/* GStreamer * Copyright (C) <1999> Erik Walthinsen * This file: * Copyright (C) 2003 Ronald Bultje * Copyright (C) 2010 David Schleef * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Library General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library 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 * Library General Public License for more details. * * You should have received a copy of the GNU Library General Public * License along with this library; if not, write to the * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, * Boston, MA 02110-1301, USA. */ /** * SECTION:element-videoconvert * @title: videoconvert * * Convert video frames between a great variety of video formats. * * ## Example launch line * |[ * gst-launch-1.0 -v videotestsrc ! video/x-raw,format=YUY2 ! videoconvert ! autovideosink * ]| * This will output a test video (generated in YUY2 format) in a video * window. If the video sink selected does not support YUY2 videoconvert will * automatically convert the video to a format understood by the video sink. * */ #ifdef HAVE_CONFIG_H # include "config.h" #endif #include "gstvideoconvert.h" #include #include #include #include GST_DEBUG_CATEGORY (videoconvert_debug); #define GST_CAT_DEFAULT videoconvert_debug GST_DEBUG_CATEGORY_STATIC (CAT_PERFORMANCE); static GQuark _colorspace_quark; #define gst_video_convert_parent_class parent_class G_DEFINE_TYPE (GstVideoConvert, gst_video_convert, GST_TYPE_VIDEO_FILTER); #define DEFAULT_PROP_DITHER GST_VIDEO_DITHER_BAYER #define DEFAULT_PROP_DITHER_QUANTIZATION 1 #define DEFAULT_PROP_CHROMA_RESAMPLER GST_VIDEO_RESAMPLER_METHOD_LINEAR #define DEFAULT_PROP_ALPHA_MODE GST_VIDEO_ALPHA_MODE_COPY #define DEFAULT_PROP_ALPHA_VALUE 1.0 #define DEFAULT_PROP_CHROMA_MODE GST_VIDEO_CHROMA_MODE_FULL #define DEFAULT_PROP_MATRIX_MODE GST_VIDEO_MATRIX_MODE_FULL #define DEFAULT_PROP_GAMMA_MODE GST_VIDEO_GAMMA_MODE_NONE #define DEFAULT_PROP_PRIMARIES_MODE GST_VIDEO_PRIMARIES_MODE_NONE #define DEFAULT_PROP_N_THREADS 1 enum { PROP_0, PROP_DITHER, PROP_DITHER_QUANTIZATION, PROP_CHROMA_RESAMPLER, PROP_ALPHA_MODE, PROP_ALPHA_VALUE, PROP_CHROMA_MODE, PROP_MATRIX_MODE, PROP_GAMMA_MODE, PROP_PRIMARIES_MODE, PROP_N_THREADS }; #define CSP_VIDEO_CAPS GST_VIDEO_CAPS_MAKE (GST_VIDEO_FORMATS_ALL) ";" \ GST_VIDEO_CAPS_MAKE_WITH_FEATURES ("ANY", GST_VIDEO_FORMATS_ALL) static GstStaticPadTemplate gst_video_convert_src_template = GST_STATIC_PAD_TEMPLATE ("src", GST_PAD_SRC, GST_PAD_ALWAYS, GST_STATIC_CAPS (CSP_VIDEO_CAPS) ); static GstStaticPadTemplate gst_video_convert_sink_template = GST_STATIC_PAD_TEMPLATE ("sink", GST_PAD_SINK, GST_PAD_ALWAYS, GST_STATIC_CAPS (CSP_VIDEO_CAPS) ); static void gst_video_convert_set_property (GObject * object, guint property_id, const GValue * value, GParamSpec * pspec); static void gst_video_convert_get_property (GObject * object, guint property_id, GValue * value, GParamSpec * pspec); static gboolean gst_video_convert_set_info (GstVideoFilter * filter, GstCaps * incaps, GstVideoInfo * in_info, GstCaps * outcaps, GstVideoInfo * out_info); static GstFlowReturn gst_video_convert_transform_frame (GstVideoFilter * filter, GstVideoFrame * in_frame, GstVideoFrame * out_frame); static GstCapsFeatures *features_format_interlaced, *features_format_interlaced_sysmem; /* copies the given caps */ static GstCaps * gst_video_convert_caps_remove_format_info (GstCaps * caps) { GstStructure *st; GstCapsFeatures *f; gint i, n; GstCaps *res; res = gst_caps_new_empty (); n = gst_caps_get_size (caps); for (i = 0; i < n; i++) { st = gst_caps_get_structure (caps, i); f = gst_caps_get_features (caps, i); /* If this is already expressed by the existing caps * skip this structure */ if (i > 0 && gst_caps_is_subset_structure_full (res, st, f)) continue; st = gst_structure_copy (st); /* Only remove format info for the cases when we can actually convert */ if (!gst_caps_features_is_any (f) && (gst_caps_features_is_equal (f, GST_CAPS_FEATURES_MEMORY_SYSTEM_MEMORY) || gst_caps_features_is_equal (f, features_format_interlaced) || gst_caps_features_is_equal (f, features_format_interlaced_sysmem))) { gst_structure_remove_fields (st, "format", "colorimetry", "chroma-site", NULL); } gst_caps_append_structure_full (res, st, gst_caps_features_copy (f)); } return res; } /* * This is an incomplete matrix of in formats and a score for the preferred output * format. * * out: RGB24 RGB16 ARGB AYUV YUV444 YUV422 YUV420 YUV411 YUV410 PAL GRAY * in * RGB24 0 2 1 2 2 3 4 5 6 7 8 * RGB16 1 0 1 2 2 3 4 5 6 7 8 * ARGB 2 3 0 1 4 5 6 7 8 9 10 * AYUV 3 4 1 0 2 5 6 7 8 9 10 * YUV444 2 4 3 1 0 5 6 7 8 9 10 * YUV422 3 5 4 2 1 0 6 7 8 9 10 * YUV420 4 6 5 3 2 1 0 7 8 9 10 * YUV411 4 6 5 3 2 1 7 0 8 9 10 * YUV410 6 8 7 5 4 3 2 1 0 9 10 * PAL 1 3 2 6 4 6 7 8 9 0 10 * GRAY 1 4 3 2 1 5 6 7 8 9 0 * * PAL or GRAY are never preferred, if we can we would convert to PAL instead * of GRAY, though * less subsampling is preferred and if any, preferably horizontal * We would like to keep the alpha, even if we would need to to colorspace conversion * or lose depth. */ #define SCORE_FORMAT_CHANGE 1 #define SCORE_DEPTH_CHANGE 1 #define SCORE_ALPHA_CHANGE 1 #define SCORE_CHROMA_W_CHANGE 1 #define SCORE_CHROMA_H_CHANGE 1 #define SCORE_PALETTE_CHANGE 1 #define SCORE_COLORSPACE_LOSS 2 /* RGB <-> YUV */ #define SCORE_DEPTH_LOSS 4 /* change bit depth */ #define SCORE_ALPHA_LOSS 8 /* lose the alpha channel */ #define SCORE_CHROMA_W_LOSS 16 /* vertical subsample */ #define SCORE_CHROMA_H_LOSS 32 /* horizontal subsample */ #define SCORE_PALETTE_LOSS 64 /* convert to palette format */ #define SCORE_COLOR_LOSS 128 /* convert to GRAY */ #define COLORSPACE_MASK (GST_VIDEO_FORMAT_FLAG_YUV | \ GST_VIDEO_FORMAT_FLAG_RGB | GST_VIDEO_FORMAT_FLAG_GRAY) #define ALPHA_MASK (GST_VIDEO_FORMAT_FLAG_ALPHA) #define PALETTE_MASK (GST_VIDEO_FORMAT_FLAG_PALETTE) /* calculate how much loss a conversion would be */ static void score_value (GstBaseTransform * base, const GstVideoFormatInfo * in_info, const GValue * val, gint * min_loss, const GstVideoFormatInfo ** out_info) { const gchar *fname; const GstVideoFormatInfo *t_info; GstVideoFormatFlags in_flags, t_flags; gint loss; fname = g_value_get_string (val); t_info = gst_video_format_get_info (gst_video_format_from_string (fname)); if (!t_info) return; /* accept input format immediately without loss */ if (in_info == t_info) { *min_loss = 0; *out_info = t_info; return; } loss = SCORE_FORMAT_CHANGE; in_flags = GST_VIDEO_FORMAT_INFO_FLAGS (in_info); in_flags &= ~GST_VIDEO_FORMAT_FLAG_LE; in_flags &= ~GST_VIDEO_FORMAT_FLAG_COMPLEX; in_flags &= ~GST_VIDEO_FORMAT_FLAG_UNPACK; t_flags = GST_VIDEO_FORMAT_INFO_FLAGS (t_info); t_flags &= ~GST_VIDEO_FORMAT_FLAG_LE; t_flags &= ~GST_VIDEO_FORMAT_FLAG_COMPLEX; t_flags &= ~GST_VIDEO_FORMAT_FLAG_UNPACK; if ((t_flags & PALETTE_MASK) != (in_flags & PALETTE_MASK)) { loss += SCORE_PALETTE_CHANGE; if (t_flags & PALETTE_MASK) loss += SCORE_PALETTE_LOSS; } if ((t_flags & COLORSPACE_MASK) != (in_flags & COLORSPACE_MASK)) { loss += SCORE_COLORSPACE_LOSS; if (t_flags & GST_VIDEO_FORMAT_FLAG_GRAY) loss += SCORE_COLOR_LOSS; } if ((t_flags & ALPHA_MASK) != (in_flags & ALPHA_MASK)) { loss += SCORE_ALPHA_CHANGE; if (in_flags & ALPHA_MASK) loss += SCORE_ALPHA_LOSS; } if ((in_info->h_sub[1]) != (t_info->h_sub[1])) { loss += SCORE_CHROMA_H_CHANGE; if ((in_info->h_sub[1]) < (t_info->h_sub[1])) loss += SCORE_CHROMA_H_LOSS; } if ((in_info->w_sub[1]) != (t_info->w_sub[1])) { loss += SCORE_CHROMA_W_CHANGE; if ((in_info->w_sub[1]) < (t_info->w_sub[1])) loss += SCORE_CHROMA_W_LOSS; } if ((in_info->bits) != (t_info->bits)) { loss += SCORE_DEPTH_CHANGE; if ((in_info->bits) > (t_info->bits)) loss += SCORE_DEPTH_LOSS; } GST_DEBUG_OBJECT (base, "score %s -> %s = %d", GST_VIDEO_FORMAT_INFO_NAME (in_info), GST_VIDEO_FORMAT_INFO_NAME (t_info), loss); if (loss < *min_loss) { GST_DEBUG_OBJECT (base, "found new best %d", loss); *out_info = t_info; *min_loss = loss; } } static void gst_video_convert_fixate_format (GstBaseTransform * base, GstCaps * caps, GstCaps * result) { GstStructure *ins, *outs; const gchar *in_format; const GstVideoFormatInfo *in_info, *out_info = NULL; gint min_loss = G_MAXINT; guint i, capslen; ins = gst_caps_get_structure (caps, 0); in_format = gst_structure_get_string (ins, "format"); if (!in_format) return; GST_DEBUG_OBJECT (base, "source format %s", in_format); in_info = gst_video_format_get_info (gst_video_format_from_string (in_format)); if (!in_info) return; outs = gst_caps_get_structure (result, 0); capslen = gst_caps_get_size (result); GST_DEBUG_OBJECT (base, "iterate %d structures", capslen); for (i = 0; i < capslen; i++) { GstStructure *tests; const GValue *format; tests = gst_caps_get_structure (result, i); format = gst_structure_get_value (tests, "format"); /* should not happen */ if (format == NULL) continue; if (GST_VALUE_HOLDS_LIST (format)) { gint j, len; len = gst_value_list_get_size (format); GST_DEBUG_OBJECT (base, "have %d formats", len); for (j = 0; j < len; j++) { const GValue *val; val = gst_value_list_get_value (format, j); if (G_VALUE_HOLDS_STRING (val)) { score_value (base, in_info, val, &min_loss, &out_info); if (min_loss == 0) break; } } } else if (G_VALUE_HOLDS_STRING (format)) { score_value (base, in_info, format, &min_loss, &out_info); } } if (out_info) gst_structure_set (outs, "format", G_TYPE_STRING, GST_VIDEO_FORMAT_INFO_NAME (out_info), NULL); } static gboolean subsampling_unchanged (GstVideoInfo * in_info, GstVideoInfo * out_info) { gint i; const GstVideoFormatInfo *in_format, *out_format; if (GST_VIDEO_INFO_N_COMPONENTS (in_info) != GST_VIDEO_INFO_N_COMPONENTS (out_info)) return FALSE; in_format = in_info->finfo; out_format = out_info->finfo; for (i = 0; i < GST_VIDEO_INFO_N_COMPONENTS (in_info); i++) { if (GST_VIDEO_FORMAT_INFO_W_SUB (in_format, i) != GST_VIDEO_FORMAT_INFO_W_SUB (out_format, i)) return FALSE; if (GST_VIDEO_FORMAT_INFO_H_SUB (in_format, i) != GST_VIDEO_FORMAT_INFO_H_SUB (out_format, i)) return FALSE; } return TRUE; } static void transfer_colorimetry_from_input (GstBaseTransform * trans, GstCaps * in_caps, GstCaps * out_caps) { GstStructure *out_caps_s = gst_caps_get_structure (out_caps, 0); GstStructure *in_caps_s = gst_caps_get_structure (in_caps, 0); gboolean have_colorimetry = gst_structure_has_field (out_caps_s, "colorimetry"); gboolean have_chroma_site = gst_structure_has_field (out_caps_s, "chroma-site"); /* If the output already has colorimetry and chroma-site, stop, * otherwise try and transfer what we can from the input caps */ if (have_colorimetry && have_chroma_site) return; { GstVideoInfo in_info, out_info; const GValue *in_colorimetry = gst_structure_get_value (in_caps_s, "colorimetry"); if (!gst_video_info_from_caps (&in_info, in_caps)) { GST_WARNING_OBJECT (trans, "Failed to convert sink pad caps to video info"); return; } if (!gst_video_info_from_caps (&out_info, out_caps)) { GST_WARNING_OBJECT (trans, "Failed to convert src pad caps to video info"); return; } if (!have_colorimetry && in_colorimetry != NULL) { if ((GST_VIDEO_INFO_IS_YUV (&out_info) && GST_VIDEO_INFO_IS_YUV (&in_info)) || (GST_VIDEO_INFO_IS_RGB (&out_info) && GST_VIDEO_INFO_IS_RGB (&in_info)) || (GST_VIDEO_INFO_IS_GRAY (&out_info) && GST_VIDEO_INFO_IS_GRAY (&in_info))) { /* Can transfer the colorimetry intact from the input if it has it */ gst_structure_set_value (out_caps_s, "colorimetry", in_colorimetry); } else { gchar *colorimetry_str; /* Changing between YUV/RGB - forward primaries and transfer function, but use * default range and matrix. * the primaries is used for conversion between RGB and XYZ (CIE 1931 coordinate). * the transfer function could be another reference (e.g., HDR) */ out_info.colorimetry.primaries = in_info.colorimetry.primaries; out_info.colorimetry.transfer = in_info.colorimetry.transfer; colorimetry_str = gst_video_colorimetry_to_string (&out_info.colorimetry); gst_caps_set_simple (out_caps, "colorimetry", G_TYPE_STRING, colorimetry_str, NULL); g_free (colorimetry_str); } } /* Only YUV output needs chroma-site. If the input was also YUV and had the same chroma * subsampling, transfer the siting. If the sub-sampling is changing, then the planes get * scaled anyway so there's no real reason to prefer the input siting. */ if (!have_chroma_site && GST_VIDEO_INFO_IS_YUV (&out_info)) { if (GST_VIDEO_INFO_IS_YUV (&in_info)) { const GValue *in_chroma_site = gst_structure_get_value (in_caps_s, "chroma-site"); if (in_chroma_site != NULL && subsampling_unchanged (&in_info, &out_info)) gst_structure_set_value (out_caps_s, "chroma-site", in_chroma_site); } } } } static GstCaps * gst_video_convert_fixate_caps (GstBaseTransform * trans, GstPadDirection direction, GstCaps * caps, GstCaps * othercaps) { GstCaps *result; GST_DEBUG_OBJECT (trans, "trying to fixate othercaps %" GST_PTR_FORMAT " based on caps %" GST_PTR_FORMAT, othercaps, caps); result = gst_caps_intersect (othercaps, caps); if (gst_caps_is_empty (result)) { gst_caps_unref (result); result = othercaps; } else { gst_caps_unref (othercaps); } GST_DEBUG_OBJECT (trans, "now fixating %" GST_PTR_FORMAT, result); result = gst_caps_make_writable (result); gst_video_convert_fixate_format (trans, caps, result); /* fixate remaining fields */ result = gst_caps_fixate (result); if (direction == GST_PAD_SINK) { if (gst_caps_is_subset (caps, result)) { gst_caps_replace (&result, caps); } else { /* Try and preserve input colorimetry / chroma information */ transfer_colorimetry_from_input (trans, caps, result); } } return result; } static gboolean gst_video_convert_filter_meta (GstBaseTransform * trans, GstQuery * query, GType api, const GstStructure * params) { /* This element cannot passthrough the crop meta, because it would convert the * wrong sub-region of the image, and worst, our output image may not be large * enough for the crop to be applied later */ if (api == GST_VIDEO_CROP_META_API_TYPE) return FALSE; /* propose all other metadata upstream */ return TRUE; } /* The caps can be transformed into any other caps with format info removed. * However, we should prefer passthrough, so if passthrough is possible, * put it first in the list. */ static GstCaps * gst_video_convert_transform_caps (GstBaseTransform * btrans, GstPadDirection direction, GstCaps * caps, GstCaps * filter) { GstCaps *tmp, *tmp2; GstCaps *result; /* Get all possible caps that we can transform to */ tmp = gst_video_convert_caps_remove_format_info (caps); if (filter) { tmp2 = gst_caps_intersect_full (filter, tmp, GST_CAPS_INTERSECT_FIRST); gst_caps_unref (tmp); tmp = tmp2; } result = tmp; GST_DEBUG_OBJECT (btrans, "transformed %" GST_PTR_FORMAT " into %" GST_PTR_FORMAT, caps, result); return result; } static gboolean gst_video_convert_transform_meta (GstBaseTransform * trans, GstBuffer * outbuf, GstMeta * meta, GstBuffer * inbuf) { const GstMetaInfo *info = meta->info; gboolean ret; if (gst_meta_api_type_has_tag (info->api, _colorspace_quark)) { /* don't copy colorspace specific metadata, FIXME, we need a MetaTransform * for the colorspace metadata. */ ret = FALSE; } else { /* copy other metadata */ ret = TRUE; } return ret; } static gboolean gst_video_convert_set_info (GstVideoFilter * filter, GstCaps * incaps, GstVideoInfo * in_info, GstCaps * outcaps, GstVideoInfo * out_info) { GstVideoConvert *space; GstBaseTransformClass *gstbasetransform_class = GST_BASE_TRANSFORM_GET_CLASS (filter); GstVideoInfo tmp_info; space = GST_VIDEO_CONVERT_CAST (filter); if (space->convert) { gst_video_converter_free (space->convert); space->convert = NULL; } /* these must match */ if (in_info->width != out_info->width || in_info->height != out_info->height || in_info->fps_n != out_info->fps_n || in_info->fps_d != out_info->fps_d) goto format_mismatch; /* if present, these must match too */ if (in_info->par_n != out_info->par_n || in_info->par_d != out_info->par_d) goto format_mismatch; /* if present, these must match too */ if (in_info->interlace_mode != out_info->interlace_mode) goto format_mismatch; /* if the only thing different in the caps is the transfer function, and * we're converting between equivalent transfer functions, do passthrough */ tmp_info = *in_info; tmp_info.colorimetry.transfer = out_info->colorimetry.transfer; if (gst_video_info_is_equal (&tmp_info, out_info)) { if (gst_video_transfer_function_is_equivalent (in_info-> colorimetry.transfer, in_info->finfo->bits, out_info->colorimetry.transfer, out_info->finfo->bits)) { gstbasetransform_class->passthrough_on_same_caps = FALSE; gst_base_transform_set_passthrough (GST_BASE_TRANSFORM (filter), TRUE); return TRUE; } } gstbasetransform_class->passthrough_on_same_caps = TRUE; gst_base_transform_set_passthrough (GST_BASE_TRANSFORM (filter), FALSE); space->convert = gst_video_converter_new (in_info, out_info, gst_structure_new ("GstVideoConvertConfig", GST_VIDEO_CONVERTER_OPT_DITHER_METHOD, GST_TYPE_VIDEO_DITHER_METHOD, space->dither, GST_VIDEO_CONVERTER_OPT_DITHER_QUANTIZATION, G_TYPE_UINT, space->dither_quantization, GST_VIDEO_CONVERTER_OPT_CHROMA_RESAMPLER_METHOD, GST_TYPE_VIDEO_RESAMPLER_METHOD, space->chroma_resampler, GST_VIDEO_CONVERTER_OPT_ALPHA_MODE, GST_TYPE_VIDEO_ALPHA_MODE, space->alpha_mode, GST_VIDEO_CONVERTER_OPT_ALPHA_VALUE, G_TYPE_DOUBLE, space->alpha_value, GST_VIDEO_CONVERTER_OPT_CHROMA_MODE, GST_TYPE_VIDEO_CHROMA_MODE, space->chroma_mode, GST_VIDEO_CONVERTER_OPT_MATRIX_MODE, GST_TYPE_VIDEO_MATRIX_MODE, space->matrix_mode, GST_VIDEO_CONVERTER_OPT_GAMMA_MODE, GST_TYPE_VIDEO_GAMMA_MODE, space->gamma_mode, GST_VIDEO_CONVERTER_OPT_PRIMARIES_MODE, GST_TYPE_VIDEO_PRIMARIES_MODE, space->primaries_mode, GST_VIDEO_CONVERTER_OPT_THREADS, G_TYPE_UINT, space->n_threads, NULL)); if (space->convert == NULL) goto no_convert; GST_DEBUG_OBJECT (filter, "converting format %s -> %s", gst_video_format_to_string (GST_VIDEO_INFO_FORMAT (in_info)), gst_video_format_to_string (GST_VIDEO_INFO_FORMAT (out_info))); return TRUE; /* ERRORS */ format_mismatch: { GST_ERROR_OBJECT (space, "input and output formats do not match"); return FALSE; } no_convert: { GST_ERROR_OBJECT (space, "could not create converter"); return FALSE; } } static void gst_video_convert_finalize (GObject * obj) { GstVideoConvert *space = GST_VIDEO_CONVERT (obj); if (space->convert) { gst_video_converter_free (space->convert); } G_OBJECT_CLASS (parent_class)->finalize (obj); } static void gst_video_convert_class_init (GstVideoConvertClass * klass) { GObjectClass *gobject_class = (GObjectClass *) klass; GstElementClass *gstelement_class = (GstElementClass *) klass; GstBaseTransformClass *gstbasetransform_class = (GstBaseTransformClass *) klass; GstVideoFilterClass *gstvideofilter_class = (GstVideoFilterClass *) klass; gobject_class->set_property = gst_video_convert_set_property; gobject_class->get_property = gst_video_convert_get_property; gobject_class->finalize = gst_video_convert_finalize; gst_element_class_add_static_pad_template (gstelement_class, &gst_video_convert_src_template); gst_element_class_add_static_pad_template (gstelement_class, &gst_video_convert_sink_template); gst_element_class_set_static_metadata (gstelement_class, "Colorspace converter", "Filter/Converter/Video", "Converts video from one colorspace to another", "GStreamer maintainers "); gstbasetransform_class->transform_caps = GST_DEBUG_FUNCPTR (gst_video_convert_transform_caps); gstbasetransform_class->fixate_caps = GST_DEBUG_FUNCPTR (gst_video_convert_fixate_caps); gstbasetransform_class->filter_meta = GST_DEBUG_FUNCPTR (gst_video_convert_filter_meta); gstbasetransform_class->transform_meta = GST_DEBUG_FUNCPTR (gst_video_convert_transform_meta); gstbasetransform_class->passthrough_on_same_caps = TRUE; gstvideofilter_class->set_info = GST_DEBUG_FUNCPTR (gst_video_convert_set_info); gstvideofilter_class->transform_frame = GST_DEBUG_FUNCPTR (gst_video_convert_transform_frame); g_object_class_install_property (gobject_class, PROP_DITHER, g_param_spec_enum ("dither", "Dither", "Apply dithering while converting", gst_video_dither_method_get_type (), DEFAULT_PROP_DITHER, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_object_class_install_property (gobject_class, PROP_DITHER_QUANTIZATION, g_param_spec_uint ("dither-quantization", "Dither Quantize", "Quantizer to use", 0, G_MAXUINT, DEFAULT_PROP_DITHER_QUANTIZATION, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_object_class_install_property (gobject_class, PROP_CHROMA_RESAMPLER, g_param_spec_enum ("chroma-resampler", "Chroma resampler", "Chroma resampler method", gst_video_resampler_method_get_type (), DEFAULT_PROP_CHROMA_RESAMPLER, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_object_class_install_property (gobject_class, PROP_ALPHA_MODE, g_param_spec_enum ("alpha-mode", "Alpha Mode", "Alpha Mode to use", gst_video_alpha_mode_get_type (), DEFAULT_PROP_ALPHA_MODE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_object_class_install_property (gobject_class, PROP_ALPHA_VALUE, g_param_spec_double ("alpha-value", "Alpha Value", "Alpha Value to use", 0.0, 1.0, DEFAULT_PROP_ALPHA_VALUE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_object_class_install_property (gobject_class, PROP_CHROMA_MODE, g_param_spec_enum ("chroma-mode", "Chroma Mode", "Chroma Resampling Mode", gst_video_chroma_mode_get_type (), DEFAULT_PROP_CHROMA_MODE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_object_class_install_property (gobject_class, PROP_MATRIX_MODE, g_param_spec_enum ("matrix-mode", "Matrix Mode", "Matrix Conversion Mode", gst_video_matrix_mode_get_type (), DEFAULT_PROP_MATRIX_MODE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_object_class_install_property (gobject_class, PROP_GAMMA_MODE, g_param_spec_enum ("gamma-mode", "Gamma Mode", "Gamma Conversion Mode", gst_video_gamma_mode_get_type (), DEFAULT_PROP_GAMMA_MODE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_object_class_install_property (gobject_class, PROP_PRIMARIES_MODE, g_param_spec_enum ("primaries-mode", "Primaries Mode", "Primaries Conversion Mode", gst_video_primaries_mode_get_type (), DEFAULT_PROP_PRIMARIES_MODE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_object_class_install_property (gobject_class, PROP_N_THREADS, g_param_spec_uint ("n-threads", "Threads", "Maximum number of threads to use", 0, G_MAXUINT, DEFAULT_PROP_N_THREADS, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); } static void gst_video_convert_init (GstVideoConvert * space) { space->dither = DEFAULT_PROP_DITHER; space->dither_quantization = DEFAULT_PROP_DITHER_QUANTIZATION; space->chroma_resampler = DEFAULT_PROP_CHROMA_RESAMPLER; space->alpha_mode = DEFAULT_PROP_ALPHA_MODE; space->alpha_value = DEFAULT_PROP_ALPHA_VALUE; space->chroma_mode = DEFAULT_PROP_CHROMA_MODE; space->matrix_mode = DEFAULT_PROP_MATRIX_MODE; space->gamma_mode = DEFAULT_PROP_GAMMA_MODE; space->primaries_mode = DEFAULT_PROP_PRIMARIES_MODE; space->n_threads = DEFAULT_PROP_N_THREADS; } void gst_video_convert_set_property (GObject * object, guint property_id, const GValue * value, GParamSpec * pspec) { GstVideoConvert *csp; csp = GST_VIDEO_CONVERT (object); switch (property_id) { case PROP_DITHER: csp->dither = g_value_get_enum (value); break; case PROP_CHROMA_RESAMPLER: csp->chroma_resampler = g_value_get_enum (value); break; case PROP_ALPHA_MODE: csp->alpha_mode = g_value_get_enum (value); break; case PROP_ALPHA_VALUE: csp->alpha_value = g_value_get_double (value); break; case PROP_CHROMA_MODE: csp->chroma_mode = g_value_get_enum (value); break; case PROP_MATRIX_MODE: csp->matrix_mode = g_value_get_enum (value); break; case PROP_GAMMA_MODE: csp->gamma_mode = g_value_get_enum (value); break; case PROP_PRIMARIES_MODE: csp->primaries_mode = g_value_get_enum (value); break; case PROP_DITHER_QUANTIZATION: csp->dither_quantization = g_value_get_uint (value); break; case PROP_N_THREADS: csp->n_threads = g_value_get_uint (value); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec); break; } } void gst_video_convert_get_property (GObject * object, guint property_id, GValue * value, GParamSpec * pspec) { GstVideoConvert *csp; csp = GST_VIDEO_CONVERT (object); switch (property_id) { case PROP_DITHER: g_value_set_enum (value, csp->dither); break; case PROP_CHROMA_RESAMPLER: g_value_set_enum (value, csp->chroma_resampler); break; case PROP_ALPHA_MODE: g_value_set_enum (value, csp->alpha_mode); break; case PROP_ALPHA_VALUE: g_value_set_double (value, csp->alpha_value); break; case PROP_CHROMA_MODE: g_value_set_enum (value, csp->chroma_mode); break; case PROP_MATRIX_MODE: g_value_set_enum (value, csp->matrix_mode); break; case PROP_GAMMA_MODE: g_value_set_enum (value, csp->gamma_mode); break; case PROP_PRIMARIES_MODE: g_value_set_enum (value, csp->primaries_mode); break; case PROP_DITHER_QUANTIZATION: g_value_set_uint (value, csp->dither_quantization); break; case PROP_N_THREADS: g_value_set_uint (value, csp->n_threads); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec); break; } } static GstFlowReturn gst_video_convert_transform_frame (GstVideoFilter * filter, GstVideoFrame * in_frame, GstVideoFrame * out_frame) { GstVideoConvert *space; space = GST_VIDEO_CONVERT_CAST (filter); GST_CAT_DEBUG_OBJECT (CAT_PERFORMANCE, filter, "doing colorspace conversion from %s -> to %s", GST_VIDEO_INFO_NAME (&filter->in_info), GST_VIDEO_INFO_NAME (&filter->out_info)); gst_video_converter_frame (space->convert, in_frame, out_frame); return GST_FLOW_OK; } static gboolean plugin_init (GstPlugin * plugin) { GST_DEBUG_CATEGORY_INIT (videoconvert_debug, "videoconvert", 0, "Colorspace Converter"); GST_DEBUG_CATEGORY_GET (CAT_PERFORMANCE, "GST_PERFORMANCE"); _colorspace_quark = g_quark_from_static_string ("colorspace"); features_format_interlaced = gst_caps_features_new (GST_CAPS_FEATURE_FORMAT_INTERLACED, NULL); features_format_interlaced_sysmem = gst_caps_features_copy (features_format_interlaced); gst_caps_features_add (features_format_interlaced_sysmem, GST_CAPS_FEATURE_MEMORY_SYSTEM_MEMORY); return gst_element_register (plugin, "videoconvert", GST_RANK_NONE, GST_TYPE_VIDEO_CONVERT); } GST_PLUGIN_DEFINE (GST_VERSION_MAJOR, GST_VERSION_MINOR, videoconvert, "Colorspace conversion", plugin_init, VERSION, GST_LICENSE, GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN)