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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_65f7acfa8cf3a5f1edc11faa2428b914.html" > formats< / a > < / li > < li class = "navelem" > < a class = "el" href = "../../dir_f7dcbe7025bbacfc4b9a7dff6ad41d72.html" > mp2t< / a > < / li > < / ul >
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< div class = "title" > es_parser_h26x.h< / div > < / div >
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< div class = "fragment" > < div class = "line" > < a name = "l00001" > < / a > < span class = "lineno" > 1< / span >   < span class = "comment" > // Copyright 2014 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_FORMATS_MP2T_ES_PARSER_H26x_H_< / span > < / div >
< div class = "line" > < a name = "l00006" > < / a > < span class = "lineno" > 6< / span >   < span class = "preprocessor" > < / span > < span class = "preprocessor" > #define MEDIA_FORMATS_MP2T_ES_PARSER_H26x_H_< / span > < / div >
< div class = "line" > < a name = "l00007" > < / a > < span class = "lineno" > 7< / span >   < span class = "preprocessor" > < / span > < / div >
< 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 >   < / div >
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< div class = "line" > < a name = "l00010" > < / a > < span class = "lineno" > 10< / span >   < span class = "preprocessor" > #include < deque> < / span > < / div >
< div class = "line" > < a name = "l00011" > < / a > < span class = "lineno" > 11< / span >   < span class = "preprocessor" > #include < list> < / 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 = "preprocessor" > #include " packager/base/callback.h" < / span > < / div >
< div class = "line" > < a name = "l00014" > < / a > < span class = "lineno" > 14< / span >   < span class = "preprocessor" > #include " packager/base/compiler_specific.h" < / span > < / div >
< div class = "line" > < a name = "l00015" > < / a > < span class = "lineno" > 15< / span >   < span class = "preprocessor" > #include " packager/base/memory/scoped_ptr.h" < / span > < / div >
< div class = "line" > < a name = "l00016" > < / a > < span class = "lineno" > 16< / span >   < span class = "preprocessor" > #include " packager/media/codecs/nalu_reader.h" < / span > < / div >
< div class = "line" > < a name = "l00017" > < / a > < span class = "lineno" > 17< / span >   < span class = "preprocessor" > #include " packager/media/formats/mp2t/es_parser.h" < / span > < / div >
< div class = "line" > < a name = "l00018" > < / a > < span class = "lineno" > 18< / span >   < / div >
< div class = "line" > < a name = "l00019" > < / a > < span class = "lineno" > 19< / span >   < span class = "keyword" > namespace < / span > shaka {< / div >
< div class = "line" > < a name = "l00020" > < / a > < span class = "lineno" > 20< / span >   < span class = "keyword" > namespace < / span > media {< / div >
< div class = "line" > < a name = "l00021" > < / a > < span class = "lineno" > 21< / span >   < / div >
< div class = "line" > < a name = "l00022" > < / a > < span class = "lineno" > 22< / span >   < span class = "keyword" > class < / span > H26xByteToUnitStreamConverter;< / div >
< div class = "line" > < a name = "l00023" > < / a > < span class = "lineno" > 23< / span >   < span class = "keyword" > class < / span > OffsetByteQueue;< / div >
< div class = "line" > < a name = "l00024" > < / a > < span class = "lineno" > 24< / span >   < / div >
< div class = "line" > < a name = "l00025" > < / a > < span class = "lineno" > 25< / span >   < span class = "keyword" > namespace < / span > mp2t {< / div >
< div class = "line" > < a name = "l00026" > < / a > < span class = "lineno" > 26< / span >   < / div >
< div class = "line" > < a name = "l00027" > < / a > < span class = "lineno" > 27< / span >   < span class = "comment" > // A base class for common code between the H.264/H.265 es parsers.< / span > < / div >
< div class = "line" > < a name = "l00028" > < / a > < span class = "lineno" > < a class = "line" href = "../../da/d23/classshaka_1_1media_1_1mp2t_1_1EsParserH26x.html" > 28< / a > < / span >   < span class = "keyword" > class < / span > < a class = "code" href = "../../da/d23/classshaka_1_1media_1_1mp2t_1_1EsParserH26x.html" > EsParserH26x< / a > : < span class = "keyword" > public< / span > < a class = "code" href = "../../da/d10/classshaka_1_1media_1_1mp2t_1_1EsParser.html" > EsParser< / a > {< / div >
< div class = "line" > < a name = "l00029" > < / a > < span class = "lineno" > 29< / span >   < span class = "keyword" > public< / span > :< / div >
< div class = "line" > < a name = "l00030" > < / a > < span class = "lineno" > 30< / span >   < a class = "code" href = "../../da/d23/classshaka_1_1media_1_1mp2t_1_1EsParserH26x.html" > EsParserH26x< / a > (Nalu::CodecType type,< / div >
< div class = "line" > < a name = "l00031" > < / a > < span class = "lineno" > 31< / span >   scoped_ptr< H26xByteToUnitStreamConverter> stream_converter,< / div >
< div class = "line" > < a name = "l00032" > < / a > < span class = "lineno" > 32< / span >   uint32_t pid,< / div >
< div class = "line" > < a name = "l00033" > < / a > < span class = "lineno" > 33< / span >   < span class = "keyword" > const< / span > EmitSampleCB& emit_sample_cb);< / div >
< div class = "line" > < a name = "l00034" > < / a > < span class = "lineno" > 34< / span >   ~< a class = "code" href = "../../da/d23/classshaka_1_1media_1_1mp2t_1_1EsParserH26x.html" > EsParserH26x< / a > () < span class = "keyword" > override< / span > ;< / div >
< div class = "line" > < a name = "l00035" > < / a > < span class = "lineno" > 35< / span >   < / div >
< div class = "line" > < a name = "l00036" > < / a > < span class = "lineno" > 36< / span >   < span class = "comment" > // EsParser implementation overrides.< / span > < / div >
< div class = "line" > < a name = "l00037" > < / a > < span class = "lineno" > 37< / span >   < span class = "keywordtype" > bool< / span > Parse(< span class = "keyword" > const< / span > uint8_t* buf, < span class = "keywordtype" > int< / span > size, int64_t pts, int64_t dts) < span class = "keyword" > override< / span > ;< / div >
< div class = "line" > < a name = "l00038" > < / a > < span class = "lineno" > 38< / span >   < span class = "keywordtype" > void< / span > Flush() < span class = "keyword" > override< / span > ;< / div >
< div class = "line" > < a name = "l00039" > < / a > < span class = "lineno" > 39< / span >   < span class = "keywordtype" > void< / span > Reset() < span class = "keyword" > override< / span > ;< / div >
< div class = "line" > < a name = "l00040" > < / a > < span class = "lineno" > 40< / span >   < / div >
< div class = "line" > < a name = "l00041" > < / a > < span class = "lineno" > 41< / span >   < span class = "keyword" > protected< / span > :< / div >
< div class = "line" > < a name = "l00042" > < / a > < span class = "lineno" > 42< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "../../de/dea/classshaka_1_1media_1_1H26xByteToUnitStreamConverter.html" > H26xByteToUnitStreamConverter< / a > * stream_converter()< span class = "keyword" > const < / span > {< / div >
< div class = "line" > < a name = "l00043" > < / a > < span class = "lineno" > 43< / span >   < span class = "keywordflow" > return< / span > stream_converter_.get();< / div >
< div class = "line" > < a name = "l00044" > < / a > < span class = "lineno" > 44< / span >   }< / div >
< div class = "line" > < a name = "l00045" > < / a > < span class = "lineno" > 45< / span >   < / div >
< div class = "line" > < a name = "l00046" > < / a > < span class = "lineno" > 46< / span >   < span class = "keyword" > private< / span > :< / div >
< div class = "line" > < a name = "l00047" > < / a > < span class = "lineno" > 47< / span >   < span class = "keyword" > struct < / span > TimingDesc {< / div >
< div class = "line" > < a name = "l00048" > < / a > < span class = "lineno" > 48< / span >   int64_t dts;< / div >
< div class = "line" > < a name = "l00049" > < / a > < span class = "lineno" > 49< / span >   int64_t pts;< / div >
< div class = "line" > < a name = "l00050" > < / a > < span class = "lineno" > 50< / span >   };< / div >
< div class = "line" > < a name = "l00051" > < / a > < span class = "lineno" > 51< / span >   < span class = "keyword" > struct < / span > NaluInfo {< / div >
< div class = "line" > < a name = "l00052" > < / a > < span class = "lineno" > 52< / span >   < span class = "comment" > // NOTE: Nalu does not own the memory pointed by its data pointers. The< / span > < / div >
< div class = "line" > < a name = "l00053" > < / a > < span class = "lineno" > 53< / span >   < span class = "comment" > // caller owns and maintains the memory.< / span > < / div >
< div class = "line" > < a name = "l00054" > < / a > < span class = "lineno" > 54< / span >   < a class = "code" href = "../../d6/dff/classshaka_1_1media_1_1Nalu.html" > Nalu< / a > nalu;< / div >
< div class = "line" > < a name = "l00055" > < / a > < span class = "lineno" > 55< / span >   < span class = "comment" > // The offset of the NALU from the beginning of the stream, usable as an< / span > < / div >
< div class = "line" > < a name = "l00056" > < / a > < span class = "lineno" > 56< / span >   < span class = "comment" > // argument to OffsetByteQueue. This points to the start code.< / span > < / div >
< div class = "line" > < a name = "l00057" > < / a > < span class = "lineno" > 57< / span >   uint64_t position;< / div >
< div class = "line" > < a name = "l00058" > < / a > < span class = "lineno" > 58< / span >   uint8_t start_code_size;< / div >
< div class = "line" > < a name = "l00059" > < / a > < span class = "lineno" > 59< / span >   };< / div >
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< div class = "line" > < a name = "l00060" > < / a > < span class = "lineno" > 60< / span >   < / div >
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< div class = "line" > < a name = "l00061" > < / a > < span class = "lineno" > 61< / span >   < span class = "comment" > // Processes a NAL unit found in ParseInternal. The @a pps_id_for_access_unit< / span > < / div >
< div class = "line" > < a name = "l00062" > < / a > < span class = "lineno" > 62< / span >   < span class = "comment" > // value will be passed to UpdateVideoDecoderConfig.< / span > < / div >
< div class = "line" > < a name = "l00063" > < / a > < span class = "lineno" > 63< / span >   < span class = "keyword" > virtual< / span > < span class = "keywordtype" > bool< / span > ProcessNalu(< span class = "keyword" > const< / span > < a class = "code" href = "../../d6/dff/classshaka_1_1media_1_1Nalu.html" > Nalu< / a > & nalu,< / div >
< div class = "line" > < a name = "l00064" > < / a > < span class = "lineno" > 64< / span >   < span class = "keywordtype" > bool< / span > * is_key_frame,< / div >
< div class = "line" > < a name = "l00065" > < / a > < span class = "lineno" > 65< / span >   < span class = "keywordtype" > int< / span > * pps_id_for_access_unit) = 0;< / div >
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< div class = "line" > < a name = "l00066" > < / a > < span class = "lineno" > 66< / span >   < / div >
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< div class = "line" > < a name = "l00067" > < / a > < span class = "lineno" > 67< / span >   < span class = "comment" > // Update the video decoder config.< / span > < / div >
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< div class = "line" > < a name = "l00068" > < / a > < span class = "lineno" > 68< / span >   < span class = "comment" > // Return true if successful.< / span > < / div >
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< div class = "line" > < a name = "l00069" > < / a > < span class = "lineno" > 69< / span >   < span class = "keyword" > virtual< / span > < span class = "keywordtype" > bool< / span > UpdateVideoDecoderConfig(< span class = "keywordtype" > int< / span > pps_id) = 0;< / div >
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< div class = "line" > < a name = "l00070" > < / a > < span class = "lineno" > 70< / span >   < / div >
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< div class = "line" > < a name = "l00071" > < / a > < span class = "lineno" > 71< / span >   < span class = "comment" > // Skips to the first access unit available. Returns whether an access unit< / span > < / div >
< div class = "line" > < a name = "l00072" > < / a > < span class = "lineno" > 72< / span >   < span class = "comment" > // is found.< / span > < / div >
< div class = "line" > < a name = "l00073" > < / a > < span class = "lineno" > 73< / span >   < span class = "keywordtype" > bool< / span > SkipToFirstAccessUnit();< / div >
< div class = "line" > < a name = "l00074" > < / a > < span class = "lineno" > 74< / span >   < / div >
< div class = "line" > < a name = "l00075" > < / a > < span class = "lineno" > 75< / span >   < span class = "comment" > // Finds the next NAL unit by finding the next start code. This will modify< / span > < / div >
< div class = "line" > < a name = "l00076" > < / a > < span class = "lineno" > 76< / span >   < span class = "comment" > // the search position.< / span > < / div >
< div class = "line" > < a name = "l00077" > < / a > < span class = "lineno" > 77< / span >   < span class = "comment" > // Returns true when it has found the next NALU.< / span > < / div >
< div class = "line" > < a name = "l00078" > < / a > < span class = "lineno" > 78< / span >   < span class = "keywordtype" > bool< / span > SearchForNextNalu();< / 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" > // Process an access unit that spans the given NAL units (end is exclusive< / span > < / div >
< div class = "line" > < a name = "l00081" > < / a > < span class = "lineno" > 81< / span >   < span class = "comment" > // and should point to a valid object).< / span > < / div >
< div class = "line" > < a name = "l00082" > < / a > < span class = "lineno" > 82< / span >   < span class = "keywordtype" > bool< / span > ProcessAccessUnit(std::deque< NaluInfo> ::iterator end);< / div >
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< div class = "line" > < a name = "l00083" > < / a > < span class = "lineno" > 83< / span >   < / div >
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< div class = "line" > < a name = "l00084" > < / a > < span class = "lineno" > 84< / span >   < span class = "comment" > // Resumes the H26x ES parsing.< / span > < / div >
< div class = "line" > < a name = "l00085" > < / a > < span class = "lineno" > 85< / span >   < span class = "comment" > // Return true if successful.< / span > < / div >
< div class = "line" > < a name = "l00086" > < / a > < span class = "lineno" > 86< / span >   < span class = "keywordtype" > bool< / span > ParseInternal();< / div >
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< div class = "line" > < a name = "l00087" > < / a > < span class = "lineno" > 87< / span >   < / div >
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< div class = "line" > < a name = "l00088" > < / a > < span class = "lineno" > 88< / span >   < span class = "comment" > // Emit a frame whose position in the ES queue starts at |access_unit_pos|.< / span > < / div >
< div class = "line" > < a name = "l00089" > < / a > < span class = "lineno" > 89< / span >   < span class = "comment" > // Returns true if successful, false if no PTS is available for the frame.< / span > < / div >
< div class = "line" > < a name = "l00090" > < / a > < span class = "lineno" > 90< / span >   < span class = "keywordtype" > bool< / span > EmitFrame(int64_t access_unit_pos,< / div >
< div class = "line" > < a name = "l00091" > < / a > < span class = "lineno" > 91< / span >   < span class = "keywordtype" > int< / span > access_unit_size,< / div >
< div class = "line" > < a name = "l00092" > < / a > < span class = "lineno" > 92< / span >   < span class = "keywordtype" > bool< / span > is_key_frame,< / div >
< div class = "line" > < a name = "l00093" > < / a > < span class = "lineno" > 93< / span >   < span class = "keywordtype" > int< / span > pps_id);< / div >
< div class = "line" > < a name = "l00094" > < / a > < span class = "lineno" > 94< / span >   < / div >
< div class = "line" > < a name = "l00095" > < / a > < span class = "lineno" > 95< / span >   < span class = "comment" > // Callback to pass the frames.< / span > < / div >
< div class = "line" > < a name = "l00096" > < / a > < span class = "lineno" > 96< / span >   EmitSampleCB emit_sample_cb_;< / div >
< div class = "line" > < a name = "l00097" > < / a > < span class = "lineno" > 97< / span >   < / div >
< div class = "line" > < a name = "l00098" > < / a > < span class = "lineno" > 98< / span >   < span class = "comment" > // The type of stream being parsed.< / span > < / div >
< div class = "line" > < a name = "l00099" > < / a > < span class = "lineno" > 99< / span >   Nalu::CodecType type_;< / div >
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< div class = "line" > < a name = "l00100" > < / a > < span class = "lineno" > 100< / span >   < / div >
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< div class = "line" > < a name = "l00101" > < / a > < span class = "lineno" > 101< / span >   < span class = "comment" > // Bytes of the ES stream that have not been emitted yet.< / span > < / div >
< div class = "line" > < a name = "l00102" > < / a > < span class = "lineno" > 102< / span >   scoped_ptr< media::OffsetByteQueue> es_queue_;< / div >
< div class = "line" > < a name = "l00103" > < / a > < span class = "lineno" > 103< / span >   std::list< std::pair< int64_t, TimingDesc> > timing_desc_list_;< / div >
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< div class = "line" > < a name = "l00104" > < / a > < span class = "lineno" > 104< / span >   < / div >
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< div class = "line" > < a name = "l00105" > < / a > < span class = "lineno" > 105< / span >   < span class = "comment" > // Parser state.< / span > < / div >
< div class = "line" > < a name = "l00106" > < / a > < span class = "lineno" > 106< / span >   < span class = "comment" > // The position of the search head.< / span > < / div >
< div class = "line" > < a name = "l00107" > < / a > < span class = "lineno" > 107< / span >   uint64_t current_search_position_;< / div >
< div class = "line" > < a name = "l00108" > < / a > < span class = "lineno" > 108< / span >   < span class = "comment" > // The NALU that make up the current access unit. This may include elements< / span > < / div >
< div class = "line" > < a name = "l00109" > < / a > < span class = "lineno" > 109< / span >   < span class = "comment" > // from the next access unit. The last item is the NAL unit currently< / span > < / div >
< div class = "line" > < a name = "l00110" > < / a > < span class = "lineno" > 110< / span >   < span class = "comment" > // being processed.< / span > < / div >
< div class = "line" > < a name = "l00111" > < / a > < span class = "lineno" > 111< / span >   std::deque< NaluInfo> access_unit_nalus_;< / div >
< div class = "line" > < a name = "l00112" > < / a > < span class = "lineno" > 112< / span >   < / div >
< div class = "line" > < a name = "l00113" > < / a > < span class = "lineno" > 113< / span >   < span class = "comment" > // Filter to convert H.264/H.265 Annex B byte stream to unit stream.< / span > < / div >
< div class = "line" > < a name = "l00114" > < / a > < span class = "lineno" > 114< / span >   scoped_ptr< H26xByteToUnitStreamConverter> stream_converter_;< / div >
< div class = "line" > < a name = "l00115" > < / a > < span class = "lineno" > 115< / span >   < / div >
< div class = "line" > < a name = "l00116" > < / a > < span class = "lineno" > 116< / span >   < span class = "comment" > // Frame for which we do not yet have a duration.< / span > < / div >
< div class = "line" > < a name = "l00117" > < / a > < span class = "lineno" > 117< / span >   scoped_refptr< MediaSample> pending_sample_;< / div >
< div class = "line" > < a name = "l00118" > < / a > < span class = "lineno" > 118< / span >   uint64_t pending_sample_duration_;< / div >
< div class = "line" > < a name = "l00119" > < / a > < span class = "lineno" > 119< / span >   < / div >
< div class = "line" > < a name = "l00120" > < / a > < span class = "lineno" > 120< / span >   < span class = "comment" > // Indicates whether waiting for first key frame.< / span > < / div >
< div class = "line" > < a name = "l00121" > < / a > < span class = "lineno" > 121< / span >   < span class = "keywordtype" > bool< / span > waiting_for_key_frame_;< / div >
< div class = "line" > < a name = "l00122" > < / a > < span class = "lineno" > 122< / span >   };< / div >
< div class = "line" > < a name = "l00123" > < / a > < span class = "lineno" > 123< / span >   < / div >
< div class = "line" > < a name = "l00124" > < / a > < span class = "lineno" > 124< / span >   } < span class = "comment" > // namespace mp2t< / span > < / div >
< div class = "line" > < a name = "l00125" > < / a > < span class = "lineno" > 125< / span >   } < span class = "comment" > // namespace media< / span > < / div >
< div class = "line" > < a name = "l00126" > < / a > < span class = "lineno" > 126< / span >   } < span class = "comment" > // namespace shaka< / span > < / div >
< div class = "line" > < a name = "l00127" > < / a > < span class = "lineno" > 127< / span >   < / div >
< div class = "line" > < a name = "l00128" > < / a > < span class = "lineno" > 128< / span >   < span class = "preprocessor" > #endif< / span > < / div >
< div class = "ttc" id = "classshaka_1_1media_1_1mp2t_1_1EsParserH26x_html" > < div class = "ttname" > < a href = "../../da/d23/classshaka_1_1media_1_1mp2t_1_1EsParserH26x.html" > shaka::media::mp2t::EsParserH26x< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../df/d8d/es__parser__h26x_8h_source.html#l00028" > es_parser_h26x.h:28< / a > < / div > < / div >
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< div class = "ttc" id = "classshaka_1_1media_1_1H26xByteToUnitStreamConverter_html" > < div class = "ttname" > < a href = "../../de/dea/classshaka_1_1media_1_1H26xByteToUnitStreamConverter.html" > shaka::media::H26xByteToUnitStreamConverter< / a > < / div > < div class = "ttdoc" > A base class that is used to convert H.26x byte streams to NAL unit streams. < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../db/d31/h26x__byte__to__unit__stream__converter_8h_source.html#l00022" > h26x_byte_to_unit_stream_converter.h:22< / a > < / div > < / div >
< div class = "ttc" id = "classshaka_1_1media_1_1Nalu_html" > < div class = "ttname" > < a href = "../../d6/dff/classshaka_1_1media_1_1Nalu.html" > shaka::media::Nalu< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../d4/d87/nalu__reader_8h_source.html#l00026" > nalu_reader.h:26< / a > < / div > < / div >
< div class = "ttc" id = "classshaka_1_1media_1_1mp2t_1_1EsParser_html" > < div class = "ttname" > < a href = "../../da/d10/classshaka_1_1media_1_1mp2t_1_1EsParser.html" > shaka::media::mp2t::EsParser< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../d2/deb/es__parser_8h_source.html#l00021" > es_parser.h:21< / a > < / div > < / div >
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< / div > <!-- fragment --> < / div > <!-- contents -->
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