gstreamer/subprojects/gst-libav/ext/libav/gstavviddec.h
Nicolas Dufresne 99ec53073a avviddec: Introduce a class for shared properties
Without a parent class,the documentation would need to be duplicated for
every CODECs. This patch adds an abstract class in between GstVideoDecoder
and the element.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3311>
2022-11-02 19:23:14 +00:00

112 lines
3.2 KiB
C

/* GStreamer
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
*
* 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.
*/
#ifndef __GST_FFMPEGVIDDEC_H__
#define __GST_FFMPEGVIDDEC_H__
#include <gst/gst.h>
#include <gst/video/video.h>
#include <libavcodec/avcodec.h>
G_BEGIN_DECLS
#define GST_TYPE_FFMPEGVIDDEC (gst_ffmpegviddec_get_type())
#define GST_FFMPEGVIDDEC(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_FFMPEGVIDDEC,GstFFMpegVidDec))
#define GST_FFMPEGVIDDEC_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_FFMPEGVIDDEC,GstFFMpegVidDecClass))
#define GST_FFMPEGVIDDEC_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_FFMPEGVIDDEC, GstFFMpegVidDecClass))
#define GST_IS_FFMPEGVIDDEC(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_FFMPEGVIDDEC))
#define GST_IS_FFMPEGVIDDEC_CLASS(obj) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_FFMPEGVIDDEC))
/**
* GstFFMpegVidDec:
*
* The #GstFFMpegVidDec data structure.
*
* Since: 1.22
*/
typedef struct _GstFFMpegVidDec GstFFMpegVidDec;
struct _GstFFMpegVidDec
{
GstVideoDecoder parent;
GstVideoCodecState *input_state;
GstVideoCodecState *output_state;
/* decoding */
AVCodecContext *context;
AVFrame *picture;
GstVideoMultiviewMode picture_multiview_mode;
GstVideoMultiviewFlags picture_multiview_flags;
gint stride[AV_NUM_DATA_POINTERS];
gboolean opened;
/* current output pictures */
enum AVPixelFormat pic_pix_fmt;
gint pic_width;
gint pic_height;
gint pic_par_n;
gint pic_par_d;
gint pic_interlaced;
/* GST_VIDEO_BUFFER_FLAG_RFF | GST_VIDEO_BUFFER_FLAG_TFF */
gint pic_field_order;
gboolean pic_field_order_changed;
GstVideoMultiviewMode cur_multiview_mode;
GstVideoMultiviewFlags cur_multiview_flags;
/* current context */
gint ctx_ticks;
gint ctx_time_d;
gint ctx_time_n;
GstBuffer *palette;
guint8 *padded;
gint padded_size;
/* some properties */
enum AVDiscard skip_frame;
gint lowres;
gboolean direct_rendering;
int max_threads;
gboolean output_corrupt;
guint thread_type;
GstAvCodecCompliance std_compliance;
GstCaps *last_caps;
/* Internally used for direct rendering */
GstBufferPool *internal_pool;
gint pool_width;
gint pool_height;
enum AVPixelFormat pool_format;
GstVideoInfo pool_info;
};
typedef struct _GstFFMpegVidDecClass GstFFMpegVidDecClass;
struct _GstFFMpegVidDecClass
{
GstVideoDecoderClass parent_class;
const AVCodec *in_plugin;
};
GType gst_ffmpegviddec_get_type (void);
G_END_DECLS
#endif