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Adapting simple_decoder to use new file reading API.

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Change-Id: I374a0c4bb4a66c0d3dc874c6e57fdee9d1ab72df
This commit is contained in:
Dmitry Kovalev 2014-01-27 13:40:29 -08:00
parent 442ff059c3
commit 7ec2769687
6 changed files with 111 additions and 115 deletions
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6
examples.mk
View File

@ -70,8 +70,10 @@ vp9_spatial_scalable_encoder.DESCRIPTION = Spatial Scalable Encoder
#example_xma.DESCRIPTION = External Memory Allocation mode usage
GEN_EXAMPLES-$(CONFIG_VP8_DECODER) += simple_decoder.c
simple_decoder.GUID = D3BBF1E9-2427-450D-BBFF-B2843C1D44CC
simple_decoder.DESCRIPTION = Simplified decoder loop
simple_decoder.GUID = D3BBF1E9-2427-450D-BBFF-B2843C1D44CC
simple_decoder.SRCS += ivfdec.h ivfdec.c
simple_decoder.SRCS += tools_common.h tools_common.c
simple_decoder.DESCRIPTION = Simplified decoder loop
GEN_EXAMPLES-$(CONFIG_VP8_DECODER) += postproc.c
postproc.GUID = 65E33355-F35E-4088-884D-3FD4905881D7
postproc.DESCRIPTION = Decoder postprocessor control

23
examples/decode_to_md5.c
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@ -29,7 +29,6 @@
// 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>
@ -44,28 +43,6 @@
#include "./tools_common.h"
#include "./vpx_config.h"
#define VP8_FOURCC 0x30385056
#define VP9_FOURCC 0x30395056
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 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);
}
static void get_image_md5(const vpx_image_t *img, unsigned char digest[16]) {
int plane, y;
MD5Context md5;

136
examples/simple_decoder.c
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@ -77,110 +77,82 @@
// few exeptions, vpx_codec functions return an enumerated error status,
// with the value `0` indicating success.
#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"
#define interface (vpx_codec_vp8_dx())
#include "./ivfdec.h"
#include "./tools_common.h"
#include "./vpx_config.h"
#define IVF_FILE_HDR_SZ (32)
#define IVF_FRAME_HDR_SZ (12)
static const char *exec_name;
static unsigned int mem_get_le32(const unsigned char *mem) {
return (mem[3] << 24)|(mem[2] << 16)|(mem[1] << 8)|(mem[0]);
void usage_exit() {
fprintf(stderr, "Usage: %s <infile> <outfile>\n", exec_name);
exit(EXIT_FAILURE);
}
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);
}
int main(int argc, char **argv) {
FILE *infile, *outfile;
vpx_codec_ctx_t codec;
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_codec_err_t res;
FILE *infile, *outfile;
vpx_codec_ctx_t codec;
vpx_codec_iface_t *iface;
int flags = 0, frame_cnt = 0;
vpx_video_t *video;
(void)res;
/* Open files */
if(argc!=3)
die("Usage: %s <infile> <outfile>\n", argv[0]);
if(!(infile = fopen(argv[1], "rb")))
die("Failed to open %s for reading", argv[1]);
if(!(outfile = fopen(argv[2], "wb")))
die("Failed to open %s for writing", argv[2]);
exec_name = argv[0];
/* Read file header */
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'))
die("%s is not an IVF file.", argv[1]);
if (argc != 3)
die("Invalid number of arguments");
printf("Using %s\n",vpx_codec_iface_name(interface));
/* Initialize codec */
if(vpx_codec_dec_init(&codec, interface, NULL, flags))
die_codec(&codec, "Failed to initialize decoder");
if (!(infile = fopen(argv[1], "rb")))
die("Failed to open %s for reading", argv[1]);
/* Read each frame */
while(fread(frame_hdr, 1, IVF_FRAME_HDR_SZ, infile) == IVF_FRAME_HDR_SZ) {
int frame_sz = mem_get_le32(frame_hdr);
vpx_codec_iter_t iter = NULL;
vpx_image_t *img;
if (!(outfile = fopen(argv[2], "wb")))
die("Failed to open %s for writing", argv[2]);
video = vpx_video_open_file(infile);
if (!video)
die("%s is not an IVF file.", argv[1]);
frame_cnt++;
if(frame_sz > sizeof(frame))
die("Frame %d data too big for example code buffer", frame_sz);
if(fread(frame, 1, frame_sz, infile) != frame_sz)
die("Frame %d failed to read complete frame", frame_cnt);
iface = get_codec_interface(vpx_video_get_fourcc(video));
if (!iface)
die("Unknown FOURCC code.");
/* Decode the frame */
if(vpx_codec_decode(&codec, frame, frame_sz, NULL, 0))
die_codec(&codec, "Failed to decode frame");
printf("Using %s\n", vpx_codec_iface_name(iface));
/* Write decoded data to disk */
while((img = vpx_codec_get_frame(&codec, &iter))) {
unsigned int plane, y;
if (vpx_codec_dec_init(&codec, iface, NULL, flags))
die_codec(&codec, "Failed to initialize decoder");
for(plane=0; plane < 3; plane++) {
unsigned char *buf =img->planes[plane];
while (vpx_video_read_frame(video)) {
vpx_codec_iter_t iter = NULL;
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");
for(y=0; y < (plane ? (img->d_h + 1) >> 1 : img->d_h); y++) {
(void) fwrite(buf, 1, (plane ? (img->d_w + 1) >> 1 : img->d_w),
outfile);
buf += img->stride[plane];
}
}
}
while ((img = vpx_codec_get_frame(&codec, &iter)) != NULL) {
vpx_img_write(img, outfile);
++frame_cnt;
}
printf("Processed %d frames.\n",frame_cnt);
if(vpx_codec_destroy(&codec))
die_codec(&codec, "Failed to destroy codec");
}
fclose(outfile);
fclose(infile);
return EXIT_SUCCESS;
printf("Processed %d frames.\n", frame_cnt);
if (vpx_codec_destroy(&codec))
die_codec(&codec, "Failed to destroy codec");
printf("Play: ffplay -f rawvideo -pix_fmt yuv420p -s %dx%d %s\n",
vpx_video_get_width(video), vpx_video_get_height(video), argv[2]);
vpx_video_close(video);
fclose(outfile);
fclose(infile);
return EXIT_SUCCESS;
}

44
tools_common.c
View File

@ -15,6 +15,10 @@
#include <stdlib.h>
#include <string.h>
#if CONFIG_VP8_DECODER || CONFIG_VP9_DECODER
#include "vpx/vp8dx.h"
#endif
#if defined(_WIN32) || defined(__OS2__)
#include <io.h>
#include <fcntl.h>
@ -60,6 +64,15 @@ void warn(const char *fmt, ...) {
LOG_ERROR("Warning");
}
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);
}
uint16_t mem_get_le16(const void *data) {
uint16_t val;
const uint8_t *mem = (const uint8_t*)data;
@ -130,3 +143,34 @@ int read_yuv_frame(struct VpxInputContext *input_ctx, vpx_image_t *yuv_frame) {
return shortread;
}
vpx_codec_iface_t *get_codec_interface(unsigned int fourcc) {
switch (fourcc) {
#if CONFIG_VP8_DECODER
case VP8_FOURCC:
return vpx_codec_vp8_dx();
#endif
#if CONFIG_VP9_DECODER
case VP9_FOURCC:
return vpx_codec_vp9_dx();
#endif
default:
return NULL;
}
return NULL;
}
void vpx_img_write(const vpx_image_t *img, FILE *file) {
int plane, y;
for (plane = 0; plane < 3; ++plane) {
const unsigned char *buf = img->planes[plane];
const int stride = img->stride[plane];
const int w = plane ? (img->d_w + 1) >> 1 : img->d_w;
const int h = plane ? (img->d_h + 1) >> 1 : img->d_h;
for (y = 0; y < h; ++y) {
fwrite(buf, 1, w, file);
buf += stride;
}
}
}

9
tools_common.h
View File

@ -13,6 +13,7 @@
#include <stdio.h>
#include "./vpx_config.h"
#include "vpx/vpx_codec.h"
#include "vpx/vpx_image.h"
#include "vpx/vpx_integer.h"
@ -112,6 +113,8 @@ void die(const char *fmt, ...);
void fatal(const char *fmt, ...);
void warn(const char *fmt, ...);
void die_codec(vpx_codec_ctx_t *ctx, const char *s);
/* The tool including this file must define usage_exit() */
void usage_exit();
@ -120,6 +123,12 @@ uint32_t mem_get_le32(const void *data);
int read_yuv_frame(struct VpxInputContext *input_ctx, vpx_image_t *yuv_frame);
vpx_codec_iface_t *get_codec_interface(unsigned int fourcc);
// TODO(dkovalev): move this function to vpx_image.{c, h}, so it will be part
// of vpx_image_t support
void vpx_img_write(const vpx_image_t *img, FILE *file);
#ifdef __cplusplus
} /* extern "C" */
#endif

8
vp9_spatial_scalable_encoder.c
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@ -89,14 +89,6 @@ void usage_exit() {
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);
}
static void parse_command_line(int argc, const char **argv_,
AppInput *app_input, SvcContext *svc_ctx,
vpx_codec_enc_cfg_t *enc_cfg) {