105 lines
2.7 KiB
C
105 lines
2.7 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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/*
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@*INTRODUCTION
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*/
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#include "vpx_config.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdarg.h>
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#include <string.h>
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#define VPX_CODEC_DISABLE_COMPAT 1
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#include "vpx/vpx_decoder.h"
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#include "vpx/vp8dx.h"
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#define interface (vpx_codec_vp8_dx())
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@EXTRA_INCLUDES
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#define IVF_FILE_HDR_SZ (32)
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#define IVF_FRAME_HDR_SZ (12)
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static unsigned int mem_get_le32(const unsigned char *mem) {
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return (mem[3] << 24)|(mem[2] << 16)|(mem[1] << 8)|(mem[0]);
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}
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static void die(const char *fmt, ...) {
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va_list ap;
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va_start(ap, fmt);
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vprintf(fmt, ap);
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if(fmt[strlen(fmt)-1] != '\n')
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printf("\n");
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exit(EXIT_FAILURE);
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}
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@DIE_CODEC
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@HELPERS
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int main(int argc, char **argv) {
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FILE *infile, *outfile;
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vpx_codec_ctx_t codec;
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int flags = 0, frame_cnt = 0;
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unsigned char file_hdr[IVF_FILE_HDR_SZ];
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unsigned char frame_hdr[IVF_FRAME_HDR_SZ];
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unsigned char frame[256*1024];
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vpx_codec_err_t res;
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@@@@EXTRA_VARS
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(void)res;
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/* Open files */
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@@@@USAGE
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if(!(infile = fopen(argv[1], "rb")))
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die("Failed to open %s for reading", argv[1]);
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if(!(outfile = fopen(argv[2], "wb")))
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die("Failed to open %s for writing", argv[2]);
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/* Read file header */
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if(!(fread(file_hdr, 1, IVF_FILE_HDR_SZ, infile) == IVF_FILE_HDR_SZ
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&& file_hdr[0]=='D' && file_hdr[1]=='K' && file_hdr[2]=='I'
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&& file_hdr[3]=='F'))
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die("%s is not an IVF file.", argv[1]);
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printf("Using %s\n",vpx_codec_iface_name(interface));
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@@@@DEC_INIT
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/* Read each frame */
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while(fread(frame_hdr, 1, IVF_FRAME_HDR_SZ, infile) == IVF_FRAME_HDR_SZ) {
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int frame_sz = mem_get_le32(frame_hdr);
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vpx_codec_iter_t iter = NULL;
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vpx_image_t *img;
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frame_cnt++;
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if(frame_sz > sizeof(frame))
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die("Frame %d data too big for example code buffer", frame_sz);
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if(fread(frame, 1, frame_sz, infile) != frame_sz)
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die("Frame %d failed to read complete frame", frame_cnt);
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@@@@@@@@PRE_DECODE
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@@@@@@@@DECODE
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/* Write decoded data to disk */
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@@@@@@@@GET_FRAME
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unsigned int plane, y;
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@@@@@@@@@@@@PROCESS_DX
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}
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}
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printf("Processed %d frames.\n",frame_cnt);
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@@@@DESTROY
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fclose(outfile);
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fclose(infile);
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return EXIT_SUCCESS;
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}
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