-/*
- Copyright (C) 2012 Carl Hetherington <cth@carlh.net>
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program 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 General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-
-*/
-
-extern "C" {
-#include <libavfilter/avfiltergraph.h>
-}
-#include "exceptions.h"
-
-#include "i18n.h"
-
-#if LIBAVFILTER_VERSION_MAJOR == 2 && LIBAVFILTER_VERSION_MINOR == 15
-
-typedef struct {
- enum PixelFormat pix_fmt;
-} AVSinkContext;
-
-static int
-avsink_init (AVFilterContext* ctx, const char* args, void* opaque)
-{
- AVSinkContext* priv = (AVSinkContext *) ctx->priv;
- if (!opaque) {
- return AVERROR (EINVAL);
- }
-
- *priv = *(AVSinkContext *) opaque;
- return 0;
-}
-
-static void
-null_end_frame (AVFilterLink *)
-{
-
-}
-
-static int
-avsink_query_formats (AVFilterContext* ctx)
-{
- AVSinkContext* priv = (AVSinkContext *) ctx->priv;
- enum PixelFormat pix_fmts[] = {
- priv->pix_fmt,
- PIX_FMT_NONE
- };
-
- avfilter_set_common_formats (ctx, avfilter_make_format_list ((int *) pix_fmts));
- return 0;
-}
-
-#endif
-
-AVFilter*
-get_sink ()
-{
-#if LIBAVFILTER_VERSION_MAJOR == 2 && LIBAVFILTER_VERSION_MINOR == 15
- /* XXX does this leak stuff? */
- AVFilter* buffer_sink = new AVFilter;
- buffer_sink->name = av_strdup (N_("avsink"));
- buffer_sink->priv_size = sizeof (AVSinkContext);
- buffer_sink->init = avsink_init;
- buffer_sink->query_formats = avsink_query_formats;
- buffer_sink->inputs = new AVFilterPad[2];
- AVFilterPad* i0 = const_cast<AVFilterPad*> (&buffer_sink->inputs[0]);
- i0->name = N_("default");
- i0->type = AVMEDIA_TYPE_VIDEO;
- i0->min_perms = AV_PERM_READ;
- i0->rej_perms = 0;
- i0->start_frame = 0;
- i0->get_video_buffer = 0;
- i0->get_audio_buffer = 0;
- i0->end_frame = null_end_frame;
- i0->draw_slice = 0;
- i0->filter_samples = 0;
- i0->poll_frame = 0;
- i0->request_frame = 0;
- i0->config_props = 0;
- const_cast<AVFilterPad*> (&buffer_sink->inputs[1])->name = 0;
- buffer_sink->outputs = new AVFilterPad[1];
- const_cast<AVFilterPad*> (&buffer_sink->outputs[0])->name = 0;
- return buffer_sink;
-#else
- AVFilter* buffer_sink = avfilter_get_by_name(N_("buffersink"));
- if (buffer_sink == 0) {
- throw DecodeError (N_("Could not create buffer sink filter"));
- }
-
- return buffer_sink;
-#endif
-}
-
-#if LIBAVFILTER_VERSION_MAJOR == 2 && LIBAVFILTER_VERSION_MINOR == 15
-AVFilterInOut *
-avfilter_inout_alloc ()
-{
- return (AVFilterInOut *) av_malloc (sizeof (AVFilterInOut));
-}
-#endif
-
-#ifndef HAVE_AV_FRAME_GET_BEST_EFFORT_TIMESTAMP
-int64_t av_frame_get_best_effort_timestamp (AVFrame const * f)
-{
- return f->best_effort_timestamp;
-}
-
-#endif