Add AVC and HEVC codec mappings

codec_specs.md

@@ -182,6 +182,26 @@ Description: The Matroska video stream will contain a demuxed Elementary Stream
 
 Initialization: none
 
+### V_MPEG4/ISO/AVC
+
+Codec ID: V_MPEG4/ISO/AVC
+
+Codec Name: AVC/H.264
+
+Description: Individual pictures of AVC/H.264 stored as described in [@!ISO.14496-15.2014].
+
+Initialization: The `Private Data` contains a `AVCDecoderConfigurationRecord` structure as defined in [@!ISO.14496-15.2014], optionally followed by one or more [extension blocks](#private-data-extension-blocks).
+
+### V_MPEGH/ISO/HEVC
+
+Codec ID: V_MPEGH/ISO/HEVC
+
+Codec Name: HEVC/H.265
+
+Description: Individual pictures of HEVC/H.265 stored as described in [@!ISO.14496-15.2014].
+
+Initialization: The `Private Data` contains a `HEVCDecoderConfigurationRecord` structure as defined in [@!ISO.14496-15.2014], optionally followed by one or more [extension blocks](#private-data-extension-blocks).
+
 ### V_REAL/RV10
 
 Codec ID: V_REAL/RV10
@@ -763,3 +783,34 @@ Codec Name: VobBtn Buttons
 
 Description: Based on [MPEG/VOB PCI packets](http://dvd.sourceforge.net/dvdinfo/pci_pkt.html). The file contains a header consisting of the string "butonDVD" followed by the width and height in pixels (16 bits integer each) and 4 reserved bytes. The rest is full [PCI packets](http://dvd.sourceforge.net/dvdinfo/pci_pkt.html).
 
+## Private Data Extension Blocks
+
+When indicated in the codec description as possible, `Private Data` codec specific data MAY be followed by one or more extension blocks.
+
+Each extension block begins with a 4-byte extension block size field which is the size of the extension block minus 4 (excluding the size of the extension block size field), followed by an extension block identifier field.
+
+Registered `Private Data` extension block identifier fields are:
+
+### dvcC
+
+Block identifier: 0x64766343
+
+Extension name: Dolby Vision configuration
+
+Description: `DOVIDecoderConfigurationRecord` structure as defined in [Dolby Vision Streams File Format](https://www.dolby.com/us/en/technologies/dolby-vision/dolby-vision-bitstreams-within-the-iso-base-media-file-format-v2.1.2.pdf).
+
+### hvcE
+
+Block identifier: 0x68766345
+
+Extension name: Dolby Vision enhancement-layer HEVC configuration
+
+Description: `HEVCDecoderConfigurationRecord` structure as defined in [@!ISO.14496-15.2014], as described in [Dolby Vision Streams File Format](https://www.dolby.com/us/en/technologies/dolby-vision/dolby-vision-bitstreams-within-the-iso-base-media-file-format-v2.1.2.pdf). This extension MUST NOT be used if `Codec ID` is not `V_MPEGH/ISO/HEVC`.
+
+### mvcC
+
+Block identifier: 0x6D766343
+
+Extension name: MVC configuration
+
+Description: `MVCDecoderConfigurationRecord` structure as defined in [@!ISO.14496-15.2014]. This extension MUST NOT be used if `Codec ID` is not `V_MPEG4/ISO/AVC`.

rfc_backmatter_codec.md

@@ -22,3 +22,14 @@
   </front>
   <seriesInfo name="IEEE" value="Standard 754" />
 </reference>
+
+<reference anchor="ISO.14496-15.2014">
+  <front>
+    <title>Information technology — Coding of audio-visual objects — Part 15: Carriage of network abstraction layer (NAL) unit structured video in ISO base media file format</title>
+    <author>
+      <organization>International Organization for Standardization</organization>
+    </author>
+    <date month="" year="2014" />
+  </front>
+  <seriesInfo name="ISO" value="Standard 14496" />
+</reference>