Advanced B-Frame compatibility

[shogo4405]

Description & motivation

Fix invalid timestamps messages from ffplay

[flv @ 0x13b716e20] Negative cts, previous timestamps might be wrong.
[flv @ 0x13b716e20] Invalid timestamps stream=1, pts=3168, dts=3201, size=176
[flv @ 0x13b716e20] Invalid timestamps stream=1, pts=3235, dts=3268, size=158
[flv @ 0x13b716e20] Invalid timestamps stream=1, pts=3301, dts=3334, size=192
[flv @ 0x13b716e20] Invalid timestamps stream=1, pts=3368, dts=3401, size=273

Type of change

Please delete options that are not relevant.

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)

Screenshots: