dlls/winegstreamer/unix_private.h

   1 /*
   2  * winegstreamer Unix library interface
   3  *
   4  * Copyright 2020-2021 Zebediah Figura for CodeWeavers
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #ifndef __WINE_WINEGSTREAMER_UNIX_PRIVATE_H
  22 #define __WINE_WINEGSTREAMER_UNIX_PRIVATE_H
  23
  24 #include "unixlib.h"
  25
  26 #include <stdbool.h>
  27 #include <gst/gst.h>
  28 #include <gst/audio/audio.h>
  29
  30 /* unixlib.c */
  31
  32 GST_DEBUG_CATEGORY_EXTERN(wine);
  33 #define GST_CAT_DEFAULT wine
  34
  35 extern NTSTATUS wg_init_gstreamer(void *args);
  36
  37 extern GstStreamType stream_type_from_caps(GstCaps *caps);
  38 extern GstElement *create_element(const char *name, const char *plugin_set);
  39 GstElement *factory_create_element(GstElementFactory *factory);
  40 extern GList *find_element_factories(GstElementFactoryListType type, GstRank min_rank,
  41         GstCaps *element_sink_caps, GstCaps *element_src_caps);
  42 extern GstElement *find_element(GstElementFactoryListType type,
  43         GstCaps *element_sink_caps, GstCaps *element_src_caps);
  44 extern bool append_element(GstElement *container, GstElement *element, GstElement **first, GstElement **last);
  45 extern bool link_src_to_sink(GstPad *src_pad, GstPad *sink_pad);
  46 extern bool link_src_to_element(GstPad *src_pad, GstElement *element);
  47 extern bool link_element_to_sink(GstElement *element, GstPad *sink_pad);
  48 extern bool push_event(GstPad *pad, GstEvent *event);
  49 extern void set_max_threads(GstElement *element);
  50
  51 /* wg_format.c */
  52
  53 extern void wg_format_from_caps(struct wg_format *format, const GstCaps *caps);
  54 extern bool wg_format_compare(const struct wg_format *a, const struct wg_format *b);
  55 extern GstCaps *wg_format_to_caps(const struct wg_format *format);
  56 extern uint32_t wg_channel_mask_from_gst(const GstAudioInfo *info);
  57
  58 /* wg_transform.c */
  59
  60 extern NTSTATUS wg_transform_create(void *args);
  61 extern NTSTATUS wg_transform_destroy(void *args);
  62 extern NTSTATUS wg_transform_get_output_type(void *args);
  63 extern NTSTATUS wg_transform_set_output_type(void *args);
  64 extern NTSTATUS wg_transform_push_data(void *args);
  65 extern NTSTATUS wg_transform_read_data(void *args);
  66 extern NTSTATUS wg_transform_get_status(void *args);
  67 extern NTSTATUS wg_transform_drain(void *args);
  68 extern NTSTATUS wg_transform_flush(void *args);
  69 extern NTSTATUS wg_transform_notify_qos(void *args);
  70
  71 /* wg_media_type.c */
  72
  73 static inline BOOL is_mf_video_area_empty(const MFVideoArea *area)
  74 {
  75     return !area->OffsetX.value && !area->OffsetY.value && !area->Area.cx && !area->Area.cy;
  76 }
  77
  78 extern GstCaps *caps_from_media_type(const struct wg_media_type *media_type);
  79 extern NTSTATUS caps_to_media_type(GstCaps *caps, struct wg_media_type *media_type,
  80         UINT32 video_plane_align);
  81
  82 /* wg_muxer.c */
  83
  84 extern NTSTATUS wg_muxer_create(void *args);
  85 extern NTSTATUS wg_muxer_destroy(void *args);
  86 extern NTSTATUS wg_muxer_add_stream(void *args);
  87 extern NTSTATUS wg_muxer_start(void *args);
  88 extern NTSTATUS wg_muxer_push_sample(void *args);
  89 extern NTSTATUS wg_muxer_read_data(void *args);
  90 extern NTSTATUS wg_muxer_finalize(void *args);
  91
  92 /* wg_allocator.c */
  93
  94 static inline BYTE *wg_sample_data(struct wg_sample *sample)
  95 {
  96     return (BYTE *)(UINT_PTR)sample->data;
  97 }
  98
  99 /* wg_allocator_release_sample can be used to release any sample that was requested. */
 100 typedef struct wg_sample *(*wg_allocator_request_sample_cb)(gsize size, void *context);
 101 extern GstAllocator *wg_allocator_create(void);
 102 extern void wg_allocator_destroy(GstAllocator *allocator);
 103 extern void wg_allocator_provide_sample(GstAllocator *allocator, struct wg_sample *sample);
 104 extern void wg_allocator_release_sample(GstAllocator *allocator, struct wg_sample *sample,
 105         bool discard_data);
 106
 107 #endif /* __WINE_WINEGSTREAMER_UNIX_PRIVATE_H */