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Move SVC per-frame loop from sample app into libvpx proper 

SVC multiple layer per frame encoding is invoked with vpx_svc_init and
vpx_svc_encode. These interfaces are designed to be invoked from ffmpeg.
Additional improvements:
- make dummy frame handling a bit more explicit
- fixed bug with single layer encodes
- track individual frame sizes and psnrs instead of averages
- parameterized quantizer, 16th scalefactors, more logging,
- enabled single layer encodes to generate baseline
- include new mode for 3 layer I frame with 5 total layers

Change-Id: I46cfa600d102e208c6af8acd6132e0cc25cda8d4
This commit is contained in:
Ivan Maltz 2013-10-23 11:53:37 -07:00
Родитель 9cc4935d7b
Коммит 1ed0e1beb5
13 изменённых файлов: 1764 добавлений и 473 удалений
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1
examples.mk
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@ -50,6 +50,7 @@ UTILS-$(CONFIG_VP8_ENCODER) += vp8_scalable_patterns.c
vp8_scalable_patterns.GUID = 0D6A210B-F482-4D6F-8570-4A9C01ACC88C
vp8_scalable_patterns.DESCRIPTION = Temporal Scalability Encoder
UTILS-$(CONFIG_VP9_ENCODER) += vp9_spatial_scalable_encoder.c
vp9_spatial_scalable_encoder.SRCS += args.c args.h
vp9_spatial_scalable_encoder.GUID = 4A38598D-627D-4505-9C7B-D4020C84100D
vp9_spatial_scalable_encoder.DESCRIPTION = Spatial Scalable Encoder

1
libs.mk
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@ -122,6 +122,7 @@ ifeq ($(CONFIG_VP9_ENCODER),yes)
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

310
test/svc_test.cc Normal file
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@ -0,0 +1,310 @@
/*
* Copyright (c) 2013 The WebM project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#include <string>
#include "third_party/googletest/src/include/gtest/gtest.h"
#include "test/codec_factory.h"
#include "test/decode_test_driver.h"
#include "test/i420_video_source.h"
#include "vpx/svc_context.h"
#include "vpx/vp8cx.h"
#include "vpx/vpx_encoder.h"
namespace {
using libvpx_test::CodecFactory;
using libvpx_test::Decoder;
using libvpx_test::VP9CodecFactory;
class SvcTest : public ::testing::Test {
protected:
static const uint32_t kWidth = 352;
static const uint32_t kHeight = 288;
SvcTest()
: codec_iface_(0),
test_file_name_("hantro_collage_w352h288.yuv"),
decoder_(0) {}
virtual ~SvcTest() {}
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 = 0;
codec_iface_ = vpx_codec_vp9_cx();
const vpx_codec_err_t res =
vpx_codec_enc_config_default(codec_iface_, &codec_enc_, 0);
EXPECT_EQ(VPX_CODEC_OK, res);
codec_enc_.g_w = kWidth;
codec_enc_.g_h = kHeight;
codec_enc_.g_timebase.num = 1;
codec_enc_.g_timebase.den = 60;
codec_enc_.kf_min_dist = 100;
codec_enc_.kf_max_dist = 100;
vpx_codec_dec_cfg_t dec_cfg = {0};
VP9CodecFactory codec_factory;
decoder_ = codec_factory.CreateDecoder(dec_cfg, 0);
}
virtual void TearDown() {
vpx_svc_release(&svc_);
}
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_;
Decoder *decoder_;
};
TEST_F(SvcTest, SvcInit) {
svc_.spatial_layers = 0; // use default layers
vpx_codec_err_t res = vpx_svc_init(&svc_, &codec_, codec_iface_, &codec_enc_);
EXPECT_EQ(VPX_CODEC_OK, res);
EXPECT_EQ(VPX_SS_DEFAULT_LAYERS, svc_.spatial_layers);
res = vpx_svc_init(NULL, &codec_, codec_iface_, &codec_enc_);
EXPECT_EQ(VPX_CODEC_INVALID_PARAM, res);
res = vpx_svc_init(&svc_, NULL, codec_iface_, &codec_enc_);
EXPECT_EQ(VPX_CODEC_INVALID_PARAM, res);
res = vpx_svc_init(&svc_, &codec_, NULL, &codec_enc_);
EXPECT_EQ(VPX_CODEC_INVALID_PARAM, res);
res = vpx_svc_init(&svc_, &codec_, codec_iface_, NULL);
EXPECT_EQ(VPX_CODEC_INVALID_PARAM, res);
svc_.spatial_layers = 6; // too many layers
res = vpx_svc_init(&svc_, &codec_, codec_iface_, &codec_enc_);
EXPECT_EQ(VPX_CODEC_INVALID_PARAM, res);
svc_.spatial_layers = 2;
vpx_svc_set_scale_factors(&svc_, "4/16,16*16"); // invalid scale values
res = vpx_svc_init(&svc_, &codec_, codec_iface_, &codec_enc_);
EXPECT_EQ(VPX_CODEC_INVALID_PARAM, res);
vpx_svc_set_scale_factors(&svc_, "4/16,16/16"); // valid scale values
res = vpx_svc_init(&svc_, &codec_, codec_iface_, &codec_enc_);
EXPECT_EQ(VPX_CODEC_OK, res);
}
TEST_F(SvcTest, SetOptions) {
vpx_codec_err_t res = vpx_svc_set_options(NULL, "layers=3");
EXPECT_EQ(VPX_CODEC_INVALID_PARAM, res);
vpx_svc_set_options(&svc_, NULL);
EXPECT_EQ(VPX_CODEC_INVALID_PARAM, res);
vpx_svc_set_options(&svc_, "layers=3");
res = vpx_svc_init(&svc_, &codec_, vpx_codec_vp9_cx(), &codec_enc_);
EXPECT_EQ(VPX_CODEC_OK, res);
EXPECT_EQ(3, svc_.spatial_layers);
vpx_svc_set_options(&svc_, "not-an-option=1");
res = vpx_svc_init(&svc_, &codec_, vpx_codec_vp9_cx(), &codec_enc_);
EXPECT_EQ(VPX_CODEC_INVALID_PARAM, res);
vpx_svc_set_options(&svc_, "encoding-mode=alt-ip");
res = vpx_svc_init(&svc_, &codec_, vpx_codec_vp9_cx(), &codec_enc_);
EXPECT_EQ(VPX_CODEC_OK, res);
EXPECT_EQ(ALT_INTER_LAYER_PREDICTION_IP, svc_.encoding_mode);
vpx_svc_set_options(&svc_, "layers=2 encoding-mode=ip");
res = vpx_svc_init(&svc_, &codec_, vpx_codec_vp9_cx(), &codec_enc_);
EXPECT_EQ(VPX_CODEC_OK, res);
EXPECT_EQ(2, svc_.spatial_layers);
EXPECT_EQ(INTER_LAYER_PREDICTION_IP, svc_.encoding_mode);
vpx_svc_set_options(&svc_, "scale-factors=not-scale-factors");
res = vpx_svc_init(&svc_, &codec_, vpx_codec_vp9_cx(), &codec_enc_);
EXPECT_EQ(VPX_CODEC_INVALID_PARAM, res);
vpx_svc_set_options(&svc_, "scale-factors=1/3,2/3");
res = vpx_svc_init(&svc_, &codec_, vpx_codec_vp9_cx(), &codec_enc_);
EXPECT_EQ(VPX_CODEC_OK, res);
vpx_svc_set_options(&svc_, "quantizers=not-quantizers");
res = vpx_svc_init(&svc_, &codec_, vpx_codec_vp9_cx(), &codec_enc_);
EXPECT_EQ(VPX_CODEC_INVALID_PARAM, res);
vpx_svc_set_options(&svc_, "quantizers=40,45");
res = vpx_svc_init(&svc_, &codec_, vpx_codec_vp9_cx(), &codec_enc_);
EXPECT_EQ(VPX_CODEC_OK, res);
}
TEST_F(SvcTest, SetQuantizers) {
vpx_codec_err_t res = vpx_svc_set_quantizers(NULL, "40,30");
EXPECT_EQ(VPX_CODEC_INVALID_PARAM, res);
res = vpx_svc_set_quantizers(&svc_, NULL);
EXPECT_EQ(VPX_CODEC_INVALID_PARAM, res);
svc_.first_frame_full_size = 0;
svc_.spatial_layers = 2;
res = vpx_svc_set_quantizers(&svc_, "40,30");
EXPECT_EQ(VPX_CODEC_OK, res);
res = vpx_svc_init(&svc_, &codec_, vpx_codec_vp9_cx(), &codec_enc_);
EXPECT_EQ(VPX_CODEC_OK, res);
res = vpx_svc_set_quantizers(&svc_, "40");
EXPECT_EQ(VPX_CODEC_OK, res);
res = vpx_svc_init(&svc_, &codec_, vpx_codec_vp9_cx(), &codec_enc_);
EXPECT_EQ(VPX_CODEC_INVALID_PARAM, res);
}
TEST_F(SvcTest, SetScaleFactors) {
vpx_codec_err_t res = vpx_svc_set_scale_factors(NULL, "4/16,16/16");
EXPECT_EQ(VPX_CODEC_INVALID_PARAM, res);
res = vpx_svc_set_scale_factors(&svc_, NULL);
EXPECT_EQ(VPX_CODEC_INVALID_PARAM, res);
svc_.first_frame_full_size = 0;
svc_.spatial_layers = 2;
res = vpx_svc_set_scale_factors(&svc_, "4/16,16/16");
EXPECT_EQ(VPX_CODEC_OK, res);
res = vpx_svc_init(&svc_, &codec_, vpx_codec_vp9_cx(), &codec_enc_);
EXPECT_EQ(VPX_CODEC_OK, res);
res = vpx_svc_set_scale_factors(&svc_, "4/16");
EXPECT_EQ(VPX_CODEC_OK, res);
res = vpx_svc_init(&svc_, &codec_, vpx_codec_vp9_cx(), &codec_enc_);
EXPECT_EQ(VPX_CODEC_INVALID_PARAM, res);
}
// test that decoder can handle an SVC frame as the first frame in a sequence
// this test is disabled since it always fails because of a decoder issue
// https://code.google.com/p/webm/issues/detail?id=654
TEST_F(SvcTest, DISABLED_FirstFrameHasLayers) {
svc_.first_frame_full_size = 0;
svc_.spatial_layers = 2;
vpx_svc_set_scale_factors(&svc_, "4/16,16/16");
vpx_svc_set_quantizers(&svc_, "40,30");
vpx_codec_err_t res =
vpx_svc_init(&svc_, &codec_, vpx_codec_vp9_cx(), &codec_enc_);
EXPECT_EQ(VPX_CODEC_OK, res);
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(VPX_CODEC_OK, res);
const vpx_codec_err_t res_dec = decoder_->DecodeFrame(
static_cast<const uint8_t *>(vpx_svc_get_buffer(&svc_)),
vpx_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;
vpx_svc_set_scale_factors(&svc_, "4/16,16/16");
vpx_svc_set_quantizers(&svc_, "40,30");
vpx_codec_err_t res =
vpx_svc_init(&svc_, &codec_, vpx_codec_vp9_cx(), &codec_enc_);
ASSERT_EQ(VPX_CODEC_OK, res);
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(VPX_CODEC_OK, res);
EXPECT_EQ(1, vpx_svc_is_keyframe(&svc_));
vpx_codec_err_t res_dec = decoder_->DecodeFrame(
static_cast<const uint8_t *>(vpx_svc_get_buffer(&svc_)),
vpx_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(VPX_CODEC_OK, res);
EXPECT_EQ(1, vpx_svc_is_keyframe(&svc_));
res_dec = decoder_->DecodeFrame(
static_cast<const uint8_t *>(vpx_svc_get_buffer(&svc_)),
vpx_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(VPX_CODEC_OK, res);
EXPECT_EQ(0, vpx_svc_is_keyframe(&svc_));
res_dec = decoder_->DecodeFrame(
static_cast<const uint8_t *>(vpx_svc_get_buffer(&svc_)),
vpx_svc_get_frame_size(&svc_));
ASSERT_EQ(VPX_CODEC_OK, res_dec) << decoder_->DecodeError();
}
TEST_F(SvcTest, GetLayerResolution) {
svc_.first_frame_full_size = 0;
svc_.spatial_layers = 2;
vpx_svc_set_scale_factors(&svc_, "4/16,8/16");
vpx_svc_set_quantizers(&svc_, "40,30");
vpx_codec_err_t res =
vpx_svc_init(&svc_, &codec_, vpx_codec_vp9_cx(), &codec_enc_);
EXPECT_EQ(VPX_CODEC_OK, res);
// ensure that requested layer is a valid layer
uint32_t layer_width, layer_height;
res = vpx_svc_get_layer_resolution(&svc_, svc_.spatial_layers,
&layer_width, &layer_height);
EXPECT_EQ(VPX_CODEC_INVALID_PARAM, res);
res = vpx_svc_get_layer_resolution(NULL, 0, &layer_width, &layer_height);
EXPECT_EQ(VPX_CODEC_INVALID_PARAM, res);
res = vpx_svc_get_layer_resolution(&svc_, 0, NULL, &layer_height);
EXPECT_EQ(VPX_CODEC_INVALID_PARAM, res);
res = vpx_svc_get_layer_resolution(&svc_, 0, &layer_width, NULL);
EXPECT_EQ(VPX_CODEC_INVALID_PARAM, res);
res = vpx_svc_get_layer_resolution(&svc_, 0, &layer_width, &layer_height);
EXPECT_EQ(VPX_CODEC_OK, res);
EXPECT_EQ(kWidth * 4 / 16, layer_width);
EXPECT_EQ(kHeight * 4 / 16, layer_height);
res = vpx_svc_get_layer_resolution(&svc_, 1, &layer_width, &layer_height);
EXPECT_EQ(VPX_CODEC_OK, res);
EXPECT_EQ(kWidth * 8 / 16, layer_width);
EXPECT_EQ(kHeight * 8 / 16, layer_height);
}
} // namespace

1
test/test.mk
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@ -96,6 +96,7 @@ LIBVPX_TEST_SRCS-$(CONFIG_VP9_ENCODER) += fdct8x8_test.cc
LIBVPX_TEST_SRCS-$(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

2
vp9/common/vp9_onyx.h
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@ -221,8 +221,6 @@ extern "C"
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);

28
vp9/encoder/vp9_onyx_if.c
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@ -4224,37 +4224,9 @@ int vp9_set_size_literal(VP9_PTR comp, unsigned int width,
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;
}

94
vp9/vp9_cx_iface.c
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@ -442,8 +442,6 @@ static vpx_codec_err_t set_param(vpx_codec_alg_priv_t *ctx,
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);
@ -1029,62 +1027,6 @@ static vpx_codec_err_t vp9e_set_scalemode(vpx_codec_alg_priv_t *ctx,
}
}
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_height(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, 0, *data);
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_layer(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 = 0;
res = vp9_switch_layer(ctx->cpi, *data);
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);
@ -1092,6 +1034,36 @@ static vpx_codec_err_t vp9e_set_svc(vpx_codec_alg_priv_t *ctx, int ctr_id,
return VPX_CODEC_OK;
}
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 == NULL) {
return VPX_CODEC_INVALID_PARAM;
}
params = *(vpx_svc_parameters_t *)data;
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;
if (vp9_set_size_literal(ctx->cpi, params.width, params.height) != 0) {
return VPX_CODEC_INVALID_PARAM;
}
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;
}
static vpx_codec_ctrl_fn_map_t vp9e_ctf_maps[] = {
{VP8_SET_REFERENCE, vp9e_set_reference},
{VP8_COPY_REFERENCE, vp9e_copy_reference},
@ -1116,16 +1088,12 @@ static vpx_codec_ctrl_fn_map_t vp9e_ctf_maps[] = {
{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},
};

630
vp9_spatial_scalable_encoder.c
Просмотреть файл

@ -13,61 +13,101 @@
* VP9 encoding scheme based on spatial scalability for video applications
* that benefit from a scalable bitstream.
*/
#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include <time.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <libgen.h>
#define VPX_CODEC_DISABLE_COMPAT 1
#include "vpx/vpx_encoder.h"
#include <time.h>
#include "./args.h"
#include "vpx/svc_context.h"
#include "vpx/vp8cx.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
#include "vpx/vpx_encoder.h"
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;
#define VP90_FOURCC 0x30395056
typedef enum ENCODING_MODE {
INTER_LAYER_PREDICTION_I,
INTER_LAYER_PREDICTION_IP,
USE_GOLDEN_FRAME
} ENCODING_MODE;
static const struct arg_enum_list encoding_mode_enum[] = {
{"i", INTER_LAYER_PREDICTION_I},
{"alt-ip", ALT_INTER_LAYER_PREDICTION_IP},
{"ip", INTER_LAYER_PREDICTION_IP},
{"gf", USE_GOLDEN_FRAME},
{NULL, 0}
};
static void mem_put_le16(char *mem, unsigned int val) {
static const arg_def_t encoding_mode_arg = ARG_DEF_ENUM(
"m", "encoding-mode", 1, "Encoding mode algorithm", encoding_mode_enum);
static const arg_def_t skip_frames_arg =
ARG_DEF("s", "skip-frames", 1, "input frames to skip");
static const arg_def_t frames_arg =
ARG_DEF("f", "frames", 1, "number of frames to encode");
static const arg_def_t width_arg = ARG_DEF("w", "width", 1, "source width");
static const arg_def_t height_arg = ARG_DEF("h", "height", 1, "source height");
static const arg_def_t timebase_arg =
ARG_DEF("t", "timebase", 1, "timebase (num/den)");
static const arg_def_t bitrate_arg = ARG_DEF(
"b", "target-bitrate", 1, "encoding bitrate, in kilobits per second");
static const arg_def_t layers_arg =
ARG_DEF("l", "layers", 1, "number of SVC layers");
static const arg_def_t kf_dist_arg =
ARG_DEF("k", "kf-dist", 1, "number of frames between keyframes");
static const arg_def_t scale_factors_arg =
ARG_DEF("r", "scale-factors", 1, "scale factors (lowest to highest layer)");
static const arg_def_t quantizers_arg =
ARG_DEF("q", "quantizers", 1, "quantizers (lowest to highest layer)");
static const arg_def_t dummy_frame_arg =
ARG_DEF("z", "dummy-frame", 1, "make first frame blank and full size");
static const arg_def_t *svc_args[] = {
&encoding_mode_arg, &frames_arg, &width_arg, &height_arg,
&timebase_arg, &bitrate_arg, &skip_frames_arg, &layers_arg,
&kf_dist_arg, &scale_factors_arg, &quantizers_arg, &dummy_frame_arg,
NULL
};
static const SVC_ENCODING_MODE default_encoding_mode =
INTER_LAYER_PREDICTION_IP;
static const uint32_t default_frames_to_skip = 0;
static const uint32_t default_frames_to_code = 60 * 60;
static const uint32_t default_width = 1920;
static const uint32_t default_height = 1080;
static const uint32_t default_timebase_num = 1;
static const uint32_t default_timebase_den = 60;
static const uint32_t default_bitrate = 1000;
static const uint32_t default_spatial_layers = 5;
static const uint32_t default_kf_dist = 100;
static const int default_use_dummy_frame = 1;
typedef struct {
char *input_filename;
char *output_filename;
uint32_t frames_to_code;
uint32_t frames_to_skip;
} AppInput;
static void mem_put_le16(char *mem, uint32_t val) {
mem[0] = val;
mem[1] = val >> 8;
}
static void mem_put_le32(char *mem, unsigned int val) {
static void mem_put_le32(char *mem, uint32_t val) {
mem[0] = val;
mem[1] = val >> 8;
mem[2] = val >> 16;
mem[3] = val >> 24;
}
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] "
"<input_filename> <output_filename>\n",
basename(program_name));
static void usage(const char *exec_name) {
fprintf(stderr, "Usage: %s <options> input_filename output_filename\n",
exec_name);
fprintf(stderr, "Options:\n");
arg_show_usage(stderr, svc_args);
exit(EXIT_FAILURE);
}
static void die(const char *fmt, ...) {
void die(const char *fmt, ...) {
va_list ap;
va_start(ap, fmt);
vprintf(fmt, ap);
vfprintf(stderr, fmt, ap);
if (fmt[strlen(fmt) - 1] != '\n') printf("\n");
exit(EXIT_FAILURE);
}
@ -81,407 +121,261 @@ static void die_codec(vpx_codec_ctx_t *ctx, const char *s) {
}
static int read_frame(FILE *f, vpx_image_t *img) {
size_t nbytes, to_read;
size_t nbytes;
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) {
uint8_t *ptr;
const int w = (plane ? (1 + img->d_w) / 2 : img->d_w);
const 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) {
const int 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) {
const size_t 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,
static void write_ivf_file_header(FILE *outfile,
uint32_t width, uint32_t 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, VP90_FOURCC); /* fourcc */
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, (uint32_t)sz);
mem_put_le32(header + 4, pts & 0xFFFFFFFF);
mem_put_le32(header + 8, pts >> 32);
(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) {
unsigned int width = 1920;
unsigned int height = 1080;
unsigned int timebase_num = 1;
unsigned int timebase_den = 60;
unsigned int bitrate = 1000;
int c;
static void parse_command_line(int argc, const char **argv_,
AppInput *app_input, SvcContext *svc_ctx,
vpx_codec_enc_cfg_t *enc_cfg) {
struct arg arg;
char **argv, **argi, **argj;
vpx_codec_err_t res;
opterr = 0;
while ((c = getopt(argc, argv, "f:w:h:n:d:b:s:l:p:")) != -1) switch (c) {
case 'f':
number_frames_to_code = atoi(optarg);
break;
case 'w':
width = atoi(optarg);
break;
case 'h':
height = atoi(optarg);
break;
case 'n':
timebase_num = atoi(optarg);
break;
case 'd':
timebase_den = atoi(optarg);
break;
case 'b':
bitrate = atoi(optarg);
break;
case 's':
number_frames_to_skip = atoi(optarg);
break;
case 'l':
number_spatial_layers = atoi(optarg);
break;
case 'p':
key_period = atoi(optarg);
break;
case '?':
usage(argv[0]);
}
// initialize SvcContext with parameters that will be passed to vpx_svc_init
svc_ctx->log_level = SVC_LOG_DEBUG;
svc_ctx->spatial_layers = default_spatial_layers;
svc_ctx->encoding_mode = default_encoding_mode;
// when using a dummy frame, that frame is only encoded to be full size
svc_ctx->first_frame_full_size = default_use_dummy_frame;
// Parse required parameters
if (argc - optind != 2) {
usage(argv[0]);
}
input_filename = argv[optind];
output_filename = argv[optind + 1];
if (width < 16 || width % 2 || height < 16 || height % 2)
die("Invalid resolution: %d x %d", width, height);
/* Populate encoder configuration */
res = vpx_codec_enc_config_default(interface, cfg, 0);
// start with default encoder configuration
res = vpx_codec_enc_config_default(vpx_codec_vp9_cx(), enc_cfg, 0);
if (res) {
die("Failed to get config: %s\n", vpx_codec_err_to_string(res));
}
printf(
"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",
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);
// update enc_cfg with app default values
enc_cfg->g_w = default_width;
enc_cfg->g_h = default_height;
enc_cfg->g_timebase.num = default_timebase_num;
enc_cfg->g_timebase.den = default_timebase_den;
enc_cfg->rc_target_bitrate = default_bitrate;
enc_cfg->kf_min_dist = default_kf_dist;
enc_cfg->kf_max_dist = default_kf_dist;
// Do minimal check at the application level. Encoder parameters will be
// checked internally
check_parameters();
// initialize AppInput with default values
app_input->frames_to_code = default_frames_to_code;
app_input->frames_to_skip = default_frames_to_skip;
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;
}
// process command line options
argv = argv_dup(argc - 1, argv_ + 1);
for (argi = argj = argv; (*argj = *argi); argi += arg.argv_step) {
arg.argv_step = 1;
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, &current_width);
vpx_codec_control(codec, VP9E_SET_HEIGHT, &current_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;
if (arg_match(&arg, &encoding_mode_arg, argi)) {
svc_ctx->encoding_mode = arg_parse_enum_or_int(&arg);
} else if (arg_match(&arg, &frames_arg, argi)) {
app_input->frames_to_code = arg_parse_uint(&arg);
} else if (arg_match(&arg, &width_arg, argi)) {
enc_cfg->g_w = arg_parse_uint(&arg);
} else if (arg_match(&arg, &height_arg, argi)) {
enc_cfg->g_h = arg_parse_uint(&arg);
} else if (arg_match(&arg, &height_arg, argi)) {
enc_cfg->g_h = arg_parse_uint(&arg);
} else if (arg_match(&arg, &timebase_arg, argi)) {
enc_cfg->g_timebase = arg_parse_rational(&arg);
} else if (arg_match(&arg, &bitrate_arg, argi)) {
enc_cfg->rc_target_bitrate = arg_parse_uint(&arg);
} else if (arg_match(&arg, &skip_frames_arg, argi)) {
app_input->frames_to_skip = arg_parse_uint(&arg);
} else if (arg_match(&arg, &layers_arg, argi)) {
svc_ctx->spatial_layers = arg_parse_uint(&arg);
} else if (arg_match(&arg, &kf_dist_arg, argi)) {
enc_cfg->kf_min_dist = arg_parse_uint(&arg);
enc_cfg->kf_max_dist = enc_cfg->kf_min_dist;
} else if (arg_match(&arg, &scale_factors_arg, argi)) {
vpx_svc_set_scale_factors(svc_ctx, arg.val);
} else if (arg_match(&arg, &quantizers_arg, argi)) {
vpx_svc_set_quantizers(svc_ctx, arg.val);
} else if (arg_match(&arg, &dummy_frame_arg, argi)) {
svc_ctx->first_frame_full_size = arg_parse_int(&arg);
} else {
++argj;
}
}
// Check for unrecognized options
for (argi = argv; *argi; ++argi)
if (argi[0][0] == '-' && strlen(argi[0]) > 1)
die("Error: Unrecognized option %s\n", *argi);
if (argv[0] == NULL || argv[1] == 0) {
usage(argv_[0]);
}
app_input->input_filename = argv[0];
app_input->output_filename = argv[1];
free(argv);
if (enc_cfg->g_w < 16 || enc_cfg->g_w % 2 || enc_cfg->g_h < 16 ||
enc_cfg->g_h % 2)
die("Invalid resolution: %d x %d\n", enc_cfg->g_w, enc_cfg->g_h);
printf(
"Codec %s\nframes: %d, skip: %d\n"
"mode: %d, layers: %d\n"
"width %d, height: %d,\n"
"num: %d, den: %d, bitrate: %d,\n"
"gop size: %d, use_dummy_frame: %d\n",
vpx_codec_iface_name(vpx_codec_vp9_cx()), app_input->frames_to_code,
app_input->frames_to_skip, svc_ctx->encoding_mode,
svc_ctx->spatial_layers, enc_cfg->g_w, enc_cfg->g_h,
enc_cfg->g_timebase.num, enc_cfg->g_timebase.den,
enc_cfg->rc_target_bitrate, enc_cfg->kf_max_dist,
svc_ctx->first_frame_full_size);
}
int main(int argc, char **argv) {
FILE *infile, *outfile[MAX_LAYERS];
int main(int argc, const char **argv) {
AppInput app_input = {0};
FILE *infile, *outfile;
vpx_codec_ctx_t codec;
vpx_codec_enc_cfg_t cfg;
int frame_cnt = 0;
vpx_codec_enc_cfg_t enc_cfg;
SvcContext svc_ctx;
uint32_t i;
uint32_t 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, &app_input, &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 %dx%d\n", enc_cfg.g_w, enc_cfg.g_h);
set_default_configuration(&cfg);
if (!(infile = fopen(app_input.input_filename, "rb")))
die("Failed to open %s for reading\n", app_input.input_filename);
/* Open input file */
if (!(infile = fopen(input_filename, "rb")))
die("Failed to open %s for reading", argv[1]);
if (!(outfile = fopen(app_input.output_filename, "wb")))
die("Failed to open %s for writing\n", app_input.output_filename);
/* 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);
}
// Initialize codec
if (vpx_svc_init(&svc_ctx, &codec, vpx_codec_vp9_cx(), &enc_cfg) !=
VPX_CODEC_OK)
die("Failed to initialize encoder\n");
initialize_codec(&codec, &cfg);
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++) {
for (i = 0; i < app_input.frames_to_skip; ++i) {
read_frame(infile, &raw);
}
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 <= app_input.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", vpx_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;
}
}
frame_cnt++;
// TODO(ivan): Modify ts later if(!layer)
if (vpx_svc_get_frame_size(&svc_ctx) > 0) {
write_ivf_frame_header(outfile, pts, vpx_svc_get_frame_size(&svc_ctx));
(void)fwrite(vpx_svc_get_buffer(&svc_ctx), 1,
vpx_svc_get_frame_size(&svc_ctx), outfile);
}
++frame_cnt;
pts += frame_duration;
}
// end while
after = clock();
printf("Processed %d frames in different resolutions in %ld ms.\n",
frame_cnt - 1, (int)(after - before) / (CLOCKS_PER_SEC / 1000));
printf("Processed %d frames\n", frame_cnt - svc_ctx.first_frame_full_size);
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);
vpx_img_free(&raw);
// display average size, psnr
printf("%s", vpx_svc_dump_statistics(&svc_ctx));
vpx_svc_release(&svc_ctx);
return EXIT_SUCCESS;
}

14
vpx/exports_enc
Просмотреть файл

@ -6,3 +6,17 @@ text vpx_codec_get_cx_data
text vpx_codec_get_global_headers
text vpx_codec_get_preview_frame
text vpx_codec_set_cx_data_buf
text vpx_svc_dump_statistics
text vpx_svc_encode
text vpx_svc_free
text vpx_svc_get_buffer
text vpx_svc_get_encode_frame_count
text vpx_svc_get_frame_size
text vpx_svc_get_message
text vpx_svc_init
text vpx_svc_is_keyframe
text vpx_svc_release
text vpx_svc_set_keyframe
text vpx_svc_set_options
text vpx_svc_set_quantizers
text vpx_svc_set_scale_factors

981
vpx/src/svc_encodeframe.c Normal file
Просмотреть файл

@ -0,0 +1,981 @@
/*
* Copyright (c) 2013 The WebM project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
/**
* @file
* VP9 SVC encoding support via libvpx
*/
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define VPX_DISABLE_CTRL_TYPECHECKS 1
#define VPX_CODEC_DISABLE_COMPAT 1
#include "vpx/svc_context.h"
#include "vpx/vp8cx.h"
#include "vpx/vpx_encoder.h"
#if defined(__MINGW32__) && !defined(MINGW_HAS_SECURE_API)
#define strtok_r strtok_s
// proto from /usr/x86_64-w64-mingw32/include/sec_api/string_s.h
_CRTIMP char *__cdecl strtok_s(char *str, const char *delim, char **context);
#endif
#ifdef _MSC_VER
#define strdup _strdup
#define strtok_r strtok_s
#endif
#define SVC_REFERENCE_FRAMES 8
#define SUPERFRAME_SLOTS (8)
#define SUPERFRAME_BUFFER_SIZE (SUPERFRAME_SLOTS * sizeof(uint32_t) + 2)
#define OPTION_BUFFER_SIZE 256
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";
typedef struct SvcInternal {
char options[OPTION_BUFFER_SIZE]; // set by vpx_svc_set_options
char quantizers[OPTION_BUFFER_SIZE]; // set by vpx_svc_set_quantizers
char scale_factors[OPTION_BUFFER_SIZE]; // set by vpx_svc_set_scale_factors
// values extracted from option, quantizers
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];
uint32_t bytes_in_layer[VPX_SS_MAX_LAYERS];
// codec encoding values
int width; // width of highest layer
int height; // height of highest layer
int kf_dist; // distance between keyframes
// 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;
// Superframe is used to generate an index of individual frames (i.e., layers)
struct Superframe {
int count;
uint32_t sizes[SUPERFRAME_SLOTS];
uint32_t magnitude;
uint8_t buffer[SUPERFRAME_BUFFER_SIZE];
size_t index_size;
};
// One encoded frame layer
struct LayerData {
void *buf; // compressed data buffer
size_t size; // length of compressed data
struct LayerData *next;
};
// create LayerData from encoder output
static struct LayerData *ld_create(void *buf, size_t size) {
struct LayerData *const layer_data = malloc(sizeof(*layer_data));
if (layer_data == NULL) {
return NULL;
}
layer_data->buf = malloc(size);
if (layer_data->buf == NULL) {
free(layer_data);
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) {
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;
}
}
static void sf_create_index(struct Superframe *sf) {
uint8_t marker = 0xc0;
int i;
uint32_t mag, mask;
uint8_t *bufp;
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) {
int this_sz = sf->sizes[i];
uint32_t j;
for (j = 0; j <= mag; ++j) {
*bufp++ = this_sz & 0xff;
this_sz >>= 8;
}
}
*bufp++ = marker;
}
static SvcInternal *get_svc_internal(SvcContext *svc_ctx) {
if (svc_ctx == NULL) return NULL;
if (svc_ctx->internal == NULL) {
SvcInternal *const si = malloc(sizeof(*si));
if (si != NULL) {
memset(si, 0, sizeof(*si));
}
svc_ctx->internal = si;
}
return svc_ctx->internal;
}
static const SvcInternal *get_const_svc_internal(const SvcContext *svc_ctx) {
if (svc_ctx == NULL) return NULL;
return svc_ctx->internal;
}
static void svc_log_reset(SvcContext *svc_ctx) {
SvcInternal *const si = (SvcInternal *)svc_ctx->internal;
si->message_buffer[0] = '\0';
}
static int svc_log(SvcContext *svc_ctx, int level, const char *fmt, ...) {
char buf[512];
int retval = 0;
va_list ap;
SvcInternal *const si = get_svc_internal(svc_ctx);
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;
}
static vpx_codec_err_t set_option_encoding_mode(SvcContext *svc_ctx,
const char *value_str) {
if (strcmp(value_str, "i") == 0) {
svc_ctx->encoding_mode = INTER_LAYER_PREDICTION_I;
} else if (strcmp(value_str, "alt-ip") == 0) {
svc_ctx->encoding_mode = ALT_INTER_LAYER_PREDICTION_IP;
} else if (strcmp(value_str, "ip") == 0) {
svc_ctx->encoding_mode = INTER_LAYER_PREDICTION_IP;
} else if (strcmp(value_str, "gf") == 0) {
svc_ctx->encoding_mode = USE_GOLDEN_FRAME;
} else {
svc_log(svc_ctx, SVC_LOG_ERROR, "invalid encoding mode: %s", value_str);
return VPX_CODEC_INVALID_PARAM;
}
return VPX_CODEC_OK;
}
static vpx_codec_err_t parse_quantizer_values(SvcContext *svc_ctx,
const char *quantizer_values) {
char *input_string;
char *token;
const char *delim = ",";
char *save_ptr;
int found = 0;
int i, q;
int res = VPX_CODEC_OK;
SvcInternal *const si = get_svc_internal(svc_ctx);
if (quantizer_values == NULL || strlen(quantizer_values) == 0) {
input_string = strdup(DEFAULT_QUANTIZER_VALUES);
} else {
input_string = strdup(quantizer_values);
}
token = strtok_r(input_string, delim, &save_ptr);
for (i = 0; i < svc_ctx->spatial_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 %s\n", token);
res = VPX_CODEC_INVALID_PARAM;
break;
}
token = strtok_r(NULL, delim, &save_ptr);
found = i + 1;
} else {
q = 0;
}
si->quantizer[i + VPX_SS_MAX_LAYERS - svc_ctx->spatial_layers] = q;
}
if (res == VPX_CODEC_OK && found != svc_ctx->spatial_layers) {
svc_log(svc_ctx, SVC_LOG_ERROR,
"svc: quantizers: %d values required, but only %d specified\n",
svc_ctx->spatial_layers, found);
res = VPX_CODEC_INVALID_PARAM;
}
free(input_string);
return res;
}
static void log_invalid_scale_factor(SvcContext *svc_ctx, const char *value) {
svc_log(svc_ctx, SVC_LOG_ERROR, "svc scale-factors: invalid value %s\n",
value);
}
static vpx_codec_err_t parse_scale_factors(SvcContext *svc_ctx,
const char *scale_factors) {
char *input_string;
char *token;
const char *delim = ",";
char *save_ptr;
int found = 0;
int i;
int64_t num, den;
int res = VPX_CODEC_OK;
SvcInternal *const si = get_svc_internal(svc_ctx);
if (scale_factors == NULL || strlen(scale_factors) == 0) {
input_string = strdup(DEFAULT_SCALE_FACTORS);
} else {
input_string = strdup(scale_factors);
}
token = strtok_r(input_string, delim, &save_ptr);
for (i = 0; i < svc_ctx->spatial_layers; ++i) {
num = den = 0;
if (token != NULL) {
num = strtol(token, &token, 10);
if (num <= 0) {
log_invalid_scale_factor(svc_ctx, token);
res = VPX_CODEC_INVALID_PARAM;
break;
}
if (*token++ != '/') {
log_invalid_scale_factor(svc_ctx, token);
res = VPX_CODEC_INVALID_PARAM;
break;
}
den = strtol(token, &token, 10);
if (den <= 0) {
log_invalid_scale_factor(svc_ctx, token);
res = VPX_CODEC_INVALID_PARAM;
break;
}
token = strtok_r(NULL, delim, &save_ptr);
found = i + 1;
}
si->scaling_factor_num[i + VPX_SS_MAX_LAYERS - svc_ctx->spatial_layers] =
(int)num;
si->scaling_factor_den[i + VPX_SS_MAX_LAYERS - svc_ctx->spatial_layers] =
(int)den;
}
if (res == VPX_CODEC_OK && found != svc_ctx->spatial_layers) {
svc_log(svc_ctx, SVC_LOG_ERROR,
"svc: scale-factors: %d values required, but only %d specified\n",
svc_ctx->spatial_layers, found);
res = VPX_CODEC_INVALID_PARAM;
}
free(input_string);
return res;
}
/**
* Parse SVC encoding options
* Format: encoding-mode=<svc_mode>,layers=<layer_count>
* scale-factors=<n1>/<d1>,<n2>/<d2>,...
* quantizers=<q1>,<q2>,...
* svc_mode = [i|ip|alt_ip|gf]
*/
static vpx_codec_err_t parse_options(SvcContext *svc_ctx, const char *options) {
char *input_string;
char *option_name;
char *option_value;
char *input_ptr;
int res = VPX_CODEC_OK;
if (options == NULL) return VPX_CODEC_OK;
input_string = strdup(options);
// parse option name
option_name = strtok_r(input_string, "=", &input_ptr);
while (option_name != NULL) {
// parse option value
option_value = strtok_r(NULL, " ", &input_ptr);
if (option_value == NULL) {
svc_log(svc_ctx, SVC_LOG_ERROR, "option missing value: %s\n",
option_name);
res = VPX_CODEC_INVALID_PARAM;
break;
}
if (strcmp("encoding-mode", option_name) == 0) {
res = set_option_encoding_mode(svc_ctx, option_value);
if (res != VPX_CODEC_OK) break;
} else if (strcmp("layers", option_name) == 0) {
svc_ctx->spatial_layers = atoi(option_value);
} else if (strcmp("scale-factors", option_name) == 0) {
res = parse_scale_factors(svc_ctx, option_value);
if (res != VPX_CODEC_OK) break;
} else if (strcmp("quantizers", option_name) == 0) {
res = parse_quantizer_values(svc_ctx, option_value);
if (res != VPX_CODEC_OK) break;
} else {
svc_log(svc_ctx, SVC_LOG_ERROR, "invalid option: %s\n", option_name);
res = VPX_CODEC_INVALID_PARAM;
break;
}
option_name = strtok_r(NULL, "=", &input_ptr);
}
free(input_string);
return res;
}
vpx_codec_err_t vpx_svc_set_options(SvcContext *svc_ctx, const char *options) {
SvcInternal *const si = get_svc_internal(svc_ctx);
if (svc_ctx == NULL || options == NULL || si == NULL) {
return VPX_CODEC_INVALID_PARAM;
}
strncpy(si->options, options, sizeof(si->options));
si->options[sizeof(si->options) - 1] = '\0';
return VPX_CODEC_OK;
}
vpx_codec_err_t vpx_svc_set_quantizers(SvcContext *svc_ctx,
const char *quantizers) {
SvcInternal *const si = get_svc_internal(svc_ctx);
if (svc_ctx == NULL || quantizers == NULL || si == NULL) {
return VPX_CODEC_INVALID_PARAM;
}
strncpy(si->quantizers, quantizers, sizeof(si->quantizers));
si->quantizers[sizeof(si->quantizers) - 1] = '\0';
return VPX_CODEC_OK;
}
vpx_codec_err_t vpx_svc_set_scale_factors(SvcContext *svc_ctx,
const char *scale_factors) {
SvcInternal *const si = get_svc_internal(svc_ctx);
if (svc_ctx == NULL || scale_factors == NULL || si == NULL) {
return VPX_CODEC_INVALID_PARAM;
}
strncpy(si->scale_factors, scale_factors, sizeof(si->scale_factors));
si->scale_factors[sizeof(si->scale_factors) - 1] = '\0';
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 *const si = get_svc_internal(svc_ctx);
if (svc_ctx == NULL || codec_ctx == NULL || iface == NULL ||
enc_cfg == NULL) {
return VPX_CODEC_INVALID_PARAM;
}
if (si == NULL) return VPX_CODEC_MEM_ERROR;
si->codec_ctx = codec_ctx;
si->width = enc_cfg->g_w;
si->height = enc_cfg->g_h;
if (enc_cfg->kf_max_dist < 2) {
svc_log(svc_ctx, SVC_LOG_ERROR, "key frame distance too small: %d\n",
enc_cfg->kf_max_dist);
return VPX_CODEC_INVALID_PARAM;
}
si->kf_dist = enc_cfg->kf_max_dist;
if (svc_ctx->spatial_layers == 0)
svc_ctx->spatial_layers = VPX_SS_DEFAULT_LAYERS;
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;
}
// use SvcInternal value for number of layers to enable forcing single layer
// for first frame
si->layers = svc_ctx->spatial_layers;
res = parse_quantizer_values(svc_ctx, si->quantizers);
if (res != VPX_CODEC_OK) return res;
res = parse_scale_factors(svc_ctx, si->scale_factors);
if (res != VPX_CODEC_OK) return res;
// parse aggregate command line options
res = parse_options(svc_ctx, si->options);
if (res != VPX_CODEC_OK) return res;
// modify encoder configuration
enc_cfg->ss_number_layers = si->layers;
enc_cfg->kf_mode = VPX_KF_DISABLED;
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;
// 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);
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;
}
/**
* Helper to check if the current frame is the first, full resolution dummy.
*/
static int vpx_svc_dummy_frame(SvcContext *svc_ctx) {
SvcInternal *const si = get_svc_internal(svc_ctx);
return svc_ctx->first_frame_full_size == 1 && si->encode_frame_count == 0;
}
static void calculate_enc_frame_flags(SvcContext *svc_ctx) {
vpx_enc_frame_flags_t flags = VPX_EFLAG_FORCE_KF;
SvcInternal *const si = get_svc_internal(svc_ctx);
const 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->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 vpx_svc_get_layer_resolution(const SvcContext *svc_ctx,
int layer,
unsigned int *width,
unsigned int *height) {
int w, h, index, num, den;
const SvcInternal *const si = get_const_svc_internal(svc_ctx);
if (svc_ctx == NULL || si == NULL || width == NULL || height == NULL) {
return VPX_CODEC_INVALID_PARAM;
}
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;
SvcInternal *const si = get_svc_internal(svc_ctx);
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 != vpx_svc_get_layer_resolution(svc_ctx, layer,
&svc_params.width,
&svc_params.height)) {
svc_log(svc_ctx, SVC_LOG_ERROR, "vpx_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) {
const int 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, "SVC frame: %d, layer: %d, %dx%d, q: %d\n",
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);
}
/**
* 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;
struct Superframe superframe;
SvcInternal *const si = get_svc_internal(svc_ctx);
if (svc_ctx == NULL || codec_ctx == NULL || rawimg == NULL || si == NULL) {
return VPX_CODEC_INVALID_PARAM;
}
memset(&superframe, 0, sizeof(superframe));
svc_log_reset(svc_ctx);
si->layers = vpx_svc_dummy_frame(svc_ctx) ? 1 : svc_ctx->spatial_layers;
if (si->frame_within_gop >= si->kf_dist ||
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)) {
// 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, (uint32_t)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: {
const uint32_t frame_pkt_size = (uint32_t)(cx_pkt->data.frame.sz);
if (!vpx_svc_dummy_frame(svc_ctx)) {
si->bytes_in_layer[si->layer] += frame_pkt_size;
svc_log(svc_ctx, SVC_LOG_DEBUG,
"SVC frame: %d, layer: %d, size: %u\n",
si->encode_frame_count, si->layer, frame_pkt_size);
}
layer_data =
ld_create(cx_pkt->data.frame.buf, (size_t)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)) {
svc_log(svc_ctx, SVC_LOG_DEBUG,
"SVC frame: %d, layer: %d, PSNR(Total/Y/U/V): "
"%2.3f %2.3f %2.3f %2.3f \n",
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)) {
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);
if (si->buffer == NULL) {
ld_list_free(cx_layer_list);
return VPX_CODEC_MEM_ERROR;
}
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: %d, pts: %d\n",
si->encode_frame_count, si->is_keyframe, (int)si->frame_size,
(int)pts);
++si->frame_within_gop;
++si->encode_frame_count;
return VPX_CODEC_OK;
}
const char *vpx_svc_get_message(const SvcContext *svc_ctx) {
const SvcInternal *const si = get_const_svc_internal(svc_ctx);
if (svc_ctx == NULL || si == NULL) return NULL;
return si->message_buffer;
}
void *vpx_svc_get_buffer(const SvcContext *svc_ctx) {
const SvcInternal *const si = get_const_svc_internal(svc_ctx);
if (svc_ctx == NULL || si == NULL) return NULL;
return si->buffer;
}
size_t vpx_svc_get_frame_size(const SvcContext *svc_ctx) {
const SvcInternal *const si = get_const_svc_internal(svc_ctx);
if (svc_ctx == NULL || si == NULL) return 0;
return si->frame_size;
}
int vpx_svc_get_encode_frame_count(const SvcContext *svc_ctx) {
const SvcInternal *const si = get_const_svc_internal(svc_ctx);
if (svc_ctx == NULL || si == NULL) return 0;
return si->encode_frame_count;
}
int vpx_svc_is_keyframe(const SvcContext *svc_ctx) {
const SvcInternal *const si = get_const_svc_internal(svc_ctx);
if (svc_ctx == NULL || si == NULL) return 0;
return si->is_keyframe;
}
void vpx_svc_set_keyframe(SvcContext *svc_ctx) {
SvcInternal *const si = get_svc_internal(svc_ctx);
if (svc_ctx == NULL || si == NULL) return;
si->frame_within_gop = 0;
}
// dump accumulated statistics and reset accumulated values
const char *vpx_svc_dump_statistics(SvcContext *svc_ctx) {
int number_of_frames, number_of_keyframes, encode_frame_count;
int i;
uint32_t bytes_total = 0;
SvcInternal *const si = get_svc_internal(svc_ctx);
if (svc_ctx == NULL || si == NULL) return NULL;
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 vpx_svc_get_message(svc_ctx);
svc_log(svc_ctx, SVC_LOG_INFO, "\n");
number_of_keyframes = encode_frame_count / si->kf_dist + 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=[%u]\n", i,
(double)si->psnr_in_layer[i] / number_of_frames,
si->bytes_in_layer[i]);
bytes_total += si->bytes_in_layer[i];
si->psnr_in_layer[i] = 0;
si->bytes_in_layer[i] = 0;
}
// only display statistics once
si->encode_frame_count = 0;
svc_log(svc_ctx, SVC_LOG_INFO, "Total Bytes=[%u]\n", bytes_total);
return vpx_svc_get_message(svc_ctx);
}
void vpx_svc_release(SvcContext *svc_ctx) {
SvcInternal *si;
if (svc_ctx == NULL) return;
// do not use get_svc_internal as it will unnecessarily allocate an
// SvcInternal if it was not already allocated
si = (SvcInternal *)svc_ctx->internal;
if (si != NULL) {
free(si->buffer);
free(si);
svc_ctx->internal = NULL;
}
}

142
vpx/svc_context.h Normal file
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@ -0,0 +1,142 @@
/*
* Copyright (c) 2013 The WebM project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
/**
* SvcContext - input parameters and state to encode a multi-layered
* spatial SVC frame
*/
#ifndef VPX_SVC_CONTEXT_H_
#define VPX_SVC_CONTEXT_H_
#include "vpx/vp8cx.h"
#include "vpx/vpx_encoder.h"
#ifdef __cplusplus
extern "C" {
#endif
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 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
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;
/**
* Set SVC options
* options are supplied as a single string separated by spaces
* Format: encoding-mode=<i|ip|alt-ip|gf>
* layers=<layer_count>
* scaling-factors=<n1>/<d1>,<n2>/<d2>,...
* quantizers=<q1>,<q2>,...
*/
vpx_codec_err_t vpx_svc_set_options(SvcContext *svc_ctx, const char *options);
/**
* Set SVC quantizer values
* values comma separated, ordered from lowest resolution to highest
* e.g., "60,53,39,33,27"
*/
vpx_codec_err_t vpx_svc_set_quantizers(SvcContext *svc_ctx,
const char *quantizer_values);
/**
* Set SVC scale factors
* values comma separated, ordered from lowest resolution to highest
* e.g., "4/16,5/16,7/16,11/16,16/16"
*/
vpx_codec_err_t vpx_svc_set_scale_factors(SvcContext *svc_ctx,
const char *scale_factors);
/**
* initialize SVC encoding
*/
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);
/**
* encode a frame of video with multiple 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);
/**
* finished with svc encoding, release allocated resources
*/
void vpx_svc_release(SvcContext *svc_ctx);
/**
* dump accumulated statistics and reset accumulated values
*/
const char *vpx_svc_dump_statistics(SvcContext *svc_ctx);
/**
* get status message from previous encode
*/
const char *vpx_svc_get_message(const SvcContext *svc_ctx);
/**
* return size of encoded data to be returned by vpx_svc_get_buffer
*/
size_t vpx_svc_get_frame_size(const SvcContext *svc_ctx);
/**
* return buffer with encoded data
*/
void *vpx_svc_get_buffer(const SvcContext *svc_ctx);
/**
* return spatial resolution of the specified layer
*/
vpx_codec_err_t vpx_svc_get_layer_resolution(const SvcContext *svc_ctx,
int layer,
unsigned int *width,
unsigned int *height);
/**
* return number of frames that have been encoded
*/
int vpx_svc_get_encode_frame_count(const SvcContext *svc_ctx);
/**
* return 1 if last encoded frame was a keyframe
*/
int vpx_svc_is_keyframe(const SvcContext *svc_ctx);
/**
* force the next frame to be a keyframe
*/
void vpx_svc_set_keyframe(SvcContext *svc_ctx);
#ifdef __cplusplus
} // extern "C"
#endif
#endif /* VPX_SVC_CONTEXT_H_ */

31
vpx/vp8cx.h
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@ -195,13 +195,8 @@ enum vp8e_enc_control_id {
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 @@ typedef enum {
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
*
@ -303,11 +315,8 @@ VPX_CTRL_USE_TYPE(VP8E_SET_ROI_MAP, vpx_roi_map_t *)
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_WIDTH, unsigned int *)
VPX_CTRL_USE_TYPE(VP9E_SET_HEIGHT, unsigned int *)
VPX_CTRL_USE_TYPE(VP9E_SET_SVC_PARAMETERS, vpx_svc_parameters_t *)
VPX_CTRL_USE_TYPE(VP8E_SET_CPUUSED, int)
VPX_CTRL_USE_TYPE(VP8E_SET_ENABLEAUTOALTREF, unsigned int)
@ -334,8 +343,6 @@ VPX_CTRL_USE_TYPE(VP9E_SET_LOSSLESS, unsigned int)
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"

2
vpx/vpx_codec.mk
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@ -15,6 +15,8 @@ API_SRCS-$(CONFIG_VP8_ENCODER) += vp8.h
API_SRCS-$(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