| /* GStreamer |
| * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu> |
| * This file: |
| * Copyright (C) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net> |
| * Copyright (C) 2010 David Schleef <ds@schleef.org> |
| * |
| * 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 <gst/video/video.h> |
| #include <gst/video/gstvideometa.h> |
| #include <gst/video/gstvideopool.h> |
| |
| #include <string.h> |
| |
| GST_DEBUG_CATEGORY (videoconvert_debug); |
| #define GST_CAT_DEFAULT videoconvert_debug |
| GST_DEBUG_CATEGORY_STATIC (CAT_PERFORMANCE); |
| |
| GType gst_video_convert_get_type (void); |
| |
| 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); |
| |
| /* 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_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 prefered 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 prefered, if we can we would convert to PAL instead |
| * of GRAY, though |
| * less subsampling is prefered 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 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); |
| } |
| } |
| |
| return result; |
| } |
| |
| static gboolean |
| gst_video_convert_filter_meta (GstBaseTransform * trans, GstQuery * query, |
| GType api, const GstStructure * params) |
| { |
| /* propose all 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; |
| |
| 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; |
| |
| |
| 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 ("reconfigured %d %d", GST_VIDEO_INFO_FORMAT (in_info), |
| 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 <gstreamer-devel@lists.freedesktop.org>"); |
| |
| 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"); |
| |
| 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) |