487 строки
13 KiB
C
487 строки
13 KiB
C
/*
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* Copyright (c) 2010 The WebM project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include <math.h>
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#include <stdarg.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "./tools_common.h"
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#if CONFIG_VP10_ENCODER
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#include "vpx/vp8cx.h"
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#endif
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#if CONFIG_VP10_DECODER
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#include "vpx/vp8dx.h"
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#endif
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#if defined(_WIN32) || defined(__OS2__)
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#include <io.h>
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#include <fcntl.h>
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#ifdef __OS2__
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#define _setmode setmode
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#define _fileno fileno
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#define _O_BINARY O_BINARY
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#endif
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#endif
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#define LOG_ERROR(label) do {\
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const char *l = label;\
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va_list ap;\
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va_start(ap, fmt);\
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if (l)\
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fprintf(stderr, "%s: ", l);\
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vfprintf(stderr, fmt, ap);\
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fprintf(stderr, "\n");\
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va_end(ap);\
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} while (0)
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FILE *set_binary_mode(FILE *stream) {
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(void)stream;
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#if defined(_WIN32) || defined(__OS2__)
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_setmode(_fileno(stream), _O_BINARY);
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#endif
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return stream;
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}
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void die(const char *fmt, ...) {
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LOG_ERROR(NULL);
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usage_exit();
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}
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void fatal(const char *fmt, ...) {
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LOG_ERROR("Fatal");
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exit(EXIT_FAILURE);
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}
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void warn(const char *fmt, ...) {
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LOG_ERROR("Warning");
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}
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void die_codec(vpx_codec_ctx_t *ctx, const char *s) {
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const char *detail = vpx_codec_error_detail(ctx);
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printf("%s: %s\n", s, vpx_codec_error(ctx));
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if (detail)
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printf(" %s\n", detail);
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exit(EXIT_FAILURE);
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}
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int read_yuv_frame(struct VpxInputContext *input_ctx, vpx_image_t *yuv_frame) {
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FILE *f = input_ctx->file;
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struct FileTypeDetectionBuffer *detect = &input_ctx->detect;
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int plane = 0;
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int shortread = 0;
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const int bytespp = (yuv_frame->fmt & VPX_IMG_FMT_HIGHBITDEPTH) ? 2 : 1;
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for (plane = 0; plane < 3; ++plane) {
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uint8_t *ptr;
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const int w = vpx_img_plane_width(yuv_frame, plane);
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const int h = vpx_img_plane_height(yuv_frame, plane);
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int r;
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/* Determine the correct plane based on the image format. The for-loop
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* always counts in Y,U,V order, but this may not match the order of
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* the data on disk.
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*/
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switch (plane) {
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case 1:
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ptr = yuv_frame->planes[
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yuv_frame->fmt == VPX_IMG_FMT_YV12 ? VPX_PLANE_V : VPX_PLANE_U];
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break;
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case 2:
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ptr = yuv_frame->planes[
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yuv_frame->fmt == VPX_IMG_FMT_YV12 ? VPX_PLANE_U : VPX_PLANE_V];
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break;
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default:
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ptr = yuv_frame->planes[plane];
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}
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for (r = 0; r < h; ++r) {
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size_t needed = w * bytespp;
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size_t buf_position = 0;
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const size_t left = detect->buf_read - detect->position;
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if (left > 0) {
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const size_t more = (left < needed) ? left : needed;
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memcpy(ptr, detect->buf + detect->position, more);
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buf_position = more;
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needed -= more;
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detect->position += more;
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}
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if (needed > 0) {
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shortread |= (fread(ptr + buf_position, 1, needed, f) < needed);
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}
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ptr += yuv_frame->stride[plane];
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}
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}
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return shortread;
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}
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#if CONFIG_ENCODERS
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static const VpxInterface vpx_encoders[] = {
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#if CONFIG_VP10_ENCODER
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{"vp10", VP10_FOURCC, &vpx_codec_vp10_cx},
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#endif
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};
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int get_vpx_encoder_count(void) {
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return sizeof(vpx_encoders) / sizeof(vpx_encoders[0]);
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}
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const VpxInterface *get_vpx_encoder_by_index(int i) {
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return &vpx_encoders[i];
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}
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const VpxInterface *get_vpx_encoder_by_name(const char *name) {
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int i;
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for (i = 0; i < get_vpx_encoder_count(); ++i) {
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const VpxInterface *encoder = get_vpx_encoder_by_index(i);
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if (strcmp(encoder->name, name) == 0)
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return encoder;
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}
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return NULL;
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}
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#endif // CONFIG_ENCODERS
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#if CONFIG_DECODERS
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static const VpxInterface vpx_decoders[] = {
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#if CONFIG_VP10_DECODER
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{"vp10", VP10_FOURCC, &vpx_codec_vp10_dx},
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#endif
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};
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int get_vpx_decoder_count(void) {
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return sizeof(vpx_decoders) / sizeof(vpx_decoders[0]);
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}
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const VpxInterface *get_vpx_decoder_by_index(int i) {
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return &vpx_decoders[i];
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}
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const VpxInterface *get_vpx_decoder_by_name(const char *name) {
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int i;
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for (i = 0; i < get_vpx_decoder_count(); ++i) {
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const VpxInterface *const decoder = get_vpx_decoder_by_index(i);
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if (strcmp(decoder->name, name) == 0)
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return decoder;
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}
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return NULL;
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}
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const VpxInterface *get_vpx_decoder_by_fourcc(uint32_t fourcc) {
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int i;
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for (i = 0; i < get_vpx_decoder_count(); ++i) {
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const VpxInterface *const decoder = get_vpx_decoder_by_index(i);
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if (decoder->fourcc == fourcc)
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return decoder;
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}
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return NULL;
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}
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#endif // CONFIG_DECODERS
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// TODO(dkovalev): move this function to vpx_image.{c, h}, so it will be part
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// of vpx_image_t support
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int vpx_img_plane_width(const vpx_image_t *img, int plane) {
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if (plane > 0 && img->x_chroma_shift > 0)
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return (img->d_w + 1) >> img->x_chroma_shift;
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else
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return img->d_w;
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}
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int vpx_img_plane_height(const vpx_image_t *img, int plane) {
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if (plane > 0 && img->y_chroma_shift > 0)
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return (img->d_h + 1) >> img->y_chroma_shift;
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else
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return img->d_h;
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}
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void vpx_img_write(const vpx_image_t *img, FILE *file) {
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int plane;
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for (plane = 0; plane < 3; ++plane) {
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const unsigned char *buf = img->planes[plane];
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const int stride = img->stride[plane];
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const int w = vpx_img_plane_width(img, plane) *
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((img->fmt & VPX_IMG_FMT_HIGHBITDEPTH) ? 2 : 1);
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const int h = vpx_img_plane_height(img, plane);
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int y;
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for (y = 0; y < h; ++y) {
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fwrite(buf, 1, w, file);
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buf += stride;
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}
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}
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}
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int vpx_img_read(vpx_image_t *img, FILE *file) {
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int plane;
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for (plane = 0; plane < 3; ++plane) {
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unsigned char *buf = img->planes[plane];
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const int stride = img->stride[plane];
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const int w = vpx_img_plane_width(img, plane) *
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((img->fmt & VPX_IMG_FMT_HIGHBITDEPTH) ? 2 : 1);
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const int h = vpx_img_plane_height(img, plane);
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int y;
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for (y = 0; y < h; ++y) {
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if (fread(buf, 1, w, file) != (size_t)w)
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return 0;
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buf += stride;
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}
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}
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return 1;
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}
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// TODO(dkovalev) change sse_to_psnr signature: double -> int64_t
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double sse_to_psnr(double samples, double peak, double sse) {
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static const double kMaxPSNR = 100.0;
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if (sse > 0.0) {
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const double psnr = 10.0 * log10(samples * peak * peak / sse);
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return psnr > kMaxPSNR ? kMaxPSNR : psnr;
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} else {
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return kMaxPSNR;
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}
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}
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// TODO(debargha): Consolidate the functions below into a separate file.
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#if CONFIG_VPX_HIGHBITDEPTH
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static void highbd_img_upshift(vpx_image_t *dst, vpx_image_t *src,
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int input_shift) {
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// Note the offset is 1 less than half.
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const int offset = input_shift > 0 ? (1 << (input_shift - 1)) - 1 : 0;
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int plane;
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if (dst->d_w != src->d_w || dst->d_h != src->d_h ||
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dst->x_chroma_shift != src->x_chroma_shift ||
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dst->y_chroma_shift != src->y_chroma_shift ||
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dst->fmt != src->fmt || input_shift < 0) {
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fatal("Unsupported image conversion");
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}
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switch (src->fmt) {
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case VPX_IMG_FMT_I42016:
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case VPX_IMG_FMT_I42216:
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case VPX_IMG_FMT_I44416:
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case VPX_IMG_FMT_I44016:
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break;
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default:
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fatal("Unsupported image conversion");
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break;
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}
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for (plane = 0; plane < 3; plane++) {
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int w = src->d_w;
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int h = src->d_h;
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int x, y;
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if (plane) {
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w = (w + src->x_chroma_shift) >> src->x_chroma_shift;
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h = (h + src->y_chroma_shift) >> src->y_chroma_shift;
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}
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for (y = 0; y < h; y++) {
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uint16_t *p_src =
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(uint16_t *)(src->planes[plane] + y * src->stride[plane]);
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uint16_t *p_dst =
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(uint16_t *)(dst->planes[plane] + y * dst->stride[plane]);
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for (x = 0; x < w; x++)
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*p_dst++ = (*p_src++ << input_shift) + offset;
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}
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}
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}
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static void lowbd_img_upshift(vpx_image_t *dst, vpx_image_t *src,
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int input_shift) {
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// Note the offset is 1 less than half.
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const int offset = input_shift > 0 ? (1 << (input_shift - 1)) - 1 : 0;
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int plane;
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if (dst->d_w != src->d_w || dst->d_h != src->d_h ||
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dst->x_chroma_shift != src->x_chroma_shift ||
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dst->y_chroma_shift != src->y_chroma_shift ||
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dst->fmt != src->fmt + VPX_IMG_FMT_HIGHBITDEPTH ||
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input_shift < 0) {
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fatal("Unsupported image conversion");
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}
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switch (src->fmt) {
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case VPX_IMG_FMT_I420:
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case VPX_IMG_FMT_I422:
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case VPX_IMG_FMT_I444:
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case VPX_IMG_FMT_I440:
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break;
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default:
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fatal("Unsupported image conversion");
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break;
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}
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for (plane = 0; plane < 3; plane++) {
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int w = src->d_w;
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int h = src->d_h;
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int x, y;
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if (plane) {
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w = (w + src->x_chroma_shift) >> src->x_chroma_shift;
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h = (h + src->y_chroma_shift) >> src->y_chroma_shift;
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}
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for (y = 0; y < h; y++) {
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uint8_t *p_src = src->planes[plane] + y * src->stride[plane];
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uint16_t *p_dst =
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(uint16_t *)(dst->planes[plane] + y * dst->stride[plane]);
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for (x = 0; x < w; x++) {
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*p_dst++ = (*p_src++ << input_shift) + offset;
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}
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}
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}
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}
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void vpx_img_upshift(vpx_image_t *dst, vpx_image_t *src,
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int input_shift) {
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if (src->fmt & VPX_IMG_FMT_HIGHBITDEPTH) {
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highbd_img_upshift(dst, src, input_shift);
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} else {
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lowbd_img_upshift(dst, src, input_shift);
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}
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}
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void vpx_img_truncate_16_to_8(vpx_image_t *dst, vpx_image_t *src) {
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int plane;
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if (dst->fmt + VPX_IMG_FMT_HIGHBITDEPTH != src->fmt ||
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dst->d_w != src->d_w || dst->d_h != src->d_h ||
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dst->x_chroma_shift != src->x_chroma_shift ||
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dst->y_chroma_shift != src->y_chroma_shift) {
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fatal("Unsupported image conversion");
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}
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switch (dst->fmt) {
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case VPX_IMG_FMT_I420:
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case VPX_IMG_FMT_I422:
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case VPX_IMG_FMT_I444:
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case VPX_IMG_FMT_I440:
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break;
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default:
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fatal("Unsupported image conversion");
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break;
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}
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for (plane = 0; plane < 3; plane++) {
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int w = src->d_w;
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int h = src->d_h;
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int x, y;
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if (plane) {
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w = (w + src->x_chroma_shift) >> src->x_chroma_shift;
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h = (h + src->y_chroma_shift) >> src->y_chroma_shift;
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}
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for (y = 0; y < h; y++) {
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uint16_t *p_src =
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(uint16_t *)(src->planes[plane] + y * src->stride[plane]);
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uint8_t *p_dst = dst->planes[plane] + y * dst->stride[plane];
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for (x = 0; x < w; x++) {
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*p_dst++ = (uint8_t)(*p_src++);
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}
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}
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}
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}
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static void highbd_img_downshift(vpx_image_t *dst, vpx_image_t *src,
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int down_shift) {
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int plane;
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if (dst->d_w != src->d_w || dst->d_h != src->d_h ||
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dst->x_chroma_shift != src->x_chroma_shift ||
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dst->y_chroma_shift != src->y_chroma_shift ||
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dst->fmt != src->fmt || down_shift < 0) {
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fatal("Unsupported image conversion");
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}
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switch (src->fmt) {
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case VPX_IMG_FMT_I42016:
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case VPX_IMG_FMT_I42216:
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case VPX_IMG_FMT_I44416:
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case VPX_IMG_FMT_I44016:
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break;
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default:
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fatal("Unsupported image conversion");
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break;
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}
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for (plane = 0; plane < 3; plane++) {
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int w = src->d_w;
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int h = src->d_h;
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int x, y;
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if (plane) {
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w = (w + src->x_chroma_shift) >> src->x_chroma_shift;
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h = (h + src->y_chroma_shift) >> src->y_chroma_shift;
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}
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for (y = 0; y < h; y++) {
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uint16_t *p_src =
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(uint16_t *)(src->planes[plane] + y * src->stride[plane]);
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uint16_t *p_dst =
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(uint16_t *)(dst->planes[plane] + y * dst->stride[plane]);
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for (x = 0; x < w; x++)
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*p_dst++ = *p_src++ >> down_shift;
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}
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}
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}
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static void lowbd_img_downshift(vpx_image_t *dst, vpx_image_t *src,
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int down_shift) {
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int plane;
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if (dst->d_w != src->d_w || dst->d_h != src->d_h ||
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dst->x_chroma_shift != src->x_chroma_shift ||
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dst->y_chroma_shift != src->y_chroma_shift ||
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src->fmt != dst->fmt + VPX_IMG_FMT_HIGHBITDEPTH ||
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down_shift < 0) {
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fatal("Unsupported image conversion");
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}
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switch (dst->fmt) {
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case VPX_IMG_FMT_I420:
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case VPX_IMG_FMT_I422:
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case VPX_IMG_FMT_I444:
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case VPX_IMG_FMT_I440:
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break;
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default:
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fatal("Unsupported image conversion");
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break;
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}
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for (plane = 0; plane < 3; plane++) {
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int w = src->d_w;
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int h = src->d_h;
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int x, y;
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if (plane) {
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w = (w + src->x_chroma_shift) >> src->x_chroma_shift;
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h = (h + src->y_chroma_shift) >> src->y_chroma_shift;
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}
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for (y = 0; y < h; y++) {
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uint16_t *p_src =
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(uint16_t *)(src->planes[plane] + y * src->stride[plane]);
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uint8_t *p_dst = dst->planes[plane] + y * dst->stride[plane];
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for (x = 0; x < w; x++) {
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*p_dst++ = *p_src++ >> down_shift;
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}
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}
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}
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}
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void vpx_img_downshift(vpx_image_t *dst, vpx_image_t *src,
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int down_shift) {
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if (dst->fmt & VPX_IMG_FMT_HIGHBITDEPTH) {
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highbd_img_downshift(dst, src, down_shift);
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} else {
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lowbd_img_downshift(dst, src, down_shift);
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}
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}
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#endif // CONFIG_VPX_HIGHBITDEPTH
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