* const io = (VP8Io*)arg2; int ok = 1; const VP8ThreadContext* const ctx = &dec->thread_ctx_; const int cache_id = ctx->id_; @@ -448,10 +450,9 @@ static int FinishRow(VP8Decoder* const dec, VP8Io* const io) { if (y_end > io->crop_bottom) { y_end = io->crop_bottom; // make sure we don't overflow on last row. } + // If dec->alpha_data_ is not NULL, we have some alpha plane present. io->a = NULL; if (dec->alpha_data_ != NULL && y_start < y_end) { - // TODO(skal): testing presence of alpha with dec->alpha_data_ is not a - // good idea. io->a = VP8DecompressAlphaRows(dec, io, y_start, y_end - y_start); if (io->a == NULL) { return VP8SetError(dec, VP8_STATUS_BITSTREAM_ERROR, @@ -558,7 +559,6 @@ VP8StatusCode VP8EnterCritical(VP8Decoder* const dec, VP8Io* const io) { if (io->bypass_filtering) { dec->filter_type_ = 0; } - // TODO(skal): filter type / strength / sharpness forcing // Define the area where we can skip in-loop filtering, in case of cropping. // @@ -569,8 +569,6 @@ VP8StatusCode VP8EnterCritical(VP8Decoder* const dec, VP8Io* const io) { // Means: there's a dependency chain that goes all the way up to the // top-left corner of the picture (MB #0). We must filter all the previous // macroblocks. - // TODO(skal): add an 'approximate_decoding' option, that won't produce - // a 1:1 bit-exactness for complex filtering? { const int extra_pixels = kFilterExtraRows[dec->filter_type_]; if (dec->filter_type_ == 2) { @@ -651,7 +649,7 @@ static int InitThreadContext(VP8Decoder* const dec) { } worker->data1 = dec; worker->data2 = (void*)&dec->thread_ctx_.io_; - worker->hook = (WebPWorkerHook)FinishRow; + worker->hook = FinishRow; dec->num_caches_ = (dec->filter_type_ > 0) ? MT_CACHE_LINES : MT_CACHE_LINES - 1; } else { @@ -728,7 +726,7 @@ static int AllocateMemory(VP8Decoder* const dec) { } mem = (uint8_t*)dec->mem_; - dec->intra_t_ = (uint8_t*)mem; + dec->intra_t_ = mem; mem += intra_pred_mode_size; dec->yuv_t_ = (VP8TopSamples*)mem; @@ -750,7 +748,7 @@ static int AllocateMemory(VP8Decoder* const dec) { mem = (uint8_t*)WEBP_ALIGN(mem); assert((yuv_size & WEBP_ALIGN_CST) == 0); - dec->yuv_b_ = (uint8_t*)mem; + dec->yuv_b_ = mem; mem += yuv_size; dec->mb_data_ = (VP8MBData*)mem; @@ -766,7 +764,7 @@ static int AllocateMemory(VP8Decoder* const dec) { const int extra_rows = kFilterExtraRows[dec->filter_type_]; const int extra_y = extra_rows * dec->cache_y_stride_; const int extra_uv = (extra_rows / 2) * dec->cache_uv_stride_; - dec->cache_y_ = ((uint8_t*)mem) + extra_y; + dec->cache_y_ = mem + extra_y; dec->cache_u_ = dec->cache_y_ + 16 * num_caches * dec->cache_y_stride_ + extra_uv; dec->cache_v_ = dec->cache_u_ @@ -776,7 +774,7 @@ static int AllocateMemory(VP8Decoder* const dec) { mem += cache_size; // alpha plane - dec->alpha_plane_ = alpha_size ? (uint8_t*)mem : NULL; + dec->alpha_plane_ = alpha_size ? mem : NULL; mem += alpha_size; assert(mem <= (uint8_t*)dec->mem_ + dec->mem_size_); diff --git a/media/libwebp/dec/idec_dec.c b/media/libwebp/dec/idec_dec.c index 78fb2e718..6777323c7 100644 --- a/media/libwebp/dec/idec_dec.c +++ b/media/libwebp/dec/idec_dec.c @@ -15,9 +15,9 @@ #include <string.h> #include <stdlib.h> -#include "./alphai_dec.h" -#include "./webpi_dec.h" -#include "./vp8i_dec.h" +#include "../dec/alphai_dec.h" +#include "../dec/webpi_dec.h" +#include "../dec/vp8i_dec.h" #include "../utils/utils.h" // In append mode, buffer allocations increase as multiples of this value. @@ -673,12 +673,12 @@ void WebPIDelete(WebPIDecoder* idec) { //------------------------------------------------------------------------------ // Wrapper toward WebPINewDecoder -WebPIDecoder* WebPINewRGB(WEBP_CSP_MODE mode, uint8_t* output_buffer, +WebPIDecoder* WebPINewRGB(WEBP_CSP_MODE csp, uint8_t* output_buffer, size_t output_buffer_size, int output_stride) { const int is_external_memory = (output_buffer != NULL) ? 1 : 0; WebPIDecoder* idec; - if (mode >= MODE_YUV) return NULL; + if (csp >= MODE_YUV) return NULL; if (is_external_memory == 0) { // Overwrite parameters to sane values. output_buffer_size = 0; output_stride = 0; @@ -689,7 +689,7 @@ WebPIDecoder* WebPINewRGB(WEBP_CSP_MODE mode, uint8_t* output_buffer, } idec = WebPINewDecoder(NULL); if (idec == NULL) return NULL; - idec->output_.colorspace = mode; + idec->output_.colorspace = csp; idec->output_.is_external_memory = is_external_memory; idec->output_.u.RGBA.rgba = output_buffer; idec->output_.u.RGBA.stride = output_stride; diff --git a/media/libwebp/dec/io_dec.c b/media/libwebp/dec/io_dec.c index 8bfab8695..0edd9f526 100644 --- a/media/libwebp/dec/io_dec.c +++ b/media/libwebp/dec/io_dec.c @@ -14,7 +14,7 @@ #include <assert.h> #include <stdlib.h> #include "../dec/vp8i_dec.h" -#include "./webpi_dec.h" +#include "../dec/webpi_dec.h" #include "../dsp/dsp.h" #include "../dsp/yuv.h" #include "../utils/utils.h" @@ -212,7 +212,7 @@ static int EmitAlphaRGBA4444(const VP8Io* const io, WebPDecParams* const p, int num_rows; const int start_y = GetAlphaSourceRow(io, &alpha, &num_rows); uint8_t* const base_rgba = buf->rgba + start_y * buf->stride; -#ifdef WEBP_SWAP_16BIT_CSP +#if (WEBP_SWAP_16BIT_CSP == 1) uint8_t* alpha_dst = base_rgba; #else uint8_t* alpha_dst = base_rgba + 1; @@ -241,6 +241,7 @@ static int EmitAlphaRGBA4444(const VP8Io* const io, WebPDecParams* const p, //------------------------------------------------------------------------------ // YUV rescaling (no final RGB conversion needed) +#if !defined(WEBP_REDUCE_SIZE) static int Rescale(const uint8_t* src, int src_stride, int new_lines, WebPRescaler* const wrk) { int num_lines_out = 0; @@ -431,7 +432,7 @@ static int ExportAlphaRGBA4444(WebPDecParams* const p, int y_pos, int max_lines_out) { const WebPRGBABuffer* const buf = &p->output->u.RGBA; uint8_t* const base_rgba = buf->rgba + y_pos * buf->stride; -#ifdef WEBP_SWAP_16BIT_CSP +#if (WEBP_SWAP_16BIT_CSP == 1) uint8_t* alpha_dst = base_rgba; #else uint8_t* alpha_dst = base_rgba + 1; @@ -541,6 +542,8 @@ static int InitRGBRescaler(const VP8Io* const io, WebPDecParams* const p) { return 1; } +#endif // WEBP_REDUCE_SIZE + //------------------------------------------------------------------------------ // Default custom functions @@ -561,10 +564,14 @@ static int CustomSetup(VP8Io* io) { WebPInitUpsamplers(); } if (io->use_scaling) { +#if !defined(WEBP_REDUCE_SIZE) const int ok = is_rgb ? InitRGBRescaler(io, p) : InitYUVRescaler(io, p); if (!ok) { return 0; // memory error } +#else + return 0; // rescaling support not compiled +#endif } else { if (is_rgb) { WebPInitSamplers(); @@ -598,9 +605,6 @@ static int CustomSetup(VP8Io* io) { } } - if (is_rgb) { - VP8YUVInit(); - } return 1; } diff --git a/media/libwebp/dec/quant_dec.c b/media/libwebp/dec/quant_dec.c index 14e319894..6ecaf1c45 100644 --- a/media/libwebp/dec/quant_dec.c +++ b/media/libwebp/dec/quant_dec.c @@ -11,7 +11,7 @@ // // Author: Skal (pascal.massimino@gmail.com) -#include "./vp8i_dec.h" +#include "../dec/vp8i_dec.h" static WEBP_INLINE int clip(int v, int M) { return v < 0 ? 0 : v > M ? M : v; diff --git a/media/libwebp/dec/tree_dec.c b/media/libwebp/dec/tree_dec.c index 9e805f60f..581886025 100644 --- a/media/libwebp/dec/tree_dec.c +++ b/media/libwebp/dec/tree_dec.c @@ -11,15 +11,19 @@ // // Author: Skal (pascal.massimino@gmail.com) -#include "./vp8i_dec.h" +#include "../dec/vp8i_dec.h" #include "../utils/bit_reader_inl_utils.h" +#if !defined(USE_GENERIC_TREE) #if !defined(__arm__) && !defined(_M_ARM) && !defined(__aarch64__) // using a table is ~1-2% slower on ARM. Prefer the coded-tree approach then. -#define USE_GENERIC_TREE +#define USE_GENERIC_TREE 1 // ALTERNATE_CODE +#else +#define USE_GENERIC_TREE 0 #endif +#endif // USE_GENERIC_TREE -#ifdef USE_GENERIC_TREE +#if (USE_GENERIC_TREE == 1) static const int8_t kYModesIntra4[18] = { -B_DC_PRED, 1, -B_TM_PRED, 2, @@ -317,7 +321,7 @@ static void ParseIntraMode(VP8BitReader* const br, int x; for (x = 0; x < 4; ++x) { const uint8_t* const prob = kBModesProba[top[x]][ymode]; -#ifdef USE_GENERIC_TREE +#if (USE_GENERIC_TREE == 1) // Generic tree-parsing int i = kYModesIntra4[VP8GetBit(br, prob[0])]; while (i > 0) { @@ -335,7 +339,7 @@ static void ParseIntraMode(VP8BitReader* const br, (!VP8GetBit(br, prob[6]) ? B_LD_PRED : (!VP8GetBit(br, prob[7]) ? B_VL_PRED : (!VP8GetBit(br, prob[8]) ? B_HD_PRED : B_HU_PRED))); -#endif // USE_GENERIC_TREE +#endif // USE_GENERIC_TREE top[x] = ymode; } memcpy(modes, top, 4 * sizeof(*top)); @@ -498,7 +502,7 @@ static const uint8_t // Paragraph 9.9 -static const int kBands[16 + 1] = { +static const uint8_t kBands[16 + 1] = { 0, 1, 2, 3, 6, 4, 5, 6, 6, 6, 6, 6, 6, 6, 6, 7, 0 // extra entry as sentinel }; diff --git a/media/libwebp/dec/vp8_dec.c b/media/libwebp/dec/vp8_dec.c index fad8d9cf3..e7958be6b 100644 --- a/media/libwebp/dec/vp8_dec.c +++ b/media/libwebp/dec/vp8_dec.c @@ -13,10 +13,10 @@ #include <stdlib.h> -#include "./alphai_dec.h" -#include "./vp8i_dec.h" -#include "./vp8li_dec.h" -#include "./webpi_dec.h" +#include "../dec/alphai_dec.h" +#include "../dec/vp8i_dec.h" +#include "../dec/vp8li_dec.h" +#include "../dec/webpi_dec.h" #include "../utils/bit_reader_inl_utils.h" #include "../utils/utils.h" @@ -491,7 +491,7 @@ static int GetCoeffsAlt(VP8BitReader* const br, return 16; } -WEBP_TSAN_IGNORE_FUNCTION static void InitGetCoeffs(void) { +static WEBP_TSAN_IGNORE_FUNCTION void InitGetCoeffs(void) { if (GetCoeffs == NULL) { if (VP8GetCPUInfo != NULL && VP8GetCPUInfo(kSlowSSSE3)) { GetCoeffs = GetCoeffsAlt; diff --git a/media/libwebp/dec/vp8_dec.h b/media/libwebp/dec/vp8_dec.h index b9337bbec..7b4941d65 100644 --- a/media/libwebp/dec/vp8_dec.h +++ b/media/libwebp/dec/vp8_dec.h @@ -11,8 +11,8 @@ // // Author: Skal (pascal.massimino@gmail.com) -#ifndef WEBP_WEBP_DECODE_VP8_H_ -#define WEBP_WEBP_DECODE_VP8_H_ +#ifndef WEBP_DEC_VP8_DEC_H_ +#define WEBP_DEC_VP8_DEC_H_ #include "../webp/decode.h" @@ -33,7 +33,7 @@ extern "C" { // /* customize io's functions (setup()/put()/teardown()) if needed. */ // // VP8Decoder* dec = VP8New(); -// bool ok = VP8Decode(dec); +// int ok = VP8Decode(dec, &io); // if (!ok) printf("Error: %s\n", VP8StatusMessage(dec)); // VP8Delete(dec); // return ok; @@ -157,24 +157,24 @@ void VP8Delete(VP8Decoder* const dec); // Miscellaneous VP8/VP8L bitstream probing functions. // Returns true if the next 3 bytes in data contain the VP8 signature. -WEBP_EXTERN(int) VP8CheckSignature(const uint8_t* const data, size_t data_size); +WEBP_EXTERN int VP8CheckSignature(const uint8_t* const data, size_t data_size); // Validates the VP8 data-header and retrieves basic header information viz // width and height. Returns 0 in case of formatting error. *width/*height // can be passed NULL. -WEBP_EXTERN(int) VP8GetInfo( +WEBP_EXTERN int VP8GetInfo( const uint8_t* data, size_t data_size, // data available so far size_t chunk_size, // total data size expected in the chunk int* const width, int* const height); // Returns true if the next byte(s) in data is a VP8L signature. -WEBP_EXTERN(int) VP8LCheckSignature(const uint8_t* const data, size_t size); +WEBP_EXTERN int VP8LCheckSignature(const uint8_t* const data, size_t size); // Validates the VP8L data-header and retrieves basic header information viz // width, height and alpha. Returns 0 in case of formatting error. // width/height/has_alpha can be passed NULL. -WEBP_EXTERN(int) VP8LGetInfo( +WEBP_EXTERN int VP8LGetInfo( const uint8_t* data, size_t data_size, // data available so far int* const width, int* const height, int* const has_alpha); @@ -182,4 +182,4 @@ WEBP_EXTERN(int) VP8LGetInfo( } // extern "C" #endif -#endif /* WEBP_WEBP_DECODE_VP8_H_ */ +#endif /* WEBP_DEC_VP8_DEC_H_ */ diff --git a/media/libwebp/dec/vp8i_dec.h b/media/libwebp/dec/vp8i_dec.h index 555853e8f..d0ef67b91 100644 --- a/media/libwebp/dec/vp8i_dec.h +++ b/media/libwebp/dec/vp8i_dec.h @@ -11,12 +11,12 @@ // // Author: Skal (pascal.massimino@gmail.com) -#ifndef WEBP_DEC_VP8I_H_ -#define WEBP_DEC_VP8I_H_ +#ifndef WEBP_DEC_VP8I_DEC_H_ +#define WEBP_DEC_VP8I_DEC_H_ #include <string.h> // for memcpy() -#include "./common_dec.h" -#include "./vp8li_dec.h" +#include "../dec/common_dec.h" +#include "../dec/vp8li_dec.h" #include "../utils/bit_reader_utils.h" #include "../utils/random_utils.h" #include "../utils/thread_utils.h" @@ -30,8 +30,8 @@ extern "C" { // Various defines and enums // version numbers -#define DEC_MAJ_VERSION 0 -#define DEC_MIN_VERSION 6 +#define DEC_MAJ_VERSION 1 +#define DEC_MIN_VERSION 0 #define DEC_REV_VERSION 0 // YUV-cache parameters. Cache is 32-bytes wide (= one cacheline). @@ -57,7 +57,6 @@ extern "C" { // '|' = left sample, '-' = top sample, '+' = top-left sample // 't' = extra top-right sample for 4x4 modes #define YUV_SIZE (BPS * 17 + BPS * 9) -#define Y_SIZE (BPS * 17) #define Y_OFF (BPS * 1 + 8) #define U_OFF (Y_OFF + BPS * 16 + BPS) #define V_OFF (U_OFF + 16) @@ -317,4 +316,4 @@ const uint8_t* VP8DecompressAlphaRows(VP8Decoder* const dec, } // extern "C" #endif -#endif /* WEBP_DEC_VP8I_H_ */ +#endif /* WEBP_DEC_VP8I_DEC_H_ */ diff --git a/media/libwebp/dec/vp8l_dec.c b/media/libwebp/dec/vp8l_dec.c index ef359a91f..6af696ddc 100644 --- a/media/libwebp/dec/vp8l_dec.c +++ b/media/libwebp/dec/vp8l_dec.c @@ -14,8 +14,8 @@ #include <stdlib.h> -#include "./alphai_dec.h" -#include "./vp8li_dec.h" +#include "../dec/alphai_dec.h" +#include "../dec/vp8li_dec.h" #include "../dsp/dsp.h" #include "../dsp/lossless.h" #include "../dsp/lossless_common.h" @@ -28,8 +28,8 @@ static const int kCodeLengthLiterals = 16; static const int kCodeLengthRepeatCode = 16; -static const int kCodeLengthExtraBits[3] = { 2, 3, 7 }; -static const int kCodeLengthRepeatOffsets[3] = { 3, 3, 11 }; +static const uint8_t kCodeLengthExtraBits[3] = { 2, 3, 7 }; +static const uint8_t kCodeLengthRepeatOffsets[3] = { 3, 3, 11 }; // ----------------------------------------------------------------------------- // Five Huffman codes are used at each meta code: @@ -86,7 +86,7 @@ static const uint8_t kCodeToPlane[CODE_TO_PLANE_CODES] = { // All values computed for 8-bit first level lookup with Mark Adler's tool: // http://www.hdfgroup.org/ftp/lib-external/zlib/zlib-1.2.5/examples/enough.c #define FIXED_TABLE_SIZE (630 * 3 + 410) -static const int kTableSize[12] = { +static const uint16_t kTableSize[12] = { FIXED_TABLE_SIZE + 654, FIXED_TABLE_SIZE + 656, FIXED_TABLE_SIZE + 658, @@ -485,6 +485,7 @@ static int ReadHuffmanCodes(VP8LDecoder* const dec, int xsize, int ysize, //------------------------------------------------------------------------------ // Scaling. +#if !defined(WEBP_REDUCE_SIZE) static int AllocateAndInitRescaler(VP8LDecoder* const dec, VP8Io* const io) { const int num_channels = 4; const int in_width = io->mb_w; @@ -516,10 +517,13 @@ static int AllocateAndInitRescaler(VP8LDecoder* const dec, VP8Io* const io) { out_width, out_height, 0, num_channels, work); return 1; } +#endif // WEBP_REDUCE_SIZE //------------------------------------------------------------------------------ // Export to ARGB +#if !defined(WEBP_REDUCE_SIZE) + // We have special "export" function since we need to convert from BGRA static int Export(WebPRescaler* const rescaler, WEBP_CSP_MODE colorspace, int rgba_stride, uint8_t* const rgba) { @@ -561,6 +565,8 @@ static int EmitRescaledRowsRGBA(const VP8LDecoder* const dec, return num_lines_out; } +#endif // WEBP_REDUCE_SIZE + // Emit rows without any scaling. static int EmitRows(WEBP_CSP_MODE colorspace, const uint8_t* row_in, int in_stride, @@ -746,9 +752,12 @@ static void ProcessRows(VP8LDecoder* const dec, int row) { if (WebPIsRGBMode(output->colorspace)) { // convert to RGBA const WebPRGBABuffer* const buf = &output->u.RGBA; uint8_t* const rgba = buf->rgba + dec->last_out_row_ * buf->stride; - const int num_rows_out = io->use_scaling ? + const int num_rows_out = +#if !defined(WEBP_REDUCE_SIZE) + io->use_scaling ? EmitRescaledRowsRGBA(dec, rows_data, in_stride, io->mb_h, rgba, buf->stride) : +#endif // WEBP_REDUCE_SIZE EmitRows(output->colorspace, rows_data, in_stride, io->mb_w, io->mb_h, rgba, buf->stride); // Update 'last_out_row_'. @@ -1012,12 +1021,13 @@ static int DecodeAlphaData(VP8LDecoder* const dec, uint8_t* const data, ok = 0; goto End; } - assert(br->eos_ == VP8LIsEndOfStream(br)); + br->eos_ = VP8LIsEndOfStream(br); } // Process the remaining rows corresponding to last row-block. ExtractPalettedAlphaRows(dec, row > last_row ? last_row : row); End: + br->eos_ = VP8LIsEndOfStream(br); if (!ok || (br->eos_ && pos < end)) { ok = 0; dec->status_ = br->eos_ ? VP8_STATUS_SUSPENDED @@ -1090,11 +1100,12 @@ static int DecodeImageData(VP8LDecoder* const dec, uint32_t* const data, VP8LFillBitWindow(br); if (htree_group->use_packed_table) { code = ReadPackedSymbols(htree_group, br, src); + if (VP8LIsEndOfStream(br)) break; if (code == PACKED_NON_LITERAL_CODE) goto AdvanceByOne; } else { code = ReadSymbol(htree_group->htrees[GREEN], br); } - if (br->eos_) break; // early out + if (VP8LIsEndOfStream(br)) break; if (code < NUM_LITERAL_CODES) { // Literal if (htree_group->is_trivial_literal) { *src = htree_group->literal_arb | (code << 8); @@ -1104,7 +1115,7 @@ static int DecodeImageData(VP8LDecoder* const dec, uint32_t* const data, VP8LFillBitWindow(br); blue = ReadSymbol(htree_group->htrees[BLUE], br); alpha = ReadSymbol(htree_group->htrees[ALPHA], br); - if (br->eos_) break; + if (VP8LIsEndOfStream(br)) break; *src = ((uint32_t)alpha << 24) | (red << 16) | (code << 8) | blue; } AdvanceByOne: @@ -1132,7 +1143,7 @@ static int DecodeImageData(VP8LDecoder* const dec, uint32_t* const data, VP8LFillBitWindow(br); dist_code = GetCopyDistance(dist_symbol, br); dist = PlaneCodeToDistance(width, dist_code); - if (br->eos_) break; + if (VP8LIsEndOfStream(br)) break; if (src - data < (ptrdiff_t)dist || src_end - src < (ptrdiff_t)length) { goto Error; } else { @@ -1169,9 +1180,9 @@ static int DecodeImageData(VP8LDecoder* const dec, uint32_t* const data, } else { // Not reached goto Error; } - assert(br->eos_ == VP8LIsEndOfStream(br)); } + br->eos_ = VP8LIsEndOfStream(br); if (dec->incremental_ && br->eos_ && src < src_end) { RestoreState(dec); } else if (!br->eos_) { @@ -1630,12 +1641,19 @@ int VP8LDecodeImage(VP8LDecoder* const dec) { if (!AllocateInternalBuffers32b(dec, io->width)) goto Err; +#if !defined(WEBP_REDUCE_SIZE) if (io->use_scaling && !AllocateAndInitRescaler(dec, io)) goto Err; - +#else + if (io->use_scaling) { + dec->status_ = VP8_STATUS_INVALID_PARAM; + goto Err; + } +#endif if (io->use_scaling || WebPIsPremultipliedMode(dec->output_->colorspace)) { // need the alpha-multiply functions for premultiplied output or rescaling WebPInitAlphaProcessing(); } + if (!WebPIsRGBMode(dec->output_->colorspace)) { WebPInitConvertARGBToYUV(); if (dec->output_->u.YUVA.a != NULL) WebPInitAlphaProcessing(); diff --git a/media/libwebp/dec/vp8li_dec.h b/media/libwebp/dec/vp8li_dec.h index 097a9d058..ed89a02a9 100644 --- a/media/libwebp/dec/vp8li_dec.h +++ b/media/libwebp/dec/vp8li_dec.h @@ -12,11 +12,11 @@ // Author: Skal (pascal.massimino@gmail.com) // Vikas Arora(vikaas.arora@gmail.com) -#ifndef WEBP_DEC_VP8LI_H_ -#define WEBP_DEC_VP8LI_H_ +#ifndef WEBP_DEC_VP8LI_DEC_H_ +#define WEBP_DEC_VP8LI_DEC_H_ #include <string.h> // for memcpy() -#include "./webpi_dec.h" +#include "../dec/webpi_dec.h" #include "../utils/bit_reader_utils.h" #include "../utils/color_cache_utils.h" #include "../utils/huffman_utils.h" @@ -132,4 +132,4 @@ void VP8LDelete(VP8LDecoder* const dec); } // extern "C" #endif -#endif /* WEBP_DEC_VP8LI_H_ */ +#endif /* WEBP_DEC_VP8LI_DEC_H_ */ diff --git a/media/libwebp/dec/webp_dec.c b/media/libwebp/dec/webp_dec.c index a8e9c2c51..89c264d0a 100644 --- a/media/libwebp/dec/webp_dec.c +++ b/media/libwebp/dec/webp_dec.c @@ -13,9 +13,9 @@ #include <stdlib.h> -#include "./vp8i_dec.h" -#include "./vp8li_dec.h" -#include "./webpi_dec.h" +#include "../dec/vp8i_dec.h" +#include "../dec/vp8li_dec.h" +#include "../dec/webpi_dec.h" #include "../utils/utils.h" #include "../webp/mux_types.h" // ALPHA_FLAG @@ -421,7 +421,9 @@ VP8StatusCode WebPParseHeaders(WebPHeaderStructure* const headers) { NULL, NULL, NULL, &has_animation, NULL, headers); if (status == VP8_STATUS_OK || status == VP8_STATUS_NOT_ENOUGH_DATA) { - // TODO(jzern): full support of animation frames will require API additions. + // The WebPDemux API + libwebp can be used to decode individual + // uncomposited frames or the WebPAnimDecoder can be used to fully + // reconstruct them (see webp/demux.h). if (has_animation) { status = VP8_STATUS_UNSUPPORTED_FEATURE; } diff --git a/media/libwebp/dec/webpi_dec.h b/media/libwebp/dec/webpi_dec.h index 696abc195..d0a045e70 100644 --- a/media/libwebp/dec/webpi_dec.h +++ b/media/libwebp/dec/webpi_dec.h @@ -11,15 +11,15 @@ // // Author: somnath@google.com (Somnath Banerjee) -#ifndef WEBP_DEC_WEBPI_H_ -#define WEBP_DEC_WEBPI_H_ +#ifndef WEBP_DEC_WEBPI_DEC_H_ +#define WEBP_DEC_WEBPI_DEC_H_ #ifdef __cplusplus extern "C" { #endif #include "../utils/rescaler_utils.h" -#include "./vp8_dec.h" +#include "../dec/vp8_dec.h" //------------------------------------------------------------------------------ // WebPDecParams: Decoding output parameters. Transient internal object. @@ -130,4 +130,4 @@ int WebPAvoidSlowMemory(const WebPDecBuffer* const output, } // extern "C" #endif -#endif /* WEBP_DEC_WEBPI_H_ */ +#endif /* WEBP_DEC_WEBPI_DEC_H_ */ |