2013-03-10 23:16:34 +00:00
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/*
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* This file is part of mpv.
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*
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* Filter graph creation code taken from Libav avplay.c (LGPL 2.1 or later)
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*
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* mpv is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* mpv 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with mpv. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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2014-10-09 16:18:05 +00:00
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#include <math.h>
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2013-03-10 23:16:34 +00:00
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#include <inttypes.h>
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2013-12-03 21:19:27 +00:00
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#include <stdarg.h>
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2013-03-10 23:16:34 +00:00
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#include <assert.h>
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#include <libavutil/avstring.h>
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#include <libavutil/mem.h>
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#include <libavutil/mathematics.h>
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#include <libavutil/rational.h>
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#include <libavutil/pixdesc.h>
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#include <libavutil/time.h>
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2014-04-28 17:50:32 +00:00
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#include <libavutil/error.h>
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2013-03-10 23:16:34 +00:00
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#include <libswscale/swscale.h>
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#include <libavfilter/avfilter.h>
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#include <libavfilter/avfiltergraph.h>
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#include <libavfilter/buffersink.h>
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#include <libavfilter/buffersrc.h>
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2015-02-11 16:32:41 +00:00
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#include "config.h"
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2014-08-02 01:12:09 +00:00
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#include "common/av_common.h"
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2013-12-17 01:39:45 +00:00
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#include "common/msg.h"
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2013-12-17 01:02:25 +00:00
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#include "options/m_option.h"
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2014-04-13 14:04:23 +00:00
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#include "common/tags.h"
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2013-03-10 23:16:34 +00:00
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#include "video/img_format.h"
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#include "video/mp_image.h"
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#include "video/sws_utils.h"
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#include "video/fmt-conversion.h"
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#include "vf.h"
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2013-12-03 21:19:27 +00:00
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#include "vf_lavfi.h"
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2013-03-10 23:16:34 +00:00
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2013-04-26 10:28:11 +00:00
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// FFmpeg and Libav have slightly different APIs, just enough to cause us
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// unnecessary pain. <Expletive deleted.>
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2014-03-16 09:04:46 +00:00
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#if LIBAVFILTER_VERSION_MICRO < 100
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2013-04-26 10:28:11 +00:00
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#define graph_parse(graph, filters, inputs, outputs, log_ctx) \
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avfilter_graph_parse(graph, filters, inputs, outputs, log_ctx)
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#else
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#define graph_parse(graph, filters, inputs, outputs, log_ctx) \
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2014-04-11 10:21:14 +00:00
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avfilter_graph_parse_ptr(graph, filters, &(inputs), &(outputs), log_ctx)
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2013-04-26 10:28:11 +00:00
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#endif
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2013-03-10 23:16:34 +00:00
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struct vf_priv_s {
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AVFilterGraph *graph;
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AVFilterContext *in;
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AVFilterContext *out;
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2014-05-01 16:42:53 +00:00
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bool eof;
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2013-03-10 23:16:34 +00:00
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AVRational timebase_in;
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AVRational timebase_out;
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AVRational par_in;
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2014-04-13 14:04:23 +00:00
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struct mp_tags* metadata;
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2013-12-03 21:19:27 +00:00
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// for the lw wrapper
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void *old_priv;
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2014-09-27 15:14:23 +00:00
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int (*lw_reconfig_cb)(struct vf_instance *vf,
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struct mp_image_params *in,
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struct mp_image_params *out);
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2013-12-03 21:19:27 +00:00
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2013-03-10 23:16:34 +00:00
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// options
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char *cfg_graph;
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int64_t cfg_sws_flags;
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2014-08-02 01:12:09 +00:00
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char **cfg_avopts;
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2013-03-10 23:16:34 +00:00
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};
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static const struct vf_priv_s vf_priv_dflt = {
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.cfg_sws_flags = SWS_BICUBIC,
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};
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static void destroy_graph(struct vf_instance *vf)
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{
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struct vf_priv_s *p = vf->priv;
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avfilter_graph_free(&p->graph);
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2013-04-25 16:35:32 +00:00
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p->in = p->out = NULL;
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2014-05-01 16:42:53 +00:00
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if (p->metadata) {
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talloc_free(p->metadata);
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p->metadata = NULL;
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}
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p->eof = false;
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2013-03-10 23:16:34 +00:00
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}
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static AVRational par_from_sar_dar(int width, int height,
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int d_width, int d_height)
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{
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return av_div_q((AVRational){d_width, d_height},
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(AVRational){width, height});
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}
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static void dar_from_sar_par(int width, int height, AVRational par,
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int *out_dw, int *out_dh)
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{
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*out_dw = width;
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*out_dh = height;
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if (par.num != 0 && par.den != 0) {
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double d = av_q2d(par);
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if (d > 1.0) {
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2014-10-09 16:18:05 +00:00
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*out_dw = floor(*out_dw * d + 0.5);
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2013-03-10 23:16:34 +00:00
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} else {
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2014-10-09 16:18:05 +00:00
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*out_dh = floor(*out_dh / d + 0.5);
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2013-03-10 23:16:34 +00:00
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}
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}
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}
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2013-04-25 16:35:32 +00:00
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static bool recreate_graph(struct vf_instance *vf, int width, int height,
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int d_width, int d_height, unsigned int fmt)
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2013-03-10 23:16:34 +00:00
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{
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void *tmp = talloc_new(NULL);
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struct vf_priv_s *p = vf->priv;
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AVFilterContext *in = NULL, *out = NULL, *f_format = NULL;
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if (bstr0(p->cfg_graph).len == 0) {
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2013-12-21 16:43:25 +00:00
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MP_FATAL(vf, "lavfi: no filter graph set\n");
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2013-04-25 16:35:32 +00:00
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return false;
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2013-03-10 23:16:34 +00:00
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}
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destroy_graph(vf);
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2013-12-21 16:43:25 +00:00
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MP_VERBOSE(vf, "lavfi: create graph: '%s'\n", p->cfg_graph);
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2013-03-10 23:16:34 +00:00
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AVFilterGraph *graph = avfilter_graph_alloc();
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if (!graph)
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goto error;
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2014-08-02 01:12:09 +00:00
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if (mp_set_avopts(vf->log, graph, p->cfg_avopts) < 0)
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2013-05-25 13:53:55 +00:00
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goto error;
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2013-03-10 23:16:34 +00:00
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AVFilterInOut *outputs = avfilter_inout_alloc();
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AVFilterInOut *inputs = avfilter_inout_alloc();
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if (!outputs || !inputs)
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goto error;
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// Build list of acceptable output pixel formats. libavfilter will insert
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// conversion filters if needed.
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char *fmtstr = talloc_strdup(tmp, "");
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for (int n = IMGFMT_START; n < IMGFMT_END; n++) {
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if (vf_next_query_format(vf, n)) {
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const char *name = av_get_pix_fmt_name(imgfmt2pixfmt(n));
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if (name) {
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2014-03-16 09:04:46 +00:00
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const char *s = fmtstr[0] ? "|" : "";
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2013-03-10 23:16:34 +00:00
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fmtstr = talloc_asprintf_append_buffer(fmtstr, "%s%s", s, name);
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}
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}
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}
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char *sws_flags = talloc_asprintf(tmp, "flags=%"PRId64, p->cfg_sws_flags);
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graph->scale_sws_opts = av_strdup(sws_flags);
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AVRational par = par_from_sar_dar(width, height, d_width, d_height);
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AVRational timebase = AV_TIME_BASE_Q;
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char *src_args = talloc_asprintf(tmp, "%d:%d:%d:%d:%d:%d:%d",
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width, height, imgfmt2pixfmt(fmt),
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timebase.num, timebase.den,
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par.num, par.den);
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if (avfilter_graph_create_filter(&in, avfilter_get_by_name("buffer"),
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"src", src_args, NULL, graph) < 0)
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goto error;
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if (avfilter_graph_create_filter(&out, avfilter_get_by_name("buffersink"),
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"out", NULL, NULL, graph) < 0)
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goto error;
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if (avfilter_graph_create_filter(&f_format, avfilter_get_by_name("format"),
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"format", fmtstr, NULL, graph) < 0)
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goto error;
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if (avfilter_link(f_format, 0, out, 0) < 0)
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goto error;
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outputs->name = av_strdup("in");
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outputs->filter_ctx = in;
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inputs->name = av_strdup("out");
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inputs->filter_ctx = f_format;
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if (graph_parse(graph, p->cfg_graph, inputs, outputs, NULL) < 0)
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goto error;
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if (avfilter_graph_config(graph, NULL) < 0)
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goto error;
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p->in = in;
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p->out = out;
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p->graph = graph;
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assert(out->nb_inputs == 1);
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assert(in->nb_outputs == 1);
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2013-04-25 16:35:32 +00:00
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talloc_free(tmp);
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return true;
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error:
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2013-12-21 16:43:25 +00:00
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MP_FATAL(vf, "Can't configure libavfilter graph.\n");
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2013-04-25 16:35:32 +00:00
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avfilter_graph_free(&graph);
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talloc_free(tmp);
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return false;
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}
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2014-05-01 16:42:53 +00:00
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static void reset(vf_instance_t *vf)
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{
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struct vf_priv_s *p = vf->priv;
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struct mp_image_params *f = &vf->fmt_in;
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if (p->graph && f->imgfmt)
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recreate_graph(vf, f->w, f->h, f->d_w, f->d_h, f->imgfmt);
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}
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2014-09-27 15:14:23 +00:00
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static int reconfig(struct vf_instance *vf, struct mp_image_params *in,
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struct mp_image_params *out)
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2013-04-25 16:35:32 +00:00
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{
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struct vf_priv_s *p = vf->priv;
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2014-09-27 15:14:23 +00:00
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*out = *in; // pass-through untouched flags
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if (vf->priv->lw_reconfig_cb) {
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if (vf->priv->lw_reconfig_cb(vf, in, out) < 0)
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return -1;
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}
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if (!recreate_graph(vf, in->w, in->h, in->d_w, in->d_h, in->imgfmt))
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return -1;
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2013-04-25 16:35:32 +00:00
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AVFilterLink *l_out = p->out->inputs[0];
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AVFilterLink *l_in = p->in->outputs[0];
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2013-03-10 23:16:34 +00:00
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p->timebase_in = l_in->time_base;
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p->timebase_out = l_out->time_base;
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p->par_in = l_in->sample_aspect_ratio;
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int dw, dh;
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dar_from_sar_par(l_out->w, l_out->h, l_out->sample_aspect_ratio, &dw, &dh);
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2014-09-27 15:14:23 +00:00
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out->w = l_out->w;
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out->h = l_out->h;
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out->d_w = dw;
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out->d_h = dh;
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out->imgfmt = pixfmt2imgfmt(l_out->format);
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return 0;
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2013-03-10 23:16:34 +00:00
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}
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static int query_format(struct vf_instance *vf, unsigned int fmt)
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{
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// We accept all sws-convertable formats as inputs. Output formats are
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// handled in config(). The current public libavfilter API doesn't really
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// allow us to do anything more sophisticated.
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// This breaks with filters which accept input pixel formats not
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// supported by libswscale.
|
2015-01-21 21:08:24 +00:00
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return !!mp_sws_supported_format(fmt);
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2013-03-10 23:16:34 +00:00
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}
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static AVFrame *mp_to_av(struct vf_instance *vf, struct mp_image *img)
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{
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struct vf_priv_s *p = vf->priv;
|
video: don't drop last frame when deinterlacing with yadif
Or in other words, add support for properly draining remaining frames
from video filters. vf_yadif is buffering at least one frame, and the
buffered frame was not retrieved on EOF.
For most filters, ignore this for now, and just adjust them to the
changed semantics of filter_ext. But for vf_lavfi (used by vf_yadif),
real support is implemented. libavfilter handles this simply by passing
a NULL frame to av_buffersrc_add_frame(), so we just have to make
mp_to_av() handle NULL arguments.
In load_next_vo_frame(), we first try to output a frame buffered in the
VO, then the filter, and then (if EOF is reached and there's still no
new frame) the VO again, with draining enabled. I guess this was
implemented slightly incorrectly before, because the filter chain still
could have had remaining output frames.
2014-04-28 17:44:35 +00:00
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if (!img)
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return NULL;
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2013-03-10 23:16:34 +00:00
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uint64_t pts = img->pts == MP_NOPTS_VALUE ?
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AV_NOPTS_VALUE : img->pts * av_q2d(av_inv_q(p->timebase_in));
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AVFrame *frame = mp_image_to_av_frame_and_unref(img);
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video: introduce failure path for image allocations
Until now, failure to allocate image data resulted in a crash (i.e.
abort() was called). This was intentional, because it's pretty silly to
degrade playback, and in almost all situations, the OOM will probably
kill you anyway. (And then there's the standard Linux overcommit
behavior, which also will kill you at some point.)
But I changed my opinion, so here we go. This change does not affect
_all_ memory allocations, just image data. Now in most failure cases,
the output will just be skipped. For video filters, this coincidentally
means that failure is treated as EOF (because the playback core assumes
EOF if nothing comes out of the video filter chain). In other
situations, output might be in some way degraded, like skipping frames,
not scaling OSD, and such.
Functions whose return values changed semantics:
mp_image_alloc
mp_image_new_copy
mp_image_new_ref
mp_image_make_writeable
mp_image_setrefp
mp_image_to_av_frame_and_unref
mp_image_from_av_frame
mp_image_new_external_ref
mp_image_new_custom_ref
mp_image_pool_make_writeable
mp_image_pool_get
mp_image_pool_new_copy
mp_vdpau_mixed_frame_create
vf_alloc_out_image
vf_make_out_image_writeable
glGetWindowScreenshot
2014-06-17 20:43:43 +00:00
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|
if (!frame)
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return NULL; // OOM is (coincidentally) handled as EOF
|
2013-03-10 23:16:34 +00:00
|
|
|
frame->pts = pts;
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frame->sample_aspect_ratio = p->par_in;
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return frame;
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}
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|
|
static struct mp_image *av_to_mp(struct vf_instance *vf, AVFrame *av_frame)
|
|
|
|
{
|
|
|
|
struct vf_priv_s *p = vf->priv;
|
|
|
|
struct mp_image *img = mp_image_from_av_frame(av_frame);
|
video: introduce failure path for image allocations
Until now, failure to allocate image data resulted in a crash (i.e.
abort() was called). This was intentional, because it's pretty silly to
degrade playback, and in almost all situations, the OOM will probably
kill you anyway. (And then there's the standard Linux overcommit
behavior, which also will kill you at some point.)
But I changed my opinion, so here we go. This change does not affect
_all_ memory allocations, just image data. Now in most failure cases,
the output will just be skipped. For video filters, this coincidentally
means that failure is treated as EOF (because the playback core assumes
EOF if nothing comes out of the video filter chain). In other
situations, output might be in some way degraded, like skipping frames,
not scaling OSD, and such.
Functions whose return values changed semantics:
mp_image_alloc
mp_image_new_copy
mp_image_new_ref
mp_image_make_writeable
mp_image_setrefp
mp_image_to_av_frame_and_unref
mp_image_from_av_frame
mp_image_new_external_ref
mp_image_new_custom_ref
mp_image_pool_make_writeable
mp_image_pool_get
mp_image_pool_new_copy
mp_vdpau_mixed_frame_create
vf_alloc_out_image
vf_make_out_image_writeable
glGetWindowScreenshot
2014-06-17 20:43:43 +00:00
|
|
|
if (!img)
|
|
|
|
return NULL; // OOM
|
2013-03-10 23:16:34 +00:00
|
|
|
img->pts = av_frame->pts == AV_NOPTS_VALUE ?
|
|
|
|
MP_NOPTS_VALUE : av_frame->pts * av_q2d(p->timebase_out);
|
|
|
|
av_frame_free(&av_frame);
|
|
|
|
return img;
|
|
|
|
}
|
|
|
|
|
2014-04-13 14:04:23 +00:00
|
|
|
static void get_metadata_from_av_frame(struct vf_instance *vf, AVFrame *frame)
|
|
|
|
{
|
|
|
|
#if HAVE_AVFRAME_METADATA
|
|
|
|
struct vf_priv_s *p = vf->priv;
|
|
|
|
if (!p->metadata)
|
|
|
|
p->metadata = talloc_zero(p, struct mp_tags);
|
|
|
|
|
|
|
|
mp_tags_copy_from_av_dictionary(p->metadata, av_frame_get_metadata(frame));
|
|
|
|
#endif
|
|
|
|
}
|
|
|
|
|
2013-03-10 23:16:34 +00:00
|
|
|
static int filter_ext(struct vf_instance *vf, struct mp_image *mpi)
|
|
|
|
{
|
|
|
|
struct vf_priv_s *p = vf->priv;
|
|
|
|
|
2014-05-01 16:42:53 +00:00
|
|
|
if (p->eof && mpi) {
|
|
|
|
// Once EOF is reached, libavfilter is "stuck" in the EOF state, and
|
|
|
|
// won't accept new input. Forcefully override it. This helps e.g.
|
|
|
|
// with cover art, where we always want to generate new output.
|
|
|
|
reset(vf);
|
|
|
|
}
|
|
|
|
|
2013-03-10 23:16:34 +00:00
|
|
|
if (!p->graph)
|
|
|
|
return -1;
|
|
|
|
|
|
|
|
AVFrame *frame = mp_to_av(vf, mpi);
|
2014-09-18 17:26:13 +00:00
|
|
|
int r = av_buffersrc_add_frame(p->in, frame) < 0 ? -1 : 0;
|
2013-03-10 23:16:34 +00:00
|
|
|
av_frame_free(&frame);
|
|
|
|
|
2014-09-18 17:26:13 +00:00
|
|
|
return r;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int filter_out(struct vf_instance *vf)
|
|
|
|
{
|
|
|
|
struct vf_priv_s *p = vf->priv;
|
2014-04-13 14:04:23 +00:00
|
|
|
|
2014-09-18 17:26:13 +00:00
|
|
|
AVFrame *frame = av_frame_alloc();
|
|
|
|
int err = av_buffersink_get_frame(p->out, frame);
|
|
|
|
if (err == AVERROR(EAGAIN) || err == AVERROR_EOF) {
|
|
|
|
// Not an error situation - no more output buffers in queue.
|
|
|
|
// AVERROR_EOF means we shouldn't even give the filter more
|
|
|
|
// input, but we don't handle that completely correctly.
|
|
|
|
av_frame_free(&frame);
|
|
|
|
p->eof |= err == AVERROR_EOF;
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
if (err < 0) {
|
|
|
|
av_frame_free(&frame);
|
|
|
|
MP_ERR(vf, "libavfilter error: %d\n", err);
|
|
|
|
return -1;
|
2013-03-10 23:16:34 +00:00
|
|
|
}
|
|
|
|
|
2014-09-18 17:26:13 +00:00
|
|
|
get_metadata_from_av_frame(vf, frame);
|
|
|
|
vf_add_output_frame(vf, av_to_mp(vf, frame));
|
2013-03-10 23:16:34 +00:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2013-12-03 21:19:27 +00:00
|
|
|
static int control(vf_instance_t *vf, int request, void *data)
|
|
|
|
{
|
2013-04-25 16:35:32 +00:00
|
|
|
switch (request) {
|
|
|
|
case VFCTRL_SEEK_RESET:
|
2013-12-03 21:19:27 +00:00
|
|
|
reset(vf);
|
2013-12-07 18:33:38 +00:00
|
|
|
return CONTROL_OK;
|
2014-04-29 15:00:52 +00:00
|
|
|
case VFCTRL_GET_METADATA:
|
|
|
|
if (vf->priv && vf->priv->metadata) {
|
|
|
|
*(struct mp_tags*) data = *vf->priv->metadata;
|
|
|
|
return CONTROL_OK;
|
|
|
|
} else {
|
|
|
|
return CONTROL_NA;
|
|
|
|
}
|
2013-04-25 16:35:32 +00:00
|
|
|
}
|
2013-12-07 18:33:38 +00:00
|
|
|
return CONTROL_UNKNOWN;
|
2013-04-25 16:35:32 +00:00
|
|
|
}
|
|
|
|
|
2013-03-10 23:16:34 +00:00
|
|
|
static void uninit(struct vf_instance *vf)
|
|
|
|
{
|
|
|
|
if (!vf->priv)
|
|
|
|
return;
|
|
|
|
destroy_graph(vf);
|
|
|
|
}
|
|
|
|
|
2013-12-03 23:01:38 +00:00
|
|
|
static int vf_open(vf_instance_t *vf)
|
2013-03-10 23:16:34 +00:00
|
|
|
{
|
2014-09-27 15:14:23 +00:00
|
|
|
vf->reconfig = reconfig;
|
|
|
|
vf->config = NULL;
|
2013-03-10 23:16:34 +00:00
|
|
|
vf->filter_ext = filter_ext;
|
2014-09-18 17:26:13 +00:00
|
|
|
vf->filter_out = filter_out;
|
2013-12-03 21:19:27 +00:00
|
|
|
vf->filter = NULL;
|
2013-03-10 23:16:34 +00:00
|
|
|
vf->query_format = query_format;
|
2013-04-25 16:35:32 +00:00
|
|
|
vf->control = control;
|
2013-03-10 23:16:34 +00:00
|
|
|
vf->uninit = uninit;
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
|
2013-11-23 20:35:52 +00:00
|
|
|
static bool is_single_video_only(const AVFilterPad *pads)
|
|
|
|
{
|
2013-12-18 16:13:13 +00:00
|
|
|
int count = avfilter_pad_count(pads);
|
|
|
|
if (count != 1)
|
2013-11-23 20:35:52 +00:00
|
|
|
return false;
|
2013-12-18 16:13:13 +00:00
|
|
|
return avfilter_pad_get_type(pads, 0) == AVMEDIA_TYPE_VIDEO;
|
2013-11-23 20:35:52 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
// Does it have exactly one video input and one video output?
|
|
|
|
static bool is_usable(const AVFilter *filter)
|
|
|
|
{
|
|
|
|
return is_single_video_only(filter->inputs) &&
|
|
|
|
is_single_video_only(filter->outputs);
|
|
|
|
}
|
|
|
|
|
2013-12-21 19:04:49 +00:00
|
|
|
static void print_help(struct mp_log *log)
|
2013-11-23 20:35:52 +00:00
|
|
|
{
|
2013-12-21 19:04:49 +00:00
|
|
|
mp_info(log, "List of libavfilter filters:\n");
|
2013-11-23 20:35:52 +00:00
|
|
|
for (const AVFilter *filter = avfilter_next(NULL); filter;
|
|
|
|
filter = avfilter_next(filter))
|
|
|
|
{
|
2013-12-21 19:04:49 +00:00
|
|
|
if (is_usable(filter))
|
|
|
|
mp_info(log, " %-16s %s\n", filter->name, filter->description);
|
2013-11-23 20:35:52 +00:00
|
|
|
}
|
2013-12-21 19:04:49 +00:00
|
|
|
mp_info(log, "\n"
|
2013-11-23 20:35:52 +00:00
|
|
|
"This lists video->video filters only. Refer to\n"
|
|
|
|
"\n"
|
|
|
|
" https://ffmpeg.org/ffmpeg-filters.html\n"
|
|
|
|
"\n"
|
|
|
|
"to see how to use each filter and what arguments each filter takes.\n"
|
|
|
|
"Also, be sure to quote the FFmpeg filter string properly, e.g.:\n"
|
|
|
|
"\n"
|
|
|
|
" \"--vf=lavfi=[gradfun=20:30]\"\n"
|
|
|
|
"\n"
|
|
|
|
"Otherwise, mpv and libavfilter syntax will conflict.\n"
|
|
|
|
"\n");
|
|
|
|
}
|
|
|
|
|
options: use m_config for options instead of m_struct
For some reason, both m_config and m_struct are somewhat similar, except
that m_config is much more powerful. m_config is used for VOs and some
other things, so to unify them. We plan to kick out m_struct and use
m_config for everything. (Unfortunately, m_config is also a bit more
bloated, so this commit isn't all that great, but it will allow to
reduce the option parser mess somewhat.)
This commit also switches all video filters to use the option macros.
One reason is that m_struct and m_config, even though they both use
m_option, store the offsets of the option fields differently (sigh...),
meaning the options defined for either are incompatible. It's easier to
switch everything in one go.
This commit will allow using the -vf option parser for other things,
like VOs and AOs.
2013-07-21 17:33:08 +00:00
|
|
|
#define OPT_BASE_STRUCT struct vf_priv_s
|
2013-03-10 23:16:34 +00:00
|
|
|
static const m_option_t vf_opts_fields[] = {
|
options: use m_config for options instead of m_struct
For some reason, both m_config and m_struct are somewhat similar, except
that m_config is much more powerful. m_config is used for VOs and some
other things, so to unify them. We plan to kick out m_struct and use
m_config for everything. (Unfortunately, m_config is also a bit more
bloated, so this commit isn't all that great, but it will allow to
reduce the option parser mess somewhat.)
This commit also switches all video filters to use the option macros.
One reason is that m_struct and m_config, even though they both use
m_option, store the offsets of the option fields differently (sigh...),
meaning the options defined for either are incompatible. It's easier to
switch everything in one go.
This commit will allow using the -vf option parser for other things,
like VOs and AOs.
2013-07-21 17:33:08 +00:00
|
|
|
OPT_STRING("graph", cfg_graph, M_OPT_MIN, .min = 1),
|
2013-12-03 21:19:27 +00:00
|
|
|
OPT_INT64("sws-flags", cfg_sws_flags, 0),
|
2014-08-02 01:12:09 +00:00
|
|
|
OPT_KEYVALUELIST("o", cfg_avopts, 0),
|
2013-03-10 23:16:34 +00:00
|
|
|
{0}
|
|
|
|
};
|
|
|
|
|
|
|
|
const vf_info_t vf_info_lavfi = {
|
2013-10-23 17:06:42 +00:00
|
|
|
.description = "libavfilter bridge",
|
|
|
|
.name = "lavfi",
|
|
|
|
.open = vf_open,
|
options: use m_config for options instead of m_struct
For some reason, both m_config and m_struct are somewhat similar, except
that m_config is much more powerful. m_config is used for VOs and some
other things, so to unify them. We plan to kick out m_struct and use
m_config for everything. (Unfortunately, m_config is also a bit more
bloated, so this commit isn't all that great, but it will allow to
reduce the option parser mess somewhat.)
This commit also switches all video filters to use the option macros.
One reason is that m_struct and m_config, even though they both use
m_option, store the offsets of the option fields differently (sigh...),
meaning the options defined for either are incompatible. It's easier to
switch everything in one go.
This commit will allow using the -vf option parser for other things,
like VOs and AOs.
2013-07-21 17:33:08 +00:00
|
|
|
.priv_size = sizeof(struct vf_priv_s),
|
|
|
|
.priv_defaults = &vf_priv_dflt,
|
|
|
|
.options = vf_opts_fields,
|
2013-11-23 20:35:52 +00:00
|
|
|
.print_help = print_help,
|
2013-03-10 23:16:34 +00:00
|
|
|
};
|
2013-12-03 21:19:27 +00:00
|
|
|
|
|
|
|
// The following code is for the old filters wrapper code.
|
|
|
|
|
|
|
|
struct vf_lw_opts {
|
|
|
|
int64_t sws_flags;
|
2014-08-02 01:12:09 +00:00
|
|
|
char **avopts;
|
2013-12-03 21:19:27 +00:00
|
|
|
};
|
|
|
|
|
|
|
|
#undef OPT_BASE_STRUCT
|
|
|
|
#define OPT_BASE_STRUCT struct vf_lw_opts
|
|
|
|
const struct m_sub_options vf_lw_conf = {
|
|
|
|
.opts = (const m_option_t[]) {
|
|
|
|
OPT_INT64("lavfi-sws-flags", sws_flags, 0),
|
2014-08-02 01:12:09 +00:00
|
|
|
OPT_KEYVALUELIST("lavfi-o", avopts, 0),
|
2013-12-03 21:19:27 +00:00
|
|
|
{0}
|
|
|
|
},
|
|
|
|
.defaults = &(const struct vf_lw_opts){
|
|
|
|
.sws_flags = SWS_BICUBIC,
|
|
|
|
},
|
|
|
|
.size = sizeof(struct vf_lw_opts),
|
|
|
|
};
|
|
|
|
|
|
|
|
static bool have_filter(const char *name)
|
|
|
|
{
|
|
|
|
for (const AVFilter *filter = avfilter_next(NULL); filter;
|
|
|
|
filter = avfilter_next(filter))
|
|
|
|
{
|
|
|
|
if (strcmp(filter->name, name) == 0)
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
|
|
|
// This is used by "old" filters for wrapping lavfi if possible.
|
|
|
|
// On success, this overwrites all vf callbacks and literally takes over the
|
|
|
|
// old filter and replaces it with vf_lavfi.
|
|
|
|
// On error (<0), nothing is changed.
|
|
|
|
int vf_lw_set_graph(struct vf_instance *vf, struct vf_lw_opts *lavfi_opts,
|
|
|
|
char *filter, char *opts, ...)
|
|
|
|
{
|
|
|
|
if (!lavfi_opts)
|
|
|
|
lavfi_opts = (struct vf_lw_opts *)vf_lw_conf.defaults;
|
2015-02-12 10:53:40 +00:00
|
|
|
if (filter && !have_filter(filter))
|
2013-12-03 21:19:27 +00:00
|
|
|
return -1;
|
2013-12-21 16:43:25 +00:00
|
|
|
MP_VERBOSE(vf, "Using libavfilter for '%s'\n", vf->info->name);
|
2013-12-03 21:19:27 +00:00
|
|
|
void *old_priv = vf->priv;
|
|
|
|
struct vf_priv_s *p = talloc(vf, struct vf_priv_s);
|
|
|
|
vf->priv = p;
|
|
|
|
*p = vf_priv_dflt;
|
|
|
|
p->cfg_sws_flags = lavfi_opts->sws_flags;
|
|
|
|
p->cfg_avopts = lavfi_opts->avopts;
|
|
|
|
va_list ap;
|
|
|
|
va_start(ap, opts);
|
|
|
|
char *s = talloc_vasprintf(vf, opts, ap);
|
2014-04-20 19:26:30 +00:00
|
|
|
p->cfg_graph = filter ? talloc_asprintf(vf, "%s=%s", filter, s)
|
|
|
|
: talloc_strdup(vf, s);
|
2013-12-03 21:19:27 +00:00
|
|
|
talloc_free(s);
|
|
|
|
va_end(ap);
|
|
|
|
p->old_priv = old_priv;
|
|
|
|
// Note: we should be sure vf_open really overwrites _all_ vf callbacks.
|
2013-12-03 23:01:38 +00:00
|
|
|
if (vf_open(vf) < 1)
|
2013-12-03 21:19:27 +00:00
|
|
|
abort();
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
|
|
|
|
void *vf_lw_old_priv(struct vf_instance *vf)
|
|
|
|
{
|
|
|
|
struct vf_priv_s *p = vf->priv;
|
|
|
|
return p->old_priv;
|
|
|
|
}
|
|
|
|
|
|
|
|
void vf_lw_update_graph(struct vf_instance *vf, char *filter, char *opts, ...)
|
|
|
|
{
|
|
|
|
struct vf_priv_s *p = vf->priv;
|
|
|
|
va_list ap;
|
|
|
|
va_start(ap, opts);
|
|
|
|
char *s = talloc_vasprintf(vf, opts, ap);
|
|
|
|
talloc_free(p->cfg_graph);
|
2014-09-27 15:14:23 +00:00
|
|
|
p->cfg_graph = filter ? talloc_asprintf(vf, "%s=%s", filter, s)
|
|
|
|
: talloc_strdup(vf, s);
|
2013-12-03 21:19:27 +00:00
|
|
|
talloc_free(s);
|
|
|
|
va_end(ap);
|
|
|
|
}
|
|
|
|
|
2014-09-27 15:14:23 +00:00
|
|
|
void vf_lw_set_reconfig_cb(struct vf_instance *vf,
|
|
|
|
int (*reconfig_)(struct vf_instance *vf,
|
|
|
|
struct mp_image_params *in,
|
|
|
|
struct mp_image_params *out))
|
2013-12-03 21:19:27 +00:00
|
|
|
{
|
2014-09-27 15:14:23 +00:00
|
|
|
vf->priv->lw_reconfig_cb = reconfig_;
|
2013-12-03 21:19:27 +00:00
|
|
|
}
|