static GstCaps * gst_vaapiencode_get_caps (GstVideoEncoder * venc, GstCaps * filter) { GstVaapiEncode *const encode = GST_VAAPIENCODE_CAST (venc); GstCaps *result; ensure_allowed_sinkpad_caps (encode); result = gst_video_encoder_proxy_getcaps (venc, encode->allowed_sinkpad_caps, filter); GST_DEBUG_OBJECT (venc, "Negotiated sink caps %" GST_PTR_FORMAT, result); return result; }
static GstCaps * gst_mfxpostproc_transform_caps_impl (GstBaseTransform * trans, GstPadDirection direction, GstCaps * caps) { GstMfxPostproc *const vpp = GST_MFXPOSTPROC (trans); GstVideoInfo vi, peer_vi; GstVideoFormat out_format; GstCaps *out_caps, *peer_caps; GstMfxCapsFeature feature; const gchar *feature_str; guint width, height; /* Generate the sink pad caps, that could be fixated afterwards */ if (direction == GST_PAD_SRC) { if (!ensure_allowed_sinkpad_caps (vpp)) return NULL; return gst_caps_ref (vpp->allowed_sinkpad_caps); } /* Generate complete set of src pad caps if non-fixated sink pad * caps are provided */ if (!gst_caps_is_fixed (caps)) { if (!ensure_allowed_srcpad_caps (vpp)) return NULL; return gst_caps_ref (vpp->allowed_srcpad_caps); } /* Generate the expected src pad caps, from the current fixated * sink pad caps */ if (!gst_video_info_from_caps (&vi, caps)) return NULL; if (vpp->deinterlace_mode) GST_VIDEO_INFO_INTERLACE_MODE (&vi) = GST_VIDEO_INTERLACE_MODE_PROGRESSIVE; /* Update size from user-specified parameters */ find_best_size (vpp, &vi, &width, &height); /* Update format from user-specified parameters */ peer_caps = gst_pad_peer_query_caps (GST_BASE_TRANSFORM_SRC_PAD (trans), vpp->allowed_srcpad_caps); if (gst_caps_is_any (peer_caps) || gst_caps_is_empty (peer_caps)) return peer_caps; if (!gst_caps_is_fixed (peer_caps)) peer_caps = gst_caps_fixate (peer_caps); gst_video_info_from_caps (&peer_vi, peer_caps); out_format = GST_VIDEO_INFO_FPS_N (&peer_vi); /* Update width and height from the caps */ if (GST_VIDEO_INFO_HEIGHT (&peer_vi) != 1 && GST_VIDEO_INFO_WIDTH (&peer_vi) != 1) find_best_size(vpp, &peer_vi, &width, &height); if (vpp->format != DEFAULT_FORMAT) out_format = vpp->format; if (vpp->fps_n) { GST_VIDEO_INFO_FPS_N (&vi) = vpp->fps_n; GST_VIDEO_INFO_FPS_D (&vi) = vpp->fps_d; vpp->field_duration = gst_util_uint64_scale (GST_SECOND, vpp->fps_d, vpp->fps_n); if (DEFAULT_FRC_ALG == vpp->alg) vpp->alg = GST_MFX_FRC_PRESERVE_TIMESTAMP; } if (peer_caps) gst_caps_unref (peer_caps); feature = gst_mfx_find_preferred_caps_feature (GST_BASE_TRANSFORM_SRC_PAD (trans), &out_format); gst_video_info_change_format (&vi, out_format, width, height); out_caps = gst_video_info_to_caps (&vi); if (!out_caps) return NULL; if (feature) { feature_str = gst_mfx_caps_feature_to_string (feature); if (feature_str) gst_caps_set_features (out_caps, 0, gst_caps_features_new (feature_str, NULL)); } if (vpp->format != out_format) vpp->format = out_format; return out_caps; }