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7b390a8bbd
As part of this also change the default bitrate value to 0. The default value was 256000 previously. In reality, if the property was not set the bitrate value would be scaled according to the resolution which is not very intuitive behavior. It is better to use 0 for this purpose. Now together with newly introduced property "bits-per-pixel" 0 means to assign the bitrate according to resolution/framerate. The default bitrates are now - 1.2Mbps for VP8 720p@30fps - 0.8Mbps for VP9 720p@30fps and scaled accordingly for different resolutions/framerates. Previously the default bitrate was also not scaled according to the framerate but only took the resolution into account. This also fixes the side effect of setting bitrate to 0. Previously encoder would not produce any data at all. Addition from Sebastian Dröge <sebastian@centricular.com> to assume 30fps if no framerate is given in the caps instead of not calculating any bitrate at all. Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-good/-/merge_requests/611>
145 lines
4.2 KiB
C
145 lines
4.2 KiB
C
/* VP8
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* Copyright (C) 2006 David Schleef <ds@schleef.org>
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* Copyright (C) 2010 Entropy Wave Inc
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* Copyright (C) 2010 Sebastian Dröge <sebastian.droege@collabora.co.uk>
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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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*/
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#ifndef __GST_VPX_ENC_H__
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#define __GST_VPX_ENC_H__
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#if defined(HAVE_VP8_ENCODER) || defined(HAVE_VP9_ENCODER)
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#include <gst/gst.h>
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#include <gst/video/gstvideoencoder.h>
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/* FIXME: Undef HAVE_CONFIG_H because vpx_codec.h uses it,
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* which causes compilation failures */
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#ifdef HAVE_CONFIG_H
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#undef HAVE_CONFIG_H
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#endif
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#include <vpx/vpx_encoder.h>
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#include <vpx/vp8cx.h>
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G_BEGIN_DECLS
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#define GST_TYPE_VPX_ENC \
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(gst_vpx_enc_get_type())
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#define GST_VPX_ENC(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_VPX_ENC,GstVPXEnc))
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#define GST_VPX_ENC_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_VPX_ENC,GstVPXEncClass))
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#define GST_IS_VPX_ENC(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_VPX_ENC))
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#define GST_IS_VPX_ENC_CLASS(obj) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_VPX_ENC))
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#define GST_VPX_ENC_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_VPX_ENC, GstVPXEncClass))
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typedef struct _GstVPXEnc GstVPXEnc;
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typedef struct _GstVPXEncClass GstVPXEncClass;
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struct _GstVPXEnc
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{
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GstVideoEncoder base_video_encoder;
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/* < private > */
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vpx_codec_ctx_t encoder;
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GMutex encoder_lock;
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/* properties */
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vpx_codec_enc_cfg_t cfg;
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gboolean have_default_config;
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gboolean rc_target_bitrate_auto;
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gint n_ts_target_bitrate;
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gint n_ts_rate_decimator;
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gint n_ts_layer_id;
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/* Global two-pass options */
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gchar *multipass_cache_file;
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gchar *multipass_cache_prefix;
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guint multipass_cache_idx;
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GByteArray *first_pass_cache_content;
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/* Encode parameter */
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gint64 deadline;
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/* Controls */
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VPX_SCALING_MODE h_scaling_mode;
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VPX_SCALING_MODE v_scaling_mode;
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int cpu_used;
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gboolean enable_auto_alt_ref;
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unsigned int noise_sensitivity;
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unsigned int sharpness;
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unsigned int static_threshold;
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vp8e_token_partitions token_partitions;
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unsigned int arnr_maxframes;
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unsigned int arnr_strength;
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unsigned int arnr_type;
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vp8e_tuning tuning;
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unsigned int cq_level;
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unsigned int max_intra_bitrate_pct;
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/* Timebase - a value of 0 will use the framerate */
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unsigned int timebase_n;
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unsigned int timebase_d;
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/* Bits per Pixel */
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gfloat bits_per_pixel;
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/* state */
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gboolean inited;
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vpx_image_t image;
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GstClockTime last_pts;
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GstVideoCodecState *input_state;
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};
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struct _GstVPXEncClass
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{
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GstVideoEncoderClass base_video_encoder_class;
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/*virtual function to get supported algo*/
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vpx_codec_iface_t* (*get_algo) (GstVPXEnc *enc);
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/*enabled scaling*/
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gboolean (*enable_scaling) (GstVPXEnc *enc);
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/*set image format info*/
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void (*set_image_format) (GstVPXEnc *enc, vpx_image_t *image);
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/*get new simple caps*/
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GstCaps* (*get_new_vpx_caps) (GstVPXEnc *enc);
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/*set stream info*/
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void (*set_stream_info) (GstVPXEnc *enc, GstCaps *caps, GstVideoInfo *info);
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/*process user data*/
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void* (*process_frame_user_data) (GstVPXEnc *enc, GstVideoCodecFrame* frame);
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/*set frame user data*/
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void (*set_frame_user_data) (GstVPXEnc *enc, GstVideoCodecFrame* frame, vpx_image_t *image);
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/*Handle invisible frame*/
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GstFlowReturn (*handle_invisible_frame_buffer) (GstVPXEnc *enc, void* user_data, GstBuffer* buffer);
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};
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GType gst_vpx_enc_get_type (void);
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G_DEFINE_AUTOPTR_CLEANUP_FUNC (GstVPXEnc, gst_object_unref)
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G_END_DECLS
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#endif
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#endif /* __GST_VPX_ENC_H__ */
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