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Dmitry Kovalev authored3bb2ae5c
/* * Copyright (c) 2010 The WebM project authors. All Rights Reserved. * * Use of this source code is governed by a BSD-style license * that can be found in the LICENSE file in the root of the source * tree. An additional intellectual property rights grant can be found * in the file PATENTS. All contributing project authors may * be found in the AUTHORS file in the root of the source tree. */#include <math.h>#include <stdarg.h>#include <stdio.h>#include <stdlib.h>#include <string.h>#include "./tools_common.h"#if CONFIG_VP8_ENCODER || CONFIG_VP9_ENCODER#include "vpx/vp8cx.h"#endif#if CONFIG_VP8_DECODER || CONFIG_VP9_DECODER#include "vpx/vp8dx.h"#endif#if defined(_WIN32) || defined(__OS2__)#include <io.h>#include <fcntl.h>#ifdef __OS2__#define _setmode setmode#define _fileno fileno#define _O_BINARY O_BINARY#endif#endif#define LOG_ERROR(label) do {\ const char *l = label;\ va_list ap;\ va_start(ap, fmt);\ if (l)\ fprintf(stderr, "%s: ", l);\ vfprintf(stderr, fmt, ap);\ fprintf(stderr, "\n");\ va_end(ap);\} while (0)FILE *set_binary_mode(FILE *stream) { (void)stream;#if defined(_WIN32) || defined(__OS2__) _setmode(_fileno(stream), _O_BINARY);#endif return stream;}void die(const char *fmt, ...) { LOG_ERROR(NULL); usage_exit();}void fatal(const char *fmt, ...) { LOG_ERROR("Fatal"); exit(EXIT_FAILURE);}void warn(const char *fmt, ...) { LOG_ERROR("Warning");}7172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140
void die_codec(vpx_codec_ctx_t *ctx, const char *s) {
const char *detail = vpx_codec_error_detail(ctx);
printf("%s: %s\n", s, vpx_codec_error(ctx));
if (detail)
printf(" %s\n", detail);
exit(EXIT_FAILURE);
}
int read_yuv_frame(struct VpxInputContext *input_ctx, vpx_image_t *yuv_frame) {
FILE *f = input_ctx->file;
struct FileTypeDetectionBuffer *detect = &input_ctx->detect;
int plane = 0;
int shortread = 0;
for (plane = 0; plane < 3; ++plane) {
uint8_t *ptr;
const int w = (plane ? (1 + yuv_frame->d_w) / 2 : yuv_frame->d_w);
const int h = (plane ? (1 + yuv_frame->d_h) / 2 : yuv_frame->d_h);
int r;
/* Determine the correct plane based on the image format. The for-loop
* always counts in Y,U,V order, but this may not match the order of
* the data on disk.
*/
switch (plane) {
case 1:
ptr = yuv_frame->planes[
yuv_frame->fmt == VPX_IMG_FMT_YV12 ? VPX_PLANE_V : VPX_PLANE_U];
break;
case 2:
ptr = yuv_frame->planes[
yuv_frame->fmt == VPX_IMG_FMT_YV12 ? VPX_PLANE_U : VPX_PLANE_V];
break;
default:
ptr = yuv_frame->planes[plane];
}
for (r = 0; r < h; ++r) {
size_t needed = w;
size_t buf_position = 0;
const size_t left = detect->buf_read - detect->position;
if (left > 0) {
const size_t more = (left < needed) ? left : needed;
memcpy(ptr, detect->buf + detect->position, more);
buf_position = more;
needed -= more;
detect->position += more;
}
if (needed > 0) {
shortread |= (fread(ptr + buf_position, 1, needed, f) < needed);
}
ptr += yuv_frame->stride[plane];
}
}
return shortread;
}
static const VpxInterface vpx_encoders[] = {
#if CONFIG_VP8_ENCODER
{"vp8", VP8_FOURCC, &vpx_codec_vp8_cx},
#endif
#if CONFIG_VP9_ENCODER
{"vp9", VP9_FOURCC, &vpx_codec_vp9_cx},
#endif
};
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int get_vpx_encoder_count() {
return sizeof(vpx_encoders) / sizeof(vpx_encoders[0]);
}
const VpxInterface *get_vpx_encoder_by_index(int i) {
return &vpx_encoders[i];
}
const VpxInterface *get_vpx_encoder_by_name(const char *name) {
int i;
for (i = 0; i < get_vpx_encoder_count(); ++i) {
const VpxInterface *encoder = get_vpx_encoder_by_index(i);
if (strcmp(encoder->name, name) == 0)
return encoder;
}
return NULL;
}
static const VpxInterface vpx_decoders[] = {
#if CONFIG_VP8_DECODER
{"vp8", VP8_FOURCC, &vpx_codec_vp8_dx},
#endif
#if CONFIG_VP9_DECODER
{"vp9", VP9_FOURCC, &vpx_codec_vp9_dx},
#endif
};
int get_vpx_decoder_count() {
return sizeof(vpx_decoders) / sizeof(vpx_decoders[0]);
}
const VpxInterface *get_vpx_decoder_by_index(int i) {
return &vpx_decoders[i];
}
const VpxInterface *get_vpx_decoder_by_name(const char *name) {
int i;
for (i = 0; i < get_vpx_decoder_count(); ++i) {
const VpxInterface *const decoder = get_vpx_decoder_by_index(i);
if (strcmp(decoder->name, name) == 0)
return decoder;
}
return NULL;
}
const VpxInterface *get_vpx_decoder_by_fourcc(uint32_t fourcc) {
int i;
for (i = 0; i < get_vpx_decoder_count(); ++i) {
const VpxInterface *const decoder = get_vpx_decoder_by_index(i);
if (decoder->fourcc == fourcc)
return decoder;
}
return NULL;
}
// TODO(dkovalev): move this function to vpx_image.{c, h}, so it will be part
// of vpx_image_t support
int vpx_img_plane_width(const vpx_image_t *img, int plane) {
if (plane > 0 && img->x_chroma_shift > 0)
return (img->d_w + 1) >> img->x_chroma_shift;
else
return img->d_w;
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}
int vpx_img_plane_height(const vpx_image_t *img, int plane) {
if (plane > 0 && img->y_chroma_shift > 0)
return (img->d_h + 1) >> img->y_chroma_shift;
else
return img->d_h;
}
void vpx_img_write(const vpx_image_t *img, FILE *file) {
int plane;
for (plane = 0; plane < 3; ++plane) {
const unsigned char *buf = img->planes[plane];
const int stride = img->stride[plane];
const int w = vpx_img_plane_width(img, plane);
const int h = vpx_img_plane_height(img, plane);
int y;
for (y = 0; y < h; ++y) {
fwrite(buf, 1, w, file);
buf += stride;
}
}
}
int vpx_img_read(vpx_image_t *img, FILE *file) {
int plane;
for (plane = 0; plane < 3; ++plane) {
unsigned char *buf = img->planes[plane];
const int stride = img->stride[plane];
const int w = vpx_img_plane_width(img, plane);
const int h = vpx_img_plane_height(img, plane);
int y;
for (y = 0; y < h; ++y) {
if (fread(buf, 1, w, file) != w)
return 0;
buf += stride;
}
}
return 1;
}
// TODO(dkovalev) change sse_to_psnr signature: double -> int64_t
double sse_to_psnr(double samples, double peak, double sse) {
static const double kMaxPSNR = 100.0;
if (sse > 0.0) {
const double psnr = 10.0 * log10(samples * peak * peak / sse);
return psnr > kMaxPSNR ? kMaxPSNR : psnr;
} else {
return kMaxPSNR;
}
}