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195 lines
6 KiB
C
195 lines
6 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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#include <gst/cuda/gstcuda.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 enum {
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GST_NV_PRESET_DEFAULT,
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GST_NV_PRESET_HP,
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GST_NV_PRESET_HQ,
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/* FIXME: problematic GST_NV_PRESET_BD, */
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GST_NV_PRESET_LOW_LATENCY_DEFAULT,
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GST_NV_PRESET_LOW_LATENCY_HQ,
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GST_NV_PRESET_LOW_LATENCY_HP,
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GST_NV_PRESET_LOSSLESS_DEFAULT,
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GST_NV_PRESET_LOSSLESS_HP,
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} GstNvPreset;
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typedef enum {
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GST_NV_RC_MODE_DEFAULT,
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GST_NV_RC_MODE_CONSTQP,
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GST_NV_RC_MODE_CBR,
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GST_NV_RC_MODE_VBR,
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GST_NV_RC_MODE_VBR_MINQP,
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GST_NV_RC_MODE_CBR_LOWDELAY_HQ,
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GST_NV_RC_MODE_CBR_HQ,
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GST_NV_RC_MODE_VBR_HQ,
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} GstNvRCMode;
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typedef enum
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{
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GST_NVENC_MEM_TYPE_SYSTEM = 0,
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GST_NVENC_MEM_TYPE_GL,
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GST_NVENC_MEM_TYPE_CUDA,
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/* FIXME: add support D3D11 memory */
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} GstNvEncMemType;
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typedef struct {
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gboolean weighted_prediction;
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gint rc_modes;
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gboolean custom_vbv_bufsize;
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gboolean lookahead;
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gboolean temporal_aq;
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gint bframes;
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} GstNvEncDeviceCaps;
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typedef struct {
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gint qp_i;
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gint qp_p;
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gint qp_b;
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} GstNvEncQP;
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typedef struct {
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GstVideoEncoder video_encoder;
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/* properties */
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GstNvPreset preset_enum;
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GUID selected_preset;
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GstNvRCMode rate_control_mode;
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gint qp_min;
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GstNvEncQP qp_min_detail;
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gint qp_max;
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GstNvEncQP qp_max_detail;
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gint qp_const;
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GstNvEncQP qp_const_detail;
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guint bitrate;
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gint gop_size;
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guint max_bitrate;
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gboolean spatial_aq;
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guint aq_strength;
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gboolean non_refp;
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/* zero reorder delay (consistent naming with x264) */
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gboolean zerolatency;
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gboolean strict_gop;
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gdouble const_quality;
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gboolean i_adapt;
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GstCudaContext * cuda_ctx;
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GstCudaStream * stream;
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void * encoder;
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NV_ENC_INITIALIZE_PARAMS init_params;
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NV_ENC_CONFIG config;
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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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gint reconfig; /* ATOMIC */
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GstNvEncMemType mem_type;
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/* array of allocated input/output buffers (GstNvEncFrameState),
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* and hold the ownership of the GstNvEncFrameState. */
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GArray *items;
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/* (GstNvEncFrameState) available empty items which could be submitted
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* to encoder */
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GAsyncQueue *available_queue;
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/* (GstNvEncFrameState) submitted to encoder but not ready to finish
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* (due to bframe or lookhead operation) */
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GAsyncQueue *pending_queue;
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/* (GstNvEncFrameState) submitted to encoder and ready to finish.
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* finished items will go back to available item queue */
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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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GstObject *display; /* GstGLDisplay */
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GstObject *other_context; /* GstGLContext */
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GstObject *gl_context; /* GstGLContext */
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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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/* the first frame when bframe was enabled */
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GstVideoCodecFrame *first_frame;
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GstClockTime dts_offset;
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/*< protected >*/
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/* device capability dependent properties, set by subclass */
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gboolean weighted_pred;
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guint vbv_buffersize;
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guint rc_lookahead;
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gboolean temporal_aq;
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guint bframes;
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gboolean b_adapt;
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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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guint cuda_device_id;
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GstNvEncDeviceCaps device_caps;
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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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gboolean (*set_encoder_config) (GstNvBaseEnc * nvenc,
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GstVideoCodecState * state,
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NV_ENC_CONFIG * config);
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} GstNvBaseEncClass;
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GType gst_nv_base_enc_get_type (void);
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GType gst_nv_base_enc_register (const char * codec,
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guint device_id,
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GstNvEncDeviceCaps * device_caps);
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void gst_nv_base_enc_schedule_reconfig (GstNvBaseEnc * nvenc);
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#endif /* __GST_NV_BASE_ENC_H_INCLUDED__ */
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