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      1 /*
      2  *  Copyright (c) 2013 The WebM project authors. All Rights Reserved.
      3  *
      4  *  Use of this source code is governed by a BSD-style license
      5  *  that can be found in the LICENSE file in the root of the source
      6  *  tree. An additional intellectual property rights grant can be found
      7  *  in the file PATENTS.  All contributing project authors may
      8  *  be found in the AUTHORS file in the root of the source tree.
      9  */
     10 
     11 #include <string>
     12 #include "third_party/googletest/src/include/gtest/gtest.h"
     13 #include "test/codec_factory.h"
     14 #include "test/decode_test_driver.h"
     15 #include "test/i420_video_source.h"
     16 
     17 #include "vp9/decoder/vp9_decoder.h"
     18 
     19 #include "vpx/svc_context.h"
     20 #include "vpx/vp8cx.h"
     21 #include "vpx/vpx_encoder.h"
     22 
     23 namespace {
     24 
     25 using libvpx_test::CodecFactory;
     26 using libvpx_test::Decoder;
     27 using libvpx_test::DxDataIterator;
     28 using libvpx_test::VP9CodecFactory;
     29 
     30 class SvcTest : public ::testing::Test {
     31  protected:
     32   static const uint32_t kWidth = 352;
     33   static const uint32_t kHeight = 288;
     34 
     35   SvcTest()
     36       : codec_iface_(0),
     37         test_file_name_("hantro_collage_w352h288.yuv"),
     38         codec_initialized_(false),
     39         decoder_(0) {
     40     memset(&svc_, 0, sizeof(svc_));
     41     memset(&codec_, 0, sizeof(codec_));
     42     memset(&codec_enc_, 0, sizeof(codec_enc_));
     43   }
     44 
     45   virtual ~SvcTest() {}
     46 
     47   virtual void SetUp() {
     48     svc_.log_level = SVC_LOG_DEBUG;
     49     svc_.log_print = 0;
     50 
     51     codec_iface_ = vpx_codec_vp9_cx();
     52     const vpx_codec_err_t res =
     53         vpx_codec_enc_config_default(codec_iface_, &codec_enc_, 0);
     54     EXPECT_EQ(VPX_CODEC_OK, res);
     55 
     56     codec_enc_.g_w = kWidth;
     57     codec_enc_.g_h = kHeight;
     58     codec_enc_.g_timebase.num = 1;
     59     codec_enc_.g_timebase.den = 60;
     60     codec_enc_.kf_min_dist = 100;
     61     codec_enc_.kf_max_dist = 100;
     62 
     63     vpx_codec_dec_cfg_t dec_cfg = vpx_codec_dec_cfg_t();
     64     VP9CodecFactory codec_factory;
     65     decoder_ = codec_factory.CreateDecoder(dec_cfg, 0);
     66   }
     67 
     68   virtual void TearDown() {
     69     ReleaseEncoder();
     70     delete(decoder_);
     71   }
     72 
     73   void InitializeEncoder() {
     74     const vpx_codec_err_t res =
     75         vpx_svc_init(&svc_, &codec_, vpx_codec_vp9_cx(), &codec_enc_);
     76     EXPECT_EQ(VPX_CODEC_OK, res);
     77     vpx_codec_control(&codec_, VP8E_SET_CPUUSED, 4);  // Make the test faster
     78     codec_initialized_ = true;
     79   }
     80 
     81   void ReleaseEncoder() {
     82     vpx_svc_release(&svc_);
     83     if (codec_initialized_) vpx_codec_destroy(&codec_);
     84     codec_initialized_ = false;
     85   }
     86 
     87   void GetStatsData(std::string *const stats_buf) {
     88     vpx_codec_iter_t iter = NULL;
     89     const vpx_codec_cx_pkt_t *cx_pkt;
     90 
     91     while ((cx_pkt = vpx_codec_get_cx_data(&codec_, &iter)) != NULL) {
     92       if (cx_pkt->kind == VPX_CODEC_STATS_PKT) {
     93         EXPECT_GT(cx_pkt->data.twopass_stats.sz, 0U);
     94         ASSERT_TRUE(cx_pkt->data.twopass_stats.buf != NULL);
     95         stats_buf->append(static_cast<char*>(cx_pkt->data.twopass_stats.buf),
     96                           cx_pkt->data.twopass_stats.sz);
     97       }
     98     }
     99   }
    100 
    101   void Pass1EncodeNFrames(const int n, const int layers,
    102                           std::string *const stats_buf) {
    103     vpx_codec_err_t res;
    104 
    105     ASSERT_GT(n, 0);
    106     ASSERT_GT(layers, 0);
    107     svc_.spatial_layers = layers;
    108     codec_enc_.g_pass = VPX_RC_FIRST_PASS;
    109     InitializeEncoder();
    110 
    111     libvpx_test::I420VideoSource video(test_file_name_, kWidth, kHeight,
    112                                        codec_enc_.g_timebase.den,
    113                                        codec_enc_.g_timebase.num, 0, 30);
    114     video.Begin();
    115 
    116     for (int i = 0; i < n; ++i) {
    117       res = vpx_svc_encode(&svc_, &codec_, video.img(), video.pts(),
    118                            video.duration(), VPX_DL_GOOD_QUALITY);
    119       ASSERT_EQ(VPX_CODEC_OK, res);
    120       GetStatsData(stats_buf);
    121       video.Next();
    122     }
    123 
    124     // Flush encoder and test EOS packet.
    125     res = vpx_svc_encode(&svc_, &codec_, NULL, video.pts(),
    126                          video.duration(), VPX_DL_GOOD_QUALITY);
    127     ASSERT_EQ(VPX_CODEC_OK, res);
    128     GetStatsData(stats_buf);
    129 
    130     ReleaseEncoder();
    131   }
    132 
    133   void StoreFrames(const size_t max_frame_received,
    134                    struct vpx_fixed_buf *const outputs,
    135                    size_t *const frame_received) {
    136     vpx_codec_iter_t iter = NULL;
    137     const vpx_codec_cx_pkt_t *cx_pkt;
    138 
    139     while ((cx_pkt = vpx_codec_get_cx_data(&codec_, &iter)) != NULL) {
    140       if (cx_pkt->kind == VPX_CODEC_CX_FRAME_PKT) {
    141         const size_t frame_size = cx_pkt->data.frame.sz;
    142 
    143         EXPECT_GT(frame_size, 0U);
    144         ASSERT_TRUE(cx_pkt->data.frame.buf != NULL);
    145         ASSERT_LT(*frame_received, max_frame_received);
    146 
    147         if (*frame_received == 0)
    148           EXPECT_EQ(1, !!(cx_pkt->data.frame.flags & VPX_FRAME_IS_KEY));
    149 
    150         outputs[*frame_received].buf = malloc(frame_size + 16);
    151         ASSERT_TRUE(outputs[*frame_received].buf != NULL);
    152         memcpy(outputs[*frame_received].buf, cx_pkt->data.frame.buf,
    153                frame_size);
    154         outputs[*frame_received].sz = frame_size;
    155         ++(*frame_received);
    156       }
    157     }
    158   }
    159 
    160   void Pass2EncodeNFrames(std::string *const stats_buf,
    161                           const int n, const int layers,
    162                           struct vpx_fixed_buf *const outputs) {
    163     vpx_codec_err_t res;
    164     size_t frame_received = 0;
    165 
    166     ASSERT_TRUE(outputs != NULL);
    167     ASSERT_GT(n, 0);
    168     ASSERT_GT(layers, 0);
    169     svc_.spatial_layers = layers;
    170     codec_enc_.rc_target_bitrate = 500;
    171     if (codec_enc_.g_pass == VPX_RC_LAST_PASS) {
    172       ASSERT_TRUE(stats_buf != NULL);
    173       ASSERT_GT(stats_buf->size(), 0U);
    174       codec_enc_.rc_twopass_stats_in.buf = &(*stats_buf)[0];
    175       codec_enc_.rc_twopass_stats_in.sz = stats_buf->size();
    176     }
    177     InitializeEncoder();
    178 
    179     libvpx_test::I420VideoSource video(test_file_name_, kWidth, kHeight,
    180                                        codec_enc_.g_timebase.den,
    181                                        codec_enc_.g_timebase.num, 0, 30);
    182     video.Begin();
    183 
    184     for (int i = 0; i < n; ++i) {
    185       res = vpx_svc_encode(&svc_, &codec_, video.img(), video.pts(),
    186                            video.duration(), VPX_DL_GOOD_QUALITY);
    187       ASSERT_EQ(VPX_CODEC_OK, res);
    188       StoreFrames(n, outputs, &frame_received);
    189       video.Next();
    190     }
    191 
    192     // Flush encoder.
    193     res = vpx_svc_encode(&svc_, &codec_, NULL, 0,
    194                          video.duration(), VPX_DL_GOOD_QUALITY);
    195     EXPECT_EQ(VPX_CODEC_OK, res);
    196     StoreFrames(n, outputs, &frame_received);
    197 
    198     EXPECT_EQ(frame_received, static_cast<size_t>(n));
    199 
    200     ReleaseEncoder();
    201   }
    202 
    203   void DecodeNFrames(const struct vpx_fixed_buf *const inputs, const int n) {
    204     int decoded_frames = 0;
    205     int received_frames = 0;
    206 
    207     ASSERT_TRUE(inputs != NULL);
    208     ASSERT_GT(n, 0);
    209 
    210     for (int i = 0; i < n; ++i) {
    211       ASSERT_TRUE(inputs[i].buf != NULL);
    212       ASSERT_GT(inputs[i].sz, 0U);
    213       const vpx_codec_err_t res_dec =
    214           decoder_->DecodeFrame(static_cast<const uint8_t *>(inputs[i].buf),
    215                                 inputs[i].sz);
    216       ASSERT_EQ(VPX_CODEC_OK, res_dec) << decoder_->DecodeError();
    217       ++decoded_frames;
    218 
    219       DxDataIterator dec_iter = decoder_->GetDxData();
    220       while (dec_iter.Next() != NULL) {
    221         ++received_frames;
    222       }
    223     }
    224     EXPECT_EQ(decoded_frames, n);
    225     EXPECT_EQ(received_frames, n);
    226   }
    227 
    228   void DropLayersAndMakeItVP9Comaptible(struct vpx_fixed_buf *const inputs,
    229                                         const int num_super_frames,
    230                                         const int remained_spatial_layers,
    231                                         const bool is_multiple_frame_contexts) {
    232     ASSERT_TRUE(inputs != NULL);
    233     ASSERT_GT(num_super_frames, 0);
    234     ASSERT_GT(remained_spatial_layers, 0);
    235 
    236     for (int i = 0; i < num_super_frames; ++i) {
    237       uint32_t frame_sizes[8] = {0};
    238       int frame_count = 0;
    239       int frames_found = 0;
    240       int frame;
    241       ASSERT_TRUE(inputs[i].buf != NULL);
    242       ASSERT_GT(inputs[i].sz, 0U);
    243 
    244       vpx_codec_err_t res =
    245           vp9_parse_superframe_index(static_cast<const uint8_t*>(inputs[i].buf),
    246                                      inputs[i].sz, frame_sizes, &frame_count,
    247                                      NULL, NULL);
    248       ASSERT_EQ(VPX_CODEC_OK, res);
    249 
    250       if (frame_count == 0) {
    251         // There's no super frame but only a single frame.
    252         ASSERT_EQ(1, remained_spatial_layers);
    253         if (is_multiple_frame_contexts) {
    254           // Make a new super frame.
    255           uint8_t marker = 0xc1;
    256           unsigned int mask;
    257           int mag;
    258 
    259           // Choose the magnitude.
    260           for (mag = 0, mask = 0xff; mag < 4; ++mag) {
    261             if (inputs[i].sz < mask)
    262               break;
    263             mask <<= 8;
    264             mask |= 0xff;
    265           }
    266           marker |= mag << 3;
    267           int index_sz = 2 + (mag + 1) * 2;
    268 
    269           inputs[i].buf = realloc(inputs[i].buf, inputs[i].sz + index_sz + 16);
    270           ASSERT_TRUE(inputs[i].buf != NULL);
    271           uint8_t *frame_data = static_cast<uint8_t*>(inputs[i].buf);
    272           frame_data[0] &= ~2;      // Set the show_frame flag to 0.
    273           frame_data += inputs[i].sz;
    274           // Add an one byte frame with show_existing_frame.
    275           *frame_data++ = 0x88;
    276 
    277           // Write the super frame index.
    278           *frame_data++ = marker;
    279 
    280           frame_sizes[0] = inputs[i].sz;
    281           frame_sizes[1] = 1;
    282           for (int j = 0; j < 2; ++j) {
    283             unsigned int this_sz = frame_sizes[j];
    284             for (int k = 0; k <= mag; k++) {
    285               *frame_data++ = this_sz & 0xff;
    286               this_sz >>= 8;
    287             }
    288           }
    289           *frame_data++ = marker;
    290           inputs[i].sz += index_sz + 1;
    291         }
    292       } else {
    293         // Found a super frame.
    294         uint8_t *frame_data = static_cast<uint8_t*>(inputs[i].buf);
    295         uint8_t *frame_start = frame_data;
    296         for (frame = 0; frame < frame_count; ++frame) {
    297           // Looking for a visible frame.
    298           if (frame_data[0] & 0x02) {
    299             ++frames_found;
    300             if (frames_found == remained_spatial_layers)
    301               break;
    302           }
    303           frame_data += frame_sizes[frame];
    304         }
    305         ASSERT_LT(frame, frame_count) << "Couldn't find a visible frame. "
    306             << "remained_spatial_layers: " << remained_spatial_layers
    307             << "    super_frame: " << i
    308             << "    is_multiple_frame_context: " << is_multiple_frame_contexts;
    309         if (frame == frame_count - 1 && !is_multiple_frame_contexts)
    310           continue;
    311 
    312         frame_data += frame_sizes[frame];
    313 
    314         // We need to add one more frame for multiple frame contexts.
    315         if (is_multiple_frame_contexts)
    316           ++frame;
    317         uint8_t marker =
    318             static_cast<const uint8_t*>(inputs[i].buf)[inputs[i].sz - 1];
    319         const uint32_t mag = ((marker >> 3) & 0x3) + 1;
    320         const size_t index_sz = 2 + mag * frame_count;
    321         const size_t new_index_sz = 2 + mag * (frame + 1);
    322         marker &= 0x0f8;
    323         marker |= frame;
    324 
    325         // Copy existing frame sizes.
    326         memmove(frame_data + (is_multiple_frame_contexts ? 2 : 1),
    327                 frame_start + inputs[i].sz - index_sz + 1, new_index_sz - 2);
    328         if (is_multiple_frame_contexts) {
    329           // Add a one byte frame with flag show_existing_frame.
    330           *frame_data++ = 0x88 | (remained_spatial_layers - 1);
    331         }
    332         // New marker.
    333         frame_data[0] = marker;
    334         frame_data += (mag * (frame + 1) + 1);
    335 
    336         if (is_multiple_frame_contexts) {
    337           // Write the frame size for the one byte frame.
    338           frame_data -= mag;
    339           *frame_data++ = 1;
    340           for (uint32_t j = 1; j < mag; ++j) {
    341             *frame_data++ = 0;
    342           }
    343         }
    344 
    345         *frame_data++ = marker;
    346         inputs[i].sz = frame_data - frame_start;
    347 
    348         if (is_multiple_frame_contexts) {
    349           // Change the show frame flag to 0 for all frames.
    350           for (int j = 0; j < frame; ++j) {
    351             frame_start[0] &= ~2;
    352             frame_start += frame_sizes[j];
    353           }
    354         }
    355       }
    356     }
    357   }
    358 
    359   void FreeBitstreamBuffers(struct vpx_fixed_buf *const inputs, const int n) {
    360     ASSERT_TRUE(inputs != NULL);
    361     ASSERT_GT(n, 0);
    362 
    363     for (int i = 0; i < n; ++i) {
    364       free(inputs[i].buf);
    365       inputs[i].buf = NULL;
    366       inputs[i].sz = 0;
    367     }
    368   }
    369 
    370   SvcContext svc_;
    371   vpx_codec_ctx_t codec_;
    372   struct vpx_codec_enc_cfg codec_enc_;
    373   vpx_codec_iface_t *codec_iface_;
    374   std::string test_file_name_;
    375   bool codec_initialized_;
    376   Decoder *decoder_;
    377 };
    378 
    379 TEST_F(SvcTest, SvcInit) {
    380   // test missing parameters
    381   vpx_codec_err_t res = vpx_svc_init(NULL, &codec_, codec_iface_, &codec_enc_);
    382   EXPECT_EQ(VPX_CODEC_INVALID_PARAM, res);
    383   res = vpx_svc_init(&svc_, NULL, codec_iface_, &codec_enc_);
    384   EXPECT_EQ(VPX_CODEC_INVALID_PARAM, res);
    385   res = vpx_svc_init(&svc_, &codec_, NULL, &codec_enc_);
    386   EXPECT_EQ(VPX_CODEC_INVALID_PARAM, res);
    387 
    388   res = vpx_svc_init(&svc_, &codec_, codec_iface_, NULL);
    389   EXPECT_EQ(VPX_CODEC_INVALID_PARAM, res);
    390 
    391   svc_.spatial_layers = 6;  // too many layers
    392   res = vpx_svc_init(&svc_, &codec_, codec_iface_, &codec_enc_);
    393   EXPECT_EQ(VPX_CODEC_INVALID_PARAM, res);
    394 
    395   svc_.spatial_layers = 0;  // use default layers
    396   InitializeEncoder();
    397   EXPECT_EQ(VPX_SS_DEFAULT_LAYERS, svc_.spatial_layers);
    398 }
    399 
    400 TEST_F(SvcTest, InitTwoLayers) {
    401   svc_.spatial_layers = 2;
    402   InitializeEncoder();
    403 }
    404 
    405 TEST_F(SvcTest, InvalidOptions) {
    406   vpx_codec_err_t res = vpx_svc_set_options(&svc_, NULL);
    407   EXPECT_EQ(VPX_CODEC_INVALID_PARAM, res);
    408 
    409   res = vpx_svc_set_options(&svc_, "not-an-option=1");
    410   EXPECT_EQ(VPX_CODEC_OK, res);
    411   res = vpx_svc_init(&svc_, &codec_, vpx_codec_vp9_cx(), &codec_enc_);
    412   EXPECT_EQ(VPX_CODEC_INVALID_PARAM, res);
    413 }
    414 
    415 TEST_F(SvcTest, SetLayersOption) {
    416   vpx_codec_err_t res = vpx_svc_set_options(&svc_, "spatial-layers=3");
    417   EXPECT_EQ(VPX_CODEC_OK, res);
    418   InitializeEncoder();
    419   EXPECT_EQ(3, svc_.spatial_layers);
    420 }
    421 
    422 TEST_F(SvcTest, SetMultipleOptions) {
    423   vpx_codec_err_t res =
    424       vpx_svc_set_options(&svc_, "spatial-layers=2 scale-factors=1/3,2/3");
    425   EXPECT_EQ(VPX_CODEC_OK, res);
    426   InitializeEncoder();
    427   EXPECT_EQ(2, svc_.spatial_layers);
    428 }
    429 
    430 TEST_F(SvcTest, SetScaleFactorsOption) {
    431   svc_.spatial_layers = 2;
    432   vpx_codec_err_t res =
    433       vpx_svc_set_options(&svc_, "scale-factors=not-scale-factors");
    434   EXPECT_EQ(VPX_CODEC_OK, res);
    435   res = vpx_svc_init(&svc_, &codec_, vpx_codec_vp9_cx(), &codec_enc_);
    436   EXPECT_EQ(VPX_CODEC_INVALID_PARAM, res);
    437 
    438   res = vpx_svc_set_options(&svc_, "scale-factors=1/3, 3*3");
    439   EXPECT_EQ(VPX_CODEC_OK, res);
    440   res = vpx_svc_init(&svc_, &codec_, vpx_codec_vp9_cx(), &codec_enc_);
    441   EXPECT_EQ(VPX_CODEC_INVALID_PARAM, res);
    442 
    443   res = vpx_svc_set_options(&svc_, "scale-factors=1/3");
    444   EXPECT_EQ(VPX_CODEC_OK, res);
    445   res = vpx_svc_init(&svc_, &codec_, vpx_codec_vp9_cx(), &codec_enc_);
    446   EXPECT_EQ(VPX_CODEC_INVALID_PARAM, res);
    447 
    448   res = vpx_svc_set_options(&svc_, "scale-factors=1/3,2/3");
    449   EXPECT_EQ(VPX_CODEC_OK, res);
    450   InitializeEncoder();
    451 }
    452 
    453 TEST_F(SvcTest, SetQuantizersOption) {
    454   svc_.spatial_layers = 2;
    455   vpx_codec_err_t res = vpx_svc_set_options(&svc_, "max-quantizers=nothing");
    456   EXPECT_EQ(VPX_CODEC_OK, res);
    457   res = vpx_svc_init(&svc_, &codec_, vpx_codec_vp9_cx(), &codec_enc_);
    458   EXPECT_EQ(VPX_CODEC_INVALID_PARAM, res);
    459 
    460   res = vpx_svc_set_options(&svc_, "min-quantizers=nothing");
    461   EXPECT_EQ(VPX_CODEC_OK, res);
    462   res = vpx_svc_init(&svc_, &codec_, vpx_codec_vp9_cx(), &codec_enc_);
    463   EXPECT_EQ(VPX_CODEC_INVALID_PARAM, res);
    464 
    465   res = vpx_svc_set_options(&svc_, "max-quantizers=40");
    466   EXPECT_EQ(VPX_CODEC_OK, res);
    467   res = vpx_svc_init(&svc_, &codec_, vpx_codec_vp9_cx(), &codec_enc_);
    468   EXPECT_EQ(VPX_CODEC_INVALID_PARAM, res);
    469 
    470   res = vpx_svc_set_options(&svc_, "min-quantizers=40");
    471   EXPECT_EQ(VPX_CODEC_OK, res);
    472   res = vpx_svc_init(&svc_, &codec_, vpx_codec_vp9_cx(), &codec_enc_);
    473   EXPECT_EQ(VPX_CODEC_INVALID_PARAM, res);
    474 
    475   res = vpx_svc_set_options(&svc_, "max-quantizers=30,30 min-quantizers=40,40");
    476   EXPECT_EQ(VPX_CODEC_OK, res);
    477   res = vpx_svc_init(&svc_, &codec_, vpx_codec_vp9_cx(), &codec_enc_);
    478   EXPECT_EQ(VPX_CODEC_INVALID_PARAM, res);
    479 
    480   res = vpx_svc_set_options(&svc_, "max-quantizers=40,40 min-quantizers=30,30");
    481   InitializeEncoder();
    482 }
    483 
    484 TEST_F(SvcTest, SetAutoAltRefOption) {
    485   svc_.spatial_layers = 5;
    486   vpx_codec_err_t res = vpx_svc_set_options(&svc_, "auto-alt-refs=none");
    487   EXPECT_EQ(VPX_CODEC_OK, res);
    488   res = vpx_svc_init(&svc_, &codec_, vpx_codec_vp9_cx(), &codec_enc_);
    489   EXPECT_EQ(VPX_CODEC_INVALID_PARAM, res);
    490 
    491   res = vpx_svc_set_options(&svc_, "auto-alt-refs=1,1,1,1,0");
    492   EXPECT_EQ(VPX_CODEC_OK, res);
    493   res = vpx_svc_init(&svc_, &codec_, vpx_codec_vp9_cx(), &codec_enc_);
    494   EXPECT_EQ(VPX_CODEC_INVALID_PARAM, res);
    495 
    496   vpx_svc_set_options(&svc_, "auto-alt-refs=0,1,1,1,0");
    497   InitializeEncoder();
    498 }
    499 
    500 // Test that decoder can handle an SVC frame as the first frame in a sequence.
    501 TEST_F(SvcTest, OnePassEncodeOneFrame) {
    502   codec_enc_.g_pass = VPX_RC_ONE_PASS;
    503   vpx_fixed_buf output = {0};
    504   Pass2EncodeNFrames(NULL, 1, 2, &output);
    505   DecodeNFrames(&output, 1);
    506   FreeBitstreamBuffers(&output, 1);
    507 }
    508 
    509 TEST_F(SvcTest, OnePassEncodeThreeFrames) {
    510   codec_enc_.g_pass = VPX_RC_ONE_PASS;
    511   vpx_fixed_buf outputs[3];
    512   memset(&outputs[0], 0, sizeof(outputs));
    513   Pass2EncodeNFrames(NULL, 3, 2, &outputs[0]);
    514   DecodeNFrames(&outputs[0], 3);
    515   FreeBitstreamBuffers(&outputs[0], 3);
    516 }
    517 
    518 TEST_F(SvcTest, TwoPassEncode10Frames) {
    519   // First pass encode
    520   std::string stats_buf;
    521   Pass1EncodeNFrames(10, 2, &stats_buf);
    522 
    523   // Second pass encode
    524   codec_enc_.g_pass = VPX_RC_LAST_PASS;
    525   vpx_fixed_buf outputs[10];
    526   memset(&outputs[0], 0, sizeof(outputs));
    527   Pass2EncodeNFrames(&stats_buf, 10, 2, &outputs[0]);
    528   DecodeNFrames(&outputs[0], 10);
    529   FreeBitstreamBuffers(&outputs[0], 10);
    530 }
    531 
    532 TEST_F(SvcTest, TwoPassEncode20FramesWithAltRef) {
    533   // First pass encode
    534   std::string stats_buf;
    535   Pass1EncodeNFrames(20, 2, &stats_buf);
    536 
    537   // Second pass encode
    538   codec_enc_.g_pass = VPX_RC_LAST_PASS;
    539   vpx_svc_set_options(&svc_, "auto-alt-refs=1,1");
    540   vpx_fixed_buf outputs[20];
    541   memset(&outputs[0], 0, sizeof(outputs));
    542   Pass2EncodeNFrames(&stats_buf, 20, 2, &outputs[0]);
    543   DecodeNFrames(&outputs[0], 20);
    544   FreeBitstreamBuffers(&outputs[0], 20);
    545 }
    546 
    547 TEST_F(SvcTest, TwoPassEncode2SpatialLayersDecodeBaseLayerOnly) {
    548   // First pass encode
    549   std::string stats_buf;
    550   Pass1EncodeNFrames(10, 2, &stats_buf);
    551 
    552   // Second pass encode
    553   codec_enc_.g_pass = VPX_RC_LAST_PASS;
    554   vpx_svc_set_options(&svc_, "auto-alt-refs=1,1");
    555   vpx_fixed_buf outputs[10];
    556   memset(&outputs[0], 0, sizeof(outputs));
    557   Pass2EncodeNFrames(&stats_buf, 10, 2, &outputs[0]);
    558   DropLayersAndMakeItVP9Comaptible(&outputs[0], 10, 1, false);
    559   DecodeNFrames(&outputs[0], 10);
    560   FreeBitstreamBuffers(&outputs[0], 10);
    561 }
    562 
    563 TEST_F(SvcTest, TwoPassEncode5SpatialLayersDecode54321Layers) {
    564   // First pass encode
    565   std::string stats_buf;
    566   Pass1EncodeNFrames(10, 5, &stats_buf);
    567 
    568   // Second pass encode
    569   codec_enc_.g_pass = VPX_RC_LAST_PASS;
    570   vpx_svc_set_options(&svc_, "auto-alt-refs=0,1,1,1,0");
    571   vpx_fixed_buf outputs[10];
    572   memset(&outputs[0], 0, sizeof(outputs));
    573   Pass2EncodeNFrames(&stats_buf, 10, 5, &outputs[0]);
    574 
    575   DecodeNFrames(&outputs[0], 10);
    576   DropLayersAndMakeItVP9Comaptible(&outputs[0], 10, 4, false);
    577   DecodeNFrames(&outputs[0], 10);
    578   DropLayersAndMakeItVP9Comaptible(&outputs[0], 10, 3, false);
    579   DecodeNFrames(&outputs[0], 10);
    580   DropLayersAndMakeItVP9Comaptible(&outputs[0], 10, 2, false);
    581   DecodeNFrames(&outputs[0], 10);
    582   DropLayersAndMakeItVP9Comaptible(&outputs[0], 10, 1, false);
    583   DecodeNFrames(&outputs[0], 10);
    584 
    585   FreeBitstreamBuffers(&outputs[0], 10);
    586 }
    587 
    588 TEST_F(SvcTest, TwoPassEncode2SNRLayers) {
    589   // First pass encode
    590   std::string stats_buf;
    591   vpx_svc_set_options(&svc_, "scale-factors=1/1,1/1");
    592   Pass1EncodeNFrames(20, 2, &stats_buf);
    593 
    594   // Second pass encode
    595   codec_enc_.g_pass = VPX_RC_LAST_PASS;
    596   vpx_svc_set_options(&svc_,
    597                       "auto-alt-refs=1,1 scale-factors=1/1,1/1");
    598   vpx_fixed_buf outputs[20];
    599   memset(&outputs[0], 0, sizeof(outputs));
    600   Pass2EncodeNFrames(&stats_buf, 20, 2, &outputs[0]);
    601   DecodeNFrames(&outputs[0], 20);
    602   FreeBitstreamBuffers(&outputs[0], 20);
    603 }
    604 
    605 TEST_F(SvcTest, TwoPassEncode3SNRLayersDecode321Layers) {
    606   // First pass encode
    607   std::string stats_buf;
    608   vpx_svc_set_options(&svc_, "scale-factors=1/1,1/1,1/1");
    609   Pass1EncodeNFrames(20, 3, &stats_buf);
    610 
    611   // Second pass encode
    612   codec_enc_.g_pass = VPX_RC_LAST_PASS;
    613   vpx_svc_set_options(&svc_,
    614                       "auto-alt-refs=1,1,1 scale-factors=1/1,1/1,1/1");
    615   vpx_fixed_buf outputs[20];
    616   memset(&outputs[0], 0, sizeof(outputs));
    617   Pass2EncodeNFrames(&stats_buf, 20, 3, &outputs[0]);
    618   DecodeNFrames(&outputs[0], 20);
    619   DropLayersAndMakeItVP9Comaptible(&outputs[0], 20, 2, false);
    620   DecodeNFrames(&outputs[0], 20);
    621   DropLayersAndMakeItVP9Comaptible(&outputs[0], 20, 1, false);
    622   DecodeNFrames(&outputs[0], 20);
    623 
    624   FreeBitstreamBuffers(&outputs[0], 20);
    625 }
    626 
    627 TEST_F(SvcTest, SetMultipleFrameContextsOption) {
    628   svc_.spatial_layers = 5;
    629   vpx_codec_err_t res =
    630       vpx_svc_set_options(&svc_, "multi-frame-contexts=1");
    631   EXPECT_EQ(VPX_CODEC_OK, res);
    632   res = vpx_svc_init(&svc_, &codec_, vpx_codec_vp9_cx(), &codec_enc_);
    633   EXPECT_EQ(VPX_CODEC_INVALID_PARAM, res);
    634 
    635   svc_.spatial_layers = 2;
    636   res = vpx_svc_set_options(&svc_, "multi-frame-contexts=1");
    637   InitializeEncoder();
    638 }
    639 
    640 TEST_F(SvcTest, TwoPassEncode2SpatialLayersWithMultipleFrameContexts) {
    641   // First pass encode
    642   std::string stats_buf;
    643   Pass1EncodeNFrames(10, 2, &stats_buf);
    644 
    645   // Second pass encode
    646   codec_enc_.g_pass = VPX_RC_LAST_PASS;
    647   codec_enc_.g_error_resilient = 0;
    648   vpx_svc_set_options(&svc_, "auto-alt-refs=1,1 multi-frame-contexts=1");
    649   vpx_fixed_buf outputs[10];
    650   memset(&outputs[0], 0, sizeof(outputs));
    651   Pass2EncodeNFrames(&stats_buf, 10, 2, &outputs[0]);
    652   DropLayersAndMakeItVP9Comaptible(&outputs[0], 10, 2, true);
    653   DecodeNFrames(&outputs[0], 10);
    654   FreeBitstreamBuffers(&outputs[0], 10);
    655 }
    656 
    657 TEST_F(SvcTest,
    658        TwoPassEncode2SpatialLayersWithMultipleFrameContextsDecodeBaselayer) {
    659   // First pass encode
    660   std::string stats_buf;
    661   Pass1EncodeNFrames(10, 2, &stats_buf);
    662 
    663   // Second pass encode
    664   codec_enc_.g_pass = VPX_RC_LAST_PASS;
    665   codec_enc_.g_error_resilient = 0;
    666   vpx_svc_set_options(&svc_, "auto-alt-refs=1,1 multi-frame-contexts=1");
    667   vpx_fixed_buf outputs[10];
    668   memset(&outputs[0], 0, sizeof(outputs));
    669   Pass2EncodeNFrames(&stats_buf, 10, 2, &outputs[0]);
    670   DropLayersAndMakeItVP9Comaptible(&outputs[0], 10, 1, true);
    671   DecodeNFrames(&outputs[0], 10);
    672   FreeBitstreamBuffers(&outputs[0], 10);
    673 }
    674 
    675 TEST_F(SvcTest, TwoPassEncode2SNRLayersWithMultipleFrameContexts) {
    676   // First pass encode
    677   std::string stats_buf;
    678   vpx_svc_set_options(&svc_, "scale-factors=1/1,1/1");
    679   Pass1EncodeNFrames(10, 2, &stats_buf);
    680 
    681   // Second pass encode
    682   codec_enc_.g_pass = VPX_RC_LAST_PASS;
    683   codec_enc_.g_error_resilient = 0;
    684   vpx_svc_set_options(&svc_, "auto-alt-refs=1,1 scale-factors=1/1,1/1 "
    685                       "multi-frame-contexts=1");
    686   vpx_fixed_buf outputs[10];
    687   memset(&outputs[0], 0, sizeof(outputs));
    688   Pass2EncodeNFrames(&stats_buf, 10, 2, &outputs[0]);
    689   DropLayersAndMakeItVP9Comaptible(&outputs[0], 10, 2, true);
    690   DecodeNFrames(&outputs[0], 10);
    691   FreeBitstreamBuffers(&outputs[0], 10);
    692 }
    693 
    694 TEST_F(SvcTest,
    695        TwoPassEncode3SNRLayersWithMultipleFrameContextsDecode321Layer) {
    696   // First pass encode
    697   std::string stats_buf;
    698   vpx_svc_set_options(&svc_, "scale-factors=1/1,1/1,1/1");
    699   Pass1EncodeNFrames(10, 3, &stats_buf);
    700 
    701   // Second pass encode
    702   codec_enc_.g_pass = VPX_RC_LAST_PASS;
    703   codec_enc_.g_error_resilient = 0;
    704   vpx_svc_set_options(&svc_, "auto-alt-refs=1,1,1 scale-factors=1/1,1/1,1/1 "
    705                       "multi-frame-contexts=1");
    706   vpx_fixed_buf outputs[10];
    707   memset(&outputs[0], 0, sizeof(outputs));
    708   Pass2EncodeNFrames(&stats_buf, 10, 3, &outputs[0]);
    709 
    710   vpx_fixed_buf outputs_new[10];
    711   for (int i = 0; i < 10; ++i) {
    712     outputs_new[i].buf = malloc(outputs[i].sz + 16);
    713     ASSERT_TRUE(outputs_new[i].buf != NULL);
    714     memcpy(outputs_new[i].buf, outputs[i].buf, outputs[i].sz);
    715     outputs_new[i].sz = outputs[i].sz;
    716   }
    717   DropLayersAndMakeItVP9Comaptible(&outputs_new[0], 10, 3, true);
    718   DecodeNFrames(&outputs_new[0], 10);
    719 
    720   for (int i = 0; i < 10; ++i) {
    721     memcpy(outputs_new[i].buf, outputs[i].buf, outputs[i].sz);
    722     outputs_new[i].sz = outputs[i].sz;
    723   }
    724   DropLayersAndMakeItVP9Comaptible(&outputs_new[0], 10, 2, true);
    725   DecodeNFrames(&outputs_new[0], 10);
    726 
    727   for (int i = 0; i < 10; ++i) {
    728     memcpy(outputs_new[i].buf, outputs[i].buf, outputs[i].sz);
    729     outputs_new[i].sz = outputs[i].sz;
    730   }
    731   DropLayersAndMakeItVP9Comaptible(&outputs_new[0], 10, 1, true);
    732   DecodeNFrames(&outputs_new[0], 10);
    733 
    734   FreeBitstreamBuffers(&outputs[0], 10);
    735   FreeBitstreamBuffers(&outputs_new[0], 10);
    736 }
    737 
    738 TEST_F(SvcTest, TwoPassEncode2TemporalLayers) {
    739   // First pass encode
    740   std::string stats_buf;
    741   vpx_svc_set_options(&svc_, "scale-factors=1/1");
    742   svc_.temporal_layers = 2;
    743   Pass1EncodeNFrames(10, 1, &stats_buf);
    744 
    745   // Second pass encode
    746   codec_enc_.g_pass = VPX_RC_LAST_PASS;
    747   svc_.temporal_layers = 2;
    748   vpx_svc_set_options(&svc_, "auto-alt-refs=1 scale-factors=1/1");
    749   vpx_fixed_buf outputs[10];
    750   memset(&outputs[0], 0, sizeof(outputs));
    751   Pass2EncodeNFrames(&stats_buf, 10, 1, &outputs[0]);
    752   DecodeNFrames(&outputs[0], 10);
    753   FreeBitstreamBuffers(&outputs[0], 10);
    754 }
    755 
    756 TEST_F(SvcTest, TwoPassEncode2TemporalLayersWithMultipleFrameContexts) {
    757   // First pass encode
    758   std::string stats_buf;
    759   vpx_svc_set_options(&svc_, "scale-factors=1/1");
    760   svc_.temporal_layers = 2;
    761   Pass1EncodeNFrames(10, 1, &stats_buf);
    762 
    763   // Second pass encode
    764   codec_enc_.g_pass = VPX_RC_LAST_PASS;
    765   svc_.temporal_layers = 2;
    766   codec_enc_.g_error_resilient = 0;
    767   vpx_svc_set_options(&svc_, "auto-alt-refs=1 scale-factors=1/1 "
    768                       "multi-frame-contexts=1");
    769   vpx_fixed_buf outputs[10];
    770   memset(&outputs[0], 0, sizeof(outputs));
    771   Pass2EncodeNFrames(&stats_buf, 10, 1, &outputs[0]);
    772   DropLayersAndMakeItVP9Comaptible(&outputs[0], 10, 1, true);
    773   DecodeNFrames(&outputs[0], 10);
    774   FreeBitstreamBuffers(&outputs[0], 10);
    775 }
    776 
    777 TEST_F(SvcTest, TwoPassEncode2TemporalLayersDecodeBaseLayer) {
    778   // First pass encode
    779   std::string stats_buf;
    780   vpx_svc_set_options(&svc_, "scale-factors=1/1");
    781   svc_.temporal_layers = 2;
    782   Pass1EncodeNFrames(10, 1, &stats_buf);
    783 
    784   // Second pass encode
    785   codec_enc_.g_pass = VPX_RC_LAST_PASS;
    786   svc_.temporal_layers = 2;
    787   vpx_svc_set_options(&svc_, "auto-alt-refs=1 scale-factors=1/1");
    788   vpx_fixed_buf outputs[10];
    789   memset(&outputs[0], 0, sizeof(outputs));
    790   Pass2EncodeNFrames(&stats_buf, 10, 1, &outputs[0]);
    791 
    792   vpx_fixed_buf base_layer[5];
    793   for (int i = 0; i < 5; ++i)
    794     base_layer[i] = outputs[i * 2];
    795 
    796   DecodeNFrames(&base_layer[0], 5);
    797   FreeBitstreamBuffers(&outputs[0], 10);
    798 }
    799 
    800 TEST_F(SvcTest,
    801        TwoPassEncode2TemporalLayersWithMultipleFrameContextsDecodeBaseLayer) {
    802   // First pass encode
    803   std::string stats_buf;
    804   vpx_svc_set_options(&svc_, "scale-factors=1/1");
    805   svc_.temporal_layers = 2;
    806   Pass1EncodeNFrames(10, 1, &stats_buf);
    807 
    808   // Second pass encode
    809   codec_enc_.g_pass = VPX_RC_LAST_PASS;
    810   svc_.temporal_layers = 2;
    811   codec_enc_.g_error_resilient = 0;
    812   vpx_svc_set_options(&svc_, "auto-alt-refs=1 scale-factors=1/1 "
    813                       "multi-frame-contexts=1");
    814   vpx_fixed_buf outputs[10];
    815   memset(&outputs[0], 0, sizeof(outputs));
    816   Pass2EncodeNFrames(&stats_buf, 10, 1, &outputs[0]);
    817   DropLayersAndMakeItVP9Comaptible(&outputs[0], 10, 1, true);
    818 
    819   vpx_fixed_buf base_layer[5];
    820   for (int i = 0; i < 5; ++i)
    821     base_layer[i] = outputs[i * 2];
    822 
    823   DecodeNFrames(&base_layer[0], 5);
    824   FreeBitstreamBuffers(&outputs[0], 10);
    825 }
    826 
    827 }  // namespace
    828