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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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1f080391ed
The purpose of this refactor is to hide decoding code from public API. Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/6723>
202 lines
7.9 KiB
C
202 lines
7.9 KiB
C
/*
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* GStreamer
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* Copyright (C) 2023 Igalia, S.L.
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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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#pragma once
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#include <gst/vulkan/gstvkqueue.h>
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G_BEGIN_DECLS
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#define GST_TYPE_VULKAN_DECODER (gst_vulkan_decoder_get_type())
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#define GST_VULKAN_DECODER(o) (G_TYPE_CHECK_INSTANCE_CAST((o), GST_TYPE_VULKAN_DECODER, GstVulkanDecoder))
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#define GST_VULKAN_DECODER_CLASS(k) (G_TYPE_CHECK_CLASS_CAST((k), GST_TYPE_VULKAN_DECODER, GstVulkanDecoderClass))
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#define GST_IS_VULKAN_DECODER(o) (G_TYPE_CHECK_INSTANCE_TYPE((o), GST_TYPE_VULKAN_DECODER))
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#define GST_IS_VULKAN_DECODER_CLASS(k) (G_TYPE_CHECK_CLASS_TYPE((k), GST_TYPE_VULKAN_DECODER))
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#define GST_VULKAN_DECODER_GET_CLASS(o) (G_TYPE_INSTANCE_GET_CLASS((o), GST_TYPE_VULKAN_DECODER, GstVulkanDecoderClass))
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GST_VULKAN_API
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GType gst_vulkan_decoder_get_type (void);
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typedef struct _GstVulkanDecoder GstVulkanDecoder;
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typedef struct _GstVulkanDecoderClass GstVulkanDecoderClass;
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typedef struct _GstVulkanDecoderPicture GstVulkanDecoderPicture;
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typedef union _GstVulkanDecoderParameters GstVulkanDecoderParameters;
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/**
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* GstVulkanDecoderPicture:
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* @out: output buffer
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* @dpb: DPB representation of @out if needed by driver
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* @img_view_ref: image view for reference
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* @img_view_out: image view for output
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* @slice_offs: array of offsets of each uploaded slice
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* @refs: references required to decode current pictures
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*
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* It contains the whole state for decoding a single picture.
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*
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* Since: 1.24
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*/
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struct _GstVulkanDecoderPicture
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{
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GstBuffer *out;
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GstBuffer *dpb; /* only used for out-of-place decoding */
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GstVulkanImageView *img_view_ref; /* Image representation view (reference) */
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GstVulkanImageView *img_view_out; /* Image representation view (output-only) */
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GArray *slice_offs;
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/* Picture refs. H264 has the maximum number of refs (36) of any supported
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* codec. */
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GstVulkanDecoderPicture *refs[36];
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/*< private >*/
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VkVideoPictureResourceInfoKHR pics_res[36];
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VkVideoReferenceSlotInfoKHR slots[36];
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/* Current picture */
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VkVideoPictureResourceInfoKHR pic_res;
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VkVideoReferenceSlotInfoKHR slot;
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/* Main decoding struct */
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VkVideoDecodeInfoKHR decode_info;
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};
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/**
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* GstVulkanDecoder:
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* @parent: the parent #GstObject
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* @queue: the #GstVulkanQueue to command buffers will be allocated from
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* @codec: the configured video codec operation
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* @profile: the configured #GstVulkanVideoProfile
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* @input_buffer: the buffer to upload the bitstream to decode
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* @dedicated_dpb: if decoder needs a dedicated DPB
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* @layered_dpb: if decoder's dedicated DPB has to be a layered image
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*
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* Since: 1.24
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**/
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struct _GstVulkanDecoder
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{
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GstObject parent;
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GstVulkanQueue *queue;
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guint codec;
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GstVulkanVideoProfile profile;
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GstBuffer *input_buffer;
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GstBuffer *layered_buffer;
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gboolean dedicated_dpb;
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gboolean layered_dpb;
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/*< private >*/
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gpointer _reserved [GST_PADDING];
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};
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/**
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* GstVulkanDecoderClass:
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* @parent_class: the parent #GstObjectClass
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*
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* Since: 1.24
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*/
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struct _GstVulkanDecoderClass
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{
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GstObjectClass parent;
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/*< private >*/
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gpointer _reserved [GST_PADDING];
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};
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/**
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* GstVulkanDecoderParameters:
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*
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* Codec specific parameters.
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*
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* Since: 1.24
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*/
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union _GstVulkanDecoderParameters
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{
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/*< private >*/
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VkVideoDecodeH264SessionParametersCreateInfoKHR h264;
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VkVideoDecodeH265SessionParametersCreateInfoKHR h265;
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};
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G_DEFINE_AUTOPTR_CLEANUP_FUNC (GstVulkanDecoder, gst_object_unref)
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GST_VULKAN_API
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GstVulkanDecoder * gst_vulkan_decoder_new_from_queue (GstVulkanQueue * queue,
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guint codec);
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GST_VULKAN_API
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gboolean gst_vulkan_decoder_start (GstVulkanDecoder * self,
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GstVulkanVideoProfile * profile,
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GError ** error);
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GST_VULKAN_API
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gboolean gst_vulkan_decoder_stop (GstVulkanDecoder * self);
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GST_VULKAN_API
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gboolean gst_vulkan_decoder_update_video_session_parameters
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(GstVulkanDecoder * self,
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GstVulkanDecoderParameters * params,
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GError ** error);
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GST_VULKAN_API
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gboolean gst_vulkan_decoder_create_dpb_pool (GstVulkanDecoder * self,
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GstCaps * caps);
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GST_VULKAN_API
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gboolean gst_vulkan_decoder_flush (GstVulkanDecoder * self,
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GError ** error);
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GST_VULKAN_API
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gboolean gst_vulkan_decoder_decode (GstVulkanDecoder * self,
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GstVulkanDecoderPicture * pic,
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GError ** error);
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GST_VULKAN_API
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gboolean gst_vulkan_decoder_is_started (GstVulkanDecoder * self);
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GST_VULKAN_API
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gboolean gst_vulkan_decoder_caps (GstVulkanDecoder * self,
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GstVulkanVideoCapabilities * caps);
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GST_VULKAN_API
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gboolean gst_vulkan_decoder_out_format (GstVulkanDecoder * self,
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VkVideoFormatPropertiesKHR * format);
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GST_VULKAN_API
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GstCaps * gst_vulkan_decoder_profile_caps (GstVulkanDecoder * self);
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GST_VULKAN_API
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gboolean gst_vulkan_decoder_update_ycbcr_sampler (GstVulkanDecoder * self,
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VkSamplerYcbcrRange range,
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VkChromaLocation xloc,
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VkChromaLocation yloc,
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GError ** error);
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GST_VULKAN_API
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GstVulkanImageView * gst_vulkan_decoder_picture_create_view (GstVulkanDecoder * self,
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GstBuffer * buf,
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gboolean is_out);
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GST_VULKAN_API
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gboolean gst_vulkan_decoder_picture_init (GstVulkanDecoder * self,
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GstVulkanDecoderPicture * pic,
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GstBuffer * out);
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GST_VULKAN_API
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void gst_vulkan_decoder_picture_release (GstVulkanDecoderPicture * pic);
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GST_VULKAN_API
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gboolean gst_vulkan_decoder_append_slice (GstVulkanDecoder * self,
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GstVulkanDecoderPicture * pic,
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const guint8 * data,
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size_t size,
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gboolean add_startcode);
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GST_VULKAN_API
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gboolean gst_vulkan_decoder_wait (GstVulkanDecoder * self);
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G_END_DECLS
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