00a35aab7c
- 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
133 lines
3.1 KiB
C
133 lines
3.1 KiB
C
/*
|
|
* 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;
|
|
}
|
|
|
|
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;
|
|
}
|