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f8711239e4
This controls the number of frames allowed in the compression window. Not all encoders and implementations support it; I've only managed to successfully use it with ProRes. Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/7232>
122 lines
3.2 KiB
C
122 lines
3.2 KiB
C
/*
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* Copyright (C) 2010 Ole André Vadla Ravnås <oleavr@soundrop.com>
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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_VTENC_H__
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#define __GST_VTENC_H__
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#include <gst/gst.h>
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#include <gst/base/gstqueuearray.h>
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#include <gst/codecparsers/gsth264parser.h>
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#include <gst/video/video.h>
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#include <VideoToolbox/VideoToolbox.h>
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G_BEGIN_DECLS
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#define GST_VTENC_CAST(obj) \
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((GstVTEnc *) (obj))
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#define GST_VTENC_CLASS_GET_CODEC_DETAILS(klass) \
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((const GstVTEncoderDetails *) g_type_get_qdata (G_OBJECT_CLASS_TYPE (klass), \
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GST_VTENC_CODEC_DETAILS_QDATA))
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/**
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* GstVtencRateControl:
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* @GST_VTENC_RATE_CONTROL_ABR: average (variable) bitrate
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* @GST_VTENC_RATE_CONTROL_CBR: constant bitrate
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*
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* Since: 1.26
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*/
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typedef enum
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{
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GST_VTENC_RATE_CONTROL_ABR,
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GST_VTENC_RATE_CONTROL_CBR,
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} GstVtencRateControl;
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typedef struct _GstVTEncoderDetails GstVTEncoderDetails;
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typedef struct _GstVTEncClassParams GstVTEncClassParams;
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typedef struct _GstVTEncClass GstVTEncClass;
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typedef struct _GstVTEnc GstVTEnc;
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struct _GstVTEncoderDetails
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{
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const gchar * name;
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const gchar * element_name;
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const gchar * mimetype;
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CMVideoCodecType format_id;
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gboolean require_hardware;
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};
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struct _GstVTEncClass
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{
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GstVideoEncoderClass parent_class;
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};
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struct _GstVTEnc
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{
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GstVideoEncoder parent;
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const GstVTEncoderDetails * details;
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CMVideoCodecType specific_format_id;
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CFStringRef profile_level;
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GstH264Profile h264_profile;
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guint bitrate;
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guint max_bitrate;
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float bitrate_window;
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gboolean allow_frame_reordering;
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gboolean realtime;
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gdouble quality;
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gint max_keyframe_interval;
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GstClockTime max_keyframe_interval_duration;
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gint max_frame_delay;
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gint latency_frames;
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gboolean preserve_alpha;
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GstVtencRateControl rate_control;
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gboolean dump_properties;
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gboolean dump_attributes;
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gboolean have_field_order;
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GstVideoCodecState *input_state;
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GstVideoInfo video_info;
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VTCompressionSessionRef session;
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CFDictionaryRef keyframe_props;
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GstClockTime dts_offset;
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GstVecDeque * output_queue;
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/* Protects output_queue, is_flushing and pause_task */
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GMutex queue_mutex;
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GCond queue_cond;
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/* Temporary workaround for HEVCWithAlpha encoder not throttling input */
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GMutex encoding_mutex;
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GCond encoding_cond;
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/* downstream_ret is protected by the STREAM_LOCK */
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GstFlowReturn downstream_ret;
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gboolean negotiate_downstream;
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gboolean is_flushing;
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gboolean pause_task;
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};
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void gst_vtenc_register_elements (GstPlugin * plugin);
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G_END_DECLS
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#endif /* __GST_VTENC_H__ */
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