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TEV/TAV: SSF-TC impl

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minjaesong
2025-11-06 01:18:19 +09:00
parent af3679921d
commit 00c882aa8d
7 changed files with 403 additions and 118 deletions
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8
terranmon.txt
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@@ -818,7 +818,7 @@ When SSF is interleaved with MP2 audio, the payload must be inserted in-between
## SSF Packet Structure
uint24 Subtitle object ID (used to specify target subtitle object)
uint64 Timecode in nanoseconds (only present for SSF-TC format; regular SSF must not write these bytes)
uint64 Timecode in nanoseconds (only present on SSF-TC format; regular SSF must not write these bytes)
uint8 opcode
0x00 = <argument terminator>, is NOP when used here
0x01 = show (arguments: UTF-8 text)
@@ -854,7 +854,7 @@ When KSF is interleaved with MP2 audio, the payload must be inserted in-between
on appropriate timings.
uint24 Subtitle object ID (used to specify target subtitle object)
uint64 Timecode in nanoseconds (only present for KSF-TC format; regular KSF must not write these bytes)
uint64 Timecode in nanoseconds (only present on KSF-TC format; regular KSF must not write these bytes)
uint8 opcode
<definition opcodes>
0x00 = <argument terminator>, is NOP when used here
@@ -1012,12 +1012,14 @@ transmission capability, and region-of-interest coding.
1. TAV Extended header (if any)
2. Standard metadata payloads (if any)
3. SSF-TC/KSF-TC packets (if any)
When time-coded subtitles are used, the entire subtitle bytes must precede the first video frame.
Think of it as tacking the whole subtitle file before the actual video.
Frame group:
1. TC Packet (0xFD) or Next TAV File (0x1F) [mutually exclusive!]
2. Loop point packet (if any)
3. Audio packets (if any)
4. Subtitle packets (if any)
4. Subtitle packets (if any) [mutually exclusive with SSF-TC/KSF-TC packets]
5. Main video packets (0x10-0x1E)
6. Multiplexed video packets (0x70-7F; if any)