/* VP9 * Copyright (C) 2006 David Schleef * Copyright (C) 2008,2009,2010 Entropy Wave Inc * Copyright (C) 2010-2013 Sebastian Dröge * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Library General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Library General Public License for more details. * * You should have received a copy of the GNU Library General Public * License along with this library; if not, write to the * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, * Boston, MA 02110-1301, USA. * */ /** * SECTION:element-vp9dec * @title: vp9dec * @see_also: vp9enc, matroskademux * * This element decodes VP9 streams into raw video. * [VP9](http://www.webmproject.org) is a royalty-free video codec maintained by * [Google](http://www.google.com/) It's the successor of On2 VP3, which was the * base of the Theora video codec. * * ## Example pipeline * |[ * gst-launch-1.0 -v filesrc location=videotestsrc.webm ! matroskademux ! vp9dec ! videoconvert ! videoscale ! autovideosink * ]| This example pipeline will decode a WebM stream and decodes the VP9 video. * */ #ifdef HAVE_CONFIG_H #include "config.h" #endif #ifdef HAVE_VP9_DECODER #include #include "gstvp8utils.h" #include "gstvp9dec.h" #include #include GST_DEBUG_CATEGORY_STATIC (gst_vp9dec_debug); #define GST_CAT_DEFAULT gst_vp9dec_debug #define VP9_DECODER_VIDEO_TAG "VP9 video" static void gst_vp9_dec_set_stream_info (GstVPXDec * dec, vpx_codec_stream_info_t * stream_info); static gboolean gst_vp9_dec_get_valid_format (GstVPXDec * dec, vpx_image_t * img, GstVideoFormat * fmt); static void gst_vp9_dec_handle_resolution_change (GstVPXDec * dec, vpx_image_t * img, GstVideoFormat fmt); static GstStaticPadTemplate gst_vp9_dec_sink_template = GST_STATIC_PAD_TEMPLATE ("sink", GST_PAD_SINK, GST_PAD_ALWAYS, GST_STATIC_CAPS ("video/x-vp9") ); static GstStaticPadTemplate gst_vp9_dec_src_template = GST_STATIC_PAD_TEMPLATE ("src", GST_PAD_SRC, GST_PAD_ALWAYS, GST_STATIC_CAPS (GST_VIDEO_CAPS_MAKE ("{ I420, YV12, Y42B, Y444, GBR, I420_10LE }")) ); #define parent_class gst_vp9_dec_parent_class G_DEFINE_TYPE (GstVP9Dec, gst_vp9_dec, GST_TYPE_VPX_DEC); static void gst_vp9_dec_class_init (GstVP9DecClass * klass) { GstElementClass *element_class; GstVPXDecClass *vpx_class; element_class = GST_ELEMENT_CLASS (klass); vpx_class = GST_VPX_DEC_CLASS (klass); gst_element_class_add_static_pad_template (element_class, &gst_vp9_dec_src_template); gst_element_class_add_static_pad_template (element_class, &gst_vp9_dec_sink_template); gst_element_class_set_static_metadata (element_class, "On2 VP9 Decoder", "Codec/Decoder/Video", "Decode VP9 video streams", "David Schleef , " "Sebastian Dröge "); vpx_class->video_codec_tag = VP9_DECODER_VIDEO_TAG; vpx_class->codec_algo = &vpx_codec_vp9_dx_algo; vpx_class->set_stream_info = GST_DEBUG_FUNCPTR (gst_vp9_dec_set_stream_info); vpx_class->get_frame_format = GST_DEBUG_FUNCPTR (gst_vp9_dec_get_valid_format); vpx_class->handle_resolution_change = GST_DEBUG_FUNCPTR (gst_vp9_dec_handle_resolution_change); GST_DEBUG_CATEGORY_INIT (gst_vp9dec_debug, "vp9dec", 0, "VP9 Decoder"); } static void gst_vp9_dec_init (GstVP9Dec * gst_vp9_dec) { GST_DEBUG_OBJECT (gst_vp9_dec, "gst_vp9_dec_init"); } static void gst_vp9_dec_set_stream_info (GstVPXDec * dec, vpx_codec_stream_info_t * stream_info) { /* FIXME: peek_stream_info() does not return valid values, take input caps */ stream_info->w = dec->input_state->info.width; stream_info->h = dec->input_state->info.height; return; } static gboolean gst_vp9_dec_get_valid_format (GstVPXDec * dec, vpx_image_t * img, GstVideoFormat * fmt) { switch (img->fmt) { case VPX_IMG_FMT_I420: *fmt = GST_VIDEO_FORMAT_I420; return TRUE; case VPX_IMG_FMT_YV12: *fmt = GST_VIDEO_FORMAT_YV12; return TRUE; case VPX_IMG_FMT_I422: *fmt = GST_VIDEO_FORMAT_Y42B; return TRUE; case VPX_IMG_FMT_I444: if (img->cs == VPX_CS_SRGB) *fmt = GST_VIDEO_FORMAT_GBR; else *fmt = GST_VIDEO_FORMAT_Y444; return TRUE; #ifdef VPX_IMG_FMT_I440 case VPX_IMG_FMT_I440: /* Planar, half height, full width U/V */ GST_FIXME_OBJECT (dec, "Please add a 4:4:0 planar frame format"); GST_ELEMENT_WARNING (dec, STREAM, NOT_IMPLEMENTED, (NULL), ("Unsupported frame format - 4:4:0 planar")); return FALSE; #endif case VPX_IMG_FMT_I42016: /* VPX_IMG_FMT_I420 | VPX_IMG_FMT_HIGHBITDEPTH */ if (img->bit_depth == 10) { *fmt = GST_VIDEO_FORMAT_I420_10LE; return TRUE; } GST_FIXME_OBJECT (dec, "Please add 16-bit I420 format"); GST_ELEMENT_WARNING (dec, STREAM, NOT_IMPLEMENTED, (NULL), ("Unsupported frame format - 16-bit 4:2:0 planar")); return FALSE; #ifdef VPX_IMG_FMT_I42216 case VPX_IMG_FMT_I42216: /* VPX_IMG_FMT_I422 | VPX_IMG_FMT_HIGHBITDEPTH */ GST_FIXME_OBJECT (dec, "Please add 16-bit Y42B format"); GST_ELEMENT_WARNING (dec, STREAM, NOT_IMPLEMENTED, (NULL), ("Unsupported frame format - 16-bit 4:2:2 planar")); return FALSE; #endif #ifdef VPX_IMG_FMT_I44416 case VPX_IMG_FMT_I44416: /* VPX_IMG_FMT_I444 | VPX_IMG_FMT_HIGHBITDEPTH */ GST_FIXME_OBJECT (dec, "Please add 16-bit Y444 format"); GST_ELEMENT_WARNING (dec, STREAM, NOT_IMPLEMENTED, (NULL), ("Unsupported frame format - 16-bit 4:4:4 planar")); return FALSE; #endif #ifdef VPX_IMG_FMT_I44016 case VPX_IMG_FMT_I44016: /* VPX_IMG_FMT_I440 | VPX_IMG_FMT_HIGHBITDEPTH */ GST_FIXME_OBJECT (dec, "Please add 16-bit 4:4:0 planar frame format"); GST_ELEMENT_WARNING (dec, STREAM, NOT_IMPLEMENTED, (NULL), ("Unsupported frame format - 16-bit 4:4:0 planar")); return FALSE; #endif default: return FALSE; } } static void gst_vp9_dec_handle_resolution_change (GstVPXDec * dec, vpx_image_t * img, GstVideoFormat fmt) { GstVPXDecClass *vpxclass = GST_VPX_DEC_GET_CLASS (dec); if (!dec->output_state || dec->output_state->info.finfo->format != fmt || dec->output_state->info.width != img->d_w || dec->output_state->info.height != img->d_h) { gboolean send_tags = !dec->output_state; if (dec->output_state) gst_video_codec_state_unref (dec->output_state); dec->output_state = gst_video_decoder_set_output_state (GST_VIDEO_DECODER (dec), fmt, img->d_w, img->d_h, dec->input_state); gst_video_decoder_negotiate (GST_VIDEO_DECODER (dec)); if (send_tags) vpxclass->send_tags (dec); } } #endif /* HAVE_VP9_DECODER */