From 73e7cb823d2534686d8240c9e13c32b5c31a1e74 Mon Sep 17 00:00:00 2001 From: Dimitri Podborski Date: Wed, 25 Mar 2026 16:35:58 -0700 Subject: [PATCH 1/4] will -> shall --- index.bs | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/index.bs b/index.bs index bcb431b..8a94469 100644 --- a/index.bs +++ b/index.bs @@ -235,7 +235,7 @@ AV1_video_descriptor() { -reserved_zeros - Will be set to zeroes. +reserved_zeros - Shall be set to zeroes. initial_presentation_delay_present - Indicates initial_presentation_delay_minus_one field is present. From b7b26b5565f1aedc8abfccb951e5d04fbdf15d5e Mon Sep 17 00:00:00 2001 From: Dimitri Podborski Date: Wed, 25 Mar 2026 16:36:31 -0700 Subject: [PATCH 2/4] hex code fix --- index.bs | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/index.bs b/index.bs index 8a94469..7084db6 100644 --- a/index.bs +++ b/index.bs @@ -276,7 +276,7 @@ Prior to carriage into PES, the AV1 open_bitstream_unit() is ```cpp ts_open_bitstream_unit(NumBytesInTsObu) { - uimsbf(24) obu_start_code; /* equal to 0x01 */ + uimsbf(24) obu_start_code; /* equal to 0x000001 */ NumBytesInObu = 0 for( i = 2; i < NumBytesInTsObu; i++ ) { if( i + 2 < NumBytesInTsObu && nextbits(24) == 0x000003 ) { From 0188fbc65a7d18ef59132e3f9b7c2a9c22f8b690 Mon Sep 17 00:00:00 2001 From: Dimitri Podborski Date: Thu, 26 Mar 2026 12:39:24 -0700 Subject: [PATCH 3/4] attempt on HDR definition rewrite based on the feedback --- index.bs | 26 ++++++++++++++++++-------- 1 file changed, 18 insertions(+), 8 deletions(-) diff --git a/index.bs b/index.bs index 7084db6..ef3b751 100644 --- a/index.bs +++ b/index.bs @@ -26,22 +26,32 @@ Max ToC Depth: 3 "publisher": "ISO" }, "BT-1886": { - "title": "Recommendation BT.1886 : Reference electro-optical transfer function for flat panel displays used in HDTV studio production", + "title": "Recommendation ITU-R BT.1886-0 (2011), Reference electro-optical transfer function for flat panel displays used in HDTV studio production", "href": "https://www.itu.int/rec/R-REC-BT.1886", "status": "Recommendation", - "publisher": "ITU" + "publisher": "ITU", + "date": "2011" }, "BT-709": { - "title": "Recommendation BT.709 : Parameter values for the HDTV standards for production and international programme exchange", + "title": "Recommendation ITU-R BT.709-6 (2015), Parameter values for the HDTV standards for production and international programme exchange", "href": "https://www.itu.int/rec/R-REC-BT.709", "status": "Recommendation", - "publisher": "ITU" + "publisher": "ITU", + "date": "2015" + }, + "BT-2100": { + "title": "Recommendation ITU-R BT.2100-2 (2018), Image parameter values for high dynamic range television for use in production and international programme exchange", + "href": "https://www.itu.int/rec/R-REC-BT.2100", + "status": "Recommendation", + "publisher": "ITU", + "date": "2018" }, "BT-2020": { - "title": "Recommendation BT.2020 : Parameter values for ultra-high definition television systems for production and international programme exchange", + "title": "Recommendation ITU-R BT.2020-2 (2015), Parameter values for ultra-high definition television systems for production and international programme exchange", "href": "https://www.itu.int/rec/R-REC-BT.2020", "status": "Recommendation", - "publisher": "ITU" + "publisher": "ITU", + "date": "2015" } } @@ -208,7 +218,7 @@ AV1_video_descriptor() { seq_tier_0, twelve_bit, monochrome, chroma_subsampling_x, chroma_subsampling_y, chroma_sample_position - These fields shall be coded according to the same semantics when they are present. If they are not present, they will be coded using the value inferred by the semantics. -hdr_wcg_idc - The value of this syntax element indicates the presence or absence of high dynamic range (HDR) and/or wide color gamut (WCG) video components in the associated PID according to the table below. HDR is defined to be video that has high dynamic range if the video stream EOTF is higher than the reference EOTF defined in [[!BT-1886]]. WCG is defined to be video that is coded using colour primaries with a colour gamut not contained within [[!BT-709]]. +hdr_wcg_idc - The value of this syntax element indicates the presence or absence of high dynamic range (HDR) and/or wide color gamut (WCG) video components in the associated PID according to the table below. HDR is defined to be video that uses an HDR transfer function, such as those defined in [[!BT-2100]] (PQ or HLG). WCG is defined to be video that is coded using colour primaries with a colour gamut not contained within [[!BT-709]]. @@ -227,7 +237,7 @@ AV1_video_descriptor() { - + From 1090a21286bd4f0b1bc48abe9ef410c29ced9810 Mon Sep 17 00:00:00 2001 From: Dimitri Podborski Date: Thu, 26 Mar 2026 12:53:29 -0700 Subject: [PATCH 4/4] remove redundant date --- index.bs | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/index.bs b/index.bs index ef3b751..1542837 100644 --- a/index.bs +++ b/index.bs @@ -26,28 +26,28 @@ Max ToC Depth: 3 "publisher": "ISO" }, "BT-1886": { - "title": "Recommendation ITU-R BT.1886-0 (2011), Reference electro-optical transfer function for flat panel displays used in HDTV studio production", + "title": "Recommendation ITU-R BT.1886-0, Reference electro-optical transfer function for flat panel displays used in HDTV studio production", "href": "https://www.itu.int/rec/R-REC-BT.1886", "status": "Recommendation", "publisher": "ITU", "date": "2011" }, "BT-709": { - "title": "Recommendation ITU-R BT.709-6 (2015), Parameter values for the HDTV standards for production and international programme exchange", + "title": "Recommendation ITU-R BT.709-6, Parameter values for the HDTV standards for production and international programme exchange", "href": "https://www.itu.int/rec/R-REC-BT.709", "status": "Recommendation", "publisher": "ITU", "date": "2015" }, "BT-2100": { - "title": "Recommendation ITU-R BT.2100-2 (2018), Image parameter values for high dynamic range television for use in production and international programme exchange", + "title": "Recommendation ITU-R BT.2100-2, Image parameter values for high dynamic range television for use in production and international programme exchange", "href": "https://www.itu.int/rec/R-REC-BT.2100", "status": "Recommendation", "publisher": "ITU", "date": "2018" }, "BT-2020": { - "title": "Recommendation ITU-R BT.2020-2 (2015), Parameter values for ultra-high definition television systems for production and international programme exchange", + "title": "Recommendation ITU-R BT.2020-2, Parameter values for ultra-high definition television systems for production and international programme exchange", "href": "https://www.itu.int/rec/R-REC-BT.2020", "status": "Recommendation", "publisher": "ITU",
2Both HDR and WCG are to be indicated in the streamThe video stream is both HDR and WCG
3