ref: 8d02833a61d2dc00ec846229d8e2deee05e4b9e9
parent: c6fd0a5dd65f0723dbabed2f17f12c87b37aab7a
author: Marco Paniconi <marpan@google.com>
date: Tue Sep 11 09:15:51 EDT 2012
Updates to vp8_scalable_patterns.c. Updated/added a few cases of temporal patterns, and some changes to the encoder settings. Change-Id: Idaa75cfc4a26e5b6321f273ef9450b5c85368a4d
--- a/vp8_scalable_patterns.c
+++ b/vp8_scalable_patterns.c
@@ -114,7 +114,7 @@
(void) fwrite(header, 1, 12, outfile);
}
-static int mode_to_num_layers[9] = {2, 2, 3, 3, 3, 3, 5, 2, 3};+static int mode_to_num_layers[12] = {1, 2, 2, 3, 3, 3, 3, 5, 2, 3, 3, 3}; int main(int argc, char **argv) {FILE *infile, *outfile[VPX_TS_MAX_LAYERS];
@@ -150,8 +150,8 @@
if (!sscanf(argv[7], "%d", &layering_mode))
die ("Invalid mode %s", argv[7]);- if (layering_mode<0 || layering_mode>8)
- die ("Invalid mode (0..8) %s", argv[7]);+ if (layering_mode<0 || layering_mode>11)
+ die ("Invalid mode (0..11) %s", argv[7]);if (argc != 8+mode_to_num_layers[layering_mode])
die ("Invalid number of arguments");@@ -186,7 +186,7 @@
cfg.rc_dropframe_thresh = 0;
cfg.rc_end_usage = VPX_CBR;
cfg.rc_resize_allowed = 0;
- cfg.rc_min_quantizer = 8;
+ cfg.rc_min_quantizer = 2;
cfg.rc_max_quantizer = 56;
cfg.rc_undershoot_pct = 100;
cfg.rc_overshoot_pct = 15;
@@ -200,8 +200,11 @@
cfg.kf_mode = VPX_KF_DISABLED;
/* Disable automatic keyframe placement */
- cfg.kf_min_dist = cfg.kf_max_dist = 1000;
+ cfg.kf_min_dist = cfg.kf_max_dist = 3000;
+ /* Default setting for bitrate: used in special case of 1 layer (case 0). */
+ cfg.rc_target_bitrate = cfg.ts_target_bitrate[0];
+
/* Temporal scaling parameters: */
/* NOTE: The 3 prediction frames cannot be used interchangeably due to
* differences in the way they are handled throughout the code. The
@@ -210,9 +213,25 @@
*/
switch (layering_mode)
{-
case 0:
{+ /* 1-layer */
+ int ids[1] = {0};+ cfg.ts_number_layers = 1;
+ cfg.ts_periodicity = 1;
+ cfg.ts_rate_decimator[0] = 1;
+ memcpy(cfg.ts_layer_id, ids, sizeof(ids));
+
+ flag_periodicity = cfg.ts_periodicity;
+
+ // Predict from L only.
+ layer_flags[0] = VPX_EFLAG_FORCE_KF |
+ VP8_EFLAG_NO_UPD_GF | VP8_EFLAG_NO_UPD_ARF |
+ VP8_EFLAG_NO_REF_GF | VP8_EFLAG_NO_REF_ARF;
+ break;
+ }
+ case 1:
+ {/* 2-layers, 2-frame period */
int ids[2] = {0,1};cfg.ts_number_layers = 2;
@@ -240,7 +259,7 @@
break;
}
- case 1:
+ case 2:
{/* 2-layers, 3-frame period */
int ids[3] = {0,1,1};@@ -263,7 +282,7 @@
break;
}
- case 2:
+ case 3:
{/* 3-layers, 6-frame period */
int ids[6] = {0,2,2,1,2,2};@@ -289,7 +308,7 @@
break;
}
- case 3:
+ case 4:
{/* 3-layers, 4-frame period */
int ids[4] = {0,2,1,2};@@ -316,7 +335,7 @@
break;
}
- case 4:
+ case 5:
{/* 3-layers, 4-frame period */
int ids[4] = {0,2,1,2};@@ -344,7 +363,7 @@
break;
}
- case 5:
+ case 6:
{/* 3-layers, 4-frame period */
int ids[4] = {0,2,1,2};@@ -368,7 +387,7 @@
break;
}
- case 6:
+ case 7:
{/* NOTE: Probably of academic interest only */
@@ -407,7 +426,7 @@
break;
}
- case 7:
+ case 8:
{/* 2-layers */
int ids[2] = {0,1};@@ -439,10 +458,11 @@
break;
}
- case 8:
- default:
+ case 9:
{/* 3-layers */
+ // Sync points for layer 1 and 2 every 8 frames.
+
int ids[4] = {0,2,1,2};cfg.ts_number_layers = 3;
cfg.ts_periodicity = 4;
@@ -472,8 +492,104 @@
VP8_EFLAG_NO_UPD_ENTROPY;
break;
}
+ case 10:
+ {+ // 3-layers structure where ARF is used as predictor for all frames,
+ // and is only updated on key frame.
+ // Sync points for layer 1 and 2 every 8 frames.
+
+ int ids[4] = {0,2,1,2};+ cfg.ts_number_layers = 3;
+ cfg.ts_periodicity = 4;
+ cfg.ts_rate_decimator[0] = 4;
+ cfg.ts_rate_decimator[1] = 2;
+ cfg.ts_rate_decimator[2] = 1;
+ memcpy(cfg.ts_layer_id, ids, sizeof(ids));
+
+ flag_periodicity = 8;
+
+ /* 0=L, 1=GF, 2=ARF */
+
+ // Layer 0: predict from L and ARF; update L and G.
+ layer_flags[0] = VPX_EFLAG_FORCE_KF |
+ VP8_EFLAG_NO_UPD_ARF |
+ VP8_EFLAG_NO_REF_GF;
+
+ // Layer 2: sync point: predict from L and ARF; update none.
+ layer_flags[1] = VP8_EFLAG_NO_REF_GF |
+ VP8_EFLAG_NO_UPD_GF |
+ VP8_EFLAG_NO_UPD_ARF |
+ VP8_EFLAG_NO_UPD_LAST |
+ VP8_EFLAG_NO_UPD_ENTROPY;
+
+ // Layer 1: sync point: predict from L and ARF; update G.
+ layer_flags[2] = VP8_EFLAG_NO_REF_GF |
+ VP8_EFLAG_NO_UPD_ARF |
+ VP8_EFLAG_NO_UPD_LAST;
+
+ // Layer 2: predict from L, G, ARF; update none.
+ layer_flags[3] = VP8_EFLAG_NO_UPD_GF |
+ VP8_EFLAG_NO_UPD_ARF |
+ VP8_EFLAG_NO_UPD_LAST |
+ VP8_EFLAG_NO_UPD_ENTROPY;
+
+ // Layer 0: predict from L and ARF; update L.
+ layer_flags[4] = VP8_EFLAG_NO_UPD_GF |
+ VP8_EFLAG_NO_UPD_ARF |
+ VP8_EFLAG_NO_REF_GF;
+
+ // Layer 2: predict from L, G, ARF; update none.
+ layer_flags[5] = layer_flags[3];
+
+ // Layer 1: predict from L, G, ARF; update G.
+ layer_flags[6] = VP8_EFLAG_NO_UPD_ARF |
+ VP8_EFLAG_NO_UPD_LAST;
+
+ // Layer 2: predict from L, G, ARF; update none.
+ layer_flags[7] = layer_flags[3];
+ break;
}
+ case 11:
+ default:
+ {+ // 3-layers structure as in case 10, but no sync/refresh points for
+ // layer 1 and 2.
+ int ids[4] = {0,2,1,2};+ cfg.ts_number_layers = 3;
+ cfg.ts_periodicity = 4;
+ cfg.ts_rate_decimator[0] = 4;
+ cfg.ts_rate_decimator[1] = 2;
+ cfg.ts_rate_decimator[2] = 1;
+ memcpy(cfg.ts_layer_id, ids, sizeof(ids));
+
+ flag_periodicity = 8;
+
+ /* 0=L, 1=GF, 2=ARF */
+
+ // Layer 0: predict from L and ARF; update L.
+ layer_flags[0] = VP8_EFLAG_NO_UPD_GF |
+ VP8_EFLAG_NO_UPD_ARF |
+ VP8_EFLAG_NO_REF_GF;
+ layer_flags[4] = layer_flags[0];
+
+ // Layer 1: predict from L, G, ARF; update G.
+ layer_flags[2] = VP8_EFLAG_NO_UPD_ARF |
+ VP8_EFLAG_NO_UPD_LAST;
+ layer_flags[6] = layer_flags[2];
+
+ // Layer 2: predict from L, G, ARF; update none.
+ layer_flags[1] = VP8_EFLAG_NO_UPD_GF |
+ VP8_EFLAG_NO_UPD_ARF |
+ VP8_EFLAG_NO_UPD_LAST |
+ VP8_EFLAG_NO_UPD_ENTROPY;
+ layer_flags[3] = layer_flags[1];
+ layer_flags[5] = layer_flags[1];
+ layer_flags[7] = layer_flags[1];
+ break;
+ }
+ }
+
/* Open input file */
if(!(infile = fopen(argv[1], "rb")))
die("Failed to open %s for reading", argv[1]);@@ -494,8 +610,9 @@
/* Cap CPU & first I-frame size */
vpx_codec_control (&codec, VP8E_SET_CPUUSED, -6);
- vpx_codec_control (&codec, VP8E_SET_STATIC_THRESHOLD, 800);
+ vpx_codec_control (&codec, VP8E_SET_STATIC_THRESHOLD, 1);
vpx_codec_control (&codec, VP8E_SET_NOISE_SENSITIVITY, 1);
+ vpx_codec_control(&codec, VP8E_SET_TOKEN_PARTITIONS, 1);
max_intra_size_pct = (int) (((double)cfg.rc_buf_optimal_sz * 0.5)
* ((double) cfg.g_timebase.den / cfg.g_timebase.num)
@@ -518,7 +635,7 @@
die_codec(&codec, "Failed to encode frame");
/* Reset KF flag */
- if (layering_mode != 6)
+ if (layering_mode != 7)
layer_flags[0] &= ~VPX_EFLAG_FORCE_KF;
got_data = 0;
@@ -538,14 +655,10 @@
default:
break;
}
- printf (pkt->kind == VPX_CODEC_CX_FRAME_PKT
- && (pkt->data.frame.flags & VPX_FRAME_IS_KEY)? "K":".");
- fflush (stdout);
}
frame_cnt++;
pts += frame_duration;
}
- printf ("\n");fclose (infile);
printf ("Processed %d frames.\n",frame_cnt-1);