ref: a82001b1cfd688601bbda9b08b3d20e9b46b14d4
parent: f6d870f7ae6f968bdbc342af80c8f71fa98f2ac2
parent: 663916cea7b30c157e4df2de541dd196e07e07f6
author: Ivan Maltz <[email protected]>
date: Mon Oct 21 12:28:31 EDT 2013
Merge "SVC improvements"
--- a/libs.mk
+++ b/libs.mk
@@ -122,6 +122,7 @@
CODEC_EXPORTS-yes += $(addprefix $(VP9_PREFIX),$(VP9_CX_EXPORTS))
CODEC_SRCS-yes += $(VP9_PREFIX)vp9cx.mk vpx/vp8.h vpx/vp8cx.h
INSTALL-LIBS-yes += include/vpx/vp8.h include/vpx/vp8cx.h
+ INSTALL-LIBS-yes += include/vpx/svc_context.h
INSTALL_MAPS += include/vpx/% $(SRC_PATH_BARE)/$(VP9_PREFIX)/%
CODEC_DOC_SRCS += vpx/vp8.h vpx/vp8cx.h
CODEC_DOC_SECTIONS += vp9 vp9_encoder
--- /dev/null
+++ b/test/svc_test.cc
@@ -1,0 +1,190 @@
+#include <string>
+#include "third_party/googletest/src/include/gtest/gtest.h"
+#include "test/i420_video_source.h"
+#include "test/decode_test_driver.h"
+#include "vpx/vpx_encoder.h"
+#include "vpx/vp8cx.h"
+#include "test/codec_factory.h"
+
+extern "C" {+#include "vpx/svc_context.h"
+}
+
+namespace {+
+using libvpx_test::CodecFactory;
+using libvpx_test::VP9CodecFactory;
+using libvpx_test::Decoder;
+
+class SvcTest : public ::testing::Test {+ protected:
+ SvcTest()
+ : codec_iface_(0),
+ test_file_name("hantro_collage_w352h288.yuv"),+ decoder_(0) {}+
+ virtual void SetUp() {+ memset(&svc_, 0, sizeof(svc_));
+ svc_.first_frame_full_size = 1;
+ svc_.encoding_mode = INTER_LAYER_PREDICTION_IP;
+ svc_.log_level = SVC_LOG_DEBUG;
+ svc_.log_print = 1;
+ svc_.gop_size = 100;
+
+ codec_iface_ = vpx_codec_vp9_cx();
+ vpx_codec_err_t res =
+ vpx_codec_enc_config_default(codec_iface_, &codec_enc_, 0);
+ EXPECT_EQ(res, VPX_CODEC_OK);
+
+ codec_enc_.g_w = kWidth;
+ codec_enc_.g_h = kHeight;
+ codec_enc_.g_timebase.num = 1;
+ codec_enc_.g_timebase.den = 60;
+
+ vpx_codec_dec_cfg_t dec_cfg = {0};+ VP9CodecFactory codec_factory;
+ decoder_ = codec_factory.CreateDecoder(dec_cfg, 0);
+ }
+
+ SvcContext svc_;
+ vpx_codec_ctx_t codec_;
+ struct vpx_codec_enc_cfg codec_enc_;
+ vpx_codec_iface_t* codec_iface_;
+ std::string test_file_name;
+ enum {+ kWidth = 352,
+ kHeight = 288,
+ };
+
+ Decoder* decoder_;
+};
+
+TEST_F(SvcTest, SvcInit) {+ svc_.spatial_layers = 0; // not enough layers
+ vpx_codec_err_t res = vpx_svc_init(&svc_, &codec_, codec_iface_, &codec_enc_);
+ EXPECT_EQ(res, VPX_CODEC_INVALID_PARAM);
+
+ svc_.spatial_layers = 6; // too many layers
+ res = vpx_svc_init(&svc_, &codec_, codec_iface_, &codec_enc_);
+ EXPECT_EQ(res, VPX_CODEC_INVALID_PARAM);
+
+ svc_.spatial_layers = 2;
+ svc_.scale_factors = "4/16,16*16"; // invalid scale values
+ res = vpx_svc_init(&svc_, &codec_, codec_iface_, &codec_enc_);
+ EXPECT_EQ(res, VPX_CODEC_INVALID_PARAM);
+
+ svc_.scale_factors = "4/16,16/16"; // valid scale values
+
+ res = vpx_svc_init(&svc_, &codec_, codec_iface_, &codec_enc_);
+ EXPECT_EQ(res, VPX_CODEC_OK);
+}
+
+// test that decoder can handle an svc frame as the first frame in a sequence
+// this test is disabled since it with the deco
+TEST_F(SvcTest, DISABLED_FirstFrameHasLayers) {+ svc_.first_frame_full_size = 0;
+ svc_.spatial_layers = 2;
+ svc_.scale_factors = "4/16,16/16";
+ svc_.quantizer_values = "40,30";
+
+ vpx_codec_err_t res =
+ vpx_svc_init(&svc_, &codec_, vpx_codec_vp9_cx(), &codec_enc_);
+ EXPECT_EQ(res, VPX_CODEC_OK);
+
+ libvpx_test::I420VideoSource video(test_file_name, kWidth, kHeight,
+ codec_enc_.g_timebase.den,
+ codec_enc_.g_timebase.num, 0, 30);
+ video.Begin();
+
+ res = vpx_svc_encode(&svc_, &codec_, video.img(), video.pts(),
+ video.duration(), VPX_DL_REALTIME);
+ EXPECT_EQ(res, VPX_CODEC_OK);
+
+ vpx_codec_err_t res_dec = decoder_->DecodeFrame(
+ (const uint8_t*)svc_get_buffer(&svc_), svc_get_frame_size(&svc_));
+
+ // this test fails with a decoder error
+ ASSERT_EQ(VPX_CODEC_OK, res_dec) << decoder_->DecodeError();
+}
+
+TEST_F(SvcTest, EncodeThreeFrames) {+ svc_.first_frame_full_size = 1;
+ svc_.spatial_layers = 2;
+ svc_.scale_factors = "4/16,16/16";
+ svc_.quantizer_values = "40,30";
+
+ vpx_codec_err_t res =
+ vpx_svc_init(&svc_, &codec_, vpx_codec_vp9_cx(), &codec_enc_);
+ ASSERT_EQ(res, VPX_CODEC_OK);
+
+ libvpx_test::I420VideoSource video(test_file_name, kWidth, kHeight,
+ codec_enc_.g_timebase.den,
+ codec_enc_.g_timebase.num, 0, 30);
+ // FRAME 1
+ video.Begin();
+ // this frame is full size, with only one layer
+ res = vpx_svc_encode(&svc_, &codec_, video.img(), video.pts(),
+ video.duration(), VPX_DL_REALTIME);
+ ASSERT_EQ(res, VPX_CODEC_OK);
+ EXPECT_EQ(1, svc_is_keyframe(&svc_));
+
+ vpx_codec_err_t res_dec = decoder_->DecodeFrame(
+ (const uint8_t*)svc_get_buffer(&svc_), svc_get_frame_size(&svc_));
+ ASSERT_EQ(VPX_CODEC_OK, res_dec) << decoder_->DecodeError();
+
+ // FRAME 2
+ video.Next();
+ // this is an I-frame
+ res = vpx_svc_encode(&svc_, &codec_, video.img(), video.pts(),
+ video.duration(), VPX_DL_REALTIME);
+ ASSERT_EQ(res, VPX_CODEC_OK);
+ EXPECT_EQ(1, svc_is_keyframe(&svc_));
+
+ res_dec = decoder_->DecodeFrame((const uint8_t*)svc_get_buffer(&svc_),
+ svc_get_frame_size(&svc_));
+ ASSERT_EQ(VPX_CODEC_OK, res_dec) << decoder_->DecodeError();
+
+ // FRAME 2
+ video.Next();
+ // this is a P-frame
+ res = vpx_svc_encode(&svc_, &codec_, video.img(), video.pts(),
+ video.duration(), VPX_DL_REALTIME);
+ ASSERT_EQ(res, VPX_CODEC_OK);
+ EXPECT_EQ(0, svc_is_keyframe(&svc_));
+
+ res_dec = decoder_->DecodeFrame((const uint8_t*)svc_get_buffer(&svc_),
+ svc_get_frame_size(&svc_));
+ ASSERT_EQ(VPX_CODEC_OK, res_dec) << decoder_->DecodeError();
+}
+
+TEST_F(SvcTest, GetLayerResolution) {+ unsigned int layer_width, layer_height;
+
+ svc_.first_frame_full_size = 0;
+ svc_.spatial_layers = 2;
+ svc_.scale_factors = "4/16,8/16";
+ svc_.quantizer_values = "40,30";
+
+ vpx_codec_err_t res =
+ vpx_svc_init(&svc_, &codec_, vpx_codec_vp9_cx(), &codec_enc_);
+ EXPECT_EQ(res, VPX_CODEC_OK);
+
+ // ensure that requested layer is a valid layer
+ res = svc_get_layer_resolution(&svc_, svc_.spatial_layers, &layer_width,
+ &layer_height);
+ EXPECT_EQ(res, VPX_CODEC_INVALID_PARAM);
+
+ res = svc_get_layer_resolution(&svc_, 0, &layer_width,
+ &layer_height);
+ EXPECT_EQ(res, VPX_CODEC_OK);
+ EXPECT_EQ((unsigned int)(kWidth * 4 / 16), layer_width);
+ EXPECT_EQ((unsigned int)(kHeight * 4 / 16), layer_height);
+
+ res = svc_get_layer_resolution(&svc_, 1, &layer_width,
+ &layer_height);
+ EXPECT_EQ(res, VPX_CODEC_OK);
+ EXPECT_EQ((unsigned int)(kWidth * 8 / 16), layer_width);
+ EXPECT_EQ((unsigned int)(kHeight * 8 / 16), layer_height);
+}
+
+} // namespace
--- a/test/test.mk
+++ b/test/test.mk
@@ -96,6 +96,7 @@
LIBVPX_TEST_SRCS-$(CONFIG_VP9_ENCODER) += dct16x16_test.cc
LIBVPX_TEST_SRCS-$(CONFIG_VP9_ENCODER) += variance_test.cc
LIBVPX_TEST_SRCS-$(CONFIG_VP9_ENCODER) += dct32x32_test.cc
+LIBVPX_TEST_SRCS-$(CONFIG_VP9_ENCODER) += svc_test.cc
endif # VP9
--- a/vp9/common/vp9_onyx.h
+++ b/vp9/common/vp9_onyx.h
@@ -221,8 +221,6 @@
int vp9_set_size_literal(VP9_PTR comp, unsigned int width,
unsigned int height);
- int vp9_switch_layer(VP9_PTR comp, int layer);
-
void vp9_set_svc(VP9_PTR comp, int use_svc);
int vp9_get_quantizer(VP9_PTR c);
--- a/vp9/encoder/vp9_onyx_if.c
+++ b/vp9/encoder/vp9_onyx_if.c
@@ -4226,37 +4226,9 @@
return 0;
}
-int vp9_switch_layer(VP9_PTR comp, int layer) {- VP9_COMP *cpi = (VP9_COMP *)comp;
-
- if (cpi->use_svc) {- cpi->current_layer = layer;
-
- // Use buffer i for layer i LST
- cpi->lst_fb_idx = layer;
-
- // Use buffer i-1 for layer i Alt (Inter-layer prediction)
- if (layer != 0) cpi->alt_fb_idx = layer - 1;
-
- // Use the rest for Golden
- if (layer < 2 * cpi->number_spatial_layers - NUM_REF_FRAMES)
- cpi->gld_fb_idx = cpi->lst_fb_idx;
- else
- cpi->gld_fb_idx = 2 * cpi->number_spatial_layers - 1 - layer;
-
- printf("Switching to layer %d:\n", layer);- printf("Using references: LST/GLD/ALT [%d|%d|%d]\n", cpi->lst_fb_idx,- cpi->gld_fb_idx, cpi->alt_fb_idx);
- } else {- printf("Switching layer not supported. Enable SVC first \n");- }
- return 0;
-}
-
void vp9_set_svc(VP9_PTR comp, int use_svc) {VP9_COMP *cpi = (VP9_COMP *)comp;
cpi->use_svc = use_svc;
- if (cpi->use_svc) printf("Enabled SVC encoder \n");return;
}
--- a/vp9/vp9_cx_iface.c
+++ b/vp9/vp9_cx_iface.c
@@ -442,8 +442,6 @@
MAP(VP8E_SET_ARNR_TYPE, xcfg.arnr_type);
MAP(VP8E_SET_TUNING, xcfg.tuning);
MAP(VP8E_SET_CQ_LEVEL, xcfg.cq_level);
- MAP(VP9E_SET_MAX_Q, ctx->cfg.rc_max_quantizer);
- MAP(VP9E_SET_MIN_Q, ctx->cfg.rc_min_quantizer);
MAP(VP8E_SET_MAX_INTRA_BITRATE_PCT, xcfg.rc_max_intra_bitrate_pct);
MAP(VP9E_SET_LOSSLESS, xcfg.lossless);
MAP(VP9E_SET_FRAME_PARALLEL_DECODING, xcfg.frame_parallel_decoding_mode);
@@ -1029,66 +1027,40 @@
}
}
-static vpx_codec_err_t vp9e_set_width(vpx_codec_alg_priv_t *ctx, int ctr_id,
- va_list args) {- unsigned int *data = va_arg(args, unsigned int *);
- if (data) {- int res;
- res = vp9_set_size_literal(ctx->cpi, *data, 0);
- if (!res) {- return VPX_CODEC_OK;
- } else {- return VPX_CODEC_INVALID_PARAM;
- }
- } else {- return VPX_CODEC_INVALID_PARAM;
- }
+static vpx_codec_err_t vp9e_set_svc(vpx_codec_alg_priv_t *ctx, int ctr_id,
+ va_list args) {+ int data = va_arg(args, int);
+ vp9_set_svc(ctx->cpi, data);
+ return VPX_CODEC_OK;
}
-static vpx_codec_err_t vp9e_set_height(vpx_codec_alg_priv_t *ctx,
- int ctr_id,
- va_list args) {- unsigned int *data = va_arg(args, unsigned int *);
+static vpx_codec_err_t vp9e_set_svc_parameters(vpx_codec_alg_priv_t *ctx,
+ int ctr_id, va_list args) {+ vpx_svc_parameters_t *data = va_arg(args, vpx_svc_parameters_t *);
+ VP9_COMP *cpi = (VP9_COMP *)ctx->cpi;
+ vpx_svc_parameters_t params;
- if (data) {- int res;
- res = vp9_set_size_literal(ctx->cpi, 0, *data);
-
- if (!res) {- return VPX_CODEC_OK;
- } else {- return VPX_CODEC_INVALID_PARAM;
- }
- } else {+ if (!data) {return VPX_CODEC_INVALID_PARAM;
}
-}
-static vpx_codec_err_t vp9e_set_layer(vpx_codec_alg_priv_t *ctx,
- int ctr_id,
- va_list args) {- unsigned int *data = va_arg(args, unsigned int *);
+ params = *(vpx_svc_parameters_t *)data;
- if (data) {- int res;
- res = 0;
+ cpi->current_layer = params.layer;
+ cpi->lst_fb_idx = params.lst_fb_idx;
+ cpi->gld_fb_idx = params.gld_fb_idx;
+ cpi->alt_fb_idx = params.alt_fb_idx;
- res = vp9_switch_layer(ctx->cpi, *data);
-
- if (!res) {- return VPX_CODEC_OK;
- } else {- return VPX_CODEC_INVALID_PARAM;
- }
- } else {+ if (vp9_set_size_literal(ctx->cpi, params.width, params.height) != 0) {return VPX_CODEC_INVALID_PARAM;
}
-}
-static vpx_codec_err_t vp9e_set_svc(vpx_codec_alg_priv_t *ctx, int ctr_id,
- va_list args) {- int data = va_arg(args, int);
- vp9_set_svc(ctx->cpi, data);
+ ctx->cfg.rc_max_quantizer = params.max_quantizer;
+ ctx->cfg.rc_min_quantizer = params.min_quantizer;
+
+ set_vp9e_config(&ctx->oxcf, ctx->cfg, ctx->vp8_cfg);
+ vp9_change_config(ctx->cpi, &ctx->oxcf);
+
return VPX_CODEC_OK;
}
@@ -1116,16 +1088,12 @@
{VP8E_SET_ARNR_TYPE, set_param}, {VP8E_SET_TUNING, set_param}, {VP8E_SET_CQ_LEVEL, set_param},- {VP9E_SET_MAX_Q, set_param},- {VP9E_SET_MIN_Q, set_param}, {VP8E_SET_MAX_INTRA_BITRATE_PCT, set_param}, {VP9E_SET_LOSSLESS, set_param}, {VP9E_SET_FRAME_PARALLEL_DECODING, set_param}, {VP9_GET_REFERENCE, get_reference},- {VP9E_SET_WIDTH, vp9e_set_width},- {VP9E_SET_HEIGHT, vp9e_set_height},- {VP9E_SET_LAYER, vp9e_set_layer}, {VP9E_SET_SVC, vp9e_set_svc},+ {VP9E_SET_SVC_PARAMETERS, vp9e_set_svc_parameters}, { -1, NULL},};
--- a/vp9_spatial_scalable_encoder.c
+++ b/vp9_spatial_scalable_encoder.c
@@ -23,24 +23,22 @@
#define VPX_CODEC_DISABLE_COMPAT 1
#include "vpx/vpx_encoder.h"
#include "vpx/vp8cx.h"
+#include "vpx/svc_context.h"
+
#define interface (vpx_codec_vp9_cx())
#define fourcc 0x30395056
#define IVF_FILE_HDR_SZ (32)
#define IVF_FRAME_HDR_SZ (12)
-#define NUM_BUFFERS 8
char *input_filename;
char *output_filename;
unsigned int number_frames_to_code = 60 * 60;
unsigned int number_frames_to_skip = 0;
-unsigned int number_spatial_layers = 5;
-unsigned int key_period = 100;
+unsigned int gop_size = 100;
-typedef enum ENCODING_MODE {- INTER_LAYER_PREDICTION_I,
- INTER_LAYER_PREDICTION_IP,
- USE_GOLDEN_FRAME
-} ENCODING_MODE;
+char *scaling_factor;
+char *quantizer;
+SVC_ENCODING_MODE encoding_mode = INTER_LAYER_PREDICTION_IP;
static void mem_put_le16(char *mem, unsigned int val) {mem[0] = val;
@@ -57,7 +55,10 @@
static void usage(char *program_name) {printf(
"Usage: %s [-f frames] [-s skip_frames] [-w width] [-h height] \n\t"
- "[-n rate_num] [-d rate_den] [-b bitrate] [-l layers] "
+ "[-n rate_num] [-d rate_den] [-b bitrate] [-l layers] [-g gop_size] \n\t"
+ "[-z dummy_frame (default 1) \n\t"
+ "[-q quantizer (lowest to highest)] \n\t"
+ "[-r 1/16th scale factor (lowest to highest layer)] "
"<input_filename> <output_filename>\n",
basename(program_name));
exit(EXIT_FAILURE);
@@ -83,56 +84,74 @@
static int read_frame(FILE *f, vpx_image_t *img) {size_t nbytes, to_read;
int res = 1;
+ int plane;
- to_read = img->w * img->h * 3 / 2;
- nbytes = fread(img->planes[0], 1, to_read, f);
- if (nbytes != to_read) {- res = 0;
- if (nbytes > 0)
- printf("Warning: Read partial frame. Check your width & height!\n");+ 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;
+
+ switch (plane) {+ case 1:
+ ptr = img->planes[VPX_PLANE_U];
+ break;
+ case 2:
+ ptr = img->planes[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 int read_dummy_frame(vpx_image_t *img) {- size_t to_read;
-
- to_read = img->w * img->h * 3 / 2;
- memset(img->planes[0], 129, to_read);
+static int create_dummy_frame(vpx_image_t *img) {+ size_t buf_size;
+ buf_size = img->w * img->h * 3 / 2;
+ memset(img->planes[0], 129, buf_size);
return 1;
}
-static void write_ivf_file_header(FILE *outfile, const vpx_codec_enc_cfg_t *cfg,
- int frame_cnt) {+static void write_ivf_file_header(FILE *outfile, unsigned int width,
+ unsigned int height, int timebase_num,
+ int timebase_den, int frame_cnt) {char header[32];
- if (cfg->g_pass != VPX_RC_ONE_PASS && cfg->g_pass != VPX_RC_LAST_PASS) return;
header[0] = 'D';
header[1] = 'K';
header[2] = 'I';
header[3] = 'F';
- mem_put_le16(header + 4, 0); /* version */
- mem_put_le16(header + 6, 32); /* headersize */
- mem_put_le32(header + 8, fourcc); /* headersize */
- mem_put_le16(header + 12, cfg->g_w); /* width */
- mem_put_le16(header + 14, cfg->g_h); /* height */
- mem_put_le32(header + 16, cfg->g_timebase.den); /* rate */
- mem_put_le32(header + 20, cfg->g_timebase.num); /* scale */
- mem_put_le32(header + 24, frame_cnt); /* length */
- mem_put_le32(header + 28, 0); /* unused */
+ mem_put_le16(header + 4, 0); /* version */
+ mem_put_le16(header + 6, 32); /* headersize */
+ mem_put_le32(header + 8, fourcc); /* headersize */
+ mem_put_le16(header + 12, width); /* width */
+ mem_put_le16(header + 14, height); /* height */
+ mem_put_le32(header + 16, timebase_den); /* rate */
+ mem_put_le32(header + 20, timebase_num); /* scale */
+ mem_put_le32(header + 24, frame_cnt); /* length */
+ mem_put_le32(header + 28, 0); /* unused */
(void)fwrite(header, 1, 32, outfile);
}
-static void write_ivf_frame_header(FILE *outfile,
- const vpx_codec_cx_pkt_t *pkt) {+static void write_ivf_frame_header(FILE *outfile, vpx_codec_pts_t pts,
+ size_t sz) {char header[12];
- vpx_codec_pts_t pts;
-
- if (pkt->kind != VPX_CODEC_CX_FRAME_PKT) return;
-
- pts = pkt->data.frame.pts;
- mem_put_le32(header, pkt->data.frame.sz);
+ mem_put_le32(header, sz);
mem_put_le32(header + 4, pts & 0xFFFFFFFF);
mem_put_le32(header + 8, pts >> 32);
@@ -139,22 +158,24 @@
(void)fwrite(header, 1, 12, outfile);
}
-static void check_parameters() {- if (number_spatial_layers > 5) die("Cannot support more than 5 layers");-}
-
-static void parse_command_line(int argc, char **argv,
- vpx_codec_enc_cfg_t *cfg) {+static void parse_command_line(int argc, char **argv, SvcContext *svc_ctx,
+ vpx_codec_enc_cfg_t *enc_cfg) {unsigned int width = 1920;
unsigned int height = 1080;
unsigned int timebase_num = 1;
unsigned int timebase_den = 60;
unsigned int bitrate = 1000;
+ unsigned int number_spatial_layers = 5;
+ int use_dummy_frame = 1;
+
int c;
vpx_codec_err_t res;
+ int r = 0;
+ int q = 0;
opterr = 0;
- while ((c = getopt(argc, argv, "f:w:h:n:d:b:s:l:p:")) != -1) switch (c) {+ while ((c = getopt(argc, argv, "f:w:h:n:d:b:s:l:g:r:q:z:")) != -1)
+ switch (c) {case 'f':
number_frames_to_code = atoi(optarg);
break;
@@ -179,9 +200,18 @@
case 'l':
number_spatial_layers = atoi(optarg);
break;
- case 'p':
- key_period = atoi(optarg);
+ case 'g':
+ gop_size = atoi(optarg);
break;
+ case 'r':
+ scaling_factor = optarg;
+ break;
+ case 'q':
+ quantizer = optarg;
+ break;
+ case 'z':
+ use_dummy_frame = atoi(optarg);
+ break;
case '?':
usage(argv[0]);
}
@@ -191,6 +221,10 @@
usage(argv[0]);
}
+ if ((r != 0 && q != 0 && r != q) || (r != number_spatial_layers && r != 0)) {+ usage(argv[0]);
+ }
+
input_filename = argv[optind];
output_filename = argv[optind + 1];
@@ -197,8 +231,18 @@
if (width < 16 || width % 2 || height < 16 || height % 2)
die("Invalid resolution: %d x %d", width, height);+ // initialize SvcContext
+ svc_ctx->log_level = SVC_LOG_DEBUG;
+ svc_ctx->spatial_layers = number_spatial_layers;
+ svc_ctx->encoding_mode = encoding_mode;
+ svc_ctx->gop_size = gop_size;
+ svc_ctx->quantizer_values = quantizer;
+ svc_ctx->scale_factors = scaling_factor;
+ // when using a dummy frame, that frame is only encoded to be full size
+ svc_ctx->first_frame_full_size = use_dummy_frame;
+
/* Populate encoder configuration */
- res = vpx_codec_enc_config_default(interface, cfg, 0);
+ res = vpx_codec_enc_config_default(interface, enc_cfg, 0);
if (res) { die("Failed to get config: %s\n", vpx_codec_err_to_string(res));}
@@ -206,201 +250,53 @@
"Codec %s\nframes: %d, skip: %d, layers: %d\n"
"width %d, height: %d, \n"
"num: %d, den: %d, bitrate: %d, \n"
- "key period: %d \n",
+ "gop size: %d, use_dummy_frame: %d \n",
vpx_codec_iface_name(interface), number_frames_to_code,
number_frames_to_skip, number_spatial_layers, width, height, timebase_num,
- timebase_den, bitrate, key_period);
+ timebase_den, bitrate, gop_size, use_dummy_frame);
- // Do minimal check at the application level. Encoder parameters will be
- // checked internally
- check_parameters();
-
- cfg->rc_target_bitrate = bitrate;
- cfg->g_w = width;
- cfg->g_h = height;
- cfg->g_timebase.num = timebase_num;
- cfg->g_timebase.den = timebase_den;
- cfg->ss_number_layers = number_spatial_layers;
+ enc_cfg->rc_target_bitrate = bitrate;
+ enc_cfg->g_w = width;
+ enc_cfg->g_h = height;
+ enc_cfg->g_timebase.num = timebase_num;
+ enc_cfg->g_timebase.den = timebase_den;
}
-static void set_default_configuration(vpx_codec_enc_cfg_t *cfg) {- /* Real time parameters */
- cfg->rc_dropframe_thresh = 0;
- cfg->rc_end_usage = VPX_CBR;
- cfg->rc_resize_allowed = 0;
- cfg->rc_min_quantizer = 33;
- cfg->rc_max_quantizer = 33;
- cfg->rc_undershoot_pct = 100;
- cfg->rc_overshoot_pct = 15;
- cfg->rc_buf_initial_sz = 500;
- cfg->rc_buf_optimal_sz = 600;
- cfg->rc_buf_sz = 1000;
-
- /* Enable error resilient mode */
- cfg->g_error_resilient = 1;
- cfg->g_lag_in_frames = 0;
-
- /* Disable automatic keyframe placement */
- cfg->kf_mode = VPX_KF_DISABLED;
- cfg->kf_min_dist = cfg->kf_max_dist = 3000;
-}
-
-static void initialize_codec(vpx_codec_ctx_t *codec, vpx_codec_enc_cfg_t *cfg) {- int max_intra_size_pct;
-
- /* Initialize codec */
- if (vpx_codec_enc_init(codec, interface, cfg, VPX_CODEC_USE_PSNR))
- die_codec(codec, "Failed to initialize encoder");
-
- vpx_codec_control(codec, VP9E_SET_SVC, 1);
- /* Cap CPU & first I-frame size */
- vpx_codec_control(codec, VP8E_SET_CPUUSED, 1);
- 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) / 10.0);
- /* printf ("max_intra_size_pct=%d\n", max_intra_size_pct); */-
- vpx_codec_control(codec, VP8E_SET_MAX_INTRA_BITRATE_PCT, max_intra_size_pct);
-}
-
-static int calculate_layer(int frame_cnt, int number_spatial_layers) {- if (frame_cnt == 0)
- return 0;
- else
- return (frame_cnt + number_spatial_layers - 1) % number_spatial_layers;
-}
-
-static void switch_to_layer(int layer, unsigned int initial_width,
- unsigned int initial_height,
- vpx_codec_ctx_t *codec) {- // Set layer size
- int scaling_factor_num[MAX_LAYERS] = {2, 1, 4, 2, 1};- int scaling_factor_den[MAX_LAYERS] = {9, 3, 9, 3, 1};-
- int quantizer[MAX_LAYERS] = {60, 53, 39, 33, 27};-
- unsigned int current_width;
- unsigned int current_height;
-
- current_width = initial_width *
- scaling_factor_num[layer + 5 - number_spatial_layers] /
- scaling_factor_den[layer + 5 - number_spatial_layers];
- current_height = initial_height *
- scaling_factor_num[layer + 5 - number_spatial_layers] /
- scaling_factor_den[layer + 5 - number_spatial_layers];
-
- current_width += current_width % 2;
- current_height += current_height % 2;
-
- vpx_codec_control(codec, VP9E_SET_WIDTH, ¤t_width);
- vpx_codec_control(codec, VP9E_SET_HEIGHT, ¤t_height);
-
- // Set layer context
- vpx_codec_control(codec, VP9E_SET_LAYER, &layer);
- vpx_codec_control(codec, VP9E_SET_MAX_Q,
- quantizer[layer + 5 - number_spatial_layers]);
- vpx_codec_control(codec, VP9E_SET_MIN_Q,
- quantizer[layer + 5 - number_spatial_layers]);
-}
-
-static int get_flag(int is_I_frame_in_layer, int layer, ENCODING_MODE mode) {- // First layer
- switch (mode) {- case INTER_LAYER_PREDICTION_I:
- if (is_I_frame_in_layer && layer == 0) return VPX_EFLAG_FORCE_KF;
- if (layer == 0)
- return VP8_EFLAG_NO_UPD_GF | VP8_EFLAG_NO_UPD_ARF |
- VP8_EFLAG_NO_REF_GF | VP8_EFLAG_NO_REF_ARF;
- else if (is_I_frame_in_layer)
- return VP8_EFLAG_NO_UPD_GF | VP8_EFLAG_NO_UPD_ARF |
- VP8_EFLAG_NO_REF_GF | VP8_EFLAG_NO_REF_LAST;
- else
- return VP8_EFLAG_NO_UPD_GF | VP8_EFLAG_NO_UPD_ARF |
- VP8_EFLAG_NO_REF_GF | VP8_EFLAG_NO_REF_ARF;
- break;
-
- case INTER_LAYER_PREDICTION_IP:
- if (is_I_frame_in_layer && layer == 0) return VPX_EFLAG_FORCE_KF;
- if (layer == 0)
- return VP8_EFLAG_NO_UPD_GF | VP8_EFLAG_NO_UPD_ARF |
- VP8_EFLAG_NO_REF_GF | VP8_EFLAG_NO_REF_ARF;
- else if (is_I_frame_in_layer)
- return VP8_EFLAG_NO_UPD_GF | VP8_EFLAG_NO_UPD_ARF |
- VP8_EFLAG_NO_REF_GF | VP8_EFLAG_NO_REF_LAST;
- else
- return VP8_EFLAG_NO_UPD_GF | VP8_EFLAG_NO_UPD_ARF | VP8_EFLAG_NO_REF_GF;
- break;
-
- case USE_GOLDEN_FRAME:
- if (is_I_frame_in_layer && layer == 0) return VPX_EFLAG_FORCE_KF;
- if (2 * number_spatial_layers - NUM_BUFFERS <= layer) {- if (layer == 0)
- return VP8_EFLAG_NO_UPD_GF | VP8_EFLAG_NO_UPD_ARF |
- VP8_EFLAG_NO_REF_ARF;
- else if (is_I_frame_in_layer)
- return VP8_EFLAG_NO_UPD_ARF | VP8_EFLAG_NO_REF_GF |
- VP8_EFLAG_NO_REF_LAST;
- else
- return VP8_EFLAG_NO_UPD_GF | VP8_EFLAG_NO_UPD_ARF;
- } else {- if (layer == 0)
- return VP8_EFLAG_NO_UPD_GF | VP8_EFLAG_NO_UPD_ARF |
- VP8_EFLAG_NO_REF_GF | VP8_EFLAG_NO_REF_ARF;
- else if (is_I_frame_in_layer)
- return VP8_EFLAG_NO_UPD_GF | VP8_EFLAG_NO_UPD_ARF |
- VP8_EFLAG_NO_REF_GF | VP8_EFLAG_NO_REF_LAST;
- else
- return VP8_EFLAG_NO_UPD_GF | VP8_EFLAG_NO_UPD_ARF |
- VP8_EFLAG_NO_REF_GF | VP8_EFLAG_NO_REF_ARF;
- }
- break;
- default:
- return VPX_EFLAG_FORCE_KF;
- }
-}
-
int main(int argc, char **argv) {- FILE *infile, *outfile[MAX_LAYERS];
+ FILE *infile, *outfile;
vpx_codec_ctx_t codec;
- vpx_codec_enc_cfg_t cfg;
+ vpx_codec_enc_cfg_t enc_cfg;
+ SvcContext svc_ctx;
+ int i;
int frame_cnt = 0;
vpx_image_t raw;
- int frame_avail = 1;
- int got_data = 0;
- int i;
- int frames_in_layer[MAX_LAYERS] = {0};clock_t before;
clock_t after;
+ vpx_codec_err_t res;
int pts = 0; /* PTS starts at 0 */
int frame_duration = 1; /* 1 timebase tick per frame */
- parse_command_line(argc, argv, &cfg);
+ memset(&svc_ctx, 0, sizeof(svc_ctx));
+ svc_ctx.log_print = 1;
+ parse_command_line(argc, argv, &svc_ctx, &enc_cfg);
// Allocate image buffer
- if (!vpx_img_alloc(&raw, VPX_IMG_FMT_I420, cfg.g_w, cfg.g_h, 32))
- die("Failed to allocate image", cfg.g_w, cfg.g_h);+ if (!vpx_img_alloc(&raw, VPX_IMG_FMT_I420, enc_cfg.g_w, enc_cfg.g_h, 32))
+ die("Failed to allocate image", enc_cfg.g_w, enc_cfg.g_h);- set_default_configuration(&cfg);
-
- /* Open input file */
if (!(infile = fopen(input_filename, "rb")))
die("Failed to open %s for reading", argv[1]);- /* Open output file */
- for (i = 0; i < number_spatial_layers; i++) {- char file_name[512];
- snprintf(file_name, sizeof(file_name), "%s_%d.ivf", output_filename, i);
- if (!(outfile[i] = fopen(file_name, "wb")))
- die("Failed to open %s for writing", file_name);- write_ivf_file_header(outfile[i], &cfg, 0);
- }
+ if (!(outfile = fopen(output_filename, "wb")))
+ die("Failed to open %s for writing", output_filename);- initialize_codec(&codec, &cfg);
+ // Initialize codec
+ if (vpx_svc_init(&svc_ctx, &codec, interface, &enc_cfg) != VPX_CODEC_OK)
+ die("Failed to initialize encoder");+ write_ivf_file_header(outfile, enc_cfg.g_w, enc_cfg.g_h,
+ enc_cfg.g_timebase.num, enc_cfg.g_timebase.den, 0);
+
// skip initial frames
for (i = 0; i < number_frames_to_skip; i++) {read_frame(infile, &raw);
@@ -407,81 +303,47 @@
}
before = clock();
- // Encoding frames
- while ((frame_avail || got_data) &&
- frame_cnt <= number_frames_to_code * number_spatial_layers) {- int flags = 0;
- vpx_codec_iter_t iter = NULL;
- const vpx_codec_cx_pkt_t *pkt;
-
- int layer = calculate_layer(frame_cnt, number_spatial_layers);
- int is_I_frame_in_layer =
- (((frame_cnt - 1) / number_spatial_layers % key_period) == 0);
- int is_dummy = (frame_cnt == 0);
-
- if (is_dummy) { // Dummy frame- flags = VPX_EFLAG_FORCE_KF;
- frame_avail = read_dummy_frame(&raw);
-
- } else { // Regular frame- // Read a new frame only at the base layer
- if (layer == 0) frame_avail = read_frame(infile, &raw);
- switch_to_layer(layer, cfg.g_w, cfg.g_h, &codec);
- flags = get_flag(is_I_frame_in_layer, layer, INTER_LAYER_PREDICTION_I);
+ // Encode frames
+ while (frame_cnt <= number_frames_to_code) {+ if (frame_cnt == 0 && svc_ctx.first_frame_full_size) {+ create_dummy_frame(&raw);
+ } else {+ if (!read_frame(infile, &raw)) break;
}
-
- // Actual Encoding
- if (vpx_codec_encode(&codec, frame_avail ? &raw : NULL, pts, 1, flags,
- VPX_DL_REALTIME))
+ res = vpx_svc_encode(&svc_ctx, &codec, &raw, pts, frame_duration,
+ VPX_DL_REALTIME);
+ printf("%s", svc_get_message(&svc_ctx));+ if (res != VPX_CODEC_OK) {die_codec(&codec, "Failed to encode frame");
-
- got_data = 0;
- // Process data / Get PSNR statistics
- while ((pkt = vpx_codec_get_cx_data(&codec, &iter))) {- got_data = 1;
- switch (pkt->kind) {- case VPX_CODEC_CX_FRAME_PKT:
- for (i = layer; i < number_spatial_layers; i++) {- write_ivf_frame_header(outfile[i], pkt);
- (void)fwrite(pkt->data.frame.buf, 1, pkt->data.frame.sz,
- outfile[i]);
- frames_in_layer[i]++;
- }
- break;
- case VPX_CODEC_PSNR_PKT:
- if (frame_cnt != 0)
- printf(
- "Processed Frame %d, layer %d, PSNR(Total/Y/U/V): "
- "%2.3f %2.3f %2.3f %2.3f \n",
- (frame_cnt - 1) / number_spatial_layers + 1, layer,
- pkt->data.psnr.psnr[0], pkt->data.psnr.psnr[1],
- pkt->data.psnr.psnr[2], pkt->data.psnr.psnr[3]);
- break;
- default:
- break;
- }
}
+ if (svc_get_frame_size(&svc_ctx) > 0) {+ write_ivf_frame_header(outfile, pts, svc_get_frame_size(&svc_ctx));
+ (void)fwrite(svc_get_buffer(&svc_ctx), 1, svc_get_frame_size(&svc_ctx),
+ outfile);
+ }
frame_cnt++;
- // TODO(ivan): Modify ts later if(!layer)
pts += frame_duration;
- }
- // end while
+ } // end encode frames loop
after = clock();
printf("Processed %d frames in different resolutions in %ld ms.\n",- frame_cnt - 1, (int)(after - before) / (CLOCKS_PER_SEC / 1000));
+ frame_cnt - svc_ctx.first_frame_full_size,
+ (int)(after - before) / (CLOCKS_PER_SEC / 1000));
fclose(infile);
-
if (vpx_codec_destroy(&codec)) die_codec(&codec, "Failed to destroy codec");
- /* Try to rewrite the output file headers with the actual frame count */
- for (i = 0; i < number_spatial_layers; i++) {- if (!fseek(outfile[i], 0, SEEK_SET)) {- write_ivf_file_header(outfile[i], &cfg, frames_in_layer[i]);
- }
- fclose(outfile[i]);
+ // rewrite the output file headers with the actual frame count
+ if (!fseek(outfile, 0, SEEK_SET)) {+ write_ivf_file_header(outfile, enc_cfg.g_w, enc_cfg.g_h,
+ enc_cfg.g_timebase.num, enc_cfg.g_timebase.den,
+ frame_cnt);
}
+ fclose(outfile);
+
+ // display average size, psnr
+ svc_dump_statistics(&svc_ctx);
+ printf("%s", svc_get_message(&svc_ctx));return EXIT_SUCCESS;
}
--- a/vpx/exports_enc
+++ b/vpx/exports_enc
@@ -6,3 +6,12 @@
text vpx_codec_get_global_headers
text vpx_codec_get_preview_frame
text vpx_codec_set_cx_data_buf
+text vpx_svc_init
+text vpx_svc_encode
+text svc_dump_statistics
+text svc_get_message
+text svc_get_buffer
+text svc_get_frame_size
+text svc_get_encode_frame_count
+text svc_is_keyframe
+text svc_set_keyframe
\ No newline at end of file
--- /dev/null
+++ b/vpx/src/svc_encodeframe.c
@@ -1,0 +1,793 @@
+/**
+ * @file
+ * VP9 SVC encoding support via libvpx
+ */
+
+#define VPX_DISABLE_CTRL_TYPECHECKS 1
+#define VPX_CODEC_DISABLE_COMPAT 1
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdarg.h>
+#include "vpx/vpx_encoder.h"
+#include "vpx/vp8cx.h"
+#include "vpx/svc_context.h"
+
+#define SVC_REFERENCE_FRAMES 8
+
+static const char* DEFAULT_QUANTIZER_VALUES = "60,53,39,33,27";
+static const char* DEFAULT_SCALE_FACTORS = "4/16,5/16,7/16,11/16,16/16";
+static char* colors[VPX_SS_MAX_LAYERS] = {"\x1B[35m", "\x1B[32m", "\x1B[33m",+ "\x1B[34m", "\x1B[36m"};
+static char* normal_color = "\x1B[0m";
+
+typedef struct SvcInternal {+ // values extracted from options
+ int scaling_factor_num[VPX_SS_MAX_LAYERS];
+ int scaling_factor_den[VPX_SS_MAX_LAYERS];
+ int quantizer[VPX_SS_MAX_LAYERS];
+
+ // accumulated statistics
+ double psnr_in_layer[VPX_SS_MAX_LAYERS];
+ int bytes_in_layer[VPX_SS_MAX_LAYERS];
+
+ // codec encoding values
+ int width;
+ int height;
+
+ // state variables
+ int encode_frame_count;
+ int frame_within_gop;
+ vpx_enc_frame_flags_t enc_frame_flags;
+ int layers;
+ int layer;
+ int is_keyframe;
+
+ size_t frame_size;
+ size_t buffer_size;
+ void* buffer;
+
+ char message_buffer[2048];
+ vpx_codec_ctx_t* codec_ctx;
+} SvcInternal;
+
+// One encoded frame layer
+struct LayerData {+ void* buf; // compressed data buffer
+ size_t size; // length of compressed data
+ struct LayerData* next;
+};
+
+// forward references
+static void svc_log_reset(SvcContext* svc_ctx);
+static int svc_log(SvcContext* svc_ctx, int level, char* fmt, ...);
+static vpx_codec_err_t svc_parse_input_parameters(SvcContext* svc_ctx);
+static int vpx_svc_dummy_frame(SvcContext* svc_ctx, SvcInternal* si);
+
+// create LayerData from encoder output
+static struct LayerData* ld_create(void* buf, size_t size) {+ struct LayerData* layer_data;
+
+ layer_data = malloc(sizeof(struct LayerData));
+ if (layer_data == NULL) {+ return NULL;
+ }
+ layer_data->buf = malloc(size);
+ if (layer_data->buf == NULL) {+ return NULL;
+ }
+ memcpy(layer_data->buf, buf, size);
+ layer_data->size = size;
+ return layer_data;
+}
+
+// free LayerData
+static void ld_free(struct LayerData* layer_data) {+ if (layer_data->buf) {+ free(layer_data->buf);
+ layer_data->buf = NULL;
+ }
+ free(layer_data);
+}
+
+// add layer data to list
+static void ld_list_add(struct LayerData** list, struct LayerData* layer_data) {+ struct LayerData** p = list;
+
+ while (*p != NULL) p = &(*p)->next;
+ *p = layer_data;
+ layer_data->next = NULL;
+}
+
+// get accumulated size of layer data
+static size_t ld_list_get_buffer_size(struct LayerData* list) {+ struct LayerData* p;
+ size_t size = 0;
+
+ for (p = list; p != NULL; p = p->next) {+ size += p->size;
+ }
+ return size;
+}
+
+// copy layer data to buffer
+static void ld_list_copy_to_buffer(struct LayerData* list, uint8_t* buffer) {+ struct LayerData* p;
+
+ for (p = list; p != NULL; p = p->next) {+ buffer[0] = 1;
+ memcpy(buffer, p->buf, p->size);
+ buffer += p->size;
+ }
+}
+
+// free layer data list
+static void ld_list_free(struct LayerData* list) {+ struct LayerData* p = list;
+
+ while (p) {+ list = list->next;
+ ld_free(p);
+ p = list;
+ }
+}
+
+// Superframe Index
+#define SUPERFRAME_SLOTS (8)
+#define SUPERFRAME_BUFFER_SIZE (SUPERFRAME_SLOTS * sizeof(uint32_t) + 2)
+
+struct Superframe {+ int count;
+ uint32_t sizes[SUPERFRAME_SLOTS];
+ uint32_t magnitude;
+ uint8_t buffer[SUPERFRAME_BUFFER_SIZE];
+ size_t index_size;
+};
+
+static void sf_create_index(struct Superframe* sf) {+ uint8_t marker = 0xc0;
+ int mag, mask;
+ uint8_t* bufp;
+ int i, j;
+ int this_sz;
+
+ if (sf->count == 0 || sf->count >= 8) return;
+
+ /* Add the number of frames to the marker byte */
+ marker |= sf->count - 1;
+
+ /* Choose the magnitude */
+ for (mag = 0, mask = 0xff; mag < 4; mag++) {+ if (sf->magnitude < mask) break;
+ mask <<= 8;
+ mask |= 0xff;
+ }
+ marker |= mag << 3;
+
+ /* Write the index */
+ sf->index_size = 2 + (mag + 1) * sf->count;
+ bufp = sf->buffer;
+
+ *bufp++ = marker;
+ for (i = 0; i < sf->count; i++) {+ this_sz = sf->sizes[i];
+
+ for (j = 0; j <= mag; j++) {+ *bufp++ = this_sz & 0xff;
+ this_sz >>= 8;
+ }
+ }
+ *bufp++ = marker;
+}
+
+static vpx_codec_err_t svc_invalid_scale_factor(SvcContext* svc_ctx) {+ svc_log(svc_ctx, SVC_LOG_ERROR, "svc-scale-factors: invalid value\n");
+ return VPX_CODEC_INVALID_PARAM;
+}
+
+static vpx_codec_err_t svc_parse_input_parameters(SvcContext* svc_ctx) {+ char* input_string;
+ char* token;
+ const char* delim = ",";
+ char* save_ptr;
+ int found;
+ int i, q;
+ int64_t num, den;
+ SvcInternal* si = (SvcInternal*)svc_ctx->internal;
+
+ // parse quantizer_values
+ if (svc_ctx->quantizer_values == NULL ||
+ strlen(svc_ctx->quantizer_values) == 0) {+ input_string = strdup(DEFAULT_QUANTIZER_VALUES);
+ } else {+ input_string = strdup(svc_ctx->quantizer_values);
+ }
+
+ found = 0;
+ token = strtok_r(input_string, delim, &save_ptr);
+ for (i = 0; i < si->layers; i++) {+ if (token != NULL) {+ q = atoi(token);
+ if (q <= 0 || q > 100) {+ svc_log(svc_ctx, SVC_LOG_ERROR,
+ "svc-quantizer-values: invalid value\n");
+ return VPX_CODEC_INVALID_PARAM;
+ }
+ token = strtok_r(NULL, delim, &save_ptr);
+ found = i + 1;
+ } else {+ q = 0;
+ }
+ si->quantizer[i + VPX_SS_MAX_LAYERS - si->layers] = q;
+ }
+ free(input_string);
+ if (found != si->layers) {+ svc_log(svc_ctx, SVC_LOG_ERROR,
+ "svc-quantizer-values: %d values required, but only %d specified\n",
+ si->layers, found);
+ return VPX_CODEC_INVALID_PARAM;
+ }
+
+ // parse scale_factors
+ if (svc_ctx->scale_factors == NULL || strlen(svc_ctx->scale_factors) == 0) {+ input_string = strdup(DEFAULT_SCALE_FACTORS);
+ } else {+ input_string = strdup(svc_ctx->scale_factors);
+ }
+ found = 0;
+ token = strtok_r(input_string, delim, &save_ptr);
+ for (i = 0; i < si->layers; i++) {+ num = den = 1;
+ if (token != NULL) {+ num = strtol(token, &token, 10);
+ if (num <= 0) return svc_invalid_scale_factor(svc_ctx);
+ if (*token++ != '/') return svc_invalid_scale_factor(svc_ctx);
+ den = strtol(token, &token, 10);
+ if (den <= 0) return svc_invalid_scale_factor(svc_ctx);
+
+ token = strtok_r(NULL, delim, &save_ptr);
+ found = i + 1;
+ }
+ si->scaling_factor_num[i + VPX_SS_MAX_LAYERS - si->layers] = (int)num;
+ si->scaling_factor_den[i + VPX_SS_MAX_LAYERS - si->layers] = (int)den;
+ }
+ free(input_string);
+ if (found != si->layers) {+ svc_log(svc_ctx, SVC_LOG_ERROR,
+ "svc-scale-factors: %d values required, but only %d specified\n",
+ si->layers, found);
+ return VPX_CODEC_INVALID_PARAM;
+ }
+ return VPX_CODEC_OK;
+}
+
+vpx_codec_err_t vpx_svc_init(SvcContext* svc_ctx, vpx_codec_ctx_t* codec_ctx,
+ vpx_codec_iface_t* iface,
+ vpx_codec_enc_cfg_t* enc_cfg) {+ int max_intra_size_pct;
+ vpx_codec_err_t res;
+ SvcInternal* si;
+
+ if (svc_ctx->internal == NULL) {+ svc_ctx->internal = malloc(sizeof(SvcInternal));
+ }
+ si = (SvcInternal*)svc_ctx->internal;
+ memset(si, 0, sizeof(SvcInternal));
+ si->codec_ctx = codec_ctx;
+
+ if (svc_ctx->spatial_layers < 1 ||
+ svc_ctx->spatial_layers > VPX_SS_MAX_LAYERS) {+ svc_log(svc_ctx, SVC_LOG_ERROR, "spatial layers: invalid value: %d\n",
+ svc_ctx->spatial_layers);
+ return VPX_CODEC_INVALID_PARAM;
+ }
+
+ if (svc_ctx->gop_size < 2) {+ svc_log(svc_ctx, SVC_LOG_ERROR, "gop_size too small: %d\n",
+ svc_ctx->gop_size);
+ return VPX_CODEC_INVALID_PARAM;
+ }
+
+ si->width = enc_cfg->g_w;
+ si->height = enc_cfg->g_h;
+
+ // use SvcInternal value for number of layers to enable forcing one layer
+ // for first frame
+ si->layers = svc_ctx->spatial_layers;
+
+ // parse quantizer values and scale factors
+ res = svc_parse_input_parameters(svc_ctx);
+ if (res != VPX_CODEC_OK) return res;
+
+ // initialize encoder configuration
+ enc_cfg->ss_number_layers = si->layers;
+ // force single pass
+ enc_cfg->g_pass = VPX_RC_ONE_PASS;
+ // Lag in frames not currently supported
+ enc_cfg->g_lag_in_frames = 0;
+
+ // TODO(ivanmaltz): determine if these values need to be set explicitly for
+ // svc, or if the normal default/override mechanism can be used
+ enc_cfg->rc_dropframe_thresh = 0;
+ enc_cfg->rc_end_usage = VPX_CBR;
+ enc_cfg->rc_resize_allowed = 0;
+ enc_cfg->rc_min_quantizer = 33;
+ enc_cfg->rc_max_quantizer = 33;
+ enc_cfg->rc_undershoot_pct = 100;
+ enc_cfg->rc_overshoot_pct = 15;
+ enc_cfg->rc_buf_initial_sz = 500;
+ enc_cfg->rc_buf_optimal_sz = 600;
+ enc_cfg->rc_buf_sz = 1000;
+
+ enc_cfg->g_error_resilient = 1;
+ enc_cfg->kf_mode = VPX_KF_DISABLED;
+ enc_cfg->kf_min_dist = enc_cfg->kf_max_dist = 3000;
+
+ // Initialize codec
+ res = vpx_codec_enc_init(codec_ctx, iface, enc_cfg, VPX_CODEC_USE_PSNR);
+ if (res != VPX_CODEC_OK) {+ svc_log(svc_ctx, SVC_LOG_ERROR, "svc_enc_init error\n");
+ return res;
+ }
+
+ vpx_codec_control(codec_ctx, VP9E_SET_SVC, 1);
+
+ // Cap CPU & first I-frame size
+ vpx_codec_control(codec_ctx, VP8E_SET_CPUUSED, 1);
+ vpx_codec_control(codec_ctx, VP8E_SET_STATIC_THRESHOLD, 1);
+ vpx_codec_control(codec_ctx, VP8E_SET_NOISE_SENSITIVITY, 1);
+ vpx_codec_control(codec_ctx, VP8E_SET_TOKEN_PARTITIONS, 1);
+
+ max_intra_size_pct =
+ (int)(((double)enc_cfg->rc_buf_optimal_sz * 0.5) *
+ ((double)enc_cfg->g_timebase.den / enc_cfg->g_timebase.num) / 10.0);
+ vpx_codec_control(codec_ctx, VP8E_SET_MAX_INTRA_BITRATE_PCT,
+ max_intra_size_pct);
+ return VPX_CODEC_OK;
+}
+
+// SVC Algorithm flags - these get mapped to VP8_EFLAG_* defined in vp8cx.h
+
+// encoder should reference the last frame
+#define USE_LAST (1 << 0)
+
+// encoder should reference the alt ref frame
+#define USE_ARF (1 << 1)
+
+// encoder should reference the golden frame
+#define USE_GF (1 << 2)
+
+// encoder should copy current frame to the last frame buffer
+#define UPDATE_LAST (1 << 3)
+
+// encoder should copy current frame to the alt ref frame buffer
+#define UPDATE_ARF (1 << 4)
+
+// encoder should copy current frame to the golden frame
+#define UPDATE_GF (1 << 5)
+
+static int map_vp8_flags(int svc_flags) {+ int flags = 0;
+
+ if (!(svc_flags & USE_LAST)) flags |= VP8_EFLAG_NO_REF_LAST;
+
+ if (!(svc_flags & USE_ARF)) flags |= VP8_EFLAG_NO_REF_ARF;
+
+ if (!(svc_flags & USE_GF)) flags |= VP8_EFLAG_NO_REF_GF;
+
+ if (svc_flags & UPDATE_LAST) {+ // last is updated automatically
+ } else {+ flags |= VP8_EFLAG_NO_UPD_LAST;
+ }
+
+ if (svc_flags & UPDATE_ARF) {+ flags |= VP8_EFLAG_FORCE_ARF;
+ } else {+ flags |= VP8_EFLAG_NO_UPD_ARF;
+ }
+
+ if (svc_flags & UPDATE_GF) {+ flags |= VP8_EFLAG_FORCE_GF;
+ } else {+ flags |= VP8_EFLAG_NO_UPD_GF;
+ }
+
+ return flags;
+}
+
+static void calculate_enc_frame_flags(SvcContext* svc_ctx) {+ vpx_enc_frame_flags_t flags = VPX_EFLAG_FORCE_KF;
+ SvcInternal* si = (SvcInternal*)svc_ctx->internal;
+
+ int is_keyframe = (si->frame_within_gop == 0);
+
+ // keyframe layer zero is identical for all modes
+ if ((is_keyframe && si->layer == 0) || vpx_svc_dummy_frame(svc_ctx, si)) {+ si->enc_frame_flags = VPX_EFLAG_FORCE_KF;
+ return;
+ }
+
+ switch (svc_ctx->encoding_mode) {+ case ALT_INTER_LAYER_PREDICTION_IP:
+ if (si->layer == 0) {+ flags = map_vp8_flags(USE_LAST | UPDATE_LAST);
+ } else if (is_keyframe) {+ if (si->layer == si->layers - 1) {+ flags = map_vp8_flags(USE_ARF | UPDATE_LAST);
+ } else {+ flags = map_vp8_flags(USE_ARF | UPDATE_LAST | UPDATE_GF);
+ }
+ } else {+ flags = map_vp8_flags(USE_LAST | USE_ARF | UPDATE_LAST);
+ }
+ break;
+ case INTER_LAYER_PREDICTION_I:
+ if (si->layer == 0) {+ flags = map_vp8_flags(USE_LAST | UPDATE_LAST);
+ } else if (is_keyframe) {+ flags = map_vp8_flags(USE_ARF | UPDATE_LAST);
+ } else {+ flags = map_vp8_flags(USE_LAST | UPDATE_LAST);
+ }
+ break;
+ case INTER_LAYER_PREDICTION_IP:
+ if (si->layer == 0) {+ flags = map_vp8_flags(USE_LAST | UPDATE_LAST);
+ } else if (is_keyframe) {+ flags = map_vp8_flags(USE_ARF | UPDATE_LAST);
+ } else {+ flags = map_vp8_flags(USE_LAST | USE_ARF | UPDATE_LAST);
+ }
+ break;
+ case USE_GOLDEN_FRAME:
+ if (2 * si->layers - SVC_REFERENCE_FRAMES <= si->layer) {+ if (si->layer == 0) {+ flags = map_vp8_flags(USE_LAST | USE_GF | UPDATE_LAST);
+ } else if (is_keyframe) {+ flags = map_vp8_flags(USE_ARF | UPDATE_LAST | UPDATE_GF);
+ } else {+ flags = map_vp8_flags(USE_LAST | USE_ARF | USE_GF | UPDATE_LAST);
+ }
+ } else {+ if (si->layer == 0) {+ flags = map_vp8_flags(USE_LAST | UPDATE_LAST);
+ } else if (is_keyframe) {+ flags = map_vp8_flags(USE_ARF | UPDATE_LAST);
+ } else {+ flags = map_vp8_flags(USE_LAST | UPDATE_LAST);
+ }
+ }
+ break;
+ default:
+ svc_log(svc_ctx, SVC_LOG_ERROR, "unexpected encoding mode: %d\n",
+ svc_ctx->encoding_mode);
+ break;
+ }
+ si->enc_frame_flags = flags;
+}
+
+vpx_codec_err_t svc_get_layer_resolution(SvcContext* svc_ctx, int layer,
+ unsigned int* width,
+ unsigned int* height) {+ int w, h, index, num, den;
+ SvcInternal* si = (SvcInternal*)svc_ctx->internal;
+
+ if (layer < 0 || layer >= si->layers) return VPX_CODEC_INVALID_PARAM;
+
+ index = layer + VPX_SS_MAX_LAYERS - si->layers;
+ num = si->scaling_factor_num[index];
+ den = si->scaling_factor_den[index];
+ if (num == 0 || den == 0) return VPX_CODEC_INVALID_PARAM;
+
+ w = si->width * num / den;
+ h = si->height * num / den;
+
+ // make height and width even to make chrome player happy
+ w += w % 2;
+ h += h % 2;
+
+ *width = w;
+ *height = h;
+
+ return VPX_CODEC_OK;
+}
+
+static void set_svc_parameters(SvcContext* svc_ctx,
+ vpx_codec_ctx_t* codec_ctx) {+ int layer, layer_index;
+ vpx_svc_parameters_t svc_params;
+ int use_higher_layer;
+ SvcInternal* si = (SvcInternal*)svc_ctx->internal;
+
+ memset(&svc_params, 0, sizeof(svc_params));
+ svc_params.layer = si->layer;
+ svc_params.flags = si->enc_frame_flags;
+
+ layer = si->layer;
+ if (svc_ctx->encoding_mode == ALT_INTER_LAYER_PREDICTION_IP &&
+ si->frame_within_gop == 0) {+ // layers 1 & 3 don't exist in this mode, use the higher one
+ if (layer == 0 || layer == 2) {+ layer += 1;
+ }
+ }
+ if (VPX_CODEC_OK != svc_get_layer_resolution(svc_ctx, layer,
+ &svc_params.width,
+ &svc_params.height)) {+ svc_log(svc_ctx, SVC_LOG_ERROR, "svc_get_layer_resolution failed\n");
+ }
+ layer_index = layer + VPX_SS_MAX_LAYERS - si->layers;
+ svc_params.min_quantizer = si->quantizer[layer_index];
+ svc_params.max_quantizer = si->quantizer[layer_index];
+ svc_params.distance_from_i_frame = si->frame_within_gop;
+
+ // Use buffer i for layer i LST
+ svc_params.lst_fb_idx = si->layer;
+
+ // Use buffer i-1 for layer i Alt (Inter-layer prediction)
+ if (si->layer != 0) {+ use_higher_layer =
+ svc_ctx->encoding_mode == ALT_INTER_LAYER_PREDICTION_IP &&
+ si->frame_within_gop == 0;
+ svc_params.alt_fb_idx = use_higher_layer ? si->layer - 2 : si->layer - 1;
+ }
+
+ if (svc_ctx->encoding_mode == ALT_INTER_LAYER_PREDICTION_IP) {+ svc_params.gld_fb_idx = si->layer + 1;
+ } else {+ if (si->layer < 2 * si->layers - SVC_REFERENCE_FRAMES)
+ svc_params.gld_fb_idx = svc_params.lst_fb_idx;
+ else
+ svc_params.gld_fb_idx = 2 * si->layers - 1 - si->layer;
+ }
+
+ svc_log(svc_ctx, SVC_LOG_DEBUG, "%sSVC frame: %d, layer: %d, %dx%d, q: %d\n",
+ svc_ctx->log_print ? colors[si->layer] : "", //
+ si->encode_frame_count, si->layer, svc_params.width,
+ svc_params.height, svc_params.min_quantizer);
+
+ if (svc_params.flags == VPX_EFLAG_FORCE_KF) {+ svc_log(svc_ctx, SVC_LOG_DEBUG, "flags == VPX_EFLAG_FORCE_KF\n");
+ } else {+ svc_log(
+ svc_ctx, SVC_LOG_DEBUG, "Using: LST/GLD/ALT [%2d|%2d|%2d]\n",
+ svc_params.flags & VP8_EFLAG_NO_REF_LAST ? -1 : svc_params.lst_fb_idx,
+ svc_params.flags & VP8_EFLAG_NO_REF_GF ? -1 : svc_params.gld_fb_idx,
+ svc_params.flags & VP8_EFLAG_NO_REF_ARF ? -1 : svc_params.alt_fb_idx);
+ svc_log(
+ svc_ctx, SVC_LOG_DEBUG, "Updating: LST/GLD/ALT [%2d|%2d|%2d]\n",
+ svc_params.flags & VP8_EFLAG_NO_UPD_LAST ? -1 : svc_params.lst_fb_idx,
+ svc_params.flags & VP8_EFLAG_NO_UPD_GF ? -1 : svc_params.gld_fb_idx,
+ svc_params.flags & VP8_EFLAG_NO_UPD_ARF ? -1 : svc_params.alt_fb_idx);
+ }
+
+ vpx_codec_control(codec_ctx, VP9E_SET_SVC_PARAMETERS, &svc_params);
+}
+
+/**
+ * Helper to check if the current frame is the first, full resolution dummy.
+ */
+static int vpx_svc_dummy_frame(SvcContext* svc_ctx, SvcInternal* si) {+ return svc_ctx->first_frame_full_size == 1 && si->encode_frame_count == 0;
+}
+
+/**
+ * Encode a frame into multiple layers
+ * Create a superframe containing the individual layers
+ */
+vpx_codec_err_t vpx_svc_encode(SvcContext* svc_ctx, vpx_codec_ctx_t* codec_ctx,
+ struct vpx_image* rawimg, vpx_codec_pts_t pts,
+ int64_t duration, int deadline) {+ vpx_codec_err_t res;
+ vpx_codec_iter_t iter;
+ const vpx_codec_cx_pkt_t* cx_pkt;
+ struct LayerData* cx_layer_list = NULL;
+ struct LayerData* layer_data;
+ size_t frame_pkt_size;
+ struct Superframe superframe;
+ SvcInternal* si = (SvcInternal*)svc_ctx->internal;
+
+ memset(&superframe, 0, sizeof(superframe));
+ svc_log_reset(svc_ctx);
+
+ si->layers = vpx_svc_dummy_frame(svc_ctx, si) ? 1 : svc_ctx->spatial_layers;
+ if (si->frame_within_gop >= svc_ctx->gop_size ||
+ si->encode_frame_count == 0 ||
+ (si->encode_frame_count == 1 && svc_ctx->first_frame_full_size == 1)) {+ si->frame_within_gop = 0;
+ }
+ si->is_keyframe = (si->frame_within_gop == 0);
+ si->frame_size = 0;
+
+ svc_log(svc_ctx, SVC_LOG_DEBUG,
+ "vpx_svc_encode layers: %d, frame_count: %d, frame_within_gop: %d\n",
+ si->layers, si->encode_frame_count, si->frame_within_gop);
+
+ // encode each layer
+ for (si->layer = 0; si->layer < si->layers; si->layer++) {+ if (svc_ctx->encoding_mode == ALT_INTER_LAYER_PREDICTION_IP &&
+ si->is_keyframe && (si->layer == 1 || si->layer == 3)) {+ svc_log(svc_ctx, SVC_LOG_DEBUG, "Skip encoding layer %d\n", si->layer);
+ continue;
+ }
+ calculate_enc_frame_flags(svc_ctx);
+
+ if (vpx_svc_dummy_frame(svc_ctx, si)) {+ // do not set svc parameters, use normal encode
+ svc_log(svc_ctx, SVC_LOG_DEBUG, "encoding full size first frame\n");
+ } else {+ set_svc_parameters(svc_ctx, codec_ctx);
+ }
+ res = vpx_codec_encode(codec_ctx, rawimg, pts, duration,
+ si->enc_frame_flags, deadline);
+ if (res != VPX_CODEC_OK) {+ return res;
+ }
+ // save compressed data
+ iter = NULL;
+ while ((cx_pkt = vpx_codec_get_cx_data(codec_ctx, &iter))) {+ switch (cx_pkt->kind) {+ case VPX_CODEC_CX_FRAME_PKT:
+ frame_pkt_size = cx_pkt->data.frame.sz;
+ if (!vpx_svc_dummy_frame(svc_ctx, si)) {+ si->bytes_in_layer[si->layer] += frame_pkt_size;
+
+ svc_log(svc_ctx, SVC_LOG_DEBUG,
+ "SVC frame: %d, layer: %d, size: %ld%s\n",
+ si->encode_frame_count, si->layer, frame_pkt_size,
+ svc_ctx->log_print ? normal_color : "");
+ }
+ layer_data = ld_create(cx_pkt->data.frame.buf, frame_pkt_size);
+ if (layer_data == NULL) {+ svc_log(svc_ctx, SVC_LOG_ERROR, "Error allocating LayerData\n");
+ return 0;
+ }
+ ld_list_add(&cx_layer_list, layer_data);
+
+ // save layer size in superframe index
+ superframe.sizes[superframe.count++] = frame_pkt_size;
+ superframe.magnitude |= frame_pkt_size;
+ break;
+ case VPX_CODEC_PSNR_PKT:
+ if (!vpx_svc_dummy_frame(svc_ctx, si)) {+ svc_log(svc_ctx, SVC_LOG_DEBUG,
+ "%sSVC frame: %d, layer: %d, PSNR(Total/Y/U/V): "
+ "%2.3f %2.3f %2.3f %2.3f \n",
+ svc_ctx->log_print ? colors[si->layer] : "",
+ si->encode_frame_count, si->layer,
+ cx_pkt->data.psnr.psnr[0], cx_pkt->data.psnr.psnr[1],
+ cx_pkt->data.psnr.psnr[2], cx_pkt->data.psnr.psnr[3]);
+ si->psnr_in_layer[si->layer] += cx_pkt->data.psnr.psnr[0];
+ }
+ break;
+ default:
+ break;
+ }
+ }
+ }
+ // add superframe index to layer data list
+ if (!vpx_svc_dummy_frame(svc_ctx, si)) {+ sf_create_index(&superframe);
+ layer_data = ld_create(superframe.buffer, superframe.index_size);
+ ld_list_add(&cx_layer_list, layer_data);
+ }
+ // get accumulated size of layer data
+ si->frame_size = ld_list_get_buffer_size(cx_layer_list);
+ if (si->frame_size == 0) return VPX_CODEC_ERROR;
+
+ // all layers encoded, create single buffer with concatenated layers
+ if (si->frame_size > si->buffer_size) {+ free(si->buffer);
+ si->buffer = malloc(si->frame_size);
+ si->buffer_size = si->frame_size;
+ }
+ // copy layer data into packet
+ ld_list_copy_to_buffer(cx_layer_list, si->buffer);
+
+ ld_list_free(cx_layer_list);
+
+ svc_log(svc_ctx, SVC_LOG_DEBUG,
+ "SVC frame: %d, kf: %d, size: %ld, pts: %ld\n",
+ si->encode_frame_count, si->is_keyframe, si->frame_size, pts);
+ si->frame_within_gop++;
+ si->encode_frame_count++;
+
+ return VPX_CODEC_OK;
+}
+
+char* svc_get_message(SvcContext* svc_ctx) {+ SvcInternal* si = (SvcInternal*)svc_ctx->internal;
+ return si->message_buffer;
+}
+
+void* svc_get_buffer(SvcContext* svc_ctx) {+ SvcInternal* si = (SvcInternal*)svc_ctx->internal;
+ return si->buffer;
+}
+
+int svc_get_frame_size(SvcContext* svc_ctx) {+ SvcInternal* si = (SvcInternal*)svc_ctx->internal;
+ return si->frame_size;
+}
+
+int svc_get_encode_frame_count(SvcContext* svc_ctx) {+ SvcInternal* si = (SvcInternal*)svc_ctx->internal;
+ return si->encode_frame_count;
+}
+
+int svc_is_keyframe(SvcContext* svc_ctx) {+ SvcInternal* si = (SvcInternal*)svc_ctx->internal;
+ return (si->is_keyframe);
+}
+
+void svc_set_keyframe(SvcContext* svc_ctx) {+ SvcInternal* si = (SvcInternal*)svc_ctx->internal;
+ si->frame_within_gop = 0;
+}
+
+void svc_dump_statistics(SvcContext* svc_ctx) {+ int number_of_frames, number_of_keyframes, encode_frame_count;
+ int i;
+ int bytes_total = 0;
+ SvcInternal* si = (SvcInternal*)svc_ctx->internal;
+
+ svc_log_reset(svc_ctx);
+
+ encode_frame_count = si->encode_frame_count;
+ if (svc_ctx->first_frame_full_size) encode_frame_count--;
+ if (si->encode_frame_count <= 0) return;
+
+ svc_log(svc_ctx, SVC_LOG_INFO, "\n");
+ number_of_keyframes = encode_frame_count / svc_ctx->gop_size + 1;
+ for (i = 0; i < si->layers; i++) {+ number_of_frames = encode_frame_count;
+
+ if (svc_ctx->encoding_mode == ALT_INTER_LAYER_PREDICTION_IP &&
+ (i == 1 || i == 3)) {+ number_of_frames -= number_of_keyframes;
+ }
+ svc_log(svc_ctx, SVC_LOG_INFO, "Layer %d PSNR=[%2.3f], Bytes=[%d]\n", i,
+ (double)si->psnr_in_layer[i] / number_of_frames,
+ si->bytes_in_layer[i]);
+ bytes_total += si->bytes_in_layer[i];
+ }
+
+ // only display statistics once
+ si->encode_frame_count = 0;
+
+ svc_log(svc_ctx, SVC_LOG_INFO, "Total Bytes=[%d]\n", bytes_total);
+}
+
+static void svc_log_reset(SvcContext* svc_ctx) {+ SvcInternal* si = (SvcInternal*)svc_ctx->internal;
+ si->message_buffer[0] = '\0';
+}
+
+static int svc_log(SvcContext* svc_ctx, int level, char* fmt, ...) {+ char buf[512];
+ int retval = 0;
+ va_list ap;
+ SvcInternal* si = (SvcInternal*)svc_ctx->internal;
+
+ if (level > svc_ctx->log_level) {+ return retval;
+ }
+
+ va_start(ap, fmt);
+ retval = vsnprintf(buf, sizeof(buf), fmt, ap);
+ va_end(ap);
+
+ if (svc_ctx->log_print) {+ printf("%s", buf);+ } else {+ strncat(si->message_buffer, buf,
+ sizeof(si->message_buffer) - strlen(si->message_buffer) - 1);
+ }
+
+ if (level == SVC_LOG_ERROR) {+ si->codec_ctx->err_detail = si->message_buffer;
+ }
+ return retval;
+}
--- /dev/null
+++ b/vpx/svc_context.h
@@ -1,0 +1,62 @@
+/**
+ * SvcContext - input parameters and state to encode a multi-layered
+ * spatial SVC frame
+ */
+
+#ifndef VPX_SVC_CONTEXT_H_
+#define VPX_SVC_CONTEXT_H_
+
+typedef enum SVC_ENCODING_MODE {+ INTER_LAYER_PREDICTION_I,
+ ALT_INTER_LAYER_PREDICTION_IP,
+ INTER_LAYER_PREDICTION_IP,
+ USE_GOLDEN_FRAME
+} SVC_ENCODING_MODE;
+
+typedef enum SVC_LOG_LEVEL {+ SVC_LOG_ERROR,
+ SVC_LOG_INFO,
+ SVC_LOG_DEBUG,
+} SVC_LOG_LEVEL;
+
+typedef struct {+ // public interface to svc_command options
+ int enabled; // set to non-zero to enable svc encoding
+ int spatial_layers; // number of layers
+ int first_frame_full_size; // set to one to force first frame full size
+ SVC_ENCODING_MODE encoding_mode; // svc encoding strategy
+
+ // the following lists are ordered from highest resolution to lowest
+ // if the strings are null, default values are used
+ const char* quantizer_values; // quantizer values, e.g., "27,33,39,53,60"
+ const char* scale_factors; // layer scale factors, e.g.,
+ // "16/16,11/16,7/16,5/16,4/16"
+ int gop_size; // distance between keyframes
+
+ SVC_LOG_LEVEL log_level; // amount of information to display
+ int log_print; // when set, printf log messages instead of returning the
+ // message with svc_get_message
+
+ // private storage for vpx_svc_encode
+ void* internal;
+} SvcContext;
+
+vpx_codec_err_t vpx_svc_init(SvcContext* svc_ctx, vpx_codec_ctx_t* codec_ctx,
+ vpx_codec_iface_t* iface,
+ vpx_codec_enc_cfg_t* cfg);
+
+vpx_codec_err_t vpx_svc_encode(SvcContext* svc_ctx, vpx_codec_ctx_t* codec_ctx,
+ struct vpx_image* rawimg, vpx_codec_pts_t pts,
+ int64_t duration, int deadline);
+
+void svc_dump_statistics(SvcContext* svc_ctx);
+char* svc_get_message(SvcContext* svc_ctx);
+void* svc_get_buffer(SvcContext* svc_ctx);
+vpx_codec_err_t svc_get_layer_resolution(SvcContext* svc_ctx, int layer,
+ unsigned int* width, unsigned int* height);
+int svc_get_frame_size(SvcContext* svc_ctx);
+int svc_get_encode_frame_count(SvcContext* svc_ctx);
+int svc_is_keyframe(SvcContext* svc_ctx);
+void svc_set_keyframe(SvcContext* svc_ctx);
+
+#endif /* VPX_SVC_CONTEXT_H_ */
--- a/vpx/vp8cx.h
+++ b/vpx/vp8cx.h
@@ -195,13 +195,8 @@
VP9E_SET_TILE_ROWS,
VP9E_SET_FRAME_PARALLEL_DECODING,
- VP9E_SET_WIDTH = 99,
- VP9E_SET_HEIGHT,
- VP9E_SET_LAYER,
VP9E_SET_SVC,
-
- VP9E_SET_MAX_Q,
- VP9E_SET_MIN_Q
+ VP9E_SET_SVC_PARAMETERS
};
/*!\brief vpx 1-D scaling mode
@@ -283,6 +278,23 @@
VP8_TUNE_SSIM
} vp8e_tuning;
+/*!\brief vp9 svc parameters
+ *
+ * This defines parameters for svc encoding.
+ *
+ */
+typedef struct vpx_svc_parameters {+ unsigned int width; /**< width of current spatial layer */
+ unsigned int height; /**< height of current spatial layer */
+ int layer; /**< current layer number - 0 = base */
+ int flags; /**< encode frame flags */
+ int max_quantizer; /**< max quantizer for current layer */
+ int min_quantizer; /**< min quantizer for current layer */
+ int distance_from_i_frame; /**< frame number within current gop */
+ int lst_fb_idx; /**< last frame frame buffer index */
+ int gld_fb_idx; /**< golden frame frame buffer index */
+ int alt_fb_idx; /**< alt reference frame frame buffer index */
+} vpx_svc_parameters_t;
/*!\brief VP8 encoder control function parameter type
*
@@ -303,12 +315,9 @@
VPX_CTRL_USE_TYPE(VP8E_SET_ACTIVEMAP, vpx_active_map_t *)
VPX_CTRL_USE_TYPE(VP8E_SET_SCALEMODE, vpx_scaling_mode_t *)
-VPX_CTRL_USE_TYPE(VP9E_SET_LAYER, int *)
VPX_CTRL_USE_TYPE(VP9E_SET_SVC, int)
+VPX_CTRL_USE_TYPE(VP9E_SET_SVC_PARAMETERS, vpx_svc_parameters_t *)
-VPX_CTRL_USE_TYPE(VP9E_SET_WIDTH, unsigned int *)
-VPX_CTRL_USE_TYPE(VP9E_SET_HEIGHT, unsigned int *)
-
VPX_CTRL_USE_TYPE(VP8E_SET_CPUUSED, int)
VPX_CTRL_USE_TYPE(VP8E_SET_ENABLEAUTOALTREF, unsigned int)
VPX_CTRL_USE_TYPE(VP8E_SET_NOISE_SENSITIVITY, unsigned int)
@@ -334,8 +343,6 @@
VPX_CTRL_USE_TYPE(VP9E_SET_FRAME_PARALLEL_DECODING, unsigned int)
-VPX_CTRL_USE_TYPE(VP9E_SET_MAX_Q, unsigned int)
-VPX_CTRL_USE_TYPE(VP9E_SET_MIN_Q, unsigned int)
/*! @} - end defgroup vp8_encoder */
#ifdef __cplusplus
} // extern "C"
--- a/vpx/vpx_codec.mk
+++ b/vpx/vpx_codec.mk
@@ -15,6 +15,8 @@
API_SRCS-$(CONFIG_VP8_ENCODER) += vp8cx.h
API_DOC_SRCS-$(CONFIG_VP8_ENCODER) += vp8.h
API_DOC_SRCS-$(CONFIG_VP8_ENCODER) += vp8cx.h
+API_SRCS-$(CONFIG_VP9_ENCODER) += src/svc_encodeframe.c
+API_SRCS-$(CONFIG_VP9_ENCODER) += svc_context.h
API_SRCS-$(CONFIG_VP8_DECODER) += vp8.h
API_SRCS-$(CONFIG_VP8_DECODER) += vp8dx.h