/* * gstmsdkvpputil.c - MediaSDK video post processing utilities * * Copyright (C) <1999> Erik Walthinsen * Copyright (C) 2005-2012 David Schleef * Copyright (C) 2016 Intel Corporation * Copyright (C) 2018 Intel Corporation * Author: Gwenole Beauchesne * Author: Victor Jaquez * Author: Sreerenj Balachandran * * 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 "gstmsdkvpputil.h" #include "msdk-enums.h" gboolean gst_msdkvpp_is_deinterlace_enabled (GstMsdkVPP * msdkvpp, GstVideoInfo * vip) { gboolean deinterlace; switch (msdkvpp->deinterlace_mode) { case GST_MSDKVPP_DEINTERLACE_MODE_AUTO: deinterlace = GST_VIDEO_INFO_IS_INTERLACED (vip); break; case GST_MSDKVPP_DEINTERLACE_MODE_INTERLACED: deinterlace = TRUE; break; default: deinterlace = FALSE; break; } return deinterlace; } static gboolean fixate_output_frame_size (GstMsdkVPP * thiz, 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); 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 (thiz, "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 (thiz, "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 (thiz, "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 (thiz, "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 (thiz, "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 (thiz, "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 (thiz, "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 (thiz, CORE, NEGOTIATION, (NULL), ("Error calculating the output scaled size - integer overflow")); goto done; } } static gboolean fixate_frame_rate (GstMsdkVPP * thiz, GstVideoInfo * vinfo, GstStructure * outs) { gint fps_n = 0, fps_d; /* fixate the srcpad fps */ if (gst_structure_fixate_field (outs, "framerate")) gst_structure_get (outs, "framerate", GST_TYPE_FRACTION, &fps_n, &fps_d, NULL); /* if we don't have a fixed non-zero fps_n, use the sinkpad fps */ if (!fps_n) { fps_n = GST_VIDEO_INFO_FPS_N (vinfo); fps_d = GST_VIDEO_INFO_FPS_D (vinfo); } if (gst_msdkvpp_is_deinterlace_enabled (thiz, vinfo)) { /* Fixme: set double framerate?: * msdk is not outputting double framerate for bob or adv deinterlace */ if (!gst_util_fraction_multiply (fps_n, fps_d, 1, 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 (thiz, CORE, NEGOTIATION, (NULL), ("Error calculating the output framerate - integer overflow")); return FALSE; } } static gboolean set_multiview_mode (GstMsdkVPP * thiz, 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_interlace_mode (GstMsdkVPP * thiz, GstVideoInfo * vinfo, GstStructure * outs) { const gchar *interlace_mode = NULL; if (gst_msdkvpp_is_deinterlace_enabled (thiz, 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 GstCaps * _get_preferred_src_caps (GstMsdkVPP * thiz, GstVideoInfo * vinfo, GstCaps * srccaps) { GstStructure *structure; GstCaps *outcaps; structure = gst_caps_get_structure (srccaps, 0); /* make a copy */ structure = gst_structure_copy (structure); if (thiz->keep_aspect) gst_structure_set (structure, "pixel-aspect-ratio", GST_TYPE_FRACTION, 1, 1, NULL); /* Fixate the format */ if (!gst_structure_fixate_field (structure, "format")) goto fixate_failed; /* Fixate the frame size */ if (!fixate_output_frame_size (thiz, vinfo, structure)) goto fixate_failed; /* Fixate the framerate */ if (!fixate_frame_rate (thiz, vinfo, structure)) goto fixate_failed; /* set multiview mode based on input caps */ if (!set_multiview_mode (thiz, vinfo, structure)) goto fixate_failed; /*Fixme: Set colorimetry */ /* set interlace mode */ if (!set_interlace_mode (thiz, vinfo, structure)) goto interlace_mode_failed; outcaps = gst_caps_new_empty (); gst_caps_append_structure (outcaps, structure); return outcaps; /* ERRORS */ fixate_failed: { GST_WARNING_OBJECT (thiz, "Could not fixate src caps"); gst_structure_free (structure); return NULL; } interlace_mode_failed: { GST_WARNING_OBJECT (thiz, "Invalid sink caps interlace mode"); return NULL; } } /** * gst_msdkvpp_fixate_srccaps: * @vpp: a #GstMsdkVPP 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_msdkvpp_fixate_srccaps (GstMsdkVPP * msdkvpp, GstCaps * sinkcaps, GstCaps * srccaps) { GstVideoInfo vi; if (!gst_video_info_from_caps (&vi, sinkcaps)) return NULL; return _get_preferred_src_caps (msdkvpp, &vi, srccaps); }