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avfilter/avfilter: add a side_data field to AVFilterLink

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This will be used to propagate global side data through the filterchain.

Signed-off-by: James Almer <jamrial@gmail.com>
This commit is contained in:
James Almer
2024-03-25 09:27:21 -03:00
parent 91d96dc8dd
commit ef1cb1c9c8
4 changed files with 25 additions and 3 deletions
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18
libavfilter/avfilter.c
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@@ -206,6 +206,7 @@ static void link_free(AVFilterLink **link)
ff_framequeue_free(&li->fifo);
ff_frame_pool_uninit(&li->frame_pool);
av_channel_layout_uninit(&(*link)->ch_layout);
av_frame_side_data_free(&(*link)->side_data, &(*link)->nb_side_data);
av_buffer_unref(&li->l.hw_frames_ctx);
@@ -376,7 +377,22 @@ int ff_filter_config_links(AVFilterContext *filter)
"callbacks on all outputs\n");
return AVERROR(EINVAL);
}
} else if ((ret = config_link(link)) < 0) {
}
/* Copy side data before link->srcpad->config_props() is called, so the filter
* may remove it for the next filter in the chain */
if (inlink && inlink->nb_side_data && !link->nb_side_data) {
for (i = 0; i < inlink->nb_side_data; i++) {
ret = av_frame_side_data_clone(&link->side_data, &link->nb_side_data,
inlink->side_data[i], 0);
if (ret < 0) {
av_frame_side_data_free(&link->side_data, &link->nb_side_data);
return ret;
}
}
}
if (config_link && (ret = config_link(link)) < 0) {
av_log(link->src, AV_LOG_ERROR,
"Failed to configure output pad on %s\n",
link->src->name);