mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-23 16:50:47 +00:00
219 lines
7 KiB
C
219 lines
7 KiB
C
/* VP9
|
|
* Copyright (C) 2006 David Schleef <ds@schleef.org>
|
|
* Copyright (C) 2008,2009,2010 Entropy Wave Inc
|
|
* Copyright (C) 2010-2013 Sebastian Dröge <slomo@circular-chaos.org>
|
|
*
|
|
* 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
|
|
* @see_also: vp9enc, matroskademux
|
|
*
|
|
* This element decodes VP9 streams into raw video.
|
|
* <ulink url="http://www.webmproject.org">VP9</ulink> is a royalty-free
|
|
* video codec maintained by <ulink url="http://www.google.com/">Google
|
|
* </ulink>. It's the successor of On2 VP3, which was the base of the
|
|
* Theora video codec.
|
|
*
|
|
* <refsect2>
|
|
* <title>Example pipeline</title>
|
|
* |[
|
|
* 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.
|
|
* </refsect2>
|
|
*/
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include "config.h"
|
|
#endif
|
|
|
|
#ifdef HAVE_VP9_DECODER
|
|
|
|
#include <string.h>
|
|
|
|
#include "gstvp8utils.h"
|
|
#include "gstvp9dec.h"
|
|
|
|
#include <gst/video/gstvideometa.h>
|
|
#include <gst/video/gstvideopool.h>
|
|
|
|
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 }"))
|
|
);
|
|
|
|
#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 <ds@entropywave.com>, "
|
|
"Sebastian Dröge <sebastian.droege@collabora.co.uk>");
|
|
|
|
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:
|
|
*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
|
|
#ifdef VPX_IMG_FMT_I42016
|
|
case VPX_IMG_FMT_I42016:
|
|
/* VPX_IMG_FMT_I420 | VPX_IMG_FMT_HIGHBITDEPTH */
|
|
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;
|
|
#endif
|
|
#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 */
|