exit(EXIT_FAILURE);
}
+int (*read_frame_p)(FILE *f, vpx_image_t *img);
+
static int read_frame(FILE *f, vpx_image_t *img) {
size_t nbytes, to_read;
int res = 1;
return res;
}
+static int read_frame_by_row(FILE *f, vpx_image_t *img) {
+ size_t nbytes, to_read;
+ int res = 1;
+ int plane;
+
+ for (plane = 0; plane < 3; plane++)
+ {
+ unsigned char *ptr;
+ int w = (plane ? (1 + img->d_w) / 2 : img->d_w);
+ int h = (plane ? (1 + img->d_h) / 2 : img->d_h);
+ int r;
+
+ /* Determine the correct plane based on the image format. The for-loop
+ * always counts in Y,U,V order, but this may not match the order of
+ * the data on disk.
+ */
+ switch (plane)
+ {
+ case 1:
+ ptr = img->planes[img->fmt==VPX_IMG_FMT_YV12? VPX_PLANE_V : VPX_PLANE_U];
+ break;
+ case 2:
+ ptr = img->planes[img->fmt==VPX_IMG_FMT_YV12?VPX_PLANE_U : VPX_PLANE_V];
+ break;
+ default:
+ ptr = img->planes[plane];
+ }
+
+ for (r = 0; r < h; r++)
+ {
+ to_read = w;
+
+ nbytes = fread(ptr, 1, to_read, f);
+ if(nbytes != to_read) {
+ res = 0;
+ if(nbytes > 0)
+ printf("Warning: Read partial frame. Check your width & height!\n");
+ break;
+ }
+
+ ptr += img->stride[plane];
+ }
+ if (!res)
+ break;
+ }
+
+ return res;
+}
+
static void write_ivf_file_header(FILE *outfile,
const vpx_codec_enc_cfg_t *cfg,
int frame_cnt) {
double psnr_totals[NUM_ENCODERS][4] = {{0,0}};
int psnr_count[NUM_ENCODERS] = {0};
- /* Set the required target bitrates for each resolution level. */
+ /* Set the required target bitrates for each resolution level.
+ * If target bitrate for highest-resolution level is set to 0,
+ * (i.e. target_bitrate[0]=0), we skip encoding at that level.
+ */
unsigned int target_bitrate[NUM_ENCODERS]={1400, 500, 100};
/* Enter the frame rate of the input video */
int framerate = 30;
/* Open output file for each encoder to output bitstreams */
for (i=0; i< NUM_ENCODERS; i++)
{
+ if(!target_bitrate[i])
+ {
+ outfile[i] = NULL;
+ continue;
+ }
+
if(!(outfile[i] = fopen(argv[i+4], "wb")))
die("Failed to open %s for writing", argv[i+4]);
}
cfg[0].g_lag_in_frames = 0;
/* Disable automatic keyframe placement */
+ /* Note: These 3 settings are copied to all levels. But, except the lowest
+ * resolution level, all other levels are set to VPX_KF_DISABLED internally.
+ */
//cfg[0].kf_mode = VPX_KF_DISABLED;
- cfg[0].kf_min_dist = cfg[0].kf_max_dist = 1000;
+ cfg[0].kf_mode = VPX_KF_AUTO;
+ cfg[0].kf_min_dist = 0;
+ cfg[0].kf_max_dist = 150;
cfg[0].rc_target_bitrate = target_bitrate[0]; /* Set target bitrate */
cfg[0].g_timebase.num = 1; /* Set fps */
/* Allocate image for each encoder */
for (i=0; i< NUM_ENCODERS; i++)
- if(!vpx_img_alloc(&raw[i], VPX_IMG_FMT_I420, cfg[i].g_w, cfg[i].g_h, 1))
+ if(!vpx_img_alloc(&raw[i], VPX_IMG_FMT_I420, cfg[i].g_w, cfg[i].g_h, 32))
die("Failed to allocate image", cfg[i].g_w, cfg[i].g_h);
+ if (raw[0].stride[VPX_PLANE_Y] == raw[0].d_w)
+ read_frame_p = read_frame;
+ else
+ read_frame_p = read_frame_by_row;
+
for (i=0; i< NUM_ENCODERS; i++)
- write_ivf_file_header(outfile[i], &cfg[i], 0);
+ if(outfile[i])
+ write_ivf_file_header(outfile[i], &cfg[i], 0);
/* Initialize multi-encoder */
if(vpx_codec_enc_init_multi(&codec[0], interface, &cfg[0], NUM_ENCODERS,
const vpx_codec_cx_pkt_t *pkt[NUM_ENCODERS];
flags = 0;
- frame_avail = read_frame(infile, &raw[0]);
+ frame_avail = read_frame_p(infile, &raw[0]);
- for ( i=1; i<NUM_ENCODERS; i++)
+ if(frame_avail)
{
- if(frame_avail)
+ for ( i=1; i<NUM_ENCODERS; i++)
{
/*Scale the image down a number of times by downsampling factor*/
- int src_uvwidth = (raw[i-1].d_w + 1) >> 1;
- int src_uvheight = (raw[i-1].d_h + 1) >> 1;
- const unsigned char* src_y = raw[i-1].planes[VPX_PLANE_Y];
- const unsigned char* src_u = raw[i-1].planes[VPX_PLANE_Y]
- + raw[i-1].d_w*raw[i-1].d_h;
- const unsigned char* src_v = raw[i-1].planes[VPX_PLANE_Y]
- + raw[i-1].d_w*raw[i-1].d_h
- + src_uvwidth*src_uvheight;
- int dst_uvwidth = (raw[i].d_w + 1) >> 1;
- int dst_uvheight = (raw[i].d_h + 1) >> 1;
- unsigned char* dst_y = raw[i].planes[VPX_PLANE_Y];
- unsigned char* dst_u = raw[i].planes[VPX_PLANE_Y]
- + raw[i].d_w*raw[i].d_h;
- unsigned char* dst_v = raw[i].planes[VPX_PLANE_Y]
- + raw[i].d_w*raw[i].d_h
- + dst_uvwidth*dst_uvheight;
-
/* FilterMode 1 or 2 give better psnr than FilterMode 0. */
- I420Scale(src_y, raw[i-1].d_w, src_u, src_uvwidth, src_v,
- src_uvwidth, raw[i-1].d_w, raw[i-1].d_h,
- dst_y, raw[i].d_w, dst_u, dst_uvwidth,
- dst_v, dst_uvwidth, raw[i].d_w, raw[i].d_h, 1);
+ I420Scale(raw[i-1].planes[VPX_PLANE_Y], raw[i-1].stride[VPX_PLANE_Y],
+ raw[i-1].planes[VPX_PLANE_U], raw[i-1].stride[VPX_PLANE_U],
+ raw[i-1].planes[VPX_PLANE_V], raw[i-1].stride[VPX_PLANE_V],
+ raw[i-1].d_w, raw[i-1].d_h,
+ raw[i].planes[VPX_PLANE_Y], raw[i].stride[VPX_PLANE_Y],
+ raw[i].planes[VPX_PLANE_U], raw[i].stride[VPX_PLANE_U],
+ raw[i].planes[VPX_PLANE_V], raw[i].stride[VPX_PLANE_V],
+ raw[i].d_w, raw[i].d_h, 1);
}
}
fclose(infile);
+ printf("Processed %ld frames.\n",(long int)frame_cnt-1);
for (i=0; i< NUM_ENCODERS; i++)
{
- printf("Processed %ld frames.\n",(long int)frame_cnt-1);
-
/* Calculate PSNR and print it out */
if ( (show_psnr) && (psnr_count[i]>0) )
{
if(vpx_codec_destroy(&codec[i]))
die_codec(&codec[i], "Failed to destroy codec");
+ vpx_img_free(&raw[i]);
+
+ if(!outfile[i])
+ continue;
+
/* Try to rewrite the file header with the actual frame count */
if(!fseek(outfile[i], 0, SEEK_SET))
write_ivf_file_header(outfile[i], &cfg[i], frame_cnt-1);
fclose(outfile[i]);
-
- vpx_img_free(&raw[i]);
}
+ printf("\n");
return EXIT_SUCCESS;
}
projects / profile / ivi / libvpx.git / blobdiff