/* * Copyright 2015 The WebRTC 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 "rtc_base/bit_buffer.h" #include <cstddef>#include <cstdint>#include <limits>#include <span>#include "rtc_base/bitstream_reader.h" #include "test/gmock.h" #include "test/gtest.h" namespace webrtc {using ::testing::Each;using ::testing::ElementsAre;using ::testing::Eq;64 ];32 );32 * 8 ;3 ));3 ;3 ));3 ;15 ));15 ;37 ));37 ;32 * 8 ));4 ] = {0 };4 );// Bit offsets are [0,7]. 0 , 0 ));0 , 7 ));0 u, byte_offset);7 u, bit_offset);0 , 8 ));0 u, byte_offset);7 u, bit_offset);// Byte offsets are [0,length]. At byte offset length, the bit offset must be // 0. 0 , 0 ));2 , 4 ));2 u, byte_offset);4 u, bit_offset);4 , 0 ));5 , 0 ));4 u, byte_offset);0 u, bit_offset);4 , 1 ));// Disable death test on Android because it relies on fork() and doesn't play // nicely. #if GTEST_HAS_DEATH_TEST#if !defined (WEBRTC_ANDROID)// Passing a null out parameter is death. "" );#endif #endif 2 ] = {};2 );16 u);0 xf, /*num_values=*/1 << 4)); 12 u);0 x3, /*num_values=*/1 << 4)); 8 u);0 xa, /*num_values=*/1 << 4)); 4 u);0 x0, /*num_values=*/1 << 4)); 0 u);0 xf3, 0 xa0));2 ] = {};2 );/*val=*/1, /*num_values=*/6), 2 u);/*val=*/2, /*num_values=*/6), 3 u);// Values [0, 1] can fit into two bit. 16 u);/*val=*/0, /*num_values=*/6)); 14 u);/*val=*/1, /*num_values=*/6)); 12 u);// Values [2, 5] require 3 bits. /*val=*/2, /*num_values=*/6)); 9 u);/*val=*/3, /*num_values=*/6)); 6 u);/*val=*/4, /*num_values=*/6)); 3 u);/*val=*/5, /*num_values=*/6)); 0 u);// Bit values are // 00.01.100.101.110.111 = 00011001|01110111 = 0x19|77 0 x19, 0 x77));/*num_values=*/6), 0u); /*num_values=*/6), 1u); /*num_values=*/6), 2u); /*num_values=*/6), 3u); /*num_values=*/6), 4u); /*num_values=*/6), 5u); 2 ] = {};2 );16 u);0 , /*num_values=*/1)); 16 u);16 ] = {0 };4 );// Write some bit data at various sizes. 0 x2u, 3 ));0 x1u, 2 ));0 x53u, 7 ));0 x0u, 2 ));0 x1u, 1 ));0 x1ABCDu, 17 ));// That should be all that fits in the buffer. 1 , 1 ));4 ));3 ), 0 x2u);2 ), 0 x1u);7 ), 0 x53u);2 ), 0 x0u);1 ), 0 x1u);17 ), 0 x1ABCDu);// And there should be nothing left. 0 );16 ];// Offset 3, to get things misaligned. 3 ));0 x12u));0 x3456u));0 x789ABCDEu));3 );0 x12u);0 x3456u);0 x789ABCDEu);char test_string[] = "my precious" ;64 ] = {0 };64 );for (char value : test_string) {for (char value : test_string) {0 b1111'1111, 0b1111' 1111 };0 b11, 2 ));0 b1100'0000, 0b1111' 1111 ));0 , 3 ));0 b11, 2 ));0 b1100'0110, 0b1111' 1111 ));3 ));0 b1100'0110, 0b0000' 0000 ));2 ];sizeof (small_number));129 ));0 x81, 0 x01));10 ];sizeof (large_number));0 xFF, 0 xFF, 0 xFF, 0 xFF, 0 xFF, 0 xFF,0 xFF, 0 xFF, 0 xFF, 0 x01));1 ];sizeof (bytes));12345 ));2 ];sizeof (buffer));"ab" ));'a' , 'b' ));2 ];sizeof (buffer));"abc" ));1 ];8 u);0 b11, 2 ));3 ));0 b111, 1 ));2 u);0 ], 0 b11'000' 1 '00); 1 ];8 u);0 ));8 u);0 b11, 2 ));6 u);0 ));6 u);2 ];16 u);0 b11, 2 ));9 ));0 b11, 1 ));4 u);0 b11'000000, 0b000' 1 '0000)); 2 ];16 u);9 ));0 b1, 1 ));6 u);0 , 0 b0'1' 000000 ));3 ];24 u);0 b11, 2 ));14 ));0 b1, 1 ));7 u);0 b11'000000, 0, 0b1' 0000000 ));2 ];16 u);0 b11, 2 ));0 u);0 b11'000000, 0)); 1000 ];8 '000u); 0 u);0 )));// namespace webrtc
Messung V0.5 in Prozent C=90 H=74 G=82
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(vorverarbeitet am 2026-08-22)
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