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
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
+/*
+ * 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
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
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);
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;
}
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);
}
}
-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 *);
-
- if (data) {
- int res;
- res = vp9_set_size_literal(ctx->cpi, 0, *data);
+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 (!res) {
- return VPX_CODEC_OK;
- } else {
- return VPX_CODEC_INVALID_PARAM;
- }
- } else {
+ if (data == NULL) {
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;
+ params = *(vpx_svc_parameters_t *)data;
- res = vp9_switch_layer(ctx->cpi, *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 (!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;
}
{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},
};
* 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
-
-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;
-
-typedef enum ENCODING_MODE {
- INTER_LAYER_PREDICTION_I,
- INTER_LAYER_PREDICTION_IP,
- USE_GOLDEN_FRAME
-} ENCODING_MODE;
-
-static void mem_put_le16(char *mem, unsigned int val) {
+#include "vpx/vpx_encoder.h"
+
+#define VP90_FOURCC 0x30395056
+
+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 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);
}
}
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]);
- }
-
- // Parse required parameters
- if (argc - optind != 2) {
- 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;
- 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);
-
- // 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;
-}
-
-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); */
+ // 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;
+
+ // initialize AppInput with default values
+ app_input->frames_to_code = default_frames_to_code;
+ app_input->frames_to_skip = default_frames_to_skip;
+
+ // 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;
+
+ 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;
+ }
+ }
- vpx_codec_control(codec, VP8E_SET_MAX_INTRA_BITRATE_PCT, max_intra_size_pct);
-}
+ // Check for unrecognized options
+ for (argi = argv; *argi; ++argi)
+ if (argi[0][0] == '-' && strlen(argi[0]) > 1)
+ die("Error: Unrecognized option %s\n", *argi);
-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;
-}
+ if (argv[0] == NULL || argv[1] == 0) {
+ usage(argv_[0]);
+ }
+ app_input->input_filename = argv[0];
+ app_input->output_filename = argv[1];
+ free(argv);
-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]);
-}
+ 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);
-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;
- }
+ 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);
-
- 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 (!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);
+
+ if (!(infile = fopen(app_input.input_filename, "rb")))
+ die("Failed to open %s for reading\n", app_input.input_filename);
+
+ if (!(outfile = fopen(app_input.output_filename, "wb")))
+ die("Failed to open %s for writing\n", app_input.output_filename);
+
+ // 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;
}
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
--- /dev/null
+/*
+ * 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;
+ }
+}
--- /dev/null
+/*
+ * 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_ */
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
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
*
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)
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"
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
projects / platform / upstream / libvpx.git / commitdiff