diff options
Diffstat (limited to 'examples/decode_to_md5.c')
-rw-r--r-- | examples/decode_to_md5.c | 86 |
1 files changed, 26 insertions, 60 deletions
diff --git a/examples/decode_to_md5.c b/examples/decode_to_md5.c index 2ceb17a35..bba218209 100644 --- a/examples/decode_to_md5.c +++ b/examples/decode_to_md5.c @@ -29,54 +29,19 @@ // is processed, then U, then V. It is important to honor the image's `stride` // values. -#include <stdarg.h> #include <stdio.h> #include <stdlib.h> #include <string.h> + #define VPX_CODEC_DISABLE_COMPAT 1 -#include "./vpx_config.h" + #include "vpx/vp8dx.h" #include "vpx/vpx_decoder.h" -#include "md5_utils.h" - -#define VP8_FOURCC 0x30385056 -#define VP9_FOURCC 0x30395056 - -#define IVF_FILE_HDR_SZ (32) -#define IVF_FRAME_HDR_SZ (12) - -static vpx_codec_iface_t *get_codec_interface(unsigned int fourcc) { - switch (fourcc) { - case VP8_FOURCC: - return vpx_codec_vp8_dx(); - case VP9_FOURCC: - return vpx_codec_vp9_dx(); - } - return NULL; -} - -static unsigned int mem_get_le32(const unsigned char *mem) { - return (mem[3] << 24) | (mem[2] << 16) | (mem[1] << 8) | (mem[0]); -} - -static void die(const char *fmt, ...) { - va_list ap; - - va_start(ap, fmt); - vprintf(fmt, ap); - if (fmt[strlen(fmt) - 1] != '\n') - printf("\n"); - exit(EXIT_FAILURE); -} -static 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); -} +#include "./ivfdec.h" +#include "./md5_utils.h" +#include "./tools_common.h" +#include "./vpx_config.h" static void get_image_md5(const vpx_image_t *img, unsigned char digest[16]) { int plane, y; @@ -106,17 +71,24 @@ static void print_md5(FILE *stream, unsigned char digest[16]) { fprintf(stream, "%02x", digest[i]); } +static const char *exec_name; + +void usage_exit() { + fprintf(stderr, "Usage: %s <infile> <outfile>\n", exec_name); + exit(EXIT_FAILURE); +} + int main(int argc, char **argv) { FILE *infile, *outfile; vpx_codec_ctx_t codec; vpx_codec_iface_t *iface; int flags = 0, frame_cnt = 0; - unsigned char file_hdr[IVF_FILE_HDR_SZ]; - unsigned char frame_hdr[IVF_FRAME_HDR_SZ]; - unsigned char frame[256 * 1024]; + vpx_video_t *video; + + exec_name = argv[0]; if (argc != 3) - die("Usage: %s <infile> <outfile>\n", argv[0]); + die("Invalid number of arguments"); if (!(infile = fopen(argv[1], "rb"))) die("Failed to open %s for reading", argv[1]); @@ -124,32 +96,24 @@ int main(int argc, char **argv) { if (!(outfile = fopen(argv[2], "wb"))) die("Failed to open %s for writing", argv[2]); - if (!(fread(file_hdr, 1, IVF_FILE_HDR_SZ, infile) == IVF_FILE_HDR_SZ && - file_hdr[0] == 'D' && file_hdr[1] == 'K' && - file_hdr[2] == 'I' && file_hdr[3] == 'F')) + video = vpx_video_open_file(infile); + if (!video) die("%s is not an IVF file.", argv[1]); - iface = get_codec_interface(mem_get_le32(file_hdr + 8)); + iface = get_codec_interface(vpx_video_get_fourcc(video)); if (!iface) die("Unknown FOURCC code."); - printf("Using %s\n", vpx_codec_iface_name(iface)); if (vpx_codec_dec_init(&codec, iface, NULL, flags)) die_codec(&codec, "Failed to initialize decoder"); - while (fread(frame_hdr, 1, IVF_FRAME_HDR_SZ, infile) == IVF_FRAME_HDR_SZ) { - const int frame_size = mem_get_le32(frame_hdr); + while (vpx_video_read_frame(video)) { vpx_codec_iter_t iter = NULL; - vpx_image_t *img; - - if (frame_size > sizeof(frame)) - die("Frame %d data too big for example code buffer", frame_size); - - if (fread(frame, 1, frame_size, infile) != frame_size) - die("Failed to read complete frame"); - + vpx_image_t *img = NULL; + size_t frame_size = 0; + const unsigned char *frame = vpx_video_get_frame(video, &frame_size); if (vpx_codec_decode(&codec, frame, frame_size, NULL, 0)) die_codec(&codec, "Failed to decode frame"); @@ -167,6 +131,8 @@ int main(int argc, char **argv) { if (vpx_codec_destroy(&codec)) die_codec(&codec, "Failed to destroy codec"); + vpx_video_close(video); + fclose(outfile); fclose(infile); return EXIT_SUCCESS; |