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/* GStreamer NVENC plugin
* Copyright (C) 2015 Centricular Ltd
*
* 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_NV_BASE_ENC_H_INCLUDED__
#define __GST_NV_BASE_ENC_H_INCLUDED__
#include "gstnvenc.h"
#include <gst/video/gstvideoencoder.h>
#define GST_TYPE_NV_BASE_ENC \
(gst_nv_base_enc_get_type())
#define GST_NV_BASE_ENC(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_NV_BASE_ENC,GstNvBaseEnc))
#define GST_NV_BASE_ENC_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_NV_BASE_ENC,GstNvBaseEncClass))
#define GST_NV_BASE_ENC_GET_CLASS(obj) \
(G_TYPE_INSTANCE_GET_CLASS((obj),GST_TYPE_NV_BASE_ENC,GstNvBaseEncClass))
#define GST_IS_NV_BASE_ENC(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_NV_BASE_ENC))
#define GST_IS_NV_BASE_ENC_CLASS(obj) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_NV_BASE_ENC))
typedef struct {
GstVideoEncoder video_encoder;
/* properties */
guint cuda_device_id;
CUcontext cuda_ctx;
void * encoder;
/* the supported input formats */
GValue * input_formats; /* OBJECT LOCK */
GstVideoCodecState *input_state;
gboolean gl_input;
/* allocated buffers */
gpointer *input_bufs; /* array of n_allocs input buffers */
NV_ENC_OUTPUT_PTR *output_bufs; /* array of n_allocs output buffers */
guint n_bufs;
/* input and output buffers currently available */
GAsyncQueue *in_bufs_pool;
GAsyncQueue *bitstream_pool;
/* output bufs in use (input bufs in use are tracked via the codec frames) */
GAsyncQueue *bitstream_queue;
/* we spawn a thread that does the (blocking) waits for output buffers
* to become available, so we can continue to feed data to the encoder
* while we wait */
GThread *bitstream_thread;
/* supported interlacing input modes.
* 0 = none, 1 = fields, 2 = interleaved */
gint interlace_modes;
void *display; /* GstGLDisplay */
void *other_context; /* GstGLContext */
/* the maximum buffer size the encoder is configured for */
guint max_encode_width;
guint max_encode_height;
GstVideoInfo input_info; /* buffer configuration for buffers sent to NVENC */
GstFlowReturn last_flow; /* ATOMIC */
} GstNvBaseEnc;
typedef struct {
GstVideoEncoderClass video_encoder_class;
GUID codec_id;
gboolean (*initialize_encoder) (GstNvBaseEnc * nvenc,
GstVideoCodecState * old_state,
GstVideoCodecState * state);
gboolean (*set_src_caps) (GstNvBaseEnc * nvenc,
GstVideoCodecState * state);
gboolean (*set_pic_params) (GstNvBaseEnc * nvenc,
GstVideoCodecFrame * frame,
NV_ENC_PIC_PARAMS * pic_params);
} GstNvBaseEncClass;
G_GNUC_INTERNAL
GType gst_nv_base_enc_get_type (void);
void gst_nv_base_enc_get_max_encode_size (GstNvBaseEnc * nvenc,
guint * max_width,
guint * max_height);
void gst_nv_base_enc_set_max_encode_size (GstNvBaseEnc * nvenc,
guint max_width,
guint max_height);
#endif /* __GST_NV_BASE_ENC_H_INCLUDED__ */