Found 4 records.

Status: Verified (4)

RFC 8216, "HTTP Live Streaming", August 2017

Errata ID: 7283
Status: Verified
Type: Technical
Publication Format(s) : TEXT
Reported By: Alexander Batischev
Date Reported: 2022-12-22
Verifier Name: Eliot Lear (ISE)
Date Verified: 2023-01-04

Section 8.10 says:

   #EXTM3U
   ...
   #EXT-X-DATERANGE:ID="splice-6FFFFFF0",START-DATE="2014-03-05T11:
   15:00Z",PLANNED-DURATION=59.993,SCTE35-OUT=0xFC002F0000000000FF0
   00014056FFFFFF000E011622DCAFF000052636200000000000A0008029896F50
   000008700000000

   ... Media Segment declarations for 60s worth of media

   #EXT-X-DATERANGE:ID="splice-6FFFFFF0",DURATION=59.993,SCTE35-IN=
   0xFC002A0000000000FF00000F056FFFFFF000401162802E6100000000000A00
   08029896F50000008700000000
   ...

It should say:

   #EXTM3U
   ...
   #EXT-X-DATERANGE:ID="splice-6FFFFFF0",START-DATE="2014-03-05T11:
   15:00Z",PLANNED-DURATION=59.993,SCTE35-OUT=0xFC002F000000000000F
   F000014056FFFFFF000E081622DCAFF000052636200000000000A0008029896F
   50000008700000000

   ... Media Segment declarations for 60s worth of media

   #EXT-X-DATERANGE:ID="splice-6FFFFFF0",DURATION=59.993,SCTE35-IN=
   0xFC002A000000000000FF00000F056FFFFFF000408162802E6100000000000A
   0008029896F50000008700000000
   ...

Notes:

Both examples contain the same two mistakes. Let's look at the first example and find the first mistake:

1. 12 bits at offset 12 are section_length, and they equal 0x02F. This indicates that the rest of the section should take up 47 bytes, but actually there is only 46 bytes;
2. 12 bits at offset 92 are splice_command_length, and they equal 0x405. This indicates that there should be 1029 bytes after splice_command_type, which is clearly wrong since there are only 20 bytes there;
3. 8 bits at offset 104 are splice_command_type, and they equal 0x6F. This is not a valid command type. Since this is an SCTE35-IN tag, it's a splice_insert() event and we expect to see 0x05 in those bits. This conjecture is supported by the fact that 0x6F appears to be the first byte of the splice_event_id field.

It looks like a byte is missing somewhere between bit positions 24 and 92. In the corrected text, I took the liberty of inserting 0x00 at bit offset 24. This changes the section length to the declared 47 bytes; splice_command_length becomes 0x14 which is the expected 20 bytes; and splice_command_type becomes 0x05 which is the expected splice_insert() type. Accidentally this also changes pts_adjustment from 0xFF to 0x00; this shouldn't hurt because we don't know what PTSes the HLS segments contain, anyway.

With this fix applied, we can see the second mistake: the bit at offset 168 is time_specified_flag of the splice_time() contained within splice_insert(), and it's zero. This implies that there is no PTS inside splice_time(), which is clearly wrong, since the #EXT-X-DATERANGE displays the START-DATE. In the corrected text, I flipped this bit to 1. Again, without knowing the PTSes inside the segments, I can't tell if this gives us a correct pts_time, but at least the break_duration() now gives expected duration of 59.993 seconds.

The second example contains the same two mistakes, and the corrected text contains the same two fixes:

1. at bit offset 24, a new 0x00 byte is inserted;
2. at bit offset 168, zero bit is flipped to one.

Errata ID: 5158
Status: Verified
Type: Editorial
Publication Format(s) : TEXT
Reported By: Daniel Tashjian
Date Reported: 2017-10-17
Verifier Name: Adrian Farrel
Date Verified: 2018-04-11

Section 4.3.4.1 says:

The value is a quoted-string that specifies an ordered, backslash-
separated ("/") list of parameters.

It should say:

The value is a quoted-string that specifies an ordered, forward slash-
separated ("/") list of parameters.

Notes:

Confirmed by authors that this is a forward slash.

Errata ID: 5263
Status: Verified
Type: Editorial
Publication Format(s) : TEXT
Reported By: Sebastian Hubbard
Date Reported: 2018-02-20
Verifier Name: Adrian Farrel
Date Verified: 2018-04-08

Section 12.2 says:

   [SampleEnc]
              Apple Inc., "MPEG-2 Stream Encryption Format for HTTP Live
              Streaming",
              <https://developer.apple.com/library/ios/documentation/
              AudioVideo/Conceptual/HLS_Sample_Encryption/>.

It should say:

   [SampleEnc]
              Apple Inc., "MPEG-2 Stream Encryption Format for HTTP Live
              Streaming",
              <https://developer.apple.com/library/content/
              documentation/AudioVideo/Conceptual/HLS_Sample_Encryption/
              Encryption/Encryption.html>.

Notes:

The [SampleEnc] reference is currently a broken link.

Errata ID: 6430
Status: Verified
Type: Editorial
Publication Format(s) : TEXT
Reported By: Ahmet Katranci
Date Reported: 2021-02-14
Verifier Name: Adrian Farrel
Date Verified: 2021-02-16

Section 11.2 says:

[M3U]      Nullsoft, Inc., "The M3U Playlist format, originally
           invented for the Winamp media player",
           <https://en.wikipedia.org/w/
           index.php?title=M3U7amp;oldid=786631666>.

It should say:

[M3U]      "M3U (MP3 URL)", <https://en.wikipedia.org/wiki/M3U>.

Notes:

The original reference is to an archived page, and the reference title includes subjective opinion about the reference.
The new reference is current, stable, and avoids opinion.

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