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vaapipostproc: negotiate frame size fixation
Refactor _fixate_frame_size(). Now, instead of fixating the frame size only using the sink caps, also it use the next capsfilter. This code is a shameless copy of gst_video_scale_fixate_caps() from https://cgit.freedesktop.org/gstreamer/gst-plugins-base/tree/gst/videoscale/gstvideoscale.c?id=1.8.1#n634 https://bugzilla.gnome.org/show_bug.cgi?id=758548
This commit is contained in:
Víctor Manuel Jáquez Leal
parent
4d1b11ed03
commit
7baacda91c
1 changed files with 371 additions and 36 deletions
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@ -1,6 +1,8 @@
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/*
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* gstvaapipostprocutil.h - VA-API video post processing utilities
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*
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* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
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* Copyright (C) 2005-2012 David Schleef <ds@schleef.org>
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* Copyright (C) 2016 Intel Corporation
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* Author: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
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* Author: Victor Jaquez <victorx.jaquez@intel.com>
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@ -146,47 +148,380 @@ is_deinterlace_enabled (GstVaapiPostproc * postproc, GstVideoInfo * vip)
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return deinterlace;
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}
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static void
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find_best_size (GstVaapiPostproc * postproc, GstVideoInfo * vip,
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guint * width_ptr, guint * height_ptr)
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{
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guint width, height;
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width = GST_VIDEO_INFO_WIDTH (vip);
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height = GST_VIDEO_INFO_HEIGHT (vip);
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if (postproc->width && postproc->height) {
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width = postproc->width;
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height = postproc->height;
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} else if (postproc->keep_aspect) {
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const gdouble ratio = (gdouble) width / height;
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if (postproc->width) {
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width = postproc->width;
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height = postproc->width / ratio;
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} else if (postproc->height) {
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height = postproc->height;
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width = postproc->height * ratio;
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}
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} else if (postproc->width)
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width = postproc->width;
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else if (postproc->height)
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height = postproc->height;
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*width_ptr = width;
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*height_ptr = height;
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}
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static gboolean
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_fixate_frame_size (GstVaapiPostproc * postproc, GstVideoInfo * vinfo,
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GstStructure * outs)
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{
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guint width, height, par_n, par_d;
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const GValue *to_par;
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GValue tpar = G_VALUE_INIT;
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gboolean ret;
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par_n = GST_VIDEO_INFO_PAR_N (vinfo);
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par_d = GST_VIDEO_INFO_PAR_D (vinfo);
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find_best_size (postproc, vinfo, &width, &height);
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gst_structure_set (outs, "width", G_TYPE_INT, width, "height", G_TYPE_INT,
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height, "pixel-aspect-ratio", GST_TYPE_FRACTION, par_n, par_d, NULL);
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return TRUE;
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ret = TRUE;
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to_par = gst_structure_get_value (outs, "pixel-aspect-ratio");
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if (!to_par) {
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g_value_init (&tpar, GST_TYPE_FRACTION);
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gst_value_set_fraction (&tpar, 1, 1);
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to_par = &tpar;
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gst_structure_set (outs, "pixel-aspect-ratio", GST_TYPE_FRACTION, 1, 1,
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NULL);
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}
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/* we have both PAR but they might not be fixated */
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{
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gint from_w, from_h, from_par_n, from_par_d, to_par_n, to_par_d;
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gint w = 0, h = 0;
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gint from_dar_n, from_dar_d;
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gint num, den;
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from_par_n = GST_VIDEO_INFO_PAR_N (vinfo);
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from_par_d = GST_VIDEO_INFO_PAR_D (vinfo);
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from_w = GST_VIDEO_INFO_WIDTH (vinfo);
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from_h = GST_VIDEO_INFO_HEIGHT (vinfo);
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gst_structure_get_int (outs, "width", &w);
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gst_structure_get_int (outs, "height", &h);
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/* if both width and height are already fixed, we can't do anything
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* about it anymore */
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if (w && h) {
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guint n, d;
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GST_DEBUG_OBJECT (postproc,
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"dimensions already set to %dx%d, not fixating", w, h);
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if (!gst_value_is_fixed (to_par)) {
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if (gst_video_calculate_display_ratio (&n, &d, from_w, from_h,
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from_par_n, from_par_d, w, h)) {
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GST_DEBUG_OBJECT (postproc, "fixating to_par to %dx%d", n, d);
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if (gst_structure_has_field (outs, "pixel-aspect-ratio"))
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gst_structure_fixate_field_nearest_fraction (outs,
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"pixel-aspect-ratio", n, d);
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else if (n != d)
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gst_structure_set (outs, "pixel-aspect-ratio", GST_TYPE_FRACTION,
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n, d, NULL);
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}
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}
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goto done;
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}
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/* Calculate input DAR */
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if (!gst_util_fraction_multiply (from_w, from_h, from_par_n, from_par_d,
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&from_dar_n, &from_dar_d))
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goto overflow_error;
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GST_DEBUG_OBJECT (postproc, "Input DAR is %d/%d", from_dar_n, from_dar_d);
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/* If either width or height are fixed there's not much we
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* can do either except choosing a height or width and PAR
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* that matches the DAR as good as possible
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*/
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if (h) {
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GstStructure *tmp;
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gint set_w, set_par_n, set_par_d;
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GST_DEBUG_OBJECT (postproc, "height is fixed (%d)", h);
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/* If the PAR is fixed too, there's not much to do
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* except choosing the width that is nearest to the
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* width with the same DAR */
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if (gst_value_is_fixed (to_par)) {
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to_par_n = gst_value_get_fraction_numerator (to_par);
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to_par_d = gst_value_get_fraction_denominator (to_par);
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GST_DEBUG_OBJECT (postproc, "PAR is fixed %d/%d", to_par_n, to_par_d);
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if (!gst_util_fraction_multiply (from_dar_n, from_dar_d, to_par_d,
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to_par_n, &num, &den))
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goto overflow_error;
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w = (guint) gst_util_uint64_scale_int (h, num, den);
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gst_structure_fixate_field_nearest_int (outs, "width", w);
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goto done;
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}
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/* The PAR is not fixed and it's quite likely that we can set
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* an arbitrary PAR. */
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/* Check if we can keep the input width */
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tmp = gst_structure_copy (outs);
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gst_structure_fixate_field_nearest_int (tmp, "width", from_w);
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gst_structure_get_int (tmp, "width", &set_w);
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/* Might have failed but try to keep the DAR nonetheless by
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* adjusting the PAR */
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if (!gst_util_fraction_multiply (from_dar_n, from_dar_d, h, set_w,
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&to_par_n, &to_par_d))
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goto overflow_error;
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if (!gst_structure_has_field (tmp, "pixel-aspect-ratio"))
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gst_structure_set_value (tmp, "pixel-aspect-ratio", to_par);
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gst_structure_fixate_field_nearest_fraction (tmp, "pixel-aspect-ratio",
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to_par_n, to_par_d);
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gst_structure_get_fraction (tmp, "pixel-aspect-ratio", &set_par_n,
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&set_par_d);
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gst_structure_free (tmp);
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/* Check if the adjusted PAR is accepted */
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if (set_par_n == to_par_n && set_par_d == to_par_d) {
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if (gst_structure_has_field (outs, "pixel-aspect-ratio") ||
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set_par_n != set_par_d)
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gst_structure_set (outs, "width", G_TYPE_INT, set_w,
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"pixel-aspect-ratio", GST_TYPE_FRACTION, set_par_n, set_par_d,
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NULL);
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goto done;
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}
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/* Otherwise scale the width to the new PAR and check if the
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* adjusted with is accepted. If all that fails we can't keep
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* the DAR */
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if (!gst_util_fraction_multiply (from_dar_n, from_dar_d, set_par_d,
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set_par_n, &num, &den))
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goto overflow_error;
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w = (guint) gst_util_uint64_scale_int (h, num, den);
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gst_structure_fixate_field_nearest_int (outs, "width", w);
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if (gst_structure_has_field (outs, "pixel-aspect-ratio") ||
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set_par_n != set_par_d)
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gst_structure_set (outs, "pixel-aspect-ratio", GST_TYPE_FRACTION,
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set_par_n, set_par_d, NULL);
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goto done;
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} else if (w) {
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GstStructure *tmp;
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gint set_h, set_par_n, set_par_d;
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GST_DEBUG_OBJECT (postproc, "width is fixed (%d)", w);
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/* If the PAR is fixed too, there's not much to do
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* except choosing the height that is nearest to the
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* height with the same DAR */
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if (gst_value_is_fixed (to_par)) {
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to_par_n = gst_value_get_fraction_numerator (to_par);
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to_par_d = gst_value_get_fraction_denominator (to_par);
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GST_DEBUG_OBJECT (postproc, "PAR is fixed %d/%d", to_par_n, to_par_d);
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if (!gst_util_fraction_multiply (from_dar_n, from_dar_d, to_par_d,
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to_par_n, &num, &den))
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goto overflow_error;
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h = (guint) gst_util_uint64_scale_int (w, den, num);
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gst_structure_fixate_field_nearest_int (outs, "height", h);
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goto done;
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}
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/* The PAR is not fixed and it's quite likely that we can set
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* an arbitrary PAR. */
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/* Check if we can keep the input height */
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tmp = gst_structure_copy (outs);
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gst_structure_fixate_field_nearest_int (tmp, "height", from_h);
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gst_structure_get_int (tmp, "height", &set_h);
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/* Might have failed but try to keep the DAR nonetheless by
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* adjusting the PAR */
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if (!gst_util_fraction_multiply (from_dar_n, from_dar_d, set_h, w,
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&to_par_n, &to_par_d))
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goto overflow_error;
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if (!gst_structure_has_field (tmp, "pixel-aspect-ratio"))
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gst_structure_set_value (tmp, "pixel-aspect-ratio", to_par);
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gst_structure_fixate_field_nearest_fraction (tmp, "pixel-aspect-ratio",
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to_par_n, to_par_d);
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gst_structure_get_fraction (tmp, "pixel-aspect-ratio", &set_par_n,
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&set_par_d);
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gst_structure_free (tmp);
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/* Check if the adjusted PAR is accepted */
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if (set_par_n == to_par_n && set_par_d == to_par_d) {
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if (gst_structure_has_field (outs, "pixel-aspect-ratio") ||
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set_par_n != set_par_d)
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gst_structure_set (outs, "height", G_TYPE_INT, set_h,
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"pixel-aspect-ratio", GST_TYPE_FRACTION, set_par_n, set_par_d,
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NULL);
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goto done;
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}
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/* Otherwise scale the height to the new PAR and check if the
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* adjusted with is accepted. If all that fails we can't keep
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* the DAR */
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if (!gst_util_fraction_multiply (from_dar_n, from_dar_d, set_par_d,
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set_par_n, &num, &den))
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goto overflow_error;
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h = (guint) gst_util_uint64_scale_int (w, den, num);
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gst_structure_fixate_field_nearest_int (outs, "height", h);
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if (gst_structure_has_field (outs, "pixel-aspect-ratio") ||
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set_par_n != set_par_d)
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gst_structure_set (outs, "pixel-aspect-ratio", GST_TYPE_FRACTION,
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set_par_n, set_par_d, NULL);
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goto done;
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} else if (gst_value_is_fixed (to_par)) {
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GstStructure *tmp;
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gint set_h, set_w, f_h, f_w;
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to_par_n = gst_value_get_fraction_numerator (to_par);
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to_par_d = gst_value_get_fraction_denominator (to_par);
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/* Calculate scale factor for the PAR change */
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if (!gst_util_fraction_multiply (from_dar_n, from_dar_d, to_par_n,
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to_par_d, &num, &den))
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goto overflow_error;
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/* Try to keep the input height (because of interlacing) */
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tmp = gst_structure_copy (outs);
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gst_structure_fixate_field_nearest_int (tmp, "height", from_h);
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gst_structure_get_int (tmp, "height", &set_h);
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/* This might have failed but try to scale the width
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* to keep the DAR nonetheless */
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w = (guint) gst_util_uint64_scale_int (set_h, num, den);
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gst_structure_fixate_field_nearest_int (tmp, "width", w);
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gst_structure_get_int (tmp, "width", &set_w);
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gst_structure_free (tmp);
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/* We kept the DAR and the height is nearest to the original height */
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if (set_w == w) {
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gst_structure_set (outs, "width", G_TYPE_INT, set_w, "height",
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G_TYPE_INT, set_h, NULL);
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goto done;
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}
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f_h = set_h;
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f_w = set_w;
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/* If the former failed, try to keep the input width at least */
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tmp = gst_structure_copy (outs);
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gst_structure_fixate_field_nearest_int (tmp, "width", from_w);
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gst_structure_get_int (tmp, "width", &set_w);
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/* This might have failed but try to scale the width
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* to keep the DAR nonetheless */
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h = (guint) gst_util_uint64_scale_int (set_w, den, num);
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gst_structure_fixate_field_nearest_int (tmp, "height", h);
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gst_structure_get_int (tmp, "height", &set_h);
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gst_structure_free (tmp);
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/* We kept the DAR and the width is nearest to the original width */
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if (set_h == h) {
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gst_structure_set (outs, "width", G_TYPE_INT, set_w, "height",
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G_TYPE_INT, set_h, NULL);
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goto done;
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}
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/* If all this failed, keep the height that was nearest to the orignal
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* height and the nearest possible width. This changes the DAR but
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* there's not much else to do here.
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*/
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gst_structure_set (outs, "width", G_TYPE_INT, f_w, "height", G_TYPE_INT,
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f_h, NULL);
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goto done;
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} else {
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GstStructure *tmp;
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gint set_h, set_w, set_par_n, set_par_d, tmp2;
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/* width, height and PAR are not fixed but passthrough is not possible */
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/* First try to keep the height and width as good as possible
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* and scale PAR */
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tmp = gst_structure_copy (outs);
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gst_structure_fixate_field_nearest_int (tmp, "height", from_h);
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gst_structure_get_int (tmp, "height", &set_h);
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gst_structure_fixate_field_nearest_int (tmp, "width", from_w);
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gst_structure_get_int (tmp, "width", &set_w);
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if (!gst_util_fraction_multiply (from_dar_n, from_dar_d, set_h, set_w,
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&to_par_n, &to_par_d))
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goto overflow_error;
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if (!gst_structure_has_field (tmp, "pixel-aspect-ratio"))
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gst_structure_set_value (tmp, "pixel-aspect-ratio", to_par);
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gst_structure_fixate_field_nearest_fraction (tmp, "pixel-aspect-ratio",
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to_par_n, to_par_d);
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gst_structure_get_fraction (tmp, "pixel-aspect-ratio", &set_par_n,
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&set_par_d);
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gst_structure_free (tmp);
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if (set_par_n == to_par_n && set_par_d == to_par_d) {
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gst_structure_set (outs, "width", G_TYPE_INT, set_w, "height",
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G_TYPE_INT, set_h, NULL);
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if (gst_structure_has_field (outs, "pixel-aspect-ratio") ||
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set_par_n != set_par_d)
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gst_structure_set (outs, "pixel-aspect-ratio", GST_TYPE_FRACTION,
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set_par_n, set_par_d, NULL);
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goto done;
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}
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/* Otherwise try to scale width to keep the DAR with the set
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* PAR and height */
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if (!gst_util_fraction_multiply (from_dar_n, from_dar_d, set_par_d,
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set_par_n, &num, &den))
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goto overflow_error;
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w = (guint) gst_util_uint64_scale_int (set_h, num, den);
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tmp = gst_structure_copy (outs);
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gst_structure_fixate_field_nearest_int (tmp, "width", w);
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gst_structure_get_int (tmp, "width", &tmp2);
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gst_structure_free (tmp);
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if (tmp2 == w) {
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gst_structure_set (outs, "width", G_TYPE_INT, tmp2, "height",
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G_TYPE_INT, set_h, NULL);
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if (gst_structure_has_field (outs, "pixel-aspect-ratio") ||
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set_par_n != set_par_d)
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gst_structure_set (outs, "pixel-aspect-ratio", GST_TYPE_FRACTION,
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set_par_n, set_par_d, NULL);
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goto done;
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}
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/* ... or try the same with the height */
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h = (guint) gst_util_uint64_scale_int (set_w, den, num);
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tmp = gst_structure_copy (outs);
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gst_structure_fixate_field_nearest_int (tmp, "height", h);
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gst_structure_get_int (tmp, "height", &tmp2);
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gst_structure_free (tmp);
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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
|
||||
|
|
|
|||
Loading…
Reference in a new issue