| // Copyright 2019 Joe Drago. All rights reserved. |
| // SPDX-License-Identifier: BSD-2-Clause |
| |
| #include "avif/avif.h" |
| |
| #include "avifutil.h" |
| #include "y4m.h" |
| |
| #include <stdio.h> |
| #include <string.h> |
| |
| static int syntax(void) |
| { |
| printf("Syntax: avifdec [options] input.avif output.y4m\n"); |
| printf("Options:\n"); |
| printf(" -h,--help : Show syntax help\n"); |
| printf("\n"); |
| return 0; |
| } |
| |
| int main(int argc, char * argv[]) |
| { |
| const char * inputFilename = NULL; |
| const char * outputFilename = NULL; |
| |
| if (argc < 2) { |
| return syntax(); |
| } |
| |
| int argIndex = 1; |
| while (argIndex < argc) { |
| const char * arg = argv[argIndex]; |
| |
| if (!strcmp(arg, "-h") || !strcmp(arg, "--help")) { |
| return syntax(); |
| } else { |
| // Positional argument |
| if (!inputFilename) { |
| inputFilename = arg; |
| } else if (!outputFilename) { |
| outputFilename = arg; |
| } else { |
| fprintf(stderr, "Too many positional arguments: %s\n", arg); |
| return 1; |
| } |
| } |
| |
| ++argIndex; |
| } |
| |
| if (!inputFilename || !outputFilename) { |
| return syntax(); |
| } |
| |
| FILE * inputFile = fopen(inputFilename, "rb"); |
| if (!inputFile) { |
| fprintf(stderr, "Cannot open file for read: %s\n", inputFilename); |
| return 1; |
| } |
| fseek(inputFile, 0, SEEK_END); |
| size_t inputFileSize = ftell(inputFile); |
| fseek(inputFile, 0, SEEK_SET); |
| |
| if (inputFileSize < 1) { |
| fprintf(stderr, "File too small: %s\n", inputFilename); |
| fclose(inputFile); |
| return 1; |
| } |
| |
| avifRWData raw = AVIF_DATA_EMPTY; |
| avifRWDataRealloc(&raw, inputFileSize); |
| if (fread(raw.data, 1, inputFileSize, inputFile) != inputFileSize) { |
| fprintf(stderr, "Failed to read %zu bytes: %s\n", inputFileSize, inputFilename); |
| fclose(inputFile); |
| avifRWDataFree(&raw); |
| return 1; |
| } |
| |
| fclose(inputFile); |
| inputFile = NULL; |
| |
| avifImage * avif = avifImageCreateEmpty(); |
| avifDecoder * decoder = avifDecoderCreate(); |
| avifResult decodeResult = avifDecoderRead(decoder, avif, (avifROData *)&raw); |
| if (decodeResult == AVIF_RESULT_OK) { |
| printf("Image decoded: %s\n", inputFilename); |
| printf("Image details:\n"); |
| avifImageDump(avif); |
| y4mWrite(avif, outputFilename); |
| } else { |
| printf("ERROR: Failed to decode image: %s\n", avifResultToString(decodeResult)); |
| } |
| avifRWDataFree(&raw); |
| avifDecoderDestroy(decoder); |
| avifImageDestroy(avif); |
| return 0; |
| } |