[FFmpeg-trac] #11305(avfilter:new): filter_complex/trim destroys HDR metadata

[FFmpeg]

#11305: filter_complex/trim destroys HDR metadata
-------------------------------------+-------------------------------------
             Reporter:  zealot0630   |                    Owner:  (none)
                 Type:  defect       |                   Status:  new
             Priority:  important    |                Component:  avfilter
              Version:  7.0          |               Resolution:
             Keywords:               |               Blocked By:
  filter_complex hdr                 |
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
Description changed by zealot0630:

Old description:

> Summary of the bug:
> How to reproduce:
> {{{
> ffmpeg.exe -y -hide_banner \
> -i "2024-11-17 16-01-22.mkv" -filter_complex \
> [0:0]trim=start=00\\:00\\:00\\.000:end=00\\:00\\:03\\.000[ov0];\
> [0:1]atrim=start=00\\:00\\:00\\.000:end=00\\:00\\:03\\.000[oa0] \
> -map [ov0] -map [oa0] -map_metadata 0 \
> -c:v:0 hevc_nvenc -c:a:0 aac \
> -f mp4 "output.mp4"
> }}}
>
> ffmpeg outputs:
>
> {{{
> Input #0, matroska,webm, from '2024-11-17 16-01-22.mkv':
>   Metadata:
>     ENCODER         : Lavf61.1.100
>   Duration: 00:24:43.47, start: 0.000000, bitrate: 70103 kb/s
>   Stream #0:0: Video: hevc (Main 10), yuv420p10le(pc,
> bt2020nc/bt2020/smpte2084), 3840x2160 [SAR 1:1 DAR 16:9], 60 fps, 60 tbr,
> 1k tbn
>       Metadata:
>         DURATION        : 00:24:43.467000000
>       Side data:
>         Content Light Level Metadata, MaxCLL=1000, MaxFALL=1000
>         Mastering Display Metadata, has_primaries:1 has_luminance:1
> r(0.6800,0.3200) g(0.2650,0.6900) b(0.1500 0.0600) wp(0.3127, 0.3290)
> min_luminance=0.000000, max_luminance=1000.000000
>   Stream #0:1: Audio: aac (LC), 48000 Hz, stereo, fltp
>       Metadata:
>         title           : Track1
>         DURATION        : 00:24:43.413000000
> Stream mapping:
>   Stream #0:0 (hevc) -> trim:default
>   Stream #0:1 (aac) -> atrim:default
>   trim:default -> Stream #0:0 (hevc_nvenc)
>   atrim:default -> Stream #0:1 (aac)
> Press [q] to stop, [?] for help
> Output #0, mp4, to 'output.mp4':
>   Metadata:
>     encoder         : Lavf61.1.100
>   Stream #0:0: Video: hevc (Main 10) (hev1 / 0x31766568), p010le(pc,
> bt2020nc/bt2020/smpte2084, progressive), 3840x2160 [SAR 1:1 DAR 16:9],
> q=2-31, 2000 kb/s, 60 fps, 15360 tbn
>       Metadata:
>         encoder         : Lavc61.3.100 hevc_nvenc
>       Side data:
>         cpb: bitrate max/min/avg: 0/0/2000000 buffer size: 4000000
> vbv_delay: N/A
>   Stream #0:1: Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo,
> fltp, 128 kb/s
>       Metadata:
>         encoder         : Lavc61.3.100 aac
> [out#0/mp4 @ 000002b8050fe6c0] video:149KiB audio:49KiB subtitle:0KiB
> other streams:0KiB global headers:0KiB muxing overhead: 3.133152%
> frame=  180 fps= 72 q=41.0 Lsize=     203KiB time=00:00:02.95 bitrate=
> 565.1kbits/s speed=1.18x
> [aac @ 000002b805396a00] Qavg: 1094.995
> }}}
>
> Content Light Level Metadata and Mastering Display Metadata are lost
> after encoding.

New description:

 Summary of the bug:
 How to reproduce:
 {{{
 ffmpeg -y -hide_banner \
 -i "2024-11-17 16-01-22.mkv" -filter_complex \
 '[0:0]trim=start=00\\:00\\:00\\.000:end=00\\:00\\:03\\.000[ov0];
 [0:1]atrim=start=00\\:00\\:00\\.000:end=00\\:00\\:03\\.000[oa0]' \
 -map "[ov0]" -map "[oa0]" -map_metadata 0 \
 -c:v:0 hevc_nvenc -c:a:0 aac \
 -f mp4 "output.mp4"
 }}}

 ffmpeg outputs:

 {{{
 Input #0, matroska,webm, from '2024-11-17 16-01-22.mkv':
   Metadata:
     ENCODER         : Lavf61.1.100
   Duration: 00:24:43.47, start: 0.000000, bitrate: 70103 kb/s
   Stream #0:0: Video: hevc (Main 10), yuv420p10le(pc,
 bt2020nc/bt2020/smpte2084), 3840x2160 [SAR 1:1 DAR 16:9], 60 fps, 60 tbr,
 1k tbn
       Metadata:
         DURATION        : 00:24:43.467000000
       Side data:
         Content Light Level Metadata, MaxCLL=1000, MaxFALL=1000
         Mastering Display Metadata, has_primaries:1 has_luminance:1
 r(0.6800,0.3200) g(0.2650,0.6900) b(0.1500 0.0600) wp(0.3127, 0.3290)
 min_luminance=0.000000, max_luminance=1000.000000
   Stream #0:1: Audio: aac (LC), 48000 Hz, stereo, fltp
       Metadata:
         title           : Track1
         DURATION        : 00:24:43.413000000
 Stream mapping:
   Stream #0:0 (hevc) -> trim:default
   Stream #0:1 (aac) -> atrim:default
   trim:default -> Stream #0:0 (hevc_nvenc)
   atrim:default -> Stream #0:1 (aac)
 Press [q] to stop, [?] for help
 Output #0, mp4, to 'output.mp4':
   Metadata:
     encoder         : Lavf61.1.100
   Stream #0:0: Video: hevc (Main 10) (hev1 / 0x31766568), p010le(pc,
 bt2020nc/bt2020/smpte2084, progressive), 3840x2160 [SAR 1:1 DAR 16:9],
 q=2-31, 2000 kb/s, 60 fps, 15360 tbn
       Metadata:
         encoder         : Lavc61.3.100 hevc_nvenc
       Side data:
         cpb: bitrate max/min/avg: 0/0/2000000 buffer size: 4000000
 vbv_delay: N/A
   Stream #0:1: Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo,
 fltp, 128 kb/s
       Metadata:
         encoder         : Lavc61.3.100 aac
 [out#0/mp4 @ 000002b8050fe6c0] video:149KiB audio:49KiB subtitle:0KiB
 other streams:0KiB global headers:0KiB muxing overhead: 3.133152%
 frame=  180 fps= 72 q=41.0 Lsize=     203KiB time=00:00:02.95 bitrate=
 565.1kbits/s speed=1.18x
 [aac @ 000002b805396a00] Qavg: 1094.995
 }}}

 Content Light Level Metadata and Mastering Display Metadata are lost after
 encoding.

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Ticket URL: <https://trac.ffmpeg.org/ticket/11305#comment:1>
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