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