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NetEq: Change NetEq's ramp-up behavior after expansions

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NetEq tapers down the audio produced through loss concealment when the
expansion has been going on for some time. When the audio packets starts
coming in again, there is a ramp-up that happens. This ramp-up could
before this change extend over more than one 10 ms block, which made
keeping track of the scaling factor necessary. With this change, we make
this ramp-up quicker in the rare cases when it lasted more than 10 ms,
so that it always ramps up to 100% within one block. This way, we can
remove the mute_factor_array.

This change breaks bit-exactness, but careful listening could not reveal
an audible difference.

This change is a part of a larger refactoring of NetEq's PLC code.

Bug: webrtc:9180
Change-Id: I4c513ce3ed8d66f9beec2abfb1f0c7ffaac7a21e
Reviewed-on: https://webrtc-review.googlesource.com/77180
Commit-Queue: Henrik Lundin <henrik.lundin@webrtc.org>
Reviewed-by: Minyue Li <minyue@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#23342}
This commit is contained in:
Henrik Lundin
2018-05-22 10:40:23 +02:00
committed by Commit Bot
parent 7a84fcf47a
commit 6dc82e8f8b
9 changed files with 81 additions and 150 deletions
Download Patch File Download Diff File Expand all files Collapse all files

40
modules/audio_coding/acm2/audio_coding_module_unittest.cc
View File

@ -984,35 +984,35 @@ class AcmReceiverBitExactnessOldApi : public ::testing::Test {
#if (defined(WEBRTC_CODEC_ISAC) || defined(WEBRTC_CODEC_ISACFX)) && \
defined(WEBRTC_CODEC_ILBC)
TEST_F(AcmReceiverBitExactnessOldApi, 8kHzOutput) {
Run(8000, PlatformChecksum("2adede965c6f87de7142c51552111d08",
"028c0fc414b1c9ab7e582dccdf381e98",
"36c95170c1393d4b765d1c17b61ef977",
Run(8000, PlatformChecksum("7294941b62293e143d6d6c84955923fd",
"f26b8c9aa8257c7185925fa5b102f46a",
"65e5ef5c3de9c2abf3c8d0989772e9fc",
"4598140b5e4f7ee66c5adad609e65a3e",
"bac5db6dff44323be401060f1279a532"));
"04a1d3e735730b6d7dbd5df10f717d27"));
}
TEST_F(AcmReceiverBitExactnessOldApi, 16kHzOutput) {
Run(16000, PlatformChecksum("c2550a3db7632de409e8db0093df1c12",
"edd31f4b6665cd5b9041fb93f2316594",
"22128bca51650cb61c80bed63b595603",
Run(16000, PlatformChecksum("de8143dd3cc23241f1e1d5cf14e04b8a",
"eada3f321120d8d5afffbe4170a55d2f",
"135d8c3c7b92aa13d45cad7c91068e3e",
"f2aad418af974a3b1694d5ae5cc2c3c7",
"61c3cb9386b9503feebcb829c9be54bd"));
"728b69068332efade35b1a9c32029e1b"));
}
TEST_F(AcmReceiverBitExactnessOldApi, 32kHzOutput) {
Run(32000, PlatformChecksum("85e28d7950132d56f90b099c90f82153",
"7b903f5c89997f271b405e63c245ef45",
"8b8fc6c6fd1dcdcfb3dd90e1ce597f10",
Run(32000, PlatformChecksum("521d336237bdcc9ab44050e9da8917fc",
"73d44a7bedb6dfa7c70cf997223d8c10",
"f3ee2f14b03fb8e98f526f82583f84d9",
"100869c8dcde51346c2073e52a272d98",
"fdec5301dc649a47d407382b587e14da"));
"5f338b4bc38707d0a14d75a357e1546e"));
}
TEST_F(AcmReceiverBitExactnessOldApi, 48kHzOutput) {
Run(48000, PlatformChecksum("ab611510e8fd6d5210a23cc04d3f0e8e",
"d8609bc9b495d81f29779344c68bcc47",
"ec5ebb90cda0ea5bb89e79d698af65de",
Run(48000, PlatformChecksum("5955e31373828969de7fb308fb58a84e",
"83c0eca235b1a806426ff6ca8655cdf7",
"1126a8c03d1ebc6aa7348b9c541e2082",
"bd44bf97e7899186532f91235cef444d",
"0baae2972cca142027d4af44f95f0bd5"));
"9d092dbc96e7ef6870b78c1056e87315"));
}
TEST_F(AcmReceiverBitExactnessOldApi, 48kHzOutputExternalDecoder) {
@ -1094,11 +1094,11 @@ TEST_F(AcmReceiverBitExactnessOldApi, 48kHzOutputExternalDecoder) {
rtc::scoped_refptr<rtc::RefCountedObject<ADFactory>> factory(
new rtc::RefCountedObject<ADFactory>);
Run(48000, PlatformChecksum("ab611510e8fd6d5210a23cc04d3f0e8e",
"d8609bc9b495d81f29779344c68bcc47",
"ec5ebb90cda0ea5bb89e79d698af65de",
Run(48000, PlatformChecksum("5955e31373828969de7fb308fb58a84e",
"83c0eca235b1a806426ff6ca8655cdf7",
"1126a8c03d1ebc6aa7348b9c541e2082",
"bd44bf97e7899186532f91235cef444d",
"0baae2972cca142027d4af44f95f0bd5"),
"9d092dbc96e7ef6870b78c1056e87315"),
factory, [](AudioCodingModule* acm) {
acm->RegisterReceiveCodec(0, {"MockPCMu", 8000, 1});
});