GCC Code Coverage Report
Directory: ../../../ffmpeg/ Exec Total Coverage
File: src/fftools/ffmpeg_filter.c Lines: 463 636 72.8 %
Date: 2020-09-25 23:16:12 Branches: 284 476 59.7 %

Line Branch Exec Source
1
/*
2
 * ffmpeg filter configuration
3
 *
4
 * This file is part of FFmpeg.
5
 *
6
 * FFmpeg is free software; you can redistribute it and/or
7
 * modify it under the terms of the GNU Lesser General Public
8
 * License as published by the Free Software Foundation; either
9
 * version 2.1 of the License, or (at your option) any later version.
10
 *
11
 * FFmpeg is distributed in the hope that it will be useful,
12
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14
 * Lesser General Public License for more details.
15
 *
16
 * You should have received a copy of the GNU Lesser General Public
17
 * License along with FFmpeg; if not, write to the Free Software
18
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19
 */
20
21
#include <stdint.h>
22
23
#include "ffmpeg.h"
24
25
#include "libavfilter/avfilter.h"
26
#include "libavfilter/buffersink.h"
27
#include "libavfilter/buffersrc.h"
28
29
#include "libavresample/avresample.h"
30
31
#include "libavutil/avassert.h"
32
#include "libavutil/avstring.h"
33
#include "libavutil/bprint.h"
34
#include "libavutil/channel_layout.h"
35
#include "libavutil/display.h"
36
#include "libavutil/opt.h"
37
#include "libavutil/pixdesc.h"
38
#include "libavutil/pixfmt.h"
39
#include "libavutil/imgutils.h"
40
#include "libavutil/samplefmt.h"
41
42
64
static const enum AVPixelFormat *get_compliance_unofficial_pix_fmts(enum AVCodecID codec_id, const enum AVPixelFormat default_formats[])
43
{
44
    static const enum AVPixelFormat mjpeg_formats[] =
45
        { AV_PIX_FMT_YUVJ420P, AV_PIX_FMT_YUVJ422P, AV_PIX_FMT_YUVJ444P,
46
          AV_PIX_FMT_YUV420P,  AV_PIX_FMT_YUV422P,  AV_PIX_FMT_YUV444P,
47
          AV_PIX_FMT_NONE };
48
    static const enum AVPixelFormat ljpeg_formats[] =
49
        { AV_PIX_FMT_BGR24   , AV_PIX_FMT_BGRA    , AV_PIX_FMT_BGR0,
50
          AV_PIX_FMT_YUVJ420P, AV_PIX_FMT_YUVJ444P, AV_PIX_FMT_YUVJ422P,
51
          AV_PIX_FMT_YUV420P , AV_PIX_FMT_YUV444P , AV_PIX_FMT_YUV422P,
52
          AV_PIX_FMT_NONE};
53
54
64
    if (codec_id == AV_CODEC_ID_MJPEG) {
55
        return mjpeg_formats;
56
64
    } else if (codec_id == AV_CODEC_ID_LJPEG) {
57
4
        return ljpeg_formats;
58
    } else {
59
60
        return default_formats;
60
    }
61
}
62
63
3401
enum AVPixelFormat choose_pixel_fmt(AVStream *st, AVCodecContext *enc_ctx,
64
                                    const AVCodec *codec, enum AVPixelFormat target)
65
{
66

3401
    if (codec && codec->pix_fmts) {
67
273
        const enum AVPixelFormat *p = codec->pix_fmts;
68
273
        const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(target);
69
        //FIXME: This should check for AV_PIX_FMT_FLAG_ALPHA after PAL8 pixel format without alpha is implemented
70

273
        int has_alpha = desc ? desc->nb_components % 2 == 0 : 0;
71
273
        enum AVPixelFormat best= AV_PIX_FMT_NONE;
72
73
273
        if (enc_ctx->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL) {
74
45
            p = get_compliance_unofficial_pix_fmts(enc_ctx->codec_id, p);
75
        }
76
1371
        for (; *p != AV_PIX_FMT_NONE; p++) {
77
1362
            best= avcodec_find_best_pix_fmt_of_2(best, *p, target, has_alpha, NULL);
78
1362
            if (*p == target)
79
264
                break;
80
        }
81
273
        if (*p == AV_PIX_FMT_NONE) {
82
9
            if (target != AV_PIX_FMT_NONE)
83
9
                av_log(NULL, AV_LOG_WARNING,
84
                       "Incompatible pixel format '%s' for codec '%s', auto-selecting format '%s'\n",
85
                       av_get_pix_fmt_name(target),
86
                       codec->name,
87
                       av_get_pix_fmt_name(best));
88
9
            return best;
89
        }
90
    }
91
3392
    return target;
92
}
93
94
void choose_sample_fmt(AVStream *st, const AVCodec *codec)
95
{
96
    if (codec && codec->sample_fmts) {
97
        const enum AVSampleFormat *p = codec->sample_fmts;
98
        for (; *p != -1; p++) {
99
            if (*p == st->codecpar->format)
100
                break;
101
        }
102
        if (*p == -1) {
103
            const AVCodecDescriptor *desc = avcodec_descriptor_get(codec->id);
104
            if(desc && (desc->props & AV_CODEC_PROP_LOSSLESS) && av_get_sample_fmt_name(st->codecpar->format) > av_get_sample_fmt_name(codec->sample_fmts[0]))
105
                av_log(NULL, AV_LOG_ERROR, "Conversion will not be lossless.\n");
106
            if(av_get_sample_fmt_name(st->codecpar->format))
107
            av_log(NULL, AV_LOG_WARNING,
108
                   "Incompatible sample format '%s' for codec '%s', auto-selecting format '%s'\n",
109
                   av_get_sample_fmt_name(st->codecpar->format),
110
                   codec->name,
111
                   av_get_sample_fmt_name(codec->sample_fmts[0]));
112
            st->codecpar->format = codec->sample_fmts[0];
113
        }
114
    }
115
}
116
117
4709
static char *choose_pix_fmts(OutputFilter *ofilter)
118
{
119
4709
    OutputStream *ost = ofilter->ost;
120
4709
    AVDictionaryEntry *strict_dict = av_dict_get(ost->encoder_opts, "strict", NULL, 0);
121
4709
    if (strict_dict)
122
        // used by choose_pixel_fmt() and below
123
64
        av_opt_set(ost->enc_ctx, "strict", strict_dict->value, 0);
124
125
4709
     if (ost->keep_pix_fmt) {
126
        avfilter_graph_set_auto_convert(ofilter->graph->graph,
127
                                            AVFILTER_AUTO_CONVERT_NONE);
128
        if (ost->enc_ctx->pix_fmt == AV_PIX_FMT_NONE)
129
            return NULL;
130
        return av_strdup(av_get_pix_fmt_name(ost->enc_ctx->pix_fmt));
131
    }
132
4709
    if (ost->enc_ctx->pix_fmt != AV_PIX_FMT_NONE) {
133
3401
        return av_strdup(av_get_pix_fmt_name(choose_pixel_fmt(ost->st, ost->enc_ctx, ost->enc, ost->enc_ctx->pix_fmt)));
134

1308
    } else if (ost->enc && ost->enc->pix_fmts) {
135
        const enum AVPixelFormat *p;
136
290
        AVIOContext *s = NULL;
137
        uint8_t *ret;
138
        int len;
139
140
290
        if (avio_open_dyn_buf(&s) < 0)
141
            exit_program(1);
142
143
290
        p = ost->enc->pix_fmts;
144
290
        if (ost->enc_ctx->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL) {
145
19
            p = get_compliance_unofficial_pix_fmts(ost->enc_ctx->codec_id, p);
146
        }
147
148
1474
        for (; *p != AV_PIX_FMT_NONE; p++) {
149
1184
            const char *name = av_get_pix_fmt_name(*p);
150
1184
            avio_printf(s, "%s|", name);
151
        }
152
290
        len = avio_close_dyn_buf(s, &ret);
153
290
        ret[len - 1] = 0;
154
290
        return ret;
155
    } else
156
1018
        return NULL;
157
}
158
159
/* Define a function for building a string containing a list of
160
 * allowed formats. */
161
#define DEF_CHOOSE_FORMAT(suffix, type, var, supported_list, none, get_name)   \
162
static char *choose_ ## suffix (OutputFilter *ofilter)                         \
163
{                                                                              \
164
    if (ofilter->var != none) {                                                \
165
        get_name(ofilter->var);                                                \
166
        return av_strdup(name);                                                \
167
    } else if (ofilter->supported_list) {                                      \
168
        const type *p;                                                         \
169
        AVIOContext *s = NULL;                                                 \
170
        uint8_t *ret;                                                          \
171
        int len;                                                               \
172
                                                                               \
173
        if (avio_open_dyn_buf(&s) < 0)                                         \
174
            exit_program(1);                                                           \
175
                                                                               \
176
        for (p = ofilter->supported_list; *p != none; p++) {                   \
177
            get_name(*p);                                                      \
178
            avio_printf(s, "%s|", name);                                       \
179
        }                                                                      \
180
        len = avio_close_dyn_buf(s, &ret);                                     \
181
        ret[len - 1] = 0;                                                      \
182
        return ret;                                                            \
183
    } else                                                                     \
184
        return NULL;                                                           \
185
}
186
187
//DEF_CHOOSE_FORMAT(pix_fmts, enum AVPixelFormat, format, formats, AV_PIX_FMT_NONE,
188
//                  GET_PIX_FMT_NAME)
189
190


2274
DEF_CHOOSE_FORMAT(sample_fmts, enum AVSampleFormat, format, formats,
191
                  AV_SAMPLE_FMT_NONE, GET_SAMPLE_FMT_NAME)
192
193


1389
DEF_CHOOSE_FORMAT(sample_rates, int, sample_rate, sample_rates, 0,
194
                  GET_SAMPLE_RATE_NAME)
195
196


1357
DEF_CHOOSE_FORMAT(channel_layouts, uint64_t, channel_layout, channel_layouts, 0,
197
                  GET_CH_LAYOUT_NAME)
198
199
5707
int init_simple_filtergraph(InputStream *ist, OutputStream *ost)
200
{
201
5707
    FilterGraph *fg = av_mallocz(sizeof(*fg));
202
203
5707
    if (!fg)
204
        exit_program(1);
205
5707
    fg->index = nb_filtergraphs;
206
207
5707
    GROW_ARRAY(fg->outputs, fg->nb_outputs);
208
5707
    if (!(fg->outputs[0] = av_mallocz(sizeof(*fg->outputs[0]))))
209
        exit_program(1);
210
5707
    fg->outputs[0]->ost   = ost;
211
5707
    fg->outputs[0]->graph = fg;
212
5707
    fg->outputs[0]->format = -1;
213
214
5707
    ost->filter = fg->outputs[0];
215
216
5707
    GROW_ARRAY(fg->inputs, fg->nb_inputs);
217
5707
    if (!(fg->inputs[0] = av_mallocz(sizeof(*fg->inputs[0]))))
218
        exit_program(1);
219
5707
    fg->inputs[0]->ist   = ist;
220
5707
    fg->inputs[0]->graph = fg;
221
5707
    fg->inputs[0]->format = -1;
222
223
5707
    fg->inputs[0]->frame_queue = av_fifo_alloc(8 * sizeof(AVFrame*));
224
5707
    if (!fg->inputs[0]->frame_queue)
225
        exit_program(1);
226
227
5707
    GROW_ARRAY(ist->filters, ist->nb_filters);
228
5707
    ist->filters[ist->nb_filters - 1] = fg->inputs[0];
229
230
5707
    GROW_ARRAY(filtergraphs, nb_filtergraphs);
231
5707
    filtergraphs[nb_filtergraphs - 1] = fg;
232
233
5707
    return 0;
234
}
235
236
142
static char *describe_filter_link(FilterGraph *fg, AVFilterInOut *inout, int in)
237
{
238
142
    AVFilterContext *ctx = inout->filter_ctx;
239
142
    AVFilterPad *pads = in ? ctx->input_pads  : ctx->output_pads;
240
142
    int       nb_pads = in ? ctx->nb_inputs   : ctx->nb_outputs;
241
    AVIOContext *pb;
242
142
    uint8_t *res = NULL;
243
244
142
    if (avio_open_dyn_buf(&pb) < 0)
245
        exit_program(1);
246
247
142
    avio_printf(pb, "%s", ctx->filter->name);
248
142
    if (nb_pads > 1)
249
45
        avio_printf(pb, ":%s", avfilter_pad_get_name(pads, inout->pad_idx));
250
142
    avio_w8(pb, 0);
251
142
    avio_close_dyn_buf(pb, &res);
252
142
    return res;
253
}
254
255
60
static void init_input_filter(FilterGraph *fg, AVFilterInOut *in)
256
{
257
60
    InputStream *ist = NULL;
258
60
    enum AVMediaType type = avfilter_pad_get_type(in->filter_ctx->input_pads, in->pad_idx);
259
    int i;
260
261
    // TODO: support other filter types
262

60
    if (type != AVMEDIA_TYPE_VIDEO && type != AVMEDIA_TYPE_AUDIO) {
263
        av_log(NULL, AV_LOG_FATAL, "Only video and audio filters supported "
264
               "currently.\n");
265
        exit_program(1);
266
    }
267
268
60
    if (in->name) {
269
        AVFormatContext *s;
270
12
        AVStream       *st = NULL;
271
        char *p;
272
12
        int file_idx = strtol(in->name, &p, 0);
273
274

12
        if (file_idx < 0 || file_idx >= nb_input_files) {
275
            av_log(NULL, AV_LOG_FATAL, "Invalid file index %d in filtergraph description %s.\n",
276
                   file_idx, fg->graph_desc);
277
            exit_program(1);
278
        }
279
12
        s = input_files[file_idx]->ctx;
280
281
16
        for (i = 0; i < s->nb_streams; i++) {
282
16
            enum AVMediaType stream_type = s->streams[i]->codecpar->codec_type;
283

16
            if (stream_type != type &&
284
5
                !(stream_type == AVMEDIA_TYPE_SUBTITLE &&
285
                  type == AVMEDIA_TYPE_VIDEO /* sub2video hack */))
286
2
                continue;
287

14
            if (check_stream_specifier(s, s->streams[i], *p == ':' ? p + 1 : p) == 1) {
288
12
                st = s->streams[i];
289
12
                break;
290
            }
291
        }
292
12
        if (!st) {
293
            av_log(NULL, AV_LOG_FATAL, "Stream specifier '%s' in filtergraph description %s "
294
                   "matches no streams.\n", p, fg->graph_desc);
295
            exit_program(1);
296
        }
297
12
        ist = input_streams[input_files[file_idx]->ist_index + st->index];
298
12
        if (ist->user_set_discard == AVDISCARD_ALL) {
299
            av_log(NULL, AV_LOG_FATAL, "Stream specifier '%s' in filtergraph description %s "
300
                   "matches a disabled input stream.\n", p, fg->graph_desc);
301
            exit_program(1);
302
        }
303
    } else {
304
        /* find the first unused stream of corresponding type */
305
66
        for (i = 0; i < nb_input_streams; i++) {
306
66
            ist = input_streams[i];
307
66
            if (ist->user_set_discard == AVDISCARD_ALL)
308
                continue;
309

66
            if (ist->dec_ctx->codec_type == type && ist->discard)
310
48
                break;
311
        }
312
48
        if (i == nb_input_streams) {
313
            av_log(NULL, AV_LOG_FATAL, "Cannot find a matching stream for "
314
                   "unlabeled input pad %d on filter %s\n", in->pad_idx,
315
                   in->filter_ctx->name);
316
            exit_program(1);
317
        }
318
    }
319
60
    av_assert0(ist);
320
321
60
    ist->discard         = 0;
322
60
    ist->decoding_needed |= DECODING_FOR_FILTER;
323
60
    ist->st->discard = AVDISCARD_NONE;
324
325
60
    GROW_ARRAY(fg->inputs, fg->nb_inputs);
326
60
    if (!(fg->inputs[fg->nb_inputs - 1] = av_mallocz(sizeof(*fg->inputs[0]))))
327
        exit_program(1);
328
60
    fg->inputs[fg->nb_inputs - 1]->ist   = ist;
329
60
    fg->inputs[fg->nb_inputs - 1]->graph = fg;
330
60
    fg->inputs[fg->nb_inputs - 1]->format = -1;
331
60
    fg->inputs[fg->nb_inputs - 1]->type = ist->st->codecpar->codec_type;
332
60
    fg->inputs[fg->nb_inputs - 1]->name = describe_filter_link(fg, in, 1);
333
334
60
    fg->inputs[fg->nb_inputs - 1]->frame_queue = av_fifo_alloc(8 * sizeof(AVFrame*));
335
60
    if (!fg->inputs[fg->nb_inputs - 1]->frame_queue)
336
        exit_program(1);
337
338
60
    GROW_ARRAY(ist->filters, ist->nb_filters);
339
60
    ist->filters[ist->nb_filters - 1] = fg->inputs[fg->nb_inputs - 1];
340
60
}
341
342
79
int init_complex_filtergraph(FilterGraph *fg)
343
{
344
    AVFilterInOut *inputs, *outputs, *cur;
345
    AVFilterGraph *graph;
346
79
    int ret = 0;
347
348
    /* this graph is only used for determining the kinds of inputs
349
     * and outputs we have, and is discarded on exit from this function */
350
79
    graph = avfilter_graph_alloc();
351
79
    if (!graph)
352
        return AVERROR(ENOMEM);
353
79
    graph->nb_threads = 1;
354
355
79
    ret = avfilter_graph_parse2(graph, fg->graph_desc, &inputs, &outputs);
356
79
    if (ret < 0)
357
        goto fail;
358
359
139
    for (cur = inputs; cur; cur = cur->next)
360
60
        init_input_filter(fg, cur);
361
362
161
    for (cur = outputs; cur;) {
363
82
        GROW_ARRAY(fg->outputs, fg->nb_outputs);
364
82
        fg->outputs[fg->nb_outputs - 1] = av_mallocz(sizeof(*fg->outputs[0]));
365
82
        if (!fg->outputs[fg->nb_outputs - 1])
366
            exit_program(1);
367
368
82
        fg->outputs[fg->nb_outputs - 1]->graph   = fg;
369
82
        fg->outputs[fg->nb_outputs - 1]->out_tmp = cur;
370
82
        fg->outputs[fg->nb_outputs - 1]->type    = avfilter_pad_get_type(cur->filter_ctx->output_pads,
371
                                                                         cur->pad_idx);
372
82
        fg->outputs[fg->nb_outputs - 1]->name = describe_filter_link(fg, cur, 0);
373
82
        cur = cur->next;
374
82
        fg->outputs[fg->nb_outputs - 1]->out_tmp->next = NULL;
375
    }
376
377
79
fail:
378
79
    avfilter_inout_free(&inputs);
379
79
    avfilter_graph_free(&graph);
380
79
    return ret;
381
}
382
383
11632
static int insert_trim(int64_t start_time, int64_t duration,
384
                       AVFilterContext **last_filter, int *pad_idx,
385
                       const char *filter_name)
386
{
387
11632
    AVFilterGraph *graph = (*last_filter)->graph;
388
    AVFilterContext *ctx;
389
    const AVFilter *trim;
390
11632
    enum AVMediaType type = avfilter_pad_get_type((*last_filter)->output_pads, *pad_idx);
391
11632
    const char *name = (type == AVMEDIA_TYPE_VIDEO) ? "trim" : "atrim";
392
11632
    int ret = 0;
393
394

11632
    if (duration == INT64_MAX && start_time == AV_NOPTS_VALUE)
395
11459
        return 0;
396
397
173
    trim = avfilter_get_by_name(name);
398
173
    if (!trim) {
399
        av_log(NULL, AV_LOG_ERROR, "%s filter not present, cannot limit "
400
               "recording time.\n", name);
401
        return AVERROR_FILTER_NOT_FOUND;
402
    }
403
404
173
    ctx = avfilter_graph_alloc_filter(graph, trim, filter_name);
405
173
    if (!ctx)
406
        return AVERROR(ENOMEM);
407
408
173
    if (duration != INT64_MAX) {
409
157
        ret = av_opt_set_int(ctx, "durationi", duration,
410
                                AV_OPT_SEARCH_CHILDREN);
411
    }
412

173
    if (ret >= 0 && start_time != AV_NOPTS_VALUE) {
413
16
        ret = av_opt_set_int(ctx, "starti", start_time,
414
                                AV_OPT_SEARCH_CHILDREN);
415
    }
416
173
    if (ret < 0) {
417
        av_log(ctx, AV_LOG_ERROR, "Error configuring the %s filter", name);
418
        return ret;
419
    }
420
421
173
    ret = avfilter_init_str(ctx, NULL);
422
173
    if (ret < 0)
423
        return ret;
424
425
173
    ret = avfilter_link(*last_filter, *pad_idx, ctx, 0);
426
173
    if (ret < 0)
427
        return ret;
428
429
173
    *last_filter = ctx;
430
173
    *pad_idx     = 0;
431
173
    return 0;
432
}
433
434
static int insert_filter(AVFilterContext **last_filter, int *pad_idx,
435
                         const char *filter_name, const char *args)
436
{
437
    AVFilterGraph *graph = (*last_filter)->graph;
438
    AVFilterContext *ctx;
439
    int ret;
440
441
    ret = avfilter_graph_create_filter(&ctx,
442
                                       avfilter_get_by_name(filter_name),
443
                                       filter_name, args, NULL, graph);
444
    if (ret < 0)
445
        return ret;
446
447
    ret = avfilter_link(*last_filter, *pad_idx, ctx, 0);
448
    if (ret < 0)
449
        return ret;
450
451
    *last_filter = ctx;
452
    *pad_idx     = 0;
453
    return 0;
454
}
455
456
4709
static int configure_output_video_filter(FilterGraph *fg, OutputFilter *ofilter, AVFilterInOut *out)
457
{
458
    char *pix_fmts;
459
4709
    OutputStream *ost = ofilter->ost;
460
4709
    OutputFile    *of = output_files[ost->file_index];
461
4709
    AVFilterContext *last_filter = out->filter_ctx;
462
4709
    int pad_idx = out->pad_idx;
463
    int ret;
464
    char name[255];
465
466
4709
    snprintf(name, sizeof(name), "out_%d_%d", ost->file_index, ost->index);
467
4709
    ret = avfilter_graph_create_filter(&ofilter->filter,
468
                                       avfilter_get_by_name("buffersink"),
469
                                       name, NULL, NULL, fg->graph);
470
471
4709
    if (ret < 0)
472
        return ret;
473
474

4709
    if ((ofilter->width || ofilter->height) && ofilter->ost->autoscale) {
475
        char args[255];
476
        AVFilterContext *filter;
477
645
        AVDictionaryEntry *e = NULL;
478
479
645
        snprintf(args, sizeof(args), "%d:%d",
480
                 ofilter->width, ofilter->height);
481
482
1924
        while ((e = av_dict_get(ost->sws_dict, "", e,
483
                                AV_DICT_IGNORE_SUFFIX))) {
484
1279
            av_strlcatf(args, sizeof(args), ":%s=%s", e->key, e->value);
485
        }
486
487
645
        snprintf(name, sizeof(name), "scaler_out_%d_%d",
488
                 ost->file_index, ost->index);
489
645
        if ((ret = avfilter_graph_create_filter(&filter, avfilter_get_by_name("scale"),
490
                                                name, args, NULL, fg->graph)) < 0)
491
            return ret;
492
645
        if ((ret = avfilter_link(last_filter, pad_idx, filter, 0)) < 0)
493
            return ret;
494
495
645
        last_filter = filter;
496
645
        pad_idx = 0;
497
    }
498
499
4709
    if ((pix_fmts = choose_pix_fmts(ofilter))) {
500
        AVFilterContext *filter;
501
3691
        snprintf(name, sizeof(name), "format_out_%d_%d",
502
                 ost->file_index, ost->index);
503
3691
        ret = avfilter_graph_create_filter(&filter,
504
                                           avfilter_get_by_name("format"),
505
                                           "format", pix_fmts, NULL, fg->graph);
506
3691
        av_freep(&pix_fmts);
507
3691
        if (ret < 0)
508
            return ret;
509
3691
        if ((ret = avfilter_link(last_filter, pad_idx, filter, 0)) < 0)
510
            return ret;
511
512
3691
        last_filter = filter;
513
3691
        pad_idx     = 0;
514
    }
515
516
    if (ost->frame_rate.num && 0) {
517
        AVFilterContext *fps;
518
        char args[255];
519
520
        snprintf(args, sizeof(args), "fps=%d/%d", ost->frame_rate.num,
521
                 ost->frame_rate.den);
522
        snprintf(name, sizeof(name), "fps_out_%d_%d",
523
                 ost->file_index, ost->index);
524
        ret = avfilter_graph_create_filter(&fps, avfilter_get_by_name("fps"),
525
                                           name, args, NULL, fg->graph);
526
        if (ret < 0)
527
            return ret;
528
529
        ret = avfilter_link(last_filter, pad_idx, fps, 0);
530
        if (ret < 0)
531
            return ret;
532
        last_filter = fps;
533
        pad_idx = 0;
534
    }
535
536
4709
    snprintf(name, sizeof(name), "trim_out_%d_%d",
537
             ost->file_index, ost->index);
538
4709
    ret = insert_trim(of->start_time, of->recording_time,
539
                      &last_filter, &pad_idx, name);
540
4709
    if (ret < 0)
541
        return ret;
542
543
544
4709
    if ((ret = avfilter_link(last_filter, pad_idx, ofilter->filter, 0)) < 0)
545
        return ret;
546
547
4709
    return 0;
548
}
549
550
1119
static int configure_output_audio_filter(FilterGraph *fg, OutputFilter *ofilter, AVFilterInOut *out)
551
{
552
1119
    OutputStream *ost = ofilter->ost;
553
1119
    OutputFile    *of = output_files[ost->file_index];
554
1119
    AVCodecContext *codec  = ost->enc_ctx;
555
1119
    AVFilterContext *last_filter = out->filter_ctx;
556
1119
    int pad_idx = out->pad_idx;
557
    char *sample_fmts, *sample_rates, *channel_layouts;
558
    char name[255];
559
    int ret;
560
561
1119
    snprintf(name, sizeof(name), "out_%d_%d", ost->file_index, ost->index);
562
1119
    ret = avfilter_graph_create_filter(&ofilter->filter,
563
                                       avfilter_get_by_name("abuffersink"),
564
                                       name, NULL, NULL, fg->graph);
565
1119
    if (ret < 0)
566
        return ret;
567
1119
    if ((ret = av_opt_set_int(ofilter->filter, "all_channel_counts", 1, AV_OPT_SEARCH_CHILDREN)) < 0)
568
        return ret;
569
570
#define AUTO_INSERT_FILTER(opt_name, filter_name, arg) do {                 \
571
    AVFilterContext *filt_ctx;                                              \
572
                                                                            \
573
    av_log(NULL, AV_LOG_INFO, opt_name " is forwarded to lavfi "            \
574
           "similarly to -af " filter_name "=%s.\n", arg);                  \
575
                                                                            \
576
    ret = avfilter_graph_create_filter(&filt_ctx,                           \
577
                                       avfilter_get_by_name(filter_name),   \
578
                                       filter_name, arg, NULL, fg->graph);  \
579
    if (ret < 0)                                                            \
580
        return ret;                                                         \
581
                                                                            \
582
    ret = avfilter_link(last_filter, pad_idx, filt_ctx, 0);                 \
583
    if (ret < 0)                                                            \
584
        return ret;                                                         \
585
                                                                            \
586
    last_filter = filt_ctx;                                                 \
587
    pad_idx = 0;                                                            \
588
} while (0)
589
1119
    if (ost->audio_channels_mapped) {
590
        int i;
591
        AVBPrint pan_buf;
592
6
        av_bprint_init(&pan_buf, 256, 8192);
593
6
        av_bprintf(&pan_buf, "0x%"PRIx64,
594
                   av_get_default_channel_layout(ost->audio_channels_mapped));
595
16
        for (i = 0; i < ost->audio_channels_mapped; i++)
596
10
            if (ost->audio_channels_map[i] != -1)
597
9
                av_bprintf(&pan_buf, "|c%d=c%d", i, ost->audio_channels_map[i]);
598
599

6
        AUTO_INSERT_FILTER("-map_channel", "pan", pan_buf.str);
600
6
        av_bprint_finalize(&pan_buf, NULL);
601
    }
602
603

1119
    if (codec->channels && !codec->channel_layout)
604
12
        codec->channel_layout = av_get_default_channel_layout(codec->channels);
605
606
1119
    sample_fmts     = choose_sample_fmts(ofilter);
607
1119
    sample_rates    = choose_sample_rates(ofilter);
608
1119
    channel_layouts = choose_channel_layouts(ofilter);
609

1119
    if (sample_fmts || sample_rates || channel_layouts) {
610
        AVFilterContext *format;
611
        char args[256];
612
1119
        args[0] = 0;
613
614
1119
        if (sample_fmts)
615
1119
            av_strlcatf(args, sizeof(args), "sample_fmts=%s:",
616
                            sample_fmts);
617
1119
        if (sample_rates)
618
61
            av_strlcatf(args, sizeof(args), "sample_rates=%s:",
619
                            sample_rates);
620
1119
        if (channel_layouts)
621
55
            av_strlcatf(args, sizeof(args), "channel_layouts=%s:",
622
                            channel_layouts);
623
624
1119
        av_freep(&sample_fmts);
625
1119
        av_freep(&sample_rates);
626
1119
        av_freep(&channel_layouts);
627
628
1119
        snprintf(name, sizeof(name), "format_out_%d_%d",
629
                 ost->file_index, ost->index);
630
1119
        ret = avfilter_graph_create_filter(&format,
631
                                           avfilter_get_by_name("aformat"),
632
                                           name, args, NULL, fg->graph);
633
1119
        if (ret < 0)
634
            return ret;
635
636
1119
        ret = avfilter_link(last_filter, pad_idx, format, 0);
637
1119
        if (ret < 0)
638
            return ret;
639
640
1119
        last_filter = format;
641
1119
        pad_idx = 0;
642
    }
643
644
    if (audio_volume != 256 && 0) {
645
        char args[256];
646
647
        snprintf(args, sizeof(args), "%f", audio_volume / 256.);
648
        AUTO_INSERT_FILTER("-vol", "volume", args);
649
    }
650
651

1119
    if (ost->apad && of->shortest) {
652
        char args[256];
653
        int i;
654
655
        for (i=0; i<of->ctx->nb_streams; i++)
656
            if (of->ctx->streams[i]->codecpar->codec_type == AVMEDIA_TYPE_VIDEO)
657
                break;
658
659
        if (i<of->ctx->nb_streams) {
660
            snprintf(args, sizeof(args), "%s", ost->apad);
661
            AUTO_INSERT_FILTER("-apad", "apad", args);
662
        }
663
    }
664
665
1119
    snprintf(name, sizeof(name), "trim for output stream %d:%d",
666
             ost->file_index, ost->index);
667
1119
    ret = insert_trim(of->start_time, of->recording_time,
668
                      &last_filter, &pad_idx, name);
669
1119
    if (ret < 0)
670
        return ret;
671
672
1119
    if ((ret = avfilter_link(last_filter, pad_idx, ofilter->filter, 0)) < 0)
673
        return ret;
674
675
1119
    return 0;
676
}
677
678
5828
int configure_output_filter(FilterGraph *fg, OutputFilter *ofilter, AVFilterInOut *out)
679
{
680
5828
    if (!ofilter->ost) {
681
        av_log(NULL, AV_LOG_FATAL, "Filter %s has an unconnected output\n", ofilter->name);
682
        exit_program(1);
683
    }
684
685
5828
    switch (avfilter_pad_get_type(out->filter_ctx->output_pads, out->pad_idx)) {
686
4709
    case AVMEDIA_TYPE_VIDEO: return configure_output_video_filter(fg, ofilter, out);
687
1119
    case AVMEDIA_TYPE_AUDIO: return configure_output_audio_filter(fg, ofilter, out);
688
    default: av_assert0(0);
689
    }
690
}
691
692
5970
void check_filter_outputs(void)
693
{
694
    int i;
695
11756
    for (i = 0; i < nb_filtergraphs; i++) {
696
        int n;
697
11575
        for (n = 0; n < filtergraphs[i]->nb_outputs; n++) {
698
5789
            OutputFilter *output = filtergraphs[i]->outputs[n];
699
5789
            if (!output->ost) {
700
                av_log(NULL, AV_LOG_FATAL, "Filter %s has an unconnected output\n", output->name);
701
                exit_program(1);
702
            }
703
        }
704
    }
705
5970
}
706
707
4
static int sub2video_prepare(InputStream *ist, InputFilter *ifilter)
708
{
709
4
    AVFormatContext *avf = input_files[ist->file_index]->ctx;
710
    int i, w, h;
711
712
    /* Compute the size of the canvas for the subtitles stream.
713
       If the subtitles codecpar has set a size, use it. Otherwise use the
714
       maximum dimensions of the video streams in the same file. */
715
4
    w = ifilter->width;
716
4
    h = ifilter->height;
717

4
    if (!(w && h)) {
718
12
        for (i = 0; i < avf->nb_streams; i++) {
719
8
            if (avf->streams[i]->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) {
720
1
                w = FFMAX(w, avf->streams[i]->codecpar->width);
721
1
                h = FFMAX(h, avf->streams[i]->codecpar->height);
722
            }
723
        }
724

4
        if (!(w && h)) {
725
3
            w = FFMAX(w, 720);
726
3
            h = FFMAX(h, 576);
727
        }
728
4
        av_log(avf, AV_LOG_INFO, "sub2video: using %dx%d canvas\n", w, h);
729
    }
730
4
    ist->sub2video.w = ifilter->width  = w;
731
4
    ist->sub2video.h = ifilter->height = h;
732
733
4
    ifilter->width  = ist->dec_ctx->width  ? ist->dec_ctx->width  : ist->sub2video.w;
734
4
    ifilter->height = ist->dec_ctx->height ? ist->dec_ctx->height : ist->sub2video.h;
735
736
    /* rectangles are AV_PIX_FMT_PAL8, but we have no guarantee that the
737
       palettes for all rectangles are identical or compatible */
738
4
    ifilter->format = AV_PIX_FMT_RGB32;
739
740
4
    ist->sub2video.frame = av_frame_alloc();
741
4
    if (!ist->sub2video.frame)
742
        return AVERROR(ENOMEM);
743
4
    ist->sub2video.last_pts = INT64_MIN;
744
4
    ist->sub2video.end_pts  = INT64_MIN;
745
746
    /* sub2video structure has been (re-)initialized.
747
       Mark it as such so that the system will be
748
       initialized with the first received heartbeat. */
749
4
    ist->sub2video.initialize = 1;
750
751
4
    return 0;
752
}
753
754
4682
static int configure_input_video_filter(FilterGraph *fg, InputFilter *ifilter,
755
                                        AVFilterInOut *in)
756
{
757
    AVFilterContext *last_filter;
758
4682
    const AVFilter *buffer_filt = avfilter_get_by_name("buffer");
759
4682
    InputStream *ist = ifilter->ist;
760
4682
    InputFile     *f = input_files[ist->file_index];
761
4682
    AVRational tb = ist->framerate.num ? av_inv_q(ist->framerate) :
762
4659
                                         ist->st->time_base;
763
4682
    AVRational fr = ist->framerate;
764
    AVRational sar;
765
    AVBPrint args;
766
    char name[255];
767
4682
    int ret, pad_idx = 0;
768
4682
    int64_t tsoffset = 0;
769
4682
    AVBufferSrcParameters *par = av_buffersrc_parameters_alloc();
770
771
4682
    if (!par)
772
        return AVERROR(ENOMEM);
773
4682
    memset(par, 0, sizeof(*par));
774
4682
    par->format = AV_PIX_FMT_NONE;
775
776
4682
    if (ist->dec_ctx->codec_type == AVMEDIA_TYPE_AUDIO) {
777
        av_log(NULL, AV_LOG_ERROR, "Cannot connect video filter to audio input\n");
778
        ret = AVERROR(EINVAL);
779
        goto fail;
780
    }
781
782
4682
    if (!fr.num)
783
4659
        fr = av_guess_frame_rate(input_files[ist->file_index]->ctx, ist->st, NULL);
784
785
4682
    if (ist->dec_ctx->codec_type == AVMEDIA_TYPE_SUBTITLE) {
786
4
        ret = sub2video_prepare(ist, ifilter);
787
4
        if (ret < 0)
788
            goto fail;
789
    }
790
791
4682
    sar = ifilter->sample_aspect_ratio;
792
4682
    if(!sar.den)
793
4
        sar = (AVRational){0,1};
794
4682
    av_bprint_init(&args, 0, AV_BPRINT_SIZE_AUTOMATIC);
795
4682
    av_bprintf(&args,
796
             "video_size=%dx%d:pix_fmt=%d:time_base=%d/%d:"
797
             "pixel_aspect=%d/%d",
798
             ifilter->width, ifilter->height, ifilter->format,
799
             tb.num, tb.den, sar.num, sar.den);
800

4682
    if (fr.num && fr.den)
801
4678
        av_bprintf(&args, ":frame_rate=%d/%d", fr.num, fr.den);
802
4682
    snprintf(name, sizeof(name), "graph %d input from stream %d:%d", fg->index,
803
4682
             ist->file_index, ist->st->index);
804
805
806
4682
    if ((ret = avfilter_graph_create_filter(&ifilter->filter, buffer_filt, name,
807
4682
                                            args.str, NULL, fg->graph)) < 0)
808
        goto fail;
809
4682
    par->hw_frames_ctx = ifilter->hw_frames_ctx;
810
4682
    ret = av_buffersrc_parameters_set(ifilter->filter, par);
811
4682
    if (ret < 0)
812
        goto fail;
813
4682
    av_freep(&par);
814
4682
    last_filter = ifilter->filter;
815
816
4682
    if (ist->autorotate) {
817
4682
        double theta = get_rotation(ist->st);
818
819
4682
        if (fabs(theta - 90) < 1.0) {
820
            ret = insert_filter(&last_filter, &pad_idx, "transpose", "clock");
821
4682
        } else if (fabs(theta - 180) < 1.0) {
822
            ret = insert_filter(&last_filter, &pad_idx, "hflip", NULL);
823
            if (ret < 0)
824
                return ret;
825
            ret = insert_filter(&last_filter, &pad_idx, "vflip", NULL);
826
4682
        } else if (fabs(theta - 270) < 1.0) {
827
            ret = insert_filter(&last_filter, &pad_idx, "transpose", "cclock");
828
4682
        } else if (fabs(theta) > 1.0) {
829
            char rotate_buf[64];
830
            snprintf(rotate_buf, sizeof(rotate_buf), "%f*PI/180", theta);
831
            ret = insert_filter(&last_filter, &pad_idx, "rotate", rotate_buf);
832
        }
833
4682
        if (ret < 0)
834
            return ret;
835
    }
836
837
4682
    if (do_deinterlace) {
838
        AVFilterContext *yadif;
839
840
        snprintf(name, sizeof(name), "deinterlace_in_%d_%d",
841
                 ist->file_index, ist->st->index);
842
        if ((ret = avfilter_graph_create_filter(&yadif,
843
                                                avfilter_get_by_name("yadif"),
844
                                                name, "", NULL,
845
                                                fg->graph)) < 0)
846
            return ret;
847
848
        if ((ret = avfilter_link(last_filter, 0, yadif, 0)) < 0)
849
            return ret;
850
851
        last_filter = yadif;
852
    }
853
854
4682
    snprintf(name, sizeof(name), "trim_in_%d_%d",
855
4682
             ist->file_index, ist->st->index);
856
4682
    if (copy_ts) {
857
2
        tsoffset = f->start_time == AV_NOPTS_VALUE ? 0 : f->start_time;
858

2
        if (!start_at_zero && f->ctx->start_time != AV_NOPTS_VALUE)
859
1
            tsoffset += f->ctx->start_time;
860
    }
861

4682
    ret = insert_trim(((f->start_time == AV_NOPTS_VALUE) || !f->accurate_seek) ?
862
                      AV_NOPTS_VALUE : tsoffset, f->recording_time,
863
                      &last_filter, &pad_idx, name);
864
4682
    if (ret < 0)
865
        return ret;
866
867
4682
    if ((ret = avfilter_link(last_filter, 0, in->filter_ctx, in->pad_idx)) < 0)
868
        return ret;
869
4682
    return 0;
870
fail:
871
    av_freep(&par);
872
873
    return ret;
874
}
875
876
1122
static int configure_input_audio_filter(FilterGraph *fg, InputFilter *ifilter,
877
                                        AVFilterInOut *in)
878
{
879
    AVFilterContext *last_filter;
880
1122
    const AVFilter *abuffer_filt = avfilter_get_by_name("abuffer");
881
1122
    InputStream *ist = ifilter->ist;
882
1122
    InputFile     *f = input_files[ist->file_index];
883
    AVBPrint args;
884
    char name[255];
885
1122
    int ret, pad_idx = 0;
886
1122
    int64_t tsoffset = 0;
887
888
1122
    if (ist->dec_ctx->codec_type != AVMEDIA_TYPE_AUDIO) {
889
        av_log(NULL, AV_LOG_ERROR, "Cannot connect audio filter to non audio input\n");
890
        return AVERROR(EINVAL);
891
    }
892
893
1122
    av_bprint_init(&args, 0, AV_BPRINT_SIZE_AUTOMATIC);
894
1122
    av_bprintf(&args, "time_base=%d/%d:sample_rate=%d:sample_fmt=%s",
895
             1, ifilter->sample_rate,
896
             ifilter->sample_rate,
897
1122
             av_get_sample_fmt_name(ifilter->format));
898
1122
    if (ifilter->channel_layout)
899
1116
        av_bprintf(&args, ":channel_layout=0x%"PRIx64,
900
                   ifilter->channel_layout);
901
    else
902
6
        av_bprintf(&args, ":channels=%d", ifilter->channels);
903
1122
    snprintf(name, sizeof(name), "graph_%d_in_%d_%d", fg->index,
904
1122
             ist->file_index, ist->st->index);
905
906
1122
    if ((ret = avfilter_graph_create_filter(&ifilter->filter, abuffer_filt,
907
1122
                                            name, args.str, NULL,
908
                                            fg->graph)) < 0)
909
        return ret;
910
1122
    last_filter = ifilter->filter;
911
912
#define AUTO_INSERT_FILTER_INPUT(opt_name, filter_name, arg) do {                 \
913
    AVFilterContext *filt_ctx;                                              \
914
                                                                            \
915
    av_log(NULL, AV_LOG_INFO, opt_name " is forwarded to lavfi "            \
916
           "similarly to -af " filter_name "=%s.\n", arg);                  \
917
                                                                            \
918
    snprintf(name, sizeof(name), "graph_%d_%s_in_%d_%d",      \
919
                fg->index, filter_name, ist->file_index, ist->st->index);   \
920
    ret = avfilter_graph_create_filter(&filt_ctx,                           \
921
                                       avfilter_get_by_name(filter_name),   \
922
                                       name, arg, NULL, fg->graph);         \
923
    if (ret < 0)                                                            \
924
        return ret;                                                         \
925
                                                                            \
926
    ret = avfilter_link(last_filter, 0, filt_ctx, 0);                       \
927
    if (ret < 0)                                                            \
928
        return ret;                                                         \
929
                                                                            \
930
    last_filter = filt_ctx;                                                 \
931
} while (0)
932
933
1122
    if (audio_sync_method > 0) {
934
        char args[256] = {0};
935
936
        av_strlcatf(args, sizeof(args), "async=%d", audio_sync_method);
937
        if (audio_drift_threshold != 0.1)
938
            av_strlcatf(args, sizeof(args), ":min_hard_comp=%f", audio_drift_threshold);
939
        if (!fg->reconfiguration)
940
            av_strlcatf(args, sizeof(args), ":first_pts=0");
941
        AUTO_INSERT_FILTER_INPUT("-async", "aresample", args);
942
    }
943
944
//     if (ost->audio_channels_mapped) {
945
//         int i;
946
//         AVBPrint pan_buf;
947
//         av_bprint_init(&pan_buf, 256, 8192);
948
//         av_bprintf(&pan_buf, "0x%"PRIx64,
949
//                    av_get_default_channel_layout(ost->audio_channels_mapped));
950
//         for (i = 0; i < ost->audio_channels_mapped; i++)
951
//             if (ost->audio_channels_map[i] != -1)
952
//                 av_bprintf(&pan_buf, ":c%d=c%d", i, ost->audio_channels_map[i]);
953
//         AUTO_INSERT_FILTER_INPUT("-map_channel", "pan", pan_buf.str);
954
//         av_bprint_finalize(&pan_buf, NULL);
955
//     }
956
957
1122
    if (audio_volume != 256) {
958
        char args[256];
959
960
        av_log(NULL, AV_LOG_WARNING, "-vol has been deprecated. Use the volume "
961
               "audio filter instead.\n");
962
963
        snprintf(args, sizeof(args), "%f", audio_volume / 256.);
964
        AUTO_INSERT_FILTER_INPUT("-vol", "volume", args);
965
    }
966
967
1122
    snprintf(name, sizeof(name), "trim for input stream %d:%d",
968
1122
             ist->file_index, ist->st->index);
969
1122
    if (copy_ts) {
970
        tsoffset = f->start_time == AV_NOPTS_VALUE ? 0 : f->start_time;
971
        if (!start_at_zero && f->ctx->start_time != AV_NOPTS_VALUE)
972
            tsoffset += f->ctx->start_time;
973
    }
974

1122
    ret = insert_trim(((f->start_time == AV_NOPTS_VALUE) || !f->accurate_seek) ?
975
                      AV_NOPTS_VALUE : tsoffset, f->recording_time,
976
                      &last_filter, &pad_idx, name);
977
1122
    if (ret < 0)
978
        return ret;
979
980
1122
    if ((ret = avfilter_link(last_filter, 0, in->filter_ctx, in->pad_idx)) < 0)
981
        return ret;
982
983
1122
    return 0;
984
}
985
986
5804
static int configure_input_filter(FilterGraph *fg, InputFilter *ifilter,
987
                                  AVFilterInOut *in)
988
{
989
5804
    if (!ifilter->ist->dec) {
990
        av_log(NULL, AV_LOG_ERROR,
991
               "No decoder for stream #%d:%d, filtering impossible\n",
992
               ifilter->ist->file_index, ifilter->ist->st->index);
993
        return AVERROR_DECODER_NOT_FOUND;
994
    }
995
5804
    switch (avfilter_pad_get_type(in->filter_ctx->input_pads, in->pad_idx)) {
996
4682
    case AVMEDIA_TYPE_VIDEO: return configure_input_video_filter(fg, ifilter, in);
997
1122
    case AVMEDIA_TYPE_AUDIO: return configure_input_audio_filter(fg, ifilter, in);
998
    default: av_assert0(0);
999
    }
1000
}
1001
1002
5829
static void cleanup_filtergraph(FilterGraph *fg)
1003
{
1004
    int i;
1005
11661
    for (i = 0; i < fg->nb_outputs; i++)
1006
5832
        fg->outputs[i]->filter = (AVFilterContext *)NULL;
1007
11633
    for (i = 0; i < fg->nb_inputs; i++)
1008
5804
        fg->inputs[i]->filter = (AVFilterContext *)NULL;
1009
5829
    avfilter_graph_free(&fg->graph);
1010
5829
}
1011
1012
5825
int configure_filtergraph(FilterGraph *fg)
1013
{
1014
    AVFilterInOut *inputs, *outputs, *cur;
1015
5825
    int ret, i, simple = filtergraph_is_simple(fg);
1016
5825
    const char *graph_desc = simple ? fg->outputs[0]->ost->avfilter :
1017
                                      fg->graph_desc;
1018
1019
5825
    cleanup_filtergraph(fg);
1020
5825
    if (!(fg->graph = avfilter_graph_alloc()))
1021
        return AVERROR(ENOMEM);
1022
1023
5825
    if (simple) {
1024
5744
        OutputStream *ost = fg->outputs[0]->ost;
1025
        char args[512];
1026
5744
        AVDictionaryEntry *e = NULL;
1027
1028
5744
        fg->graph->nb_threads = filter_nbthreads;
1029
1030
5744
        args[0] = 0;
1031
14947
        while ((e = av_dict_get(ost->sws_dict, "", e,
1032
                                AV_DICT_IGNORE_SUFFIX))) {
1033
9203
            av_strlcatf(args, sizeof(args), "%s=%s:", e->key, e->value);
1034
        }
1035
5744
        if (strlen(args))
1036
5744
            args[strlen(args)-1] = 0;
1037
5744
        fg->graph->scale_sws_opts = av_strdup(args);
1038
1039
5744
        args[0] = 0;
1040
5796
        while ((e = av_dict_get(ost->swr_opts, "", e,
1041
                                AV_DICT_IGNORE_SUFFIX))) {
1042
52
            av_strlcatf(args, sizeof(args), "%s=%s:", e->key, e->value);
1043
        }
1044
5744
        if (strlen(args))
1045
52
            args[strlen(args)-1] = 0;
1046
5744
        av_opt_set(fg->graph, "aresample_swr_opts", args, 0);
1047
1048
5744
        args[0] = '\0';
1049
5750
        while ((e = av_dict_get(fg->outputs[0]->ost->resample_opts, "", e,
1050
                                AV_DICT_IGNORE_SUFFIX))) {
1051
6
            av_strlcatf(args, sizeof(args), "%s=%s:", e->key, e->value);
1052
        }
1053
5744
        if (strlen(args))
1054
6
            args[strlen(args) - 1] = '\0';
1055
1056
5744
        e = av_dict_get(ost->encoder_opts, "threads", NULL, 0);
1057
5744
        if (e)
1058
3316
            av_opt_set(fg->graph, "threads", e->value, 0);
1059
    } else {
1060
81
        fg->graph->nb_threads = filter_complex_nbthreads;
1061
    }
1062
1063
5825
    if ((ret = avfilter_graph_parse2(fg->graph, graph_desc, &inputs, &outputs)) < 0)
1064
        goto fail;
1065
1066
5825
    ret = hw_device_setup_for_filter(fg);
1067
5825
    if (ret < 0)
1068
        goto fail;
1069
1070


5825
    if (simple && (!inputs || inputs->next || !outputs || outputs->next)) {
1071
        const char *num_inputs;
1072
        const char *num_outputs;
1073
        if (!outputs) {
1074
            num_outputs = "0";
1075
        } else if (outputs->next) {
1076
            num_outputs = ">1";
1077
        } else {
1078
            num_outputs = "1";
1079
        }
1080
        if (!inputs) {
1081
            num_inputs = "0";
1082
        } else if (inputs->next) {
1083
            num_inputs = ">1";
1084
        } else {
1085
            num_inputs = "1";
1086
        }
1087
        av_log(NULL, AV_LOG_ERROR, "Simple filtergraph '%s' was expected "
1088
               "to have exactly 1 input and 1 output."
1089
               " However, it had %s input(s) and %s output(s)."
1090
               " Please adjust, or use a complex filtergraph (-filter_complex) instead.\n",
1091
               graph_desc, num_inputs, num_outputs);
1092
        ret = AVERROR(EINVAL);
1093
        goto fail;
1094
    }
1095
1096
11629
    for (cur = inputs, i = 0; cur; cur = cur->next, i++)
1097
5804
        if ((ret = configure_input_filter(fg, fg->inputs[i], cur)) < 0) {
1098
            avfilter_inout_free(&inputs);
1099
            avfilter_inout_free(&outputs);
1100
            goto fail;
1101
        }
1102
5825
    avfilter_inout_free(&inputs);
1103
1104
11653
    for (cur = outputs, i = 0; cur; cur = cur->next, i++)
1105
5828
        configure_output_filter(fg, fg->outputs[i], cur);
1106
5825
    avfilter_inout_free(&outputs);
1107
1108
5825
    if (!auto_conversion_filters)
1109
4189
        avfilter_graph_set_auto_convert(fg->graph, AVFILTER_AUTO_CONVERT_NONE);
1110
5825
    if ((ret = avfilter_graph_config(fg->graph, NULL)) < 0)
1111
4
        goto fail;
1112
1113
    /* limit the lists of allowed formats to the ones selected, to
1114
     * make sure they stay the same if the filtergraph is reconfigured later */
1115
11645
    for (i = 0; i < fg->nb_outputs; i++) {
1116
5824
        OutputFilter *ofilter = fg->outputs[i];
1117
5824
        AVFilterContext *sink = ofilter->filter;
1118
1119
5824
        ofilter->format = av_buffersink_get_format(sink);
1120
1121
5824
        ofilter->width  = av_buffersink_get_w(sink);
1122
5824
        ofilter->height = av_buffersink_get_h(sink);
1123
1124
5824
        ofilter->sample_rate    = av_buffersink_get_sample_rate(sink);
1125
5824
        ofilter->channel_layout = av_buffersink_get_channel_layout(sink);
1126
    }
1127
1128
5821
    fg->reconfiguration = 1;
1129
1130
11645
    for (i = 0; i < fg->nb_outputs; i++) {
1131
5824
        OutputStream *ost = fg->outputs[i]->ost;
1132
5824
        if (!ost->enc) {
1133
            /* identical to the same check in ffmpeg.c, needed because
1134
               complex filter graphs are initialized earlier */
1135
            av_log(NULL, AV_LOG_ERROR, "Encoder (codec %s) not found for output stream #%d:%d\n",
1136
                     avcodec_get_name(ost->st->codecpar->codec_id), ost->file_index, ost->index);
1137
            ret = AVERROR(EINVAL);
1138
            goto fail;
1139
        }
1140
5824
        if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
1141
1119
            !(ost->enc->capabilities & AV_CODEC_CAP_VARIABLE_FRAME_SIZE))
1142
99
            av_buffersink_set_frame_size(ost->filter->filter,
1143
99
                                         ost->enc_ctx->frame_size);
1144
    }
1145
1146
11625
    for (i = 0; i < fg->nb_inputs; i++) {
1147
5823
        while (av_fifo_size(fg->inputs[i]->frame_queue)) {
1148
            AVFrame *tmp;
1149
19
            av_fifo_generic_read(fg->inputs[i]->frame_queue, &tmp, sizeof(tmp), NULL);
1150
19
            ret = av_buffersrc_add_frame(fg->inputs[i]->filter, tmp);
1151
19
            av_frame_free(&tmp);
1152
19
            if (ret < 0)
1153
                goto fail;
1154
        }
1155
    }
1156
1157
    /* send the EOFs for the finished inputs */
1158
11625
    for (i = 0; i < fg->nb_inputs; i++) {
1159
5804
        if (fg->inputs[i]->eof) {
1160
1
            ret = av_buffersrc_add_frame(fg->inputs[i]->filter, NULL);
1161
1
            if (ret < 0)
1162
                goto fail;
1163
        }
1164
    }
1165
1166
    /* process queued up subtitle packets */
1167
11625
    for (i = 0; i < fg->nb_inputs; i++) {
1168
5804
        InputStream *ist = fg->inputs[i]->ist;
1169

5804
        if (ist->sub2video.sub_queue && ist->sub2video.frame) {
1170
            while (av_fifo_size(ist->sub2video.sub_queue)) {
1171
                AVSubtitle tmp;
1172
                av_fifo_generic_read(ist->sub2video.sub_queue, &tmp, sizeof(tmp), NULL);
1173
                sub2video_update(ist, INT64_MIN, &tmp);
1174
                avsubtitle_free(&tmp);
1175
            }
1176
        }
1177
    }
1178
1179
5821
    return 0;
1180
1181
4
fail:
1182
4
    cleanup_filtergraph(fg);
1183
4
    return ret;
1184
}
1185
1186
5799
int ifilter_parameters_from_frame(InputFilter *ifilter, const AVFrame *frame)
1187
{
1188
5799
    av_buffer_unref(&ifilter->hw_frames_ctx);
1189
1190
5799
    ifilter->format = frame->format;
1191
1192
5799
    ifilter->width               = frame->width;
1193
5799
    ifilter->height              = frame->height;
1194
5799
    ifilter->sample_aspect_ratio = frame->sample_aspect_ratio;
1195
1196
5799
    ifilter->sample_rate         = frame->sample_rate;
1197
5799
    ifilter->channels            = frame->channels;
1198
5799
    ifilter->channel_layout      = frame->channel_layout;
1199
1200
5799
    if (frame->hw_frames_ctx) {
1201
        ifilter->hw_frames_ctx = av_buffer_ref(frame->hw_frames_ctx);
1202
        if (!ifilter->hw_frames_ctx)
1203
            return AVERROR(ENOMEM);
1204
    }
1205
1206
5799
    return 0;
1207
}
1208
1209
int ist_in_filtergraph(FilterGraph *fg, InputStream *ist)
1210
{
1211
    int i;
1212
    for (i = 0; i < fg->nb_inputs; i++)
1213
        if (fg->inputs[i]->ist == ist)
1214
            return 1;
1215
    return 0;
1216
}
1217
1218
17381
int filtergraph_is_simple(FilterGraph *fg)
1219
{
1220
17381
    return !fg->graph_desc;
1221
}