/* * gstvaapipostprocutil.h - VA-API video post processing utilities * * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu> * Copyright (C) 2005-2012 David Schleef <ds@schleef.org> * Copyright (C) 2016 Intel Corporation * Author: Gwenole Beauchesne <gwenole.beauchesne@intel.com> * Author: Victor Jaquez <victorx.jaquez@intel.com> * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public License * as published by the Free Software Foundation; either version 2.1 * of the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this program; if not, write to the Free * Software Foundation, Inc., 51 Franklin Street, Fifth Floor, * Boston, MA 02110-1301 USA */ #include <gst/vaapi/gstvaapifilter.h> #include "gstvaapipostprocutil.h" #include "gstvaapipluginutil.h" #define GST_CAT_DEFAULT (GST_VAAPI_PLUGIN_BASE (postproc)->debug_category) /* if format property is set */ static void _transform_format (GstVaapiPostproc * postproc, GstCapsFeatures * features, GstStructure * structure) { GValue value = G_VALUE_INIT; if (postproc->format == DEFAULT_FORMAT) return; if (!gst_caps_features_is_equal (features, GST_CAPS_FEATURES_MEMORY_SYSTEM_MEMORY) && !gst_caps_features_contains (features, GST_CAPS_FEATURE_MEMORY_VAAPI_SURFACE)) return; if (!gst_vaapi_value_set_format (&value, postproc->format)) return; gst_structure_set_value (structure, "format", &value); g_value_unset (&value); } static void _set_int (GValue * value, gint val) { g_value_init (value, G_TYPE_INT); g_value_set_int (value, val); } static void _set_int_range (GValue * value) { g_value_init (value, GST_TYPE_INT_RANGE); gst_value_set_int_range (value, 1, G_MAXINT); } static void _transform_frame_size (GstVaapiPostproc * postproc, GstStructure * structure) { GValue width = G_VALUE_INIT; GValue height = G_VALUE_INIT; if (postproc->width && postproc->height) { _set_int (&width, postproc->width); _set_int (&height, postproc->height); } else if (postproc->width) { _set_int (&width, postproc->width); _set_int_range (&height); } else if (postproc->height) { _set_int_range (&width); _set_int (&height, postproc->height); } else { _set_int_range (&width); _set_int_range (&height); } gst_structure_set_value (structure, "width", &width); gst_structure_set_value (structure, "height", &height); } /** * gst_vaapipostproc_transform_srccaps: * @postproc: a #GstVaapiPostproc instance * * Early apply transformation of the src pad caps according to the set * properties. * * Returns: A new allocated #GstCaps **/ GstCaps * gst_vaapipostproc_transform_srccaps (GstVaapiPostproc * postproc) { GstCaps *out_caps; GstStructure *structure; GstCapsFeatures *features; gint i, n; out_caps = gst_caps_new_empty (); n = gst_caps_get_size (postproc->allowed_srcpad_caps); for (i = 0; i < n; i++) { structure = gst_caps_get_structure (postproc->allowed_srcpad_caps, i); features = gst_caps_get_features (postproc->allowed_srcpad_caps, i); /* make copy */ structure = gst_structure_copy (structure); if (postproc->keep_aspect) gst_structure_set (structure, "pixel-aspect-ratio", GST_TYPE_FRACTION, 1, 1, NULL); _transform_format (postproc, features, structure); _transform_frame_size (postproc, structure); gst_caps_append_structure_full (out_caps, structure, gst_caps_features_copy (features)); } return out_caps; } gboolean is_deinterlace_enabled (GstVaapiPostproc * postproc, GstVideoInfo * vip) { gboolean deinterlace; switch (postproc->deinterlace_mode) { case GST_VAAPI_DEINTERLACE_MODE_AUTO: deinterlace = GST_VIDEO_INFO_IS_INTERLACED (vip); break; case GST_VAAPI_DEINTERLACE_MODE_INTERLACED: deinterlace = TRUE; break; default: deinterlace = FALSE; break; } return deinterlace; } static gboolean _fixate_frame_size (GstVaapiPostproc * postproc, GstVideoInfo * vinfo, GstStructure * outs) { const GValue *to_par; GValue tpar = G_VALUE_INIT; gboolean ret; ret = TRUE; to_par = gst_structure_get_value (outs, "pixel-aspect-ratio"); if (!to_par) { g_value_init (&tpar, GST_TYPE_FRACTION_RANGE); gst_value_set_fraction_range_full (&tpar, 1, G_MAXINT, G_MAXINT, 1); to_par = &tpar; } /* we have both PAR but they might not be fixated */ { gint from_w, from_h, from_par_n, from_par_d, to_par_n, to_par_d; gint w = 0, h = 0; gint from_dar_n, from_dar_d; gint num, den; from_par_n = GST_VIDEO_INFO_PAR_N (vinfo); from_par_d = GST_VIDEO_INFO_PAR_D (vinfo); from_w = GST_VIDEO_INFO_WIDTH (vinfo); from_h = GST_VIDEO_INFO_HEIGHT (vinfo); if (postproc->has_vpp) { /* adjust for crop settings */ from_w -= postproc->crop_left + postproc->crop_right; from_h -= postproc->crop_top + postproc->crop_bottom; /* compensate for rotation if needed */ switch (gst_vaapi_filter_get_video_direction (postproc->filter)) { case GST_VIDEO_ORIENTATION_90R: case GST_VIDEO_ORIENTATION_90L: case GST_VIDEO_ORIENTATION_UL_LR: case GST_VIDEO_ORIENTATION_UR_LL: G_PRIMITIVE_SWAP (gint, from_w, from_h); G_PRIMITIVE_SWAP (gint, from_par_n, from_par_d); default: break; } } gst_structure_get_int (outs, "width", &w); gst_structure_get_int (outs, "height", &h); /* if both width and height are already fixed, we can't do anything * about it anymore */ if (w && h) { guint n, d; GST_DEBUG_OBJECT (postproc, "dimensions already set to %dx%d, not fixating", w, h); if (!gst_value_is_fixed (to_par)) { if (gst_video_calculate_display_ratio (&n, &d, from_w, from_h, from_par_n, from_par_d, w, h)) { GST_DEBUG_OBJECT (postproc, "fixating to_par to %dx%d", n, d); if (gst_structure_has_field (outs, "pixel-aspect-ratio")) gst_structure_fixate_field_nearest_fraction (outs, "pixel-aspect-ratio", n, d); else if (n != d) gst_structure_set (outs, "pixel-aspect-ratio", GST_TYPE_FRACTION, n, d, NULL); } } goto done; } /* Calculate input DAR */ if (!gst_util_fraction_multiply (from_w, from_h, from_par_n, from_par_d, &from_dar_n, &from_dar_d)) goto overflow_error; GST_DEBUG_OBJECT (postproc, "Input DAR is %d/%d", from_dar_n, from_dar_d); /* If either width or height are fixed there's not much we * can do either except choosing a height or width and PAR * that matches the DAR as good as possible */ if (h) { GstStructure *tmp; gint set_w, set_par_n, set_par_d; GST_DEBUG_OBJECT (postproc, "height is fixed (%d)", h); /* If the PAR is fixed too, there's not much to do * except choosing the width that is nearest to the * width with the same DAR */ if (gst_value_is_fixed (to_par)) { to_par_n = gst_value_get_fraction_numerator (to_par); to_par_d = gst_value_get_fraction_denominator (to_par); GST_DEBUG_OBJECT (postproc, "PAR is fixed %d/%d", to_par_n, to_par_d); if (!gst_util_fraction_multiply (from_dar_n, from_dar_d, to_par_d, to_par_n, &num, &den)) goto overflow_error; w = (guint) gst_util_uint64_scale_int (h, num, den); gst_structure_fixate_field_nearest_int (outs, "width", w); goto done; } /* The PAR is not fixed and it's quite likely that we can set * an arbitrary PAR. */ /* Check if we can keep the input width */ tmp = gst_structure_copy (outs); gst_structure_fixate_field_nearest_int (tmp, "width", from_w); gst_structure_get_int (tmp, "width", &set_w); /* Might have failed but try to keep the DAR nonetheless by * adjusting the PAR */ if (!gst_util_fraction_multiply (from_dar_n, from_dar_d, h, set_w, &to_par_n, &to_par_d)) { gst_structure_free (tmp); goto overflow_error; } if (!gst_structure_has_field (tmp, "pixel-aspect-ratio")) gst_structure_set_value (tmp, "pixel-aspect-ratio", to_par); gst_structure_fixate_field_nearest_fraction (tmp, "pixel-aspect-ratio", to_par_n, to_par_d); gst_structure_get_fraction (tmp, "pixel-aspect-ratio", &set_par_n, &set_par_d); gst_structure_free (tmp); /* Check if the adjusted PAR is accepted */ if (set_par_n == to_par_n && set_par_d == to_par_d) { if (gst_structure_has_field (outs, "pixel-aspect-ratio") || set_par_n != set_par_d) gst_structure_set (outs, "width", G_TYPE_INT, set_w, "pixel-aspect-ratio", GST_TYPE_FRACTION, set_par_n, set_par_d, NULL); goto done; } /* Otherwise scale the width to the new PAR and check if the * adjusted with is accepted. If all that fails we can't keep * the DAR */ if (!gst_util_fraction_multiply (from_dar_n, from_dar_d, set_par_d, set_par_n, &num, &den)) goto overflow_error; w = (guint) gst_util_uint64_scale_int (h, num, den); gst_structure_fixate_field_nearest_int (outs, "width", w); if (gst_structure_has_field (outs, "pixel-aspect-ratio") || set_par_n != set_par_d) gst_structure_set (outs, "pixel-aspect-ratio", GST_TYPE_FRACTION, set_par_n, set_par_d, NULL); goto done; } else if (w) { GstStructure *tmp; gint set_h, set_par_n, set_par_d; GST_DEBUG_OBJECT (postproc, "width is fixed (%d)", w); /* If the PAR is fixed too, there's not much to do * except choosing the height that is nearest to the * height with the same DAR */ if (gst_value_is_fixed (to_par)) { to_par_n = gst_value_get_fraction_numerator (to_par); to_par_d = gst_value_get_fraction_denominator (to_par); GST_DEBUG_OBJECT (postproc, "PAR is fixed %d/%d", to_par_n, to_par_d); if (!gst_util_fraction_multiply (from_dar_n, from_dar_d, to_par_d, to_par_n, &num, &den)) goto overflow_error; h = (guint) gst_util_uint64_scale_int (w, den, num); gst_structure_fixate_field_nearest_int (outs, "height", h); goto done; } /* The PAR is not fixed and it's quite likely that we can set * an arbitrary PAR. */ /* Check if we can keep the input height */ tmp = gst_structure_copy (outs); gst_structure_fixate_field_nearest_int (tmp, "height", from_h); gst_structure_get_int (tmp, "height", &set_h); /* Might have failed but try to keep the DAR nonetheless by * adjusting the PAR */ if (!gst_util_fraction_multiply (from_dar_n, from_dar_d, set_h, w, &to_par_n, &to_par_d)) { gst_structure_free (tmp); goto overflow_error; } if (!gst_structure_has_field (tmp, "pixel-aspect-ratio")) gst_structure_set_value (tmp, "pixel-aspect-ratio", to_par); gst_structure_fixate_field_nearest_fraction (tmp, "pixel-aspect-ratio", to_par_n, to_par_d); gst_structure_get_fraction (tmp, "pixel-aspect-ratio", &set_par_n, &set_par_d); gst_structure_free (tmp); /* Check if the adjusted PAR is accepted */ if (set_par_n == to_par_n && set_par_d == to_par_d) { if (gst_structure_has_field (outs, "pixel-aspect-ratio") || set_par_n != set_par_d) gst_structure_set (outs, "height", G_TYPE_INT, set_h, "pixel-aspect-ratio", GST_TYPE_FRACTION, set_par_n, set_par_d, NULL); goto done; } /* Otherwise scale the height to the new PAR and check if the * adjusted with is accepted. If all that fails we can't keep * the DAR */ if (!gst_util_fraction_multiply (from_dar_n, from_dar_d, set_par_d, set_par_n, &num, &den)) goto overflow_error; h = (guint) gst_util_uint64_scale_int (w, den, num); gst_structure_fixate_field_nearest_int (outs, "height", h); if (gst_structure_has_field (outs, "pixel-aspect-ratio") || set_par_n != set_par_d) gst_structure_set (outs, "pixel-aspect-ratio", GST_TYPE_FRACTION, set_par_n, set_par_d, NULL); goto done; } else if (gst_value_is_fixed (to_par)) { GstStructure *tmp; gint set_h, set_w, f_h, f_w; to_par_n = gst_value_get_fraction_numerator (to_par); to_par_d = gst_value_get_fraction_denominator (to_par); /* Calculate scale factor for the PAR change */ if (!gst_util_fraction_multiply (from_dar_n, from_dar_d, to_par_n, to_par_d, &num, &den)) goto overflow_error; /* Try to keep the input height (because of interlacing) */ tmp = gst_structure_copy (outs); gst_structure_fixate_field_nearest_int (tmp, "height", from_h); gst_structure_get_int (tmp, "height", &set_h); /* This might have failed but try to scale the width * to keep the DAR nonetheless */ w = (guint) gst_util_uint64_scale_int (set_h, num, den); gst_structure_fixate_field_nearest_int (tmp, "width", w); gst_structure_get_int (tmp, "width", &set_w); gst_structure_free (tmp); /* We kept the DAR and the height is nearest to the original height */ if (set_w == w) { gst_structure_set (outs, "width", G_TYPE_INT, set_w, "height", G_TYPE_INT, set_h, NULL); goto done; } f_h = set_h; f_w = set_w; /* If the former failed, try to keep the input width at least */ tmp = gst_structure_copy (outs); gst_structure_fixate_field_nearest_int (tmp, "width", from_w); gst_structure_get_int (tmp, "width", &set_w); /* This might have failed but try to scale the width * to keep the DAR nonetheless */ h = (guint) gst_util_uint64_scale_int (set_w, den, num); gst_structure_fixate_field_nearest_int (tmp, "height", h); gst_structure_get_int (tmp, "height", &set_h); gst_structure_free (tmp); /* We kept the DAR and the width is nearest to the original width */ if (set_h == h) { gst_structure_set (outs, "width", G_TYPE_INT, set_w, "height", G_TYPE_INT, set_h, NULL); goto done; } /* If all this failed, keep the height that was nearest to the orignal * height and the nearest possible width. This changes the DAR but * there's not much else to do here. */ gst_structure_set (outs, "width", G_TYPE_INT, f_w, "height", G_TYPE_INT, f_h, NULL); goto done; } else { GstStructure *tmp; gint set_h, set_w, set_par_n, set_par_d, tmp2; /* width, height and PAR are not fixed but passthrough is not possible */ /* First try to keep the height and width as good as possible * and scale PAR */ tmp = gst_structure_copy (outs); gst_structure_fixate_field_nearest_int (tmp, "height", from_h); gst_structure_get_int (tmp, "height", &set_h); gst_structure_fixate_field_nearest_int (tmp, "width", from_w); gst_structure_get_int (tmp, "width", &set_w); if (!gst_util_fraction_multiply (from_dar_n, from_dar_d, set_h, set_w, &to_par_n, &to_par_d)) { gst_structure_free (tmp); goto overflow_error; } if (!gst_structure_has_field (tmp, "pixel-aspect-ratio")) gst_structure_set_value (tmp, "pixel-aspect-ratio", to_par); gst_structure_fixate_field_nearest_fraction (tmp, "pixel-aspect-ratio", to_par_n, to_par_d); gst_structure_get_fraction (tmp, "pixel-aspect-ratio", &set_par_n, &set_par_d); gst_structure_free (tmp); if (set_par_n == to_par_n && set_par_d == to_par_d) { gst_structure_set (outs, "width", G_TYPE_INT, set_w, "height", G_TYPE_INT, set_h, NULL); if (gst_structure_has_field (outs, "pixel-aspect-ratio") || set_par_n != set_par_d) gst_structure_set (outs, "pixel-aspect-ratio", GST_TYPE_FRACTION, set_par_n, set_par_d, NULL); goto done; } /* Otherwise try to scale width to keep the DAR with the set * PAR and height */ if (!gst_util_fraction_multiply (from_dar_n, from_dar_d, set_par_d, set_par_n, &num, &den)) goto overflow_error; w = (guint) gst_util_uint64_scale_int (set_h, num, den); tmp = gst_structure_copy (outs); gst_structure_fixate_field_nearest_int (tmp, "width", w); gst_structure_get_int (tmp, "width", &tmp2); gst_structure_free (tmp); if (tmp2 == w) { gst_structure_set (outs, "width", G_TYPE_INT, tmp2, "height", G_TYPE_INT, set_h, NULL); if (gst_structure_has_field (outs, "pixel-aspect-ratio") || set_par_n != set_par_d) gst_structure_set (outs, "pixel-aspect-ratio", GST_TYPE_FRACTION, set_par_n, set_par_d, NULL); goto done; } /* ... or try the same with the height */ h = (guint) gst_util_uint64_scale_int (set_w, den, num); tmp = gst_structure_copy (outs); gst_structure_fixate_field_nearest_int (tmp, "height", h); gst_structure_get_int (tmp, "height", &tmp2); gst_structure_free (tmp); if (tmp2 == h) { gst_structure_set (outs, "width", G_TYPE_INT, set_w, "height", G_TYPE_INT, tmp2, NULL); if (gst_structure_has_field (outs, "pixel-aspect-ratio") || set_par_n != set_par_d) gst_structure_set (outs, "pixel-aspect-ratio", GST_TYPE_FRACTION, set_par_n, set_par_d, NULL); goto done; } /* If all fails we can't keep the DAR and take the nearest values * for everything from the first try */ gst_structure_set (outs, "width", G_TYPE_INT, set_w, "height", G_TYPE_INT, set_h, NULL); if (gst_structure_has_field (outs, "pixel-aspect-ratio") || set_par_n != set_par_d) gst_structure_set (outs, "pixel-aspect-ratio", GST_TYPE_FRACTION, set_par_n, set_par_d, NULL); } } done: if (to_par == &tpar) g_value_unset (&tpar); return ret; /* ERRORS */ overflow_error: { ret = FALSE; GST_ELEMENT_ERROR (postproc, CORE, NEGOTIATION, (NULL), ("Error calculating the output scaled size - integer overflow")); goto done; } } static gboolean _fixate_frame_rate (GstVaapiPostproc * postproc, GstVideoInfo * vinfo, GstStructure * outs) { gint fps_n, fps_d; fps_n = GST_VIDEO_INFO_FPS_N (vinfo); fps_d = GST_VIDEO_INFO_FPS_D (vinfo); if (is_deinterlace_enabled (postproc, vinfo)) { if (!gst_util_fraction_multiply (fps_n, fps_d, 2, 1, &fps_n, &fps_d)) goto overflow_error; } gst_structure_set (outs, "framerate", GST_TYPE_FRACTION, fps_n, fps_d, NULL); return TRUE; /* ERRORS */ overflow_error: { GST_ELEMENT_ERROR (postproc, CORE, NEGOTIATION, (NULL), ("Error calculating the output framerate - integer overflow")); return FALSE; } } static gboolean _set_multiview_mode (GstVaapiPostproc * postproc, GstVideoInfo * vinfo, GstStructure * outs) { const gchar *caps_str; caps_str = gst_video_multiview_mode_to_caps_string (GST_VIDEO_INFO_MULTIVIEW_MODE (vinfo)); if (!caps_str) return TRUE; gst_structure_set (outs, "multiview-mode", G_TYPE_STRING, caps_str, "multiview-flags", GST_TYPE_VIDEO_MULTIVIEW_FLAGSET, GST_VIDEO_INFO_MULTIVIEW_FLAGS (vinfo), GST_FLAG_SET_MASK_EXACT, NULL); if (GST_VIDEO_INFO_VIEWS (vinfo) > 1) { gst_structure_set (outs, "views", G_TYPE_INT, GST_VIDEO_INFO_VIEWS (vinfo), NULL); } return TRUE; } static gboolean _set_colorimetry (GstVaapiPostproc * postproc, GstVideoInfo * sinkinfo, GstVideoFormat format, GstStructure * outs) { GstVideoInfo vinfo; GstVideoColorimetry colorimetry; gchar *color; gint width, height; if (!gst_structure_get_int (outs, "width", &width) || !gst_structure_get_int (outs, "height", &height)) return FALSE; /* Use the sink resolution and the src format to correctly determine the * default src colorimetry. */ gst_video_info_set_format (&vinfo, format, GST_VIDEO_INFO_WIDTH (sinkinfo), GST_VIDEO_INFO_HEIGHT (sinkinfo)); if (GST_VIDEO_INFO_CHROMA_SITE (&vinfo) != GST_VIDEO_CHROMA_SITE_UNKNOWN) { gst_structure_set (outs, "chroma-site", G_TYPE_STRING, gst_video_chroma_to_string (GST_VIDEO_INFO_CHROMA_SITE (&vinfo)), NULL); } /* if outs structure already specifies colorimetry, use it */ if (gst_structure_has_field (outs, "colorimetry")) return TRUE; /* make sure we set the RGB matrix for RGB formats */ colorimetry = GST_VIDEO_INFO_COLORIMETRY (&vinfo); if (GST_VIDEO_FORMAT_INFO_IS_RGB (vinfo.finfo) && colorimetry.matrix != GST_VIDEO_COLOR_MATRIX_RGB) { GST_WARNING ("invalid matrix %d for RGB format, using RGB", colorimetry.matrix); colorimetry.matrix = GST_VIDEO_COLOR_MATRIX_RGB; } if ((color = gst_video_colorimetry_to_string (&colorimetry))) { gst_structure_set (outs, "colorimetry", G_TYPE_STRING, color, NULL); g_free (color); } return TRUE; } static gboolean _set_interlace_mode (GstVaapiPostproc * postproc, GstVideoInfo * vinfo, GstStructure * outs) { const gchar *interlace_mode = NULL; if (is_deinterlace_enabled (postproc, vinfo)) { interlace_mode = "progressive"; } else { interlace_mode = gst_video_interlace_mode_to_string (GST_VIDEO_INFO_INTERLACE_MODE (vinfo)); } if (!interlace_mode) return FALSE; gst_structure_set (outs, "interlace-mode", G_TYPE_STRING, interlace_mode, NULL); return TRUE; } static gboolean _set_preferred_format (GstStructure * outs, GstVideoFormat format) { GValue value = G_VALUE_INIT; if (format == GST_VIDEO_FORMAT_UNKNOWN || format == GST_VIDEO_FORMAT_ENCODED) return FALSE; if (!gst_vaapi_value_set_format (&value, format)) return FALSE; gst_structure_set_value (outs, "format", &value); g_value_unset (&value); return TRUE; } static GstCaps * _get_preferred_caps (GstVaapiPostproc * postproc, GstVideoInfo * vinfo, GstCaps * srccaps) { GstPad *srcpad; GstVideoFormat format; GstVaapiCapsFeature f; const gchar *feature; GstStructure *structure; GstCapsFeatures *features; GstCaps *outcaps; gint i, n; format = GST_VIDEO_FORMAT_UNKNOWN; srcpad = GST_BASE_TRANSFORM_SRC_PAD (postproc); f = gst_vaapi_find_preferred_caps_feature (srcpad, srccaps, &format); if (f == GST_VAAPI_CAPS_FEATURE_NOT_NEGOTIATED) return NULL; feature = gst_vaapi_caps_feature_to_string (f); if (!feature) feature = GST_CAPS_FEATURE_MEMORY_SYSTEM_MEMORY; n = gst_caps_get_size (srccaps); for (i = 0; i < n; i++) { structure = gst_caps_get_structure (srccaps, i); features = gst_caps_get_features (srccaps, i); if (!gst_caps_features_is_any (features) && gst_caps_features_contains (features, feature)) break; } if (i >= n) goto invalid_caps; /* make copy */ structure = gst_structure_copy (structure); if (!_set_preferred_format (structure, format)) goto fixate_failed; if (!_fixate_frame_size (postproc, vinfo, structure)) goto fixate_failed; if (!_fixate_frame_rate (postproc, vinfo, structure)) goto fixate_failed; _set_multiview_mode (postproc, vinfo, structure); if (!_set_colorimetry (postproc, vinfo, format, structure)) goto fixate_failed; if (!_set_interlace_mode (postproc, vinfo, structure)) goto interlace_mode_failed; outcaps = gst_caps_new_empty (); gst_caps_append_structure_full (outcaps, structure, gst_caps_features_copy (features)); /* we don't need to do format conversion if GL_TEXTURE_UPLOAD_META * is negotiated */ if (f == GST_VAAPI_CAPS_FEATURE_GL_TEXTURE_UPLOAD_META) { postproc->format = DEFAULT_FORMAT; } else if (postproc->format != format) { postproc->format = format; } return gst_caps_fixate (outcaps); /* ERRORS */ fixate_failed: { GST_WARNING_OBJECT (postproc, "Could not fixate src caps"); gst_structure_free (structure); return NULL; } invalid_caps: { GST_WARNING_OBJECT (postproc, "No valid src caps found"); return NULL; } interlace_mode_failed: { GST_WARNING_OBJECT (postproc, "Invalid sink caps interlace mode"); return NULL; } } /** * gst_vaapipostproc_fixate_srccaps: * @postproc: a #GstVaapiPostproc instance * @sinkcaps: fixed #GstCaps from sink pad * @srccaps: #GstCaps from src pad to fixate * * Given @srccaps and @sinkcaps returns a new allocated #GstCaps with * the fixated caps for the src pad. * * Returns: A new allocated #GstCaps **/ GstCaps * gst_vaapipostproc_fixate_srccaps (GstVaapiPostproc * postproc, GstCaps * sinkcaps, GstCaps * srccaps) { GstVideoInfo vi; if (!gst_video_info_from_caps (&vi, sinkcaps)) return NULL; return _get_preferred_caps (postproc, &vi, srccaps); }