HEVC interlaced reported as progressive; wrong DAR

[Peter Krefting]

Summary of the bug: A HEVC broadcast video stream encoded by the Makito encoder configured to use HEVC 1920×1080i video is identified as 1920×540p.

How to reproduce: The following captures were provided to us by the broadcaster, and I have been given permission to share them for the purpose of this bug report. They were created by the Makito encoder software:

• ​Sample 1
• ​Sample 2

Running ffprobe on the samples detects them as 1920×540p with a 32:9 DAR, and playing them with ffplay do display them in 32:9.

$ ffprobe /tmp/hevc-interlace-2.ts
ffprobe version N-119410-g33d0d1c672 Copyright (c) 2007-2025 the FFmpeg developers
  built with gcc 12 (Debian 12.2.0-14)
  configuration: 
  libavutil      60.  2.100 / 60.  2.100
  libavcodec     62.  2.100 / 62.  2.100
  libavformat    62.  0.102 / 62.  0.102
  libavdevice    62.  0.100 / 62.  0.100
  libavfilter    11.  0.100 / 11.  0.100
  libswscale      9.  0.100 /  9.  0.100
  libswresample   6.  0.100 /  6.  0.100
[hevc @ 0x55a556e149c0] PPS id out of range: 0
[hevc @ 0x55a556e149c0] Skipping invalid undecodable NALU: 39
[hevc @ 0x55a556e149c0] PPS id out of range: 0
[hevc @ 0x55a556e149c0] Skipping invalid undecodable NALU: 0
[hevc @ 0x55a556e149c0] PPS id out of range: 0
[hevc @ 0x55a556e149c0] Skipping invalid undecodable NALU: 39
[hevc @ 0x55a556e149c0] PPS id out of range: 0
[hevc @ 0x55a556e149c0] Skipping invalid undecodable NALU: 1
[hevc @ 0x55a556e149c0] PPS id out of range: 0
(...messages repeats...)
[mpegts @ 0x55a556e0ea00] PES packet size mismatch
[mpegts @ 0x55a556e0ea00] Packet corrupt (stream = 0, dts = 6953319369).
[mpegts @ 0x55a556e0ea00] PES packet size mismatch
[mpegts @ 0x55a556e0ea00] Packet corrupt (stream = 1, dts = 6953274618).
[mpegts @ 0x55a556e0ea00] PES packet size mismatch
[mpegts @ 0x55a556e0ea00] Packet corrupt (stream = 2, dts = 6953274618).
[mpegts @ 0x55a556e0ea00] PES packet size mismatch
[mpegts @ 0x55a556e0ea00] Packet corrupt (stream = 3, dts = 6953274614).
[mpegts @ 0x55a556e0ea00] PES packet size mismatch
[mpegts @ 0x55a556e0ea00] Packet corrupt (stream = 4, dts = 6953274614).
[mpegts @ 0x55a556e0ea00] PES packet size mismatch
[mpegts @ 0x55a556e0ea00] Packet corrupt (stream = 5, dts = 6953274614).
[mpegts @ 0x55a556e0ea00] PES packet size mismatch
[mpegts @ 0x55a556e0ea00] Packet corrupt (stream = 6, dts = 6953274622).
[mpegts @ 0x55a556e0ea00] PES packet size mismatch
[mpegts @ 0x55a556e0ea00] Packet corrupt (stream = 7, dts = 6953274618).
[mpegts @ 0x55a556e0ea00] PES packet size mismatch
[mpegts @ 0x55a556e0ea00] Packet corrupt (stream = 8, dts = 6953274614).
Input #0, mpegts, from '/tmp/hevc-interlace-2.ts':
  Duration: 00:01:01.53, start: 77197.593489, bitrate: 9267 kb/s
  Program 1 
    Metadata:
      service_name    : (redacted; run on sample to see)
      service_provider: (redacted; run on sample to see)
  Stream #0:0[0x79]: Video: hevc (Main 10) ([36][0][0][0] / 0x0024), yuv420p10le(tv, bt709, progressive), 1920x540 [SAR 1:1 DAR 32:9], 59.94 fps, 59.94 tbr, 90k tbn, Start-Time 77197.709s
  Stream #0:1[0xdd](und): Audio: aac (LC) ([15][0][0][0] / 0x000F), 48000 Hz, stereo, fltp, 129 kb/s, Start-Time 77197.594s
  Stream #0:2[0xde](und): Audio: aac (LC) ([15][0][0][0] / 0x000F), 48000 Hz, stereo, fltp, 129 kb/s, Start-Time 77197.594s
  Stream #0:3[0xdf](und): Audio: aac (LC) ([15][0][0][0] / 0x000F), 48000 Hz, stereo, fltp, 129 kb/s, Start-Time 77197.593s
  Stream #0:4[0xe0](und): Audio: aac (LC) ([15][0][0][0] / 0x000F), 48000 Hz, stereo, fltp, 129 kb/s, Start-Time 77197.593s
  Stream #0:5[0xe1](und): Audio: aac (LC) ([15][0][0][0] / 0x000F), 48000 Hz, stereo, fltp, 129 kb/s, Start-Time 77197.593s
  Stream #0:6[0xe2](und): Audio: aac (LC) ([15][0][0][0] / 0x000F), 48000 Hz, stereo, fltp, 129 kb/s, Start-Time 77197.594s
  Stream #0:7[0xe3](und): Audio: aac (LC) ([15][0][0][0] / 0x000F), 48000 Hz, stereo, fltp, 129 kb/s, Start-Time 77197.594s
  Stream #0:8[0xe4](und): Audio: aac (LC) ([15][0][0][0] / 0x000F), 48000 Hz, stereo, fltp, 129 kb/s, Start-Time 77197.593s

When feeding frames directly to the codec, it does look like the AV_FRAME_FLAG_INTERLACED bit is set correctly in the returned frame.

According to the provider of the sample, the Makito encoder (the version number was not indicated) is configured as follows:

• Codec Algorithm: HEVC/H.265
• Resolution: 1920×1080i
• GOP Size: 60
• Encoding Profile: Main 10
• Resizing: Scale
• Closed Captioning: on
• Chroma Subsampling: 4:2:0 10-bit
• Frame Rate: Automatic
• Transcode Source: System
• Rate Control: CBR
• Framing: IBBBBP
• Counting Mode: UTC Conversion
• Bitrate: 6000
• Aspect Ratio: Automatic
• Scene Change Detection: off
• Partial Image Skip: on
• Intra Refresh: off

[MasterQuestionable]

͏    ​https://trac.ffmpeg.org/ticket/11162#comment:3

͏    And 10bpc (bit-per-component) interlaced..??