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c50f4477ec
.. and make use of that API in videoaggregator. When setting certain properties, such as cropping or the scaled size of pads, a new converter is created by videoaggregator. Before that patch, this implied spawning new threads, potentially at each aggregate cycle when interpolating pad properties. This is obviously wasteful, and re-using a task pool removes that overhead. Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-base/-/merge_requests/896>
305 lines
9.9 KiB
C
305 lines
9.9 KiB
C
/* Video conversion api function
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* Copyright (C) 2014 Wim Taymans <wim.taymans@gmail.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef __GST_VIDEO_CONVERTER_H__
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#define __GST_VIDEO_CONVERTER_H__
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#include <gst/video/video.h>
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G_BEGIN_DECLS
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/**
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* GST_VIDEO_CONVERTER_OPT_RESAMPLER_METHOD:
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*
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* #GstVideoResamplerMethod, The resampler method to use for
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* resampling. Other options for the resampler can be used, see
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* the #GstVideoResampler. Default is #GST_VIDEO_RESAMPLER_METHOD_CUBIC
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*/
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#define GST_VIDEO_CONVERTER_OPT_RESAMPLER_METHOD "GstVideoConverter.resampler-method"
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/**
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* GST_VIDEO_CONVERTER_OPT_CHROMA_RESAMPLER_METHOD:
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*
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* #GstVideoChromaMethod, The resampler method to use for
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* chroma resampling. Other options for the resampler can be used, see
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* the #GstVideoResampler. Default is #GST_VIDEO_RESAMPLER_METHOD_LINEAR
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*/
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#define GST_VIDEO_CONVERTER_OPT_CHROMA_RESAMPLER_METHOD "GstVideoConverter.chroma-resampler-method"
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/**
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* GST_VIDEO_CONVERTER_OPT_RESAMPLER_TAPS:
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*
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* #G_TYPE_UINT, The number of taps for the resampler.
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* Default is 0: let the resampler choose a good value.
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*/
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#define GST_VIDEO_CONVERTER_OPT_RESAMPLER_TAPS "GstVideoConverter.resampler-taps"
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/**
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* GST_VIDEO_CONVERTER_OPT_DITHER_METHOD:
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*
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* #GstVideoDitherMethod, The dither method to use when
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* changing bit depth.
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* Default is #GST_VIDEO_DITHER_BAYER.
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*/
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#define GST_VIDEO_CONVERTER_OPT_DITHER_METHOD "GstVideoConverter.dither-method"
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/**
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* GST_VIDEO_CONVERTER_OPT_DITHER_QUANTIZATION:
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*
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* #G_TYPE_UINT, The quantization amount to dither to. Components will be
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* quantized to multiples of this value.
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* Default is 1
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*/
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#define GST_VIDEO_CONVERTER_OPT_DITHER_QUANTIZATION "GstVideoConverter.dither-quantization"
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/**
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* GST_VIDEO_CONVERTER_OPT_SRC_X:
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*
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* #G_TYPE_INT, source x position to start conversion, default 0
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*/
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#define GST_VIDEO_CONVERTER_OPT_SRC_X "GstVideoConverter.src-x"
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/**
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* GST_VIDEO_CONVERTER_OPT_SRC_Y:
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*
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* #G_TYPE_INT, source y position to start conversion, default 0
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*/
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#define GST_VIDEO_CONVERTER_OPT_SRC_Y "GstVideoConverter.src-y"
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/**
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* GST_VIDEO_CONVERTER_OPT_SRC_WIDTH:
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*
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* #G_TYPE_INT, source width to convert, default source width
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*/
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#define GST_VIDEO_CONVERTER_OPT_SRC_WIDTH "GstVideoConverter.src-width"
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/**
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* GST_VIDEO_CONVERTER_OPT_SRC_HEIGHT:
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*
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* #G_TYPE_INT, source height to convert, default source height
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*/
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#define GST_VIDEO_CONVERTER_OPT_SRC_HEIGHT "GstVideoConverter.src-height"
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/**
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* GST_VIDEO_CONVERTER_OPT_DEST_X:
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*
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* #G_TYPE_INT, x position in the destination frame, default 0
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*/
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#define GST_VIDEO_CONVERTER_OPT_DEST_X "GstVideoConverter.dest-x"
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/**
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* GST_VIDEO_CONVERTER_OPT_DEST_Y:
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*
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* #G_TYPE_INT, y position in the destination frame, default 0
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*/
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#define GST_VIDEO_CONVERTER_OPT_DEST_Y "GstVideoConverter.dest-y"
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/**
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* GST_VIDEO_CONVERTER_OPT_DEST_WIDTH:
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*
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* #G_TYPE_INT, width in the destination frame, default destination width
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*/
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#define GST_VIDEO_CONVERTER_OPT_DEST_WIDTH "GstVideoConverter.dest-width"
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/**
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* GST_VIDEO_CONVERTER_OPT_DEST_HEIGHT:
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*
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* #G_TYPE_INT, height in the destination frame, default destination height
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*/
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#define GST_VIDEO_CONVERTER_OPT_DEST_HEIGHT "GstVideoConverter.dest-height"
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/**
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* GST_VIDEO_CONVERTER_OPT_FILL_BORDER:
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*
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* #G_TYPE_BOOLEAN, if the destination rectangle does not fill the complete
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* destination image, render a border with
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* #GST_VIDEO_CONVERTER_OPT_BORDER_ARGB. Otherwise the unusded pixels in the
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* destination are untouched. Default %TRUE.
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*/
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#define GST_VIDEO_CONVERTER_OPT_FILL_BORDER "GstVideoConverter.fill-border"
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/**
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* GST_VIDEO_CONVERTER_OPT_ALPHA_VALUE:
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*
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* #G_TYPE_DOUBLE, the alpha color value to use.
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* Default to 1.0
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*/
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#define GST_VIDEO_CONVERTER_OPT_ALPHA_VALUE "GstVideoConverter.alpha-value"
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/**
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* GstVideoAlphaMode:
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* @GST_VIDEO_ALPHA_MODE_COPY: When input and output have alpha, it will be copied.
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* When the input has no alpha, alpha will be set to
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* #GST_VIDEO_CONVERTER_OPT_ALPHA_VALUE
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* @GST_VIDEO_ALPHA_MODE_SET: set all alpha to
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* #GST_VIDEO_CONVERTER_OPT_ALPHA_VALUE
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* @GST_VIDEO_ALPHA_MODE_MULT: multiply all alpha with
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* #GST_VIDEO_CONVERTER_OPT_ALPHA_VALUE.
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* When the input format has no alpha but the output format has, the
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* alpha value will be set to #GST_VIDEO_CONVERTER_OPT_ALPHA_VALUE
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*
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* Different alpha modes.
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*
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* Since: 1.6
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*/
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typedef enum {
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GST_VIDEO_ALPHA_MODE_COPY,
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GST_VIDEO_ALPHA_MODE_SET,
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GST_VIDEO_ALPHA_MODE_MULT
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} GstVideoAlphaMode;
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/**
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* GST_VIDEO_CONVERTER_OPT_ALPHA_MODE:
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*
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* #GstVideoAlphaMode, the alpha mode to use.
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* Default is #GST_VIDEO_ALPHA_MODE_COPY.
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*/
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#define GST_VIDEO_CONVERTER_OPT_ALPHA_MODE "GstVideoConverter.alpha-mode"
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/**
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* GST_VIDEO_CONVERTER_OPT_BORDER_ARGB:
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*
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* #G_TYPE_UINT, the border color to use if #GST_VIDEO_CONVERTER_OPT_FILL_BORDER
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* is set to %TRUE. The color is in ARGB format.
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* Default 0xff000000
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*/
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#define GST_VIDEO_CONVERTER_OPT_BORDER_ARGB "GstVideoConverter.border-argb"
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/**
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* GstVideoChromaMode:
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* @GST_VIDEO_CHROMA_MODE_FULL: do full chroma up and down sampling
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* @GST_VIDEO_CHROMA_MODE_UPSAMPLE_ONLY: only perform chroma upsampling
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* @GST_VIDEO_CHROMA_MODE_DOWNSAMPLE_ONLY: only perform chroma downsampling
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* @GST_VIDEO_CHROMA_MODE_NONE: disable chroma resampling
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*
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* Different chroma downsampling and upsampling modes
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*
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* Since: 1.6
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*/
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typedef enum {
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GST_VIDEO_CHROMA_MODE_FULL,
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GST_VIDEO_CHROMA_MODE_UPSAMPLE_ONLY,
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GST_VIDEO_CHROMA_MODE_DOWNSAMPLE_ONLY,
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GST_VIDEO_CHROMA_MODE_NONE
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} GstVideoChromaMode;
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/**
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* GST_VIDEO_CONVERTER_OPT_CHROMA_MODE:
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*
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* #GstVideoChromaMode, set the chroma resample mode subsampled
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* formats. Default is #GST_VIDEO_CHROMA_MODE_FULL.
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*/
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#define GST_VIDEO_CONVERTER_OPT_CHROMA_MODE "GstVideoConverter.chroma-mode"
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/**
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*GstVideoMatrixMode:
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* @GST_VIDEO_MATRIX_MODE_FULL: do conversion between color matrices
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* @GST_VIDEO_MATRIX_MODE_INPUT_ONLY: use the input color matrix to convert
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* to and from R'G'B
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* @GST_VIDEO_MATRIX_MODE_OUTPUT_ONLY: use the output color matrix to convert
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* to and from R'G'B
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* @GST_VIDEO_MATRIX_MODE_NONE: disable color matrix conversion.
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*
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* Different color matrix conversion modes
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*
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* Since: 1.6
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*/
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typedef enum {
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GST_VIDEO_MATRIX_MODE_FULL,
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GST_VIDEO_MATRIX_MODE_INPUT_ONLY,
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GST_VIDEO_MATRIX_MODE_OUTPUT_ONLY,
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GST_VIDEO_MATRIX_MODE_NONE
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} GstVideoMatrixMode;
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/**
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* GST_VIDEO_CONVERTER_OPT_MATRIX_MODE:
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*
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* #GstVideoMatrixMode, set the color matrix conversion mode for
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* converting between Y'PbPr and non-linear RGB (R'G'B').
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* Default is #GST_VIDEO_MATRIX_MODE_FULL.
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*/
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#define GST_VIDEO_CONVERTER_OPT_MATRIX_MODE "GstVideoConverter.matrix-mode"
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/**
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* GstVideoGammaMode:
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* @GST_VIDEO_GAMMA_MODE_NONE: disable gamma handling
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* @GST_VIDEO_GAMMA_MODE_REMAP: convert between input and output gamma
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* Different gamma conversion modes
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*
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* Since: 1.6
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*/
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typedef enum {
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GST_VIDEO_GAMMA_MODE_NONE,
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GST_VIDEO_GAMMA_MODE_REMAP
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} GstVideoGammaMode;
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/**
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* GST_VIDEO_CONVERTER_OPT_GAMMA_MODE:
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*
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* #GstVideoGammaMode, set the gamma mode.
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* Default is #GST_VIDEO_GAMMA_MODE_NONE.
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*/
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#define GST_VIDEO_CONVERTER_OPT_GAMMA_MODE "GstVideoConverter.gamma-mode"
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/**
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* GstVideoPrimariesMode:
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* @GST_VIDEO_PRIMARIES_MODE_NONE: disable conversion between primaries
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* @GST_VIDEO_PRIMARIES_MODE_MERGE_ONLY: do conversion between primaries only
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* when it can be merged with color matrix conversion.
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* @GST_VIDEO_PRIMARIES_MODE_FAST: fast conversion between primaries
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*
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* Different primaries conversion modes
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*
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* Since: 1.6
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*/
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typedef enum {
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GST_VIDEO_PRIMARIES_MODE_NONE,
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GST_VIDEO_PRIMARIES_MODE_MERGE_ONLY,
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GST_VIDEO_PRIMARIES_MODE_FAST
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} GstVideoPrimariesMode;
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/**
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* GST_VIDEO_CONVERTER_OPT_PRIMARIES_MODE:
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*
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* #GstVideoPrimariesMode, set the primaries conversion mode.
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* Default is #GST_VIDEO_PRIMARIES_MODE_NONE.
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*/
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#define GST_VIDEO_CONVERTER_OPT_PRIMARIES_MODE "GstVideoConverter.primaries-mode"
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/**
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* GST_VIDEO_CONVERTER_OPT_THREADS:
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*
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* #G_TYPE_UINT, maximum number of threads to use. Default 1, 0 for the number
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* of cores.
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*/
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#define GST_VIDEO_CONVERTER_OPT_THREADS "GstVideoConverter.threads"
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typedef struct _GstVideoConverter GstVideoConverter;
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GST_VIDEO_API
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GstVideoConverter * gst_video_converter_new (GstVideoInfo *in_info,
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GstVideoInfo *out_info,
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GstStructure *config);
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GST_VIDEO_API
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GstVideoConverter * gst_video_converter_new_with_pool (GstVideoInfo * in_info,
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GstVideoInfo * out_info,
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GstStructure * config,
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GstTaskPool * pool);
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GST_VIDEO_API
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void gst_video_converter_free (GstVideoConverter * convert);
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GST_VIDEO_API
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gboolean gst_video_converter_set_config (GstVideoConverter * convert, GstStructure *config);
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GST_VIDEO_API
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const GstStructure * gst_video_converter_get_config (GstVideoConverter * convert);
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GST_VIDEO_API
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void gst_video_converter_frame (GstVideoConverter * convert,
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const GstVideoFrame *src, GstVideoFrame *dest);
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G_END_DECLS
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#endif /* __GST_VIDEO_CONVERTER_H__ */
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