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GstVP8Enc and GstVP9Enc has almost 80% code in common. created common baseclass GstVPXEnc for GstVP8Enc and GstVP9Enc https://bugzilla.gnome.org/show_bug.cgi?id=755510
244 lines
7.7 KiB
C
244 lines
7.7 KiB
C
/* VP9
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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) 2010-2013 Sebastian Dröge <slomo@circular-chaos.org>
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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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/**
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* SECTION:element-vp9enc
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* @see_also: vp9dec, webmmux, oggmux
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*
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* This element encodes raw video into a VP9 stream.
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* <ulink url="http://www.webmproject.org">VP9</ulink> is a royalty-free
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* video codec maintained by <ulink url="http://www.google.com/">Google
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* </ulink>. It's the successor of On2 VP3, which was the base of the
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* Theora video codec.
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*
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* To control the quality of the encoding, the #GstVP9Enc::target-bitrate,
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* #GstVP9Enc::min-quantizer, #GstVP9Enc::max-quantizer or #GstVP9Enc::cq-level
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* properties can be used. Which one is used depends on the mode selected by
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* the #GstVP9Enc::end-usage property.
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* See <ulink url="http://www.webmproject.org/docs/encoder-parameters/">Encoder Parameters</ulink>
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* for explanation, examples for useful encoding parameters and more details
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* on the encoding parameters.
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*
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* <refsect2>
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* <title>Example pipeline</title>
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* |[
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* gst-launch-1.0 -v videotestsrc num-buffers=1000 ! vp9enc ! webmmux ! filesink location=videotestsrc.webm
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* ]| This example pipeline will encode a test video source to VP9 muxed in an
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* WebM container.
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* </refsect2>
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#ifdef HAVE_VP9_ENCODER
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/* glib decided in 2.32 it would be a great idea to deprecated GValueArray without
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* providing an alternative
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*
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* See https://bugzilla.gnome.org/show_bug.cgi?id=667228
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* */
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#define GLIB_DISABLE_DEPRECATION_WARNINGS
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#include <gst/tag/tag.h>
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#include <gst/video/video.h>
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#include <string.h>
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#include "gstvp8utils.h"
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#include "gstvp9enc.h"
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GST_DEBUG_CATEGORY_STATIC (gst_vp9enc_debug);
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#define GST_CAT_DEFAULT gst_vp9enc_debug
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/* FIXME: Y42B and Y444 do not work yet it seems */
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static GstStaticPadTemplate gst_vp9_enc_sink_template =
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GST_STATIC_PAD_TEMPLATE ("sink",
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GST_PAD_SINK,
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GST_PAD_ALWAYS,
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/*GST_STATIC_CAPS (GST_VIDEO_CAPS_MAKE ("{ I420, YV12, Y42B, Y444 }")) */
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GST_STATIC_CAPS (GST_VIDEO_CAPS_MAKE ("{ I420, YV12 }"))
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);
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static GstStaticPadTemplate gst_vp9_enc_src_template =
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GST_STATIC_PAD_TEMPLATE ("src",
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GST_PAD_SRC,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS ("video/x-vp9, " "profile = (string) {0, 1, 2, 3}")
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);
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#define parent_class gst_vp9_enc_parent_class
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G_DEFINE_TYPE (GstVP9Enc, gst_vp9_enc, GST_TYPE_VPX_ENC);
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static vpx_codec_iface_t *gst_vp9_enc_get_algo (GstVPXEnc * enc);
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static gboolean gst_vp9_enc_enable_scaling (GstVPXEnc * enc);
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static void gst_vp9_enc_set_image_format (GstVPXEnc * enc, vpx_image_t * image);
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static GstCaps *gst_vp9_enc_get_new_simple_caps (GstVPXEnc * enc);
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static void gst_vp9_enc_set_stream_info (GstVPXEnc * enc, GstCaps * caps,
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GstVideoInfo * info);
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static void *gst_vp9_enc_process_frame_user_data (GstVPXEnc * enc,
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GstVideoCodecFrame * frame);
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static GstFlowReturn gst_vp9_enc_handle_invisible_frame_buffer (GstVPXEnc * enc,
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void *user_data, GstBuffer * buffer);
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static void gst_vp9_enc_set_frame_user_data (GstVPXEnc * enc,
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GstVideoCodecFrame * frame, vpx_image_t * image);
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static void
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gst_vp9_enc_class_init (GstVP9EncClass * klass)
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{
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GstElementClass *element_class;
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GstVPXEncClass *vpx_encoder_class;
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element_class = GST_ELEMENT_CLASS (klass);
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vpx_encoder_class = GST_VPX_ENC_CLASS (klass);
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gst_element_class_add_pad_template (element_class,
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gst_static_pad_template_get (&gst_vp9_enc_src_template));
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gst_element_class_add_pad_template (element_class,
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gst_static_pad_template_get (&gst_vp9_enc_sink_template));
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gst_element_class_set_static_metadata (element_class,
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"On2 VP9 Encoder",
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"Codec/Encoder/Video",
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"Encode VP9 video streams", "David Schleef <ds@entropywave.com>, "
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"Sebastian Dröge <sebastian.droege@collabora.co.uk>");
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vpx_encoder_class->get_algo = gst_vp9_enc_get_algo;
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vpx_encoder_class->enable_scaling = gst_vp9_enc_enable_scaling;
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vpx_encoder_class->set_image_format = gst_vp9_enc_set_image_format;
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vpx_encoder_class->get_new_vpx_caps = gst_vp9_enc_get_new_simple_caps;
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vpx_encoder_class->set_stream_info = gst_vp9_enc_set_stream_info;
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vpx_encoder_class->process_frame_user_data =
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gst_vp9_enc_process_frame_user_data;
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vpx_encoder_class->handle_invisible_frame_buffer =
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gst_vp9_enc_handle_invisible_frame_buffer;
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vpx_encoder_class->set_frame_user_data = gst_vp9_enc_set_frame_user_data;
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GST_DEBUG_CATEGORY_INIT (gst_vp9enc_debug, "vp9enc", 0, "VP9 Encoder");
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}
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static void
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gst_vp9_enc_init (GstVP9Enc * gst_vp9_enc)
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{
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vpx_codec_err_t status;
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GstVPXEnc *gst_vpx_enc = GST_VPX_ENC (gst_vp9_enc);
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GST_DEBUG_OBJECT (gst_vp9_enc, "gst_vp9_enc_init");
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status =
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vpx_codec_enc_config_default (gst_vp9_enc_get_algo (gst_vpx_enc),
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&gst_vpx_enc->cfg, 0);
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if (status != VPX_CODEC_OK) {
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GST_ERROR_OBJECT (gst_vpx_enc,
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"Failed to get default encoder configuration: %s",
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gst_vpx_error_name (status));
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gst_vpx_enc->have_default_config = FALSE;
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} else {
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gst_vpx_enc->have_default_config = TRUE;
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}
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}
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static vpx_codec_iface_t *
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gst_vp9_enc_get_algo (GstVPXEnc * enc)
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{
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return &vpx_codec_vp9_cx_algo;
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}
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static gboolean
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gst_vp9_enc_enable_scaling (GstVPXEnc * enc)
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{
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return FALSE;
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}
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static void
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gst_vp9_enc_set_image_format (GstVPXEnc * enc, vpx_image_t * image)
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{
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switch (enc->input_state->info.finfo->format) {
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case GST_VIDEO_FORMAT_I420:
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image->fmt = VPX_IMG_FMT_I420;
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image->bps = 12;
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image->x_chroma_shift = image->y_chroma_shift = 1;
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break;
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case GST_VIDEO_FORMAT_YV12:
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image->fmt = VPX_IMG_FMT_YV12;
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image->bps = 12;
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image->x_chroma_shift = image->y_chroma_shift = 1;
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break;
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case GST_VIDEO_FORMAT_Y42B:
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image->fmt = VPX_IMG_FMT_I422;
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image->bps = 16;
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image->x_chroma_shift = 1;
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image->y_chroma_shift = 0;
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break;
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case GST_VIDEO_FORMAT_Y444:
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image->fmt = VPX_IMG_FMT_I444;
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image->bps = 24;
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image->x_chroma_shift = image->y_chroma_shift = 0;
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break;
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default:
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g_assert_not_reached ();
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break;
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}
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}
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static GstCaps *
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gst_vp9_enc_get_new_simple_caps (GstVPXEnc * enc)
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{
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GstCaps *caps;
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gchar *profile_str = g_strdup_printf ("%d", enc->cfg.g_profile);
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caps = gst_caps_new_simple ("video/x-vp9",
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"profile", G_TYPE_STRING, profile_str, NULL);
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g_free (profile_str);
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return caps;
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}
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static void
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gst_vp9_enc_set_stream_info (GstVPXEnc * enc, GstCaps * caps,
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GstVideoInfo * info)
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{
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return;
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}
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static void *
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gst_vp9_enc_process_frame_user_data (GstVPXEnc * enc,
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GstVideoCodecFrame * frame)
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{
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return NULL;
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}
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static GstFlowReturn
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gst_vp9_enc_handle_invisible_frame_buffer (GstVPXEnc * enc, void *user_data,
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GstBuffer * buffer)
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{
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GstFlowReturn ret;
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g_mutex_unlock (&enc->encoder_lock);
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ret = gst_pad_push (GST_VIDEO_ENCODER_SRC_PAD (enc), buffer);
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g_mutex_lock (&enc->encoder_lock);
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return ret;
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}
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static void
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gst_vp9_enc_set_frame_user_data (GstVPXEnc * enc, GstVideoCodecFrame * frame,
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vpx_image_t * image)
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{
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return;
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}
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#endif /* HAVE_VP9_ENCODER */
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