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transcodebin: force decoding if a filter is defined

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Filter operates on raw data so don't allow decodebin to produce
encoded data if one is defined.

My use case here is keeping the video stream untouched but apply a filter
on the audio one, while keeping the same audio format.
This commit is contained in:
Guillaume Desmottes 2020-02-27 17:16:45 +05:30 committed by GStreamer Merge Bot
parent 4b6164339f
commit de4ea94766
1 changed files with 20 additions and 4 deletions
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22
gst/transcode/gsttranscodebin.c
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@ -306,13 +306,29 @@ make_decodebin (GstTranscodeBin * self)
gst_encoding_container_profile_get_profiles
(GST_ENCODING_CONTAINER_PROFILE (self->profile)); tmp;
tmp = tmp->next) {
GstCaps *restrictions =
gst_encoding_profile_get_restriction (tmp->data);
GstEncodingProfile *profile = tmp->data;
GstCaps *restrictions;
restrictions = gst_encoding_profile_get_restriction (profile);
if (!restrictions || gst_caps_is_any (restrictions)) {
GstCaps *encodecaps = gst_encoding_profile_get_format (tmp->data);
GstCaps *encodecaps = gst_encoding_profile_get_format (profile);
GstElement *filter = NULL;
/* Filter operates on raw data so don't allow decodebin to produce
* encoded data if one is defined. */
if (GST_IS_ENCODING_VIDEO_PROFILE (profile) && self->video_filter)
filter = self->video_filter;
else if (GST_IS_ENCODING_AUDIO_PROFILE (profile)
&& self->audio_filter)
filter = self->audio_filter;
if (!filter) {
GST_DEBUG_OBJECT (self,
"adding %" GST_PTR_FORMAT " as output caps to decodebin",
encodecaps);
gst_caps_append (decodecaps, encodecaps);
}
} else {
gst_caps_unref (restrictions);
}