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Adapting postproc example to use new file reading API.

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Change-Id: Ib3747c81db8cc89b5d7012db557411a3b49712aa
This commit is contained in:
Dmitry Kovalev 2014-01-28 11:27:30 -08:00
parent c382136122
commit 2e862ce71c
2 changed files with 83 additions and 106 deletions
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2
examples.mk
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@ -79,6 +79,8 @@ simple_decoder.SRCS += ivfdec.h ivfdec.c
simple_decoder.SRCS += tools_common.h tools_common.c
simple_decoder.DESCRIPTION = Simplified decoder loop
GEN_EXAMPLES-$(CONFIG_VP8_DECODER) += postproc.c
postproc.SRCS += ivfdec.h ivfdec.c
postproc.SRCS += tools_common.h tools_common.c
postproc.GUID = 65E33355-F35E-4088-884D-3FD4905881D7
postproc.DESCRIPTION = Decoder postprocessor control
GEN_EXAMPLES-$(CONFIG_VP8_DECODER) += decode_to_md5.c

125
examples/postproc.c
View File

@ -39,129 +39,104 @@
// postprocessors. VP8 is one example. The following sample code toggles
// postprocessing on and off every 15 frames.
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "./ivfdec.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 "./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]);
}
static void die(const char *fmt, ...) {
va_list ap;
va_start(ap, fmt);
vprintf(fmt, ap);
if(fmt[strlen(fmt)-1] != '\n')
printf("\n");
void usage_exit() {
fprintf(stderr, "Usage: %s <infile> <outfile>\n", exec_name);
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_iface_t *iface;
int frame_cnt = 0;
vpx_video_t *video;
vpx_codec_err_t res;
(void)res;
/* Open files */
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]);
if (!(outfile = fopen(argv[2], "wb")))
die("Failed to open %s for writing", argv[2]);
/* 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]);
video = vpx_video_open_file(infile);
if (!video)
die("%s is not a supported input file.", argv[1]);
printf("Using %s\n",vpx_codec_iface_name(interface));
/* Initialize codec */
res = vpx_codec_dec_init(&codec, interface, NULL,
VPX_CODEC_USE_POSTPROC);
iface = get_codec_interface(vpx_video_get_fourcc(video));
if (!iface)
die("Unknown FOURCC code.");
printf("Using %s\n", vpx_codec_iface_name(iface));
res = vpx_codec_dec_init(&codec, iface, NULL, VPX_CODEC_USE_POSTPROC);
if (res == VPX_CODEC_INCAPABLE) {
printf("NOTICE: Postproc not supported by %s\n",
vpx_codec_iface_name(interface));
res = vpx_codec_dec_init(&codec, interface, NULL, flags);
printf("NOTICE: Postproc not supported.\n");
res = vpx_codec_dec_init(&codec, iface, NULL, 0);
}
if (res)
die_codec(&codec, "Failed to initialize decoder");
/* 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);
while (vpx_video_read_frame(video)) {
vpx_codec_iter_t iter = NULL;
vpx_image_t *img;
vpx_image_t *img = NULL;
size_t frame_size = 0;
const unsigned char *frame = vpx_video_get_frame(video, &frame_size);
++frame_cnt;
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);
#if CONFIG_VP9_DECODER
if (frame_cnt % 30 == 1) {
vp8_postproc_cfg_t pp = {0, 0, 0};
if (vpx_codec_control(&codec, VP8_SET_POSTPROC, &pp))
die_codec(&codec, "Failed to turn off postproc");
} else if (frame_cnt % 30 == 16) {
vp8_postproc_cfg_t pp = {VP8_DEBLOCK | VP8_DEMACROBLOCK | VP8_MFQE, 4, 0};
vp8_postproc_cfg_t pp = {VP8_DEBLOCK | VP8_DEMACROBLOCK | VP8_MFQE,
4, 0};
if (vpx_codec_control(&codec, VP8_SET_POSTPROC, &pp))
die_codec(&codec, "Failed to turn on postproc");
};
#endif
/* Decode the frame with 15ms deadline */
if(vpx_codec_decode(&codec, frame, frame_sz, NULL, 15000))
// Decode the frame with 15ms deadline
if (vpx_codec_decode(&codec, frame, frame_size, NULL, 15000))
die_codec(&codec, "Failed to decode frame");
/* Write decoded data to disk */
while((img = vpx_codec_get_frame(&codec, &iter))) {
unsigned int plane, y;
while ((img = vpx_codec_get_frame(&codec, &iter)) != NULL) {
vpx_img_write(img, outfile);
}
}
for(plane=0; plane < 3; plane++) {
unsigned char *buf =img->planes[plane];
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];
}
}
}
}
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;