gstreamer/gst/vaapi/gstvaapipluginutil.h

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/*
* gstvaapipluginutil.h - VA-API plugins private helper
*
2014-01-22 17:54:14 +00:00
* Copyright (C) 2011-2014 Intel Corporation
* Author: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
* Copyright (C) 2011 Collabora
* Author: Nicolas Dufresne <nicolas.dufresne@collabora.co.uk>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation; either version 2.1
* 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301 USA
*/
#ifndef GST_VAAPI_PLUGIN_UTIL_H
#define GST_VAAPI_PLUGIN_UTIL_H
#include <gst/vaapi/gstvaapidisplay.h>
#include <gst/vaapi/gstvaapisurface.h>
#include "gstvaapivideomemory.h"
G_GNUC_INTERNAL
gboolean
gst_vaapi_ensure_display (gpointer element, GstVaapiDisplayType type);
G_GNUC_INTERNAL
gboolean
gst_vaapi_reply_to_query (GstQuery * query, GstVaapiDisplay * display);
G_GNUC_INTERNAL
gboolean
gst_vaapi_append_surface_caps (GstCaps * out_caps, GstCaps * in_caps);
G_GNUC_INTERNAL
gboolean
gst_vaapi_apply_composition (GstVaapiSurface * surface, GstBuffer * buffer);
#ifndef G_PRIMITIVE_SWAP
#define G_PRIMITIVE_SWAP(type, a, b) do { \
const type t = a; a = b; b = t; \
} while (0)
#endif
/* Helpers for GValue construction for video formats */
G_GNUC_INTERNAL
gboolean
gst_vaapi_value_set_format (GValue * value, GstVideoFormat format);
G_GNUC_INTERNAL
gboolean
gst_vaapi_value_set_format_list (GValue * value, GArray * formats);
/* Helpers to build video caps */
typedef enum
{
vaapidecode: delayed src caps negotiation Currently the src caps are set immediately after the sink caps are set, but in that moment the pipeline might not fully constructed and the video sink has not negotiated its supported caps and features. As a consequence, in many cases of playback, the least optimized caps feature is forced. This is partially the responsible of bug #744039. Also, vaapidecode doesn't attend the reconfigure events from downstream, which is a problem too, since the video sink can be changed with different caps features. This patch delays the src caps, setting them until the first frame arrives to the decoder, assuming until that very moment the whole pipeline is already negotiated. Particularly, it checks if the src pad needs to be reconfigured, as a consequence of a reconfiguration event from downstream. A key part of this patch is the new GstVaapiCapsFeature GST_VAAPI_CAPS_FEATURE_NOT_NEGOTIATED, which is returned when the src pad doesn't have a peer yet. Also, for a better report of the caps allowed through the src pad and its peer, this patch uses gst_pad_get_allowed_caps() instead of gst_pad_peer_query_caps() when looking for the preferred feature. v3: move the input_state unref to close(), since videodecoder resets at some events such as navigation. v4: a) the state_changed() callback replaces the input_state if the media changed, so this case is also handled. b) since the parameter ref_state in gst_vaapidecode_update_src_caps() is always the input_state, the parameter were removed. c) there were a lot of repeated code handling the input_state, so I refactored it with the function gst_vaapi_decode_input_state_replace(). https://bugzilla.gnome.org/show_bug.cgi?id=744618 Signed-off-by: Víctor Manuel Jáquez Leal <victorx.jaquez@intel.com> Signed-off-by: Sreerenj Balachandran <sreerenj.balachandran@intel.com>
2015-02-26 10:24:55 +00:00
GST_VAAPI_CAPS_FEATURE_NOT_NEGOTIATED,
GST_VAAPI_CAPS_FEATURE_SYSTEM_MEMORY,
GST_VAAPI_CAPS_FEATURE_GL_TEXTURE_UPLOAD_META,
GST_VAAPI_CAPS_FEATURE_VAAPI_SURFACE,
} GstVaapiCapsFeature;
G_GNUC_INTERNAL
GstCaps *
gst_vaapi_video_format_new_template_caps (GstVideoFormat format);
G_GNUC_INTERNAL
GstCaps *
gst_vaapi_video_format_new_template_caps_from_list (GArray * formats);
G_GNUC_INTERNAL
GstCaps *
gst_vaapi_video_format_new_template_caps_with_features (GstVideoFormat format,
const gchar * features_string);
G_GNUC_INTERNAL
GstVaapiCapsFeature
gst_vaapi_find_preferred_caps_feature (GstPad * pad, GstVideoFormat format,
GstVideoFormat * out_format_ptr);
G_GNUC_INTERNAL
const gchar *
gst_vaapi_caps_feature_to_string (GstVaapiCapsFeature feature);
/* Helpers to handle interlaced contents */
# define GST_CAPS_INTERLACED_MODES \
"interlace-mode = (string){ progressive, interleaved, mixed }"
# define GST_CAPS_INTERLACED_FALSE \
"interlace-mode = (string)progressive"
G_GNUC_INTERNAL
gboolean
gst_caps_set_interlaced (GstCaps * caps, GstVideoInfo * vip);
G_GNUC_INTERNAL
gboolean
gst_caps_has_vaapi_surface (GstCaps * caps);
G_GNUC_INTERNAL
void
gst_video_info_change_format (GstVideoInfo * vip, GstVideoFormat format,
guint width, guint height);
#endif /* GST_VAAPI_PLUGIN_UTIL_H */