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Merge "Datarate test for temporal layers and frame dropper."

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This commit is contained in:
Marco Paniconi 2014-02-13 11:58:40 -08:00 committed by Gerrit Code Review
commit ea31368dab
1 changed files with 64 additions and 17 deletions
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81
test/datarate_test.cc
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@ -198,6 +198,7 @@ class DatarateTestVP9 : public ::libvpx_test::EncoderTest,
last_pts_ = 0;
bits_in_buffer_model_ = cfg_.rc_target_bitrate * cfg_.rc_buf_initial_sz;
frame_number_ = 0;
tot_frame_number_ = 0;
first_drop_ = 0;
num_drops_ = 0;
// For testing up to 3 layers.
@ -294,11 +295,22 @@ class DatarateTestVP9 : public ::libvpx_test::EncoderTest,
virtual void FramePktHook(const vpx_codec_cx_pkt_t *pkt) {
int layer = SetLayerId(frame_number_, cfg_.ts_number_layers);
// Time since last timestamp = duration.
vpx_codec_pts_t duration = pkt->data.frame.pts - last_pts_;
if (duration > 1) {
// If first drop not set and we have a drop set it to this time.
if (!first_drop_)
first_drop_ = last_pts_ + 1;
// Update the number of frame drops.
num_drops_ += static_cast<int>(duration - 1);
// Update counter for total number of frames (#frames input to encoder).
// Needed for setting the proper layer_id below.
tot_frame_number_ += static_cast<int>(duration - 1);
}
int layer = SetLayerId(tot_frame_number_, cfg_.ts_number_layers);
// Add to the buffer the bits we'd expect from a constant bitrate server.
bits_in_buffer_model_ += static_cast<int64_t>(
duration * timebase_ * cfg_.rc_target_bitrate * 1000);
@ -315,18 +327,10 @@ class DatarateTestVP9 : public ::libvpx_test::EncoderTest,
bits_total_[i] += frame_size_in_bits;
}
// If first drop not set and we have a drop set it to this time.
if (!first_drop_ && duration > 1)
first_drop_ = last_pts_ + 1;
// Update the number of frame drops.
if (duration > 1) {
num_drops_ += static_cast<int>(duration - 1);
}
// Update the most recent pts.
last_pts_ = pkt->data.frame.pts;
++frame_number_;
++tot_frame_number_;
}
virtual void EndPassHook(void) {
@ -342,7 +346,8 @@ class DatarateTestVP9 : public ::libvpx_test::EncoderTest,
vpx_codec_pts_t last_pts_;
double timebase_;
int frame_number_;
int frame_number_; // Counter for number of non-dropped/encoded frames.
int tot_frame_number_; // Counter for total number of input frames.
int64_t bits_total_[3];
double duration_;
double effective_datarate_[3];
@ -493,10 +498,7 @@ TEST_P(DatarateTestVP9, BasicRateTargeting3TemporalLayers) {
cfg_.rc_buf_initial_sz = 500;
cfg_.rc_buf_optimal_sz = 500;
cfg_.rc_buf_sz = 1000;
// TODO(marpan): For now keep frame dropper off. Need to investigate an
// issue (rate-mismatch) that occcurs at speed 3 and low bitrate (200k) when
// frame dropper is on.
cfg_.rc_dropframe_thresh = 0;
cfg_.rc_dropframe_thresh = 1;
cfg_.rc_min_quantizer = 0;
cfg_.rc_max_quantizer = 63;
cfg_.rc_end_usage = VPX_CBR;
@ -529,8 +531,53 @@ TEST_P(DatarateTestVP9, BasicRateTargeting3TemporalLayers) {
}
}
}
// Check basic rate targeting for 3 temporal layers, with frame dropping.
// Only for one (low) bitrate with lower max_quantizer, and somewhat higher
// frame drop threshold, to force frame dropping.
TEST_P(DatarateTestVP9, BasicRateTargeting3TemporalLayersFrameDropping) {
cfg_.rc_buf_initial_sz = 500;
cfg_.rc_buf_optimal_sz = 500;
cfg_.rc_buf_sz = 1000;
// Set frame drop threshold and rc_max_quantizer to force some frame drops.
cfg_.rc_dropframe_thresh = 20;
cfg_.rc_max_quantizer = 45;
cfg_.rc_min_quantizer = 0;
cfg_.rc_end_usage = VPX_CBR;
cfg_.g_lag_in_frames = 0;
// 3 Temporal layers, no spatial layers: Framerate decimation (4, 2, 1).
cfg_.ss_number_layers = 1;
cfg_.ts_number_layers = 3;
cfg_.ts_rate_decimator[0] = 4;
cfg_.ts_rate_decimator[1] = 2;
cfg_.ts_rate_decimator[2] = 1;
::libvpx_test::I420VideoSource video("hantro_collage_w352h288.yuv", 352, 288,
30, 1, 0, 200);
cfg_.rc_target_bitrate = 200;
ResetModel();
// 40-20-40 bitrate allocation for 3 temporal layers.
cfg_.ts_target_bitrate[0] = 40 * cfg_.rc_target_bitrate / 100;
cfg_.ts_target_bitrate[1] = 60 * cfg_.rc_target_bitrate / 100;
cfg_.ts_target_bitrate[2] = cfg_.rc_target_bitrate;
ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
for (int j = 0; j < static_cast<int>(cfg_.ts_number_layers); ++j) {
ASSERT_GE(effective_datarate_[j], cfg_.ts_target_bitrate[j] * 0.85)
<< " The datarate for the file is lower than target by too much, "
"for layer: " << j;
ASSERT_LE(effective_datarate_[j], cfg_.ts_target_bitrate[j] * 1.15)
<< " The datarate for the file is greater than target by too much, "
"for layer: " << j;
// Expect some frame drops in this test: for this 200 frames test,
// expect at least 10% and not more than 50% drops.
ASSERT_GE(num_drops_, 20);
ASSERT_LE(num_drops_, 100);
}
}
VP8_INSTANTIATE_TEST_CASE(DatarateTest, ALL_TEST_MODES);
VP9_INSTANTIATE_TEST_CASE(DatarateTestVP9,
::testing::Values(::libvpx_test::kOnePassGood),
::testing::Range(1, 5));
::testing::Range(2, 5));
} // namespace