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< li class = "navelem" > < a class = "el" href = "../../dir_39dc0668bd5a501998f94e8b4e546c71.html" > media< / a > < / li > < li class = "navelem" > < a class = "el" href = "../../dir_c6ada2450b25ab5438a4dba6c9b890af.html" > base< / a > < / li > < / ul >
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< div class = "fragment" > < div class = "line" > < a name = "l00001" > < / a > < span class = "lineno" > 1< / span >   < span class = "comment" > // Copyright (c) 2012 The Chromium Authors. All rights reserved.< / span > < / div >
< div class = "line" > < a name = "l00002" > < / a > < span class = "lineno" > 2< / span >   < span class = "comment" > // Use of this source code is governed by a BSD-style license that can be< / span > < / div >
< div class = "line" > < a name = "l00003" > < / a > < span class = "lineno" > 3< / span >   < span class = "comment" > // found in the LICENSE file.< / span > < / div >
< div class = "line" > < a name = "l00004" > < / a > < span class = "lineno" > 4< / span >   < / div >
< div class = "line" > < a name = "l00005" > < / a > < span class = "lineno" > 5< / span >   < span class = "preprocessor" > #ifndef MEDIA_BASE_BIT_READER_H_< / span > < / div >
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< div class = "line" > < a name = "l00006" > < / a > < span class = "lineno" > 6< / span >   < span class = "preprocessor" > < / span > < span class = "preprocessor" > #define MEDIA_BASE_BIT_READER_H_< / span > < / div >
< div class = "line" > < a name = "l00007" > < / a > < span class = "lineno" > 7< / span >   < span class = "preprocessor" > < / span > < / div >
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< div class = "line" > < a name = "l00008" > < / a > < span class = "lineno" > 8< / span >   < span class = "preprocessor" > #include < stdint.h> < / span > < / div >
< div class = "line" > < a name = "l00009" > < / a > < span class = "lineno" > 9< / span >   < span class = "preprocessor" > #include < sys/types.h> < / span > < / div >
< div class = "line" > < a name = "l00010" > < / a > < span class = "lineno" > 10< / span >   < / div >
< div class = "line" > < a name = "l00011" > < / a > < span class = "lineno" > 11< / span >   < span class = "preprocessor" > #include " packager/base/logging.h" < / span > < / div >
< div class = "line" > < a name = "l00012" > < / a > < span class = "lineno" > 12< / span >   < / div >
< div class = "line" > < a name = "l00013" > < / a > < span class = "lineno" > 13< / span >   < span class = "keyword" > namespace < / span > edash_packager {< / div >
< div class = "line" > < a name = "l00014" > < / a > < span class = "lineno" > 14< / span >   < span class = "keyword" > namespace < / span > media {< / div >
< div class = "line" > < a name = "l00015" > < / a > < span class = "lineno" > 15< / span >   < / div >
< div class = "line" > < a name = "l00017" > < / a > < span class = "lineno" > < a class = "line" href = "../../df/db4/classedash__packager_1_1media_1_1BitReader.html" > 17< / a > < / span >   < span class = "keyword" > class < / span > < a class = "code" href = "../../df/db4/classedash__packager_1_1media_1_1BitReader.html" > BitReader< / a > {< / div >
< div class = "line" > < a name = "l00018" > < / a > < span class = "lineno" > 18< / span >   < span class = "keyword" > public< / span > :< / div >
< div class = "line" > < a name = "l00022" > < / a > < span class = "lineno" > 22< / span >   < a class = "code" href = "../../df/db4/classedash__packager_1_1media_1_1BitReader.html#a7cfecfaf6169a0c9286d62b24e7b934e" > BitReader< / a > (< span class = "keyword" > const< / span > uint8_t* data, off_t size);< / div >
< div class = "line" > < a name = "l00023" > < / a > < span class = "lineno" > 23< / span >   ~< a class = "code" href = "../../df/db4/classedash__packager_1_1media_1_1BitReader.html" > BitReader< / a > ();< / div >
< div class = "line" > < a name = "l00024" > < / a > < span class = "lineno" > 24< / span >   < / div >
< div class = "line" > < a name = "l00034" > < / a > < span class = "lineno" > 34< / span >   < span class = "keyword" > template< / span > < < span class = "keyword" > typename< / span > T> < / div >
< div class = "line" > < a name = "l00035" > < / a > < span class = "lineno" > < a class = "line" href = "../../df/db4/classedash__packager_1_1media_1_1BitReader.html#a9a66cdd1013eb535e7e1eec60a91bf8c" > 35< / a > < / span >   < span class = "keywordtype" > bool< / span > < a class = "code" href = "../../df/db4/classedash__packager_1_1media_1_1BitReader.html#a9a66cdd1013eb535e7e1eec60a91bf8c" > ReadBits< / a > (< span class = "keywordtype" > int< / span > num_bits, T* out) {< / div >
< div class = "line" > < a name = "l00036" > < / a > < span class = "lineno" > 36< / span >   DCHECK_LE(num_bits, static_cast< int> (< span class = "keyword" > sizeof< / span > (T) * 8));< / div >
< div class = "line" > < a name = "l00037" > < / a > < span class = "lineno" > 37< / span >   uint64_t temp;< / div >
< div class = "line" > < a name = "l00038" > < / a > < span class = "lineno" > 38< / span >   < span class = "keywordtype" > bool< / span > ret = ReadBitsInternal(num_bits, & temp);< / div >
< div class = "line" > < a name = "l00039" > < / a > < span class = "lineno" > 39< / span >   *out = < span class = "keyword" > static_cast< < / span > T< span class = "keyword" > > < / span > (temp);< / div >
< div class = "line" > < a name = "l00040" > < / a > < span class = "lineno" > 40< / span >   < span class = "keywordflow" > return< / span > ret;< / div >
< div class = "line" > < a name = "l00041" > < / a > < span class = "lineno" > 41< / span >   }< / div >
< div class = "line" > < a name = "l00042" > < / a > < span class = "lineno" > 42< / span >   < / div >
< div class = "line" > < a name = "l00049" > < / a > < span class = "lineno" > 49< / span >   < span class = "keywordtype" > bool< / span > < a class = "code" href = "../../df/db4/classedash__packager_1_1media_1_1BitReader.html#acacb97d71aaae01796b90d27e7cdca0a" > SkipBits< / a > (< span class = "keywordtype" > int< / span > num_bits);< / div >
< div class = "line" > < a name = "l00050" > < / a > < span class = "lineno" > 50< / span >   < / div >
< div class = "line" > < a name = "l00052" > < / a > < span class = "lineno" > 52< / span >   < span class = "keywordtype" > int< / span > < a class = "code" href = "../../df/db4/classedash__packager_1_1media_1_1BitReader.html#a1409a0968749ca5a55ba823cd718065b" > bits_available< / a > () < span class = "keyword" > const< / span > ;< / div >
< div class = "line" > < a name = "l00053" > < / a > < span class = "lineno" > 53< / span >   < / div >
< div class = "line" > < a name = "l00054" > < / a > < span class = "lineno" > 54< / span >   < span class = "keyword" > private< / span > :< / div >
< div class = "line" > < a name = "l00055" > < / a > < span class = "lineno" > 55< / span >   < span class = "comment" > // Help function used by ReadBits to avoid inlining the bit reading logic.< / span > < / div >
< div class = "line" > < a name = "l00056" > < / a > < span class = "lineno" > 56< / span >   < span class = "keywordtype" > bool< / span > ReadBitsInternal(< span class = "keywordtype" > int< / span > num_bits, uint64_t* out);< / div >
< div class = "line" > < a name = "l00057" > < / a > < span class = "lineno" > 57< / span >   < / div >
< div class = "line" > < a name = "l00058" > < / a > < span class = "lineno" > 58< / span >   < span class = "comment" > // Advance to the next byte, loading it into curr_byte_.< / span > < / div >
< div class = "line" > < a name = "l00059" > < / a > < span class = "lineno" > 59< / span >   < span class = "comment" > // If the num_remaining_bits_in_curr_byte_ is 0 after this function returns,< / span > < / div >
< div class = "line" > < a name = "l00060" > < / a > < span class = "lineno" > 60< / span >   < span class = "comment" > // the stream has reached the end.< / span > < / div >
< div class = "line" > < a name = "l00061" > < / a > < span class = "lineno" > 61< / span >   < span class = "keywordtype" > void< / span > UpdateCurrByte();< / div >
< div class = "line" > < a name = "l00062" > < / a > < span class = "lineno" > 62< / span >   < / div >
< div class = "line" > < a name = "l00063" > < / a > < span class = "lineno" > 63< / span >   < span class = "comment" > // Pointer to the next unread (not in curr_byte_) byte in the stream.< / span > < / div >
< div class = "line" > < a name = "l00064" > < / a > < span class = "lineno" > 64< / span >   < span class = "keyword" > const< / span > uint8_t* data_;< / div >
< div class = "line" > < a name = "l00065" > < / a > < span class = "lineno" > 65< / span >   < / div >
< div class = "line" > < a name = "l00066" > < / a > < span class = "lineno" > 66< / span >   < span class = "comment" > // Bytes left in the stream (without the curr_byte_).< / span > < / div >
< div class = "line" > < a name = "l00067" > < / a > < span class = "lineno" > 67< / span >   off_t bytes_left_;< / div >
< div class = "line" > < a name = "l00068" > < / a > < span class = "lineno" > 68< / span >   < / div >
< div class = "line" > < a name = "l00069" > < / a > < span class = "lineno" > 69< / span >   < span class = "comment" > // Contents of the current byte; first unread bit starting at position< / span > < / div >
< div class = "line" > < a name = "l00070" > < / a > < span class = "lineno" > 70< / span >   < span class = "comment" > // 8 - num_remaining_bits_in_curr_byte_ from MSB.< / span > < / div >
< div class = "line" > < a name = "l00071" > < / a > < span class = "lineno" > 71< / span >   uint8_t curr_byte_;< / div >
< div class = "line" > < a name = "l00072" > < / a > < span class = "lineno" > 72< / span >   < / div >
< div class = "line" > < a name = "l00073" > < / a > < span class = "lineno" > 73< / span >   < span class = "comment" > // Number of bits remaining in curr_byte_< / span > < / div >
< div class = "line" > < a name = "l00074" > < / a > < span class = "lineno" > 74< / span >   < span class = "keywordtype" > int< / span > num_remaining_bits_in_curr_byte_;< / div >
< div class = "line" > < a name = "l00075" > < / a > < span class = "lineno" > 75< / span >   < / div >
< div class = "line" > < a name = "l00076" > < / a > < span class = "lineno" > 76< / span >   < span class = "keyword" > private< / span > :< / div >
< div class = "line" > < a name = "l00077" > < / a > < span class = "lineno" > 77< / span >   DISALLOW_COPY_AND_ASSIGN(< a class = "code" href = "../../df/db4/classedash__packager_1_1media_1_1BitReader.html" > BitReader< / a > );< / div >
< div class = "line" > < a name = "l00078" > < / a > < span class = "lineno" > 78< / span >   };< / div >
< div class = "line" > < a name = "l00079" > < / a > < span class = "lineno" > 79< / span >   < / div >
< div class = "line" > < a name = "l00080" > < / a > < span class = "lineno" > 80< / span >   } < span class = "comment" > // namespace media< / span > < / div >
< div class = "line" > < a name = "l00081" > < / a > < span class = "lineno" > 81< / span >   } < span class = "comment" > // namespace edash_packager< / span > < / div >
< div class = "line" > < a name = "l00082" > < / a > < span class = "lineno" > 82< / span >   < / div >
< div class = "line" > < a name = "l00083" > < / a > < span class = "lineno" > 83< / span >   < span class = "preprocessor" > #endif // MEDIA_BASE_BIT_READER_H_< / span > < / div >
< div class = "ttc" id = "classedash__packager_1_1media_1_1BitReader_html_a7cfecfaf6169a0c9286d62b24e7b934e" > < div class = "ttname" > < a href = "../../df/db4/classedash__packager_1_1media_1_1BitReader.html#a7cfecfaf6169a0c9286d62b24e7b934e" > edash_packager::media::BitReader::BitReader< / a > < / div > < div class = "ttdeci" > BitReader(const uint8_t *data, off_t size)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../d5/de0/bit__reader_8cc_source.html#l00012" > bit_reader.cc:12< / a > < / div > < / div >
< div class = "ttc" id = "classedash__packager_1_1media_1_1BitReader_html_a9a66cdd1013eb535e7e1eec60a91bf8c" > < div class = "ttname" > < a href = "../../df/db4/classedash__packager_1_1media_1_1BitReader.html#a9a66cdd1013eb535e7e1eec60a91bf8c" > edash_packager::media::BitReader::ReadBits< / a > < / div > < div class = "ttdeci" > bool ReadBits(int num_bits, T *out)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../d4/dd3/bit__reader_8h_source.html#l00035" > bit_reader.h:35< / a > < / div > < / div >
< div class = "ttc" id = "classedash__packager_1_1media_1_1BitReader_html_a1409a0968749ca5a55ba823cd718065b" > < div class = "ttname" > < a href = "../../df/db4/classedash__packager_1_1media_1_1BitReader.html#a1409a0968749ca5a55ba823cd718065b" > edash_packager::media::BitReader::bits_available< / a > < / div > < div class = "ttdeci" > int bits_available() const < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../d5/de0/bit__reader_8cc_source.html#l00053" > bit_reader.cc:53< / a > < / div > < / div >
< div class = "ttc" id = "classedash__packager_1_1media_1_1BitReader_html" > < div class = "ttname" > < a href = "../../df/db4/classedash__packager_1_1media_1_1BitReader.html" > edash_packager::media::BitReader< / a > < / div > < div class = "ttdoc" > A class to read bit streams. < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../d4/dd3/bit__reader_8h_source.html#l00017" > bit_reader.h:17< / a > < / div > < / div >
< div class = "ttc" id = "classedash__packager_1_1media_1_1BitReader_html_acacb97d71aaae01796b90d27e7cdca0a" > < div class = "ttname" > < a href = "../../df/db4/classedash__packager_1_1media_1_1BitReader.html#acacb97d71aaae01796b90d27e7cdca0a" > edash_packager::media::BitReader::SkipBits< / a > < / div > < div class = "ttdeci" > bool SkipBits(int num_bits)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../d5/de0/bit__reader_8cc_source.html#l00021" > bit_reader.cc:21< / a > < / div > < / div >
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