-
Tom Finegan authored
- Move IVF reading support into ivfdec.c and ivfdec.h - Move IVF writing support into ivfenc.c and ivfenc.h - Removed IVF writing code from the SVC example in favor of ivfenc. Change-Id: I70adf6240d0320fdd232d8546ed573f0f68dd793
00a35aab
/* * 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 "tools_common.h"#include <stdarg.h>#include <stdio.h>#include <stdlib.h>#include <string.h>#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");}uint16_t mem_get_le16(const void *data) { uint16_t val; const uint8_t *mem = (const uint8_t*)data; val = mem[1] << 8; val |= mem[0]; return val;}7172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133
uint32_t mem_get_le32(const void *data) {
uint32_t val;
const uint8_t *mem = (const uint8_t*)data;
val = mem[3] << 24;
val |= mem[2] << 16;
val |= mem[1] << 8;
val |= mem[0];
return val;
}
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;
}