[solved] Building tvheadend fails with ffmpeg-7.1.1

[Jimini]

Good day,

with the most current version of ffmpeg, building tvheadend leads to an error. Am I overlooking something or have I run into a bug?

With media-video/ffmpeg-6.1.2-r1 building media-tv/tvheadend-4.3_p20240618 works fine.

With media-video/ffmpeg-7.1.1 building media-tv/tvheadend-4.3_p20240618 fails with numerous errors with audio.c, like the following:

Code: Select all

src/transcoding/transcode/audio.c: In function '_audio_context_channel_layout':
src/transcoding/transcode/audio.c:87:38: error: 'AVCodecContext' has no member named 'channel_layout'; did you mean 'ch_layout'?
   87 |     uint64_t ilayout = self->iavctx->channel_layout;
      |                                      ^~~~~~~~~~~~~~
      |                                      ch_layout
src/transcoding/transcode/audio.c:94:21: error: implicit declaration of function 'av_get_channel_layout_nb_channels' [-Wimplicit-function-declaration]
   94 |         ichannels = av_get_channel_layout_nb_channels(ilayout);
      |                     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
src/transcoding/transcode/audio.c:106:9: error: implicit declaration of function 'av_get_channel_layout_string'; did you mean 'av_channel_layout_subset'? [-Wimplicit-function-declaration]
  106 |         av_get_channel_layout_string(obuf, sizeof(obuf), 0, olayout);
      |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
      |         av_channel_layout_subset
src/transcoding/transcode/audio.c: In function 'tvh_audio_context_open_encoder':
src/transcoding/transcode/audio.c:142:19: error: 'AVCodecContext' has no member named 'channel_layout'; did you mean 'ch_layout'?
  142 |     self->oavctx->channel_layout = _audio_context_channel_layout(self, opts);
      |                   ^~~~~~~~~~~~~~
      |                   ch_layout
src/transcoding/transcode/audio.c:143:24: error: 'AVCodecContext' has no member named 'channel_layout'; did you mean 'ch_layout'?
  143 |     if (!self->oavctx->channel_layout) {
      |                        ^~~~~~~~~~~~~~
      |                        ch_layout

Here is the relevant information - please let me know if something is missing:

Output of emerge --info '=media-tv/tvheadend-4.3_p20240618::gentoo': https://paste.gentoo.zip/3KSxLo9h
Output of emerge -pqv '=media-tv/tvheadend-4.3_p20240618::gentoo': https://paste.gentoo.zip/5b6N4ucS
build.log: https://paste.gentoo.zip/pjPt1NME
ebuild environment: https://paste.gentoo.zip/eOcanDJf

Kind regards
Jimini

[Hu]

This looks like you ran into media-tv/tvheadend-4.3_p20240618 fails to compile with media-video/ffmpeg-7.1.1. Ionen recently committed a change that hopefully helps.

[Jimini]

Thank you, Hu! When I created this thread, the bug report did not exist yet - but I can confirm, that the workaround seems to help, I just rebuilt tvheadend with ffmpeg-compat.

Kind regards
Jimini