GCC Code Coverage Report
Directory: ../../../ffmpeg/ Exec Total Coverage
File: src/fftools/ffmpeg_filter.c Lines: 455 608 74.8 %
Date: 2021-04-18 21:26:34 Branches: 285 450 63.3 %

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
// FIXME: YUV420P etc. are actually supported with full color range,
43
// yet the latter information isn't available here.
44
506
static const enum AVPixelFormat *get_compliance_normal_pix_fmts(const AVCodec *codec, const enum AVPixelFormat default_formats[])
45
{
46
    static const enum AVPixelFormat mjpeg_formats[] =
47
        { AV_PIX_FMT_YUVJ420P, AV_PIX_FMT_YUVJ422P, AV_PIX_FMT_YUVJ444P,
48
          AV_PIX_FMT_NONE };
49
50
506
    if (!strcmp(codec->name, "mjpeg")) {
51
26
        return mjpeg_formats;
52
    } else {
53
480
        return default_formats;
54
    }
55
}
56
57
3401
static enum AVPixelFormat choose_pixel_fmt(AVStream *st, AVCodecContext *enc_ctx,
58
                                    const AVCodec *codec, enum AVPixelFormat target)
59
{
60

3401
    if (codec && codec->pix_fmts) {
61
273
        const enum AVPixelFormat *p = codec->pix_fmts;
62
273
        const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(target);
63
        //FIXME: This should check for AV_PIX_FMT_FLAG_ALPHA after PAL8 pixel format without alpha is implemented
64

273
        int has_alpha = desc ? desc->nb_components % 2 == 0 : 0;
65
273
        enum AVPixelFormat best= AV_PIX_FMT_NONE;
66
67
273
        if (enc_ctx->strict_std_compliance > FF_COMPLIANCE_UNOFFICIAL) {
68
228
            p = get_compliance_normal_pix_fmts(codec, p);
69
        }
70
1371
        for (; *p != AV_PIX_FMT_NONE; p++) {
71
1362
            best = av_find_best_pix_fmt_of_2(best, *p, target, has_alpha, NULL);
72
1362
            if (*p == target)
73
264
                break;
74
        }
75
273
        if (*p == AV_PIX_FMT_NONE) {
76
9
            if (target != AV_PIX_FMT_NONE)
77
9
                av_log(NULL, AV_LOG_WARNING,
78
                       "Incompatible pixel format '%s' for codec '%s', auto-selecting format '%s'\n",
79
                       av_get_pix_fmt_name(target),
80
                       codec->name,
81
                       av_get_pix_fmt_name(best));
82
9
            return best;
83
        }
84
    }
85
3392
    return target;
86
}
87
88
4724
static char *choose_pix_fmts(OutputFilter *ofilter)
89
{
90
4724
    OutputStream *ost = ofilter->ost;
91
4724
    AVDictionaryEntry *strict_dict = av_dict_get(ost->encoder_opts, "strict", NULL, 0);
92
4724
    if (strict_dict)
93
        // used by choose_pixel_fmt() and below
94
64
        av_opt_set(ost->enc_ctx, "strict", strict_dict->value, 0);
95
96
4724
     if (ost->keep_pix_fmt) {
97
        avfilter_graph_set_auto_convert(ofilter->graph->graph,
98
                                            AVFILTER_AUTO_CONVERT_NONE);
99
        if (ost->enc_ctx->pix_fmt == AV_PIX_FMT_NONE)
100
            return NULL;
101
        return av_strdup(av_get_pix_fmt_name(ost->enc_ctx->pix_fmt));
102
    }
103
4724
    if (ost->enc_ctx->pix_fmt != AV_PIX_FMT_NONE) {
104
3401
        return av_strdup(av_get_pix_fmt_name(choose_pixel_fmt(ost->st, ost->enc_ctx, ost->enc, ost->enc_ctx->pix_fmt)));
105

1323
    } else if (ost->enc && ost->enc->pix_fmts) {
106
        const enum AVPixelFormat *p;
107
297
        AVIOContext *s = NULL;
108
        uint8_t *ret;
109
        int len;
110
111
297
        if (avio_open_dyn_buf(&s) < 0)
112
            exit_program(1);
113
114
297
        p = ost->enc->pix_fmts;
115
297
        if (ost->enc_ctx->strict_std_compliance > FF_COMPLIANCE_UNOFFICIAL) {
116
278
            p = get_compliance_normal_pix_fmts(ost->enc, p);
117
        }
118
119
1590
        for (; *p != AV_PIX_FMT_NONE; p++) {
120
1293
            const char *name = av_get_pix_fmt_name(*p);
121
1293
            avio_printf(s, "%s|", name);
122
        }
123
297
        len = avio_close_dyn_buf(s, &ret);
124
297
        ret[len - 1] = 0;
125
297
        return ret;
126
    } else
127
1026
        return NULL;
128
}
129
130
/* Define a function for appending a list of allowed formats
131
 * to an AVBPrint. If nonempty, the list will have a header. */
132
#define DEF_CHOOSE_FORMAT(name, type, var, supported_list, none, printf_format, get_name) \
133
static void choose_ ## name (OutputFilter *ofilter, AVBPrint *bprint)          \
134
{                                                                              \
135
    if (ofilter->var == none && !ofilter->supported_list)                      \
136
        return;                                                                \
137
    av_bprintf(bprint, #name "=");                                             \
138
    if (ofilter->var != none) {                                                \
139
        av_bprintf(bprint, printf_format, get_name(ofilter->var));             \
140
    } else {                                                                   \
141
        const type *p;                                                         \
142
                                                                               \
143
        for (p = ofilter->supported_list; *p != none; p++) {                   \
144
            av_bprintf(bprint, printf_format "|", get_name(*p));               \
145
        }                                                                      \
146
        if (bprint->len > 0)                                                   \
147
            bprint->str[--bprint->len] = '\0';                                 \
148
    }                                                                          \
149
    av_bprint_chars(bprint, ':', 1);                                           \
150
}
151
152
//DEF_CHOOSE_FORMAT(pix_fmts, enum AVPixelFormat, format, formats, AV_PIX_FMT_NONE,
153
//                  GET_PIX_FMT_NAME)
154
155


2294
DEF_CHOOSE_FORMAT(sample_fmts, enum AVSampleFormat, format, formats,
156
                  AV_SAMPLE_FMT_NONE, "%s", av_get_sample_fmt_name)
157
158


1399
DEF_CHOOSE_FORMAT(sample_rates, int, sample_rate, sample_rates, 0,
159
                  "%d", )
160
161


1367
DEF_CHOOSE_FORMAT(channel_layouts, uint64_t, channel_layout, channel_layouts, 0,
162
                  "0x%"PRIx64, )
163
164
5731
int init_simple_filtergraph(InputStream *ist, OutputStream *ost)
165
{
166
5731
    FilterGraph *fg = av_mallocz(sizeof(*fg));
167
168
5731
    if (!fg)
169
        exit_program(1);
170
5731
    fg->index = nb_filtergraphs;
171
172
5731
    GROW_ARRAY(fg->outputs, fg->nb_outputs);
173
5731
    if (!(fg->outputs[0] = av_mallocz(sizeof(*fg->outputs[0]))))
174
        exit_program(1);
175
5731
    fg->outputs[0]->ost   = ost;
176
5731
    fg->outputs[0]->graph = fg;
177
5731
    fg->outputs[0]->format = -1;
178
179
5731
    ost->filter = fg->outputs[0];
180
181
5731
    GROW_ARRAY(fg->inputs, fg->nb_inputs);
182
5731
    if (!(fg->inputs[0] = av_mallocz(sizeof(*fg->inputs[0]))))
183
        exit_program(1);
184
5731
    fg->inputs[0]->ist   = ist;
185
5731
    fg->inputs[0]->graph = fg;
186
5731
    fg->inputs[0]->format = -1;
187
188
5731
    fg->inputs[0]->frame_queue = av_fifo_alloc(8 * sizeof(AVFrame*));
189
5731
    if (!fg->inputs[0]->frame_queue)
190
        exit_program(1);
191
192
5731
    GROW_ARRAY(ist->filters, ist->nb_filters);
193
5731
    ist->filters[ist->nb_filters - 1] = fg->inputs[0];
194
195
5731
    GROW_ARRAY(filtergraphs, nb_filtergraphs);
196
5731
    filtergraphs[nb_filtergraphs - 1] = fg;
197
198
5731
    return 0;
199
}
200
201
143
static char *describe_filter_link(FilterGraph *fg, AVFilterInOut *inout, int in)
202
{
203
143
    AVFilterContext *ctx = inout->filter_ctx;
204
143
    AVFilterPad *pads = in ? ctx->input_pads  : ctx->output_pads;
205
143
    int       nb_pads = in ? ctx->nb_inputs   : ctx->nb_outputs;
206
    AVIOContext *pb;
207
143
    uint8_t *res = NULL;
208
209
143
    if (avio_open_dyn_buf(&pb) < 0)
210
        exit_program(1);
211
212
143
    avio_printf(pb, "%s", ctx->filter->name);
213
143
    if (nb_pads > 1)
214
45
        avio_printf(pb, ":%s", avfilter_pad_get_name(pads, inout->pad_idx));
215
143
    avio_w8(pb, 0);
216
143
    avio_close_dyn_buf(pb, &res);
217
143
    return res;
218
}
219
220
60
static void init_input_filter(FilterGraph *fg, AVFilterInOut *in)
221
{
222
60
    InputStream *ist = NULL;
223
60
    enum AVMediaType type = avfilter_pad_get_type(in->filter_ctx->input_pads, in->pad_idx);
224
    int i;
225
226
    // TODO: support other filter types
227

60
    if (type != AVMEDIA_TYPE_VIDEO && type != AVMEDIA_TYPE_AUDIO) {
228
        av_log(NULL, AV_LOG_FATAL, "Only video and audio filters supported "
229
               "currently.\n");
230
        exit_program(1);
231
    }
232
233
60
    if (in->name) {
234
        AVFormatContext *s;
235
12
        AVStream       *st = NULL;
236
        char *p;
237
12
        int file_idx = strtol(in->name, &p, 0);
238
239

12
        if (file_idx < 0 || file_idx >= nb_input_files) {
240
            av_log(NULL, AV_LOG_FATAL, "Invalid file index %d in filtergraph description %s.\n",
241
                   file_idx, fg->graph_desc);
242
            exit_program(1);
243
        }
244
12
        s = input_files[file_idx]->ctx;
245
246
16
        for (i = 0; i < s->nb_streams; i++) {
247
16
            enum AVMediaType stream_type = s->streams[i]->codecpar->codec_type;
248

16
            if (stream_type != type &&
249
5
                !(stream_type == AVMEDIA_TYPE_SUBTITLE &&
250
                  type == AVMEDIA_TYPE_VIDEO /* sub2video hack */))
251
2
                continue;
252

14
            if (check_stream_specifier(s, s->streams[i], *p == ':' ? p + 1 : p) == 1) {
253
12
                st = s->streams[i];
254
12
                break;
255
            }
256
        }
257
12
        if (!st) {
258
            av_log(NULL, AV_LOG_FATAL, "Stream specifier '%s' in filtergraph description %s "
259
                   "matches no streams.\n", p, fg->graph_desc);
260
            exit_program(1);
261
        }
262
12
        ist = input_streams[input_files[file_idx]->ist_index + st->index];
263
12
        if (ist->user_set_discard == AVDISCARD_ALL) {
264
            av_log(NULL, AV_LOG_FATAL, "Stream specifier '%s' in filtergraph description %s "
265
                   "matches a disabled input stream.\n", p, fg->graph_desc);
266
            exit_program(1);
267
        }
268
    } else {
269
        /* find the first unused stream of corresponding type */
270
66
        for (i = 0; i < nb_input_streams; i++) {
271
66
            ist = input_streams[i];
272
66
            if (ist->user_set_discard == AVDISCARD_ALL)
273
                continue;
274

66
            if (ist->dec_ctx->codec_type == type && ist->discard)
275
48
                break;
276
        }
277
48
        if (i == nb_input_streams) {
278
            av_log(NULL, AV_LOG_FATAL, "Cannot find a matching stream for "
279
                   "unlabeled input pad %d on filter %s\n", in->pad_idx,
280
                   in->filter_ctx->name);
281
            exit_program(1);
282
        }
283
    }
284
60
    av_assert0(ist);
285
286
60
    ist->discard         = 0;
287
60
    ist->decoding_needed |= DECODING_FOR_FILTER;
288
60
    ist->st->discard = AVDISCARD_NONE;
289
290
60
    GROW_ARRAY(fg->inputs, fg->nb_inputs);
291
60
    if (!(fg->inputs[fg->nb_inputs - 1] = av_mallocz(sizeof(*fg->inputs[0]))))
292
        exit_program(1);
293
60
    fg->inputs[fg->nb_inputs - 1]->ist   = ist;
294
60
    fg->inputs[fg->nb_inputs - 1]->graph = fg;
295
60
    fg->inputs[fg->nb_inputs - 1]->format = -1;
296
60
    fg->inputs[fg->nb_inputs - 1]->type = ist->st->codecpar->codec_type;
297
60
    fg->inputs[fg->nb_inputs - 1]->name = describe_filter_link(fg, in, 1);
298
299
60
    fg->inputs[fg->nb_inputs - 1]->frame_queue = av_fifo_alloc(8 * sizeof(AVFrame*));
300
60
    if (!fg->inputs[fg->nb_inputs - 1]->frame_queue)
301
        exit_program(1);
302
303
60
    GROW_ARRAY(ist->filters, ist->nb_filters);
304
60
    ist->filters[ist->nb_filters - 1] = fg->inputs[fg->nb_inputs - 1];
305
60
}
306
307
80
int init_complex_filtergraph(FilterGraph *fg)
308
{
309
    AVFilterInOut *inputs, *outputs, *cur;
310
    AVFilterGraph *graph;
311
80
    int ret = 0;
312
313
    /* this graph is only used for determining the kinds of inputs
314
     * and outputs we have, and is discarded on exit from this function */
315
80
    graph = avfilter_graph_alloc();
316
80
    if (!graph)
317
        return AVERROR(ENOMEM);
318
80
    graph->nb_threads = 1;
319
320
80
    ret = avfilter_graph_parse2(graph, fg->graph_desc, &inputs, &outputs);
321
80
    if (ret < 0)
322
        goto fail;
323
324
140
    for (cur = inputs; cur; cur = cur->next)
325
60
        init_input_filter(fg, cur);
326
327
163
    for (cur = outputs; cur;) {
328
83
        GROW_ARRAY(fg->outputs, fg->nb_outputs);
329
83
        fg->outputs[fg->nb_outputs - 1] = av_mallocz(sizeof(*fg->outputs[0]));
330
83
        if (!fg->outputs[fg->nb_outputs - 1])
331
            exit_program(1);
332
333
83
        fg->outputs[fg->nb_outputs - 1]->graph   = fg;
334
83
        fg->outputs[fg->nb_outputs - 1]->out_tmp = cur;
335
83
        fg->outputs[fg->nb_outputs - 1]->type    = avfilter_pad_get_type(cur->filter_ctx->output_pads,
336
                                                                         cur->pad_idx);
337
83
        fg->outputs[fg->nb_outputs - 1]->name = describe_filter_link(fg, cur, 0);
338
83
        cur = cur->next;
339
83
        fg->outputs[fg->nb_outputs - 1]->out_tmp->next = NULL;
340
    }
341
342
80
fail:
343
80
    avfilter_inout_free(&inputs);
344
80
    avfilter_graph_free(&graph);
345
80
    return ret;
346
}
347
348
11681
static int insert_trim(int64_t start_time, int64_t duration,
349
                       AVFilterContext **last_filter, int *pad_idx,
350
                       const char *filter_name)
351
{
352
11681
    AVFilterGraph *graph = (*last_filter)->graph;
353
    AVFilterContext *ctx;
354
    const AVFilter *trim;
355
11681
    enum AVMediaType type = avfilter_pad_get_type((*last_filter)->output_pads, *pad_idx);
356
11681
    const char *name = (type == AVMEDIA_TYPE_VIDEO) ? "trim" : "atrim";
357
11681
    int ret = 0;
358
359

11681
    if (duration == INT64_MAX && start_time == AV_NOPTS_VALUE)
360
11507
        return 0;
361
362
174
    trim = avfilter_get_by_name(name);
363
174
    if (!trim) {
364
        av_log(NULL, AV_LOG_ERROR, "%s filter not present, cannot limit "
365
               "recording time.\n", name);
366
        return AVERROR_FILTER_NOT_FOUND;
367
    }
368
369
174
    ctx = avfilter_graph_alloc_filter(graph, trim, filter_name);
370
174
    if (!ctx)
371
        return AVERROR(ENOMEM);
372
373
174
    if (duration != INT64_MAX) {
374
157
        ret = av_opt_set_int(ctx, "durationi", duration,
375
                                AV_OPT_SEARCH_CHILDREN);
376
    }
377

174
    if (ret >= 0 && start_time != AV_NOPTS_VALUE) {
378
17
        ret = av_opt_set_int(ctx, "starti", start_time,
379
                                AV_OPT_SEARCH_CHILDREN);
380
    }
381
174
    if (ret < 0) {
382
        av_log(ctx, AV_LOG_ERROR, "Error configuring the %s filter", name);
383
        return ret;
384
    }
385
386
174
    ret = avfilter_init_str(ctx, NULL);
387
174
    if (ret < 0)
388
        return ret;
389
390
174
    ret = avfilter_link(*last_filter, *pad_idx, ctx, 0);
391
174
    if (ret < 0)
392
        return ret;
393
394
174
    *last_filter = ctx;
395
174
    *pad_idx     = 0;
396
174
    return 0;
397
}
398
399
static int insert_filter(AVFilterContext **last_filter, int *pad_idx,
400
                         const char *filter_name, const char *args)
401
{
402
    AVFilterGraph *graph = (*last_filter)->graph;
403
    AVFilterContext *ctx;
404
    int ret;
405
406
    ret = avfilter_graph_create_filter(&ctx,
407
                                       avfilter_get_by_name(filter_name),
408
                                       filter_name, args, NULL, graph);
409
    if (ret < 0)
410
        return ret;
411
412
    ret = avfilter_link(*last_filter, *pad_idx, ctx, 0);
413
    if (ret < 0)
414
        return ret;
415
416
    *last_filter = ctx;
417
    *pad_idx     = 0;
418
    return 0;
419
}
420
421
4724
static int configure_output_video_filter(FilterGraph *fg, OutputFilter *ofilter, AVFilterInOut *out)
422
{
423
    char *pix_fmts;
424
4724
    OutputStream *ost = ofilter->ost;
425
4724
    OutputFile    *of = output_files[ost->file_index];
426
4724
    AVFilterContext *last_filter = out->filter_ctx;
427
4724
    int pad_idx = out->pad_idx;
428
    int ret;
429
    char name[255];
430
431
4724
    snprintf(name, sizeof(name), "out_%d_%d", ost->file_index, ost->index);
432
4724
    ret = avfilter_graph_create_filter(&ofilter->filter,
433
                                       avfilter_get_by_name("buffersink"),
434
                                       name, NULL, NULL, fg->graph);
435
436
4724
    if (ret < 0)
437
        return ret;
438
439

4724
    if ((ofilter->width || ofilter->height) && ofilter->ost->autoscale) {
440
        char args[255];
441
        AVFilterContext *filter;
442
645
        AVDictionaryEntry *e = NULL;
443
444
645
        snprintf(args, sizeof(args), "%d:%d",
445
                 ofilter->width, ofilter->height);
446
447
1924
        while ((e = av_dict_get(ost->sws_dict, "", e,
448
                                AV_DICT_IGNORE_SUFFIX))) {
449
1279
            av_strlcatf(args, sizeof(args), ":%s=%s", e->key, e->value);
450
        }
451
452
645
        snprintf(name, sizeof(name), "scaler_out_%d_%d",
453
                 ost->file_index, ost->index);
454
645
        if ((ret = avfilter_graph_create_filter(&filter, avfilter_get_by_name("scale"),
455
                                                name, args, NULL, fg->graph)) < 0)
456
            return ret;
457
645
        if ((ret = avfilter_link(last_filter, pad_idx, filter, 0)) < 0)
458
            return ret;
459
460
645
        last_filter = filter;
461
645
        pad_idx = 0;
462
    }
463
464
4724
    if ((pix_fmts = choose_pix_fmts(ofilter))) {
465
        AVFilterContext *filter;
466
467
3698
        ret = avfilter_graph_create_filter(&filter,
468
                                           avfilter_get_by_name("format"),
469
                                           "format", pix_fmts, NULL, fg->graph);
470
3698
        av_freep(&pix_fmts);
471
3698
        if (ret < 0)
472
            return ret;
473
3698
        if ((ret = avfilter_link(last_filter, pad_idx, filter, 0)) < 0)
474
            return ret;
475
476
3698
        last_filter = filter;
477
3698
        pad_idx     = 0;
478
    }
479
480
    if (ost->frame_rate.num && 0) {
481
        AVFilterContext *fps;
482
        char args[255];
483
484
        snprintf(args, sizeof(args), "fps=%d/%d", ost->frame_rate.num,
485
                 ost->frame_rate.den);
486
        snprintf(name, sizeof(name), "fps_out_%d_%d",
487
                 ost->file_index, ost->index);
488
        ret = avfilter_graph_create_filter(&fps, avfilter_get_by_name("fps"),
489
                                           name, args, NULL, fg->graph);
490
        if (ret < 0)
491
            return ret;
492
493
        ret = avfilter_link(last_filter, pad_idx, fps, 0);
494
        if (ret < 0)
495
            return ret;
496
        last_filter = fps;
497
        pad_idx = 0;
498
    }
499
500
4724
    snprintf(name, sizeof(name), "trim_out_%d_%d",
501
             ost->file_index, ost->index);
502
4724
    ret = insert_trim(of->start_time, of->recording_time,
503
                      &last_filter, &pad_idx, name);
504
4724
    if (ret < 0)
505
        return ret;
506
507
508
4724
    if ((ret = avfilter_link(last_filter, pad_idx, ofilter->filter, 0)) < 0)
509
        return ret;
510
511
4724
    return 0;
512
}
513
514
1129
static int configure_output_audio_filter(FilterGraph *fg, OutputFilter *ofilter, AVFilterInOut *out)
515
{
516
1129
    OutputStream *ost = ofilter->ost;
517
1129
    OutputFile    *of = output_files[ost->file_index];
518
1129
    AVCodecContext *codec  = ost->enc_ctx;
519
1129
    AVFilterContext *last_filter = out->filter_ctx;
520
1129
    int pad_idx = out->pad_idx;
521
    AVBPrint args;
522
    char name[255];
523
    int ret;
524
525
1129
    snprintf(name, sizeof(name), "out_%d_%d", ost->file_index, ost->index);
526
1129
    ret = avfilter_graph_create_filter(&ofilter->filter,
527
                                       avfilter_get_by_name("abuffersink"),
528
                                       name, NULL, NULL, fg->graph);
529
1129
    if (ret < 0)
530
        return ret;
531
1129
    if ((ret = av_opt_set_int(ofilter->filter, "all_channel_counts", 1, AV_OPT_SEARCH_CHILDREN)) < 0)
532
        return ret;
533
534
#define AUTO_INSERT_FILTER(opt_name, filter_name, arg) do {                 \
535
    AVFilterContext *filt_ctx;                                              \
536
                                                                            \
537
    av_log(NULL, AV_LOG_INFO, opt_name " is forwarded to lavfi "            \
538
           "similarly to -af " filter_name "=%s.\n", arg);                  \
539
                                                                            \
540
    ret = avfilter_graph_create_filter(&filt_ctx,                           \
541
                                       avfilter_get_by_name(filter_name),   \
542
                                       filter_name, arg, NULL, fg->graph);  \
543
    if (ret < 0)                                                            \
544
        goto fail;                                                          \
545
                                                                            \
546
    ret = avfilter_link(last_filter, pad_idx, filt_ctx, 0);                 \
547
    if (ret < 0)                                                            \
548
        goto fail;                                                          \
549
                                                                            \
550
    last_filter = filt_ctx;                                                 \
551
    pad_idx = 0;                                                            \
552
} while (0)
553
1129
    av_bprint_init(&args, 0, AV_BPRINT_SIZE_UNLIMITED);
554
1129
    if (ost->audio_channels_mapped) {
555
        int i;
556
6
        av_bprintf(&args, "0x%"PRIx64,
557
                   av_get_default_channel_layout(ost->audio_channels_mapped));
558
16
        for (i = 0; i < ost->audio_channels_mapped; i++)
559
10
            if (ost->audio_channels_map[i] != -1)
560
9
                av_bprintf(&args, "|c%d=c%d", i, ost->audio_channels_map[i]);
561
562

6
        AUTO_INSERT_FILTER("-map_channel", "pan", args.str);
563
6
        av_bprint_clear(&args);
564
    }
565
566

1129
    if (codec->channels && !codec->channel_layout)
567
12
        codec->channel_layout = av_get_default_channel_layout(codec->channels);
568
569
1129
    choose_sample_fmts(ofilter,     &args);
570
1129
    choose_sample_rates(ofilter,    &args);
571
1129
    choose_channel_layouts(ofilter, &args);
572
1129
    if (!av_bprint_is_complete(&args)) {
573
        ret = AVERROR(ENOMEM);
574
        goto fail;
575
    }
576
1129
    if (args.len) {
577
        AVFilterContext *format;
578
579
1129
        snprintf(name, sizeof(name), "format_out_%d_%d",
580
                 ost->file_index, ost->index);
581
1129
        ret = avfilter_graph_create_filter(&format,
582
                                           avfilter_get_by_name("aformat"),
583
1129
                                           name, args.str, NULL, fg->graph);
584
1129
        if (ret < 0)
585
            goto fail;
586
587
1129
        ret = avfilter_link(last_filter, pad_idx, format, 0);
588
1129
        if (ret < 0)
589
            goto fail;
590
591
1129
        last_filter = format;
592
1129
        pad_idx = 0;
593
    }
594
595

1129
    if (ost->apad && of->shortest) {
596
        int i;
597
598
        for (i=0; i<of->ctx->nb_streams; i++)
599
            if (of->ctx->streams[i]->codecpar->codec_type == AVMEDIA_TYPE_VIDEO)
600
                break;
601
602
        if (i<of->ctx->nb_streams) {
603
            AUTO_INSERT_FILTER("-apad", "apad", ost->apad);
604
        }
605
    }
606
607
1129
    snprintf(name, sizeof(name), "trim for output stream %d:%d",
608
             ost->file_index, ost->index);
609
1129
    ret = insert_trim(of->start_time, of->recording_time,
610
                      &last_filter, &pad_idx, name);
611
1129
    if (ret < 0)
612
        goto fail;
613
614
1129
    if ((ret = avfilter_link(last_filter, pad_idx, ofilter->filter, 0)) < 0)
615
        goto fail;
616
1129
fail:
617
1129
    av_bprint_finalize(&args, NULL);
618
619
1129
    return ret;
620
}
621
622
5853
static int configure_output_filter(FilterGraph *fg, OutputFilter *ofilter,
623
                                   AVFilterInOut *out)
624
{
625
5853
    if (!ofilter->ost) {
626
        av_log(NULL, AV_LOG_FATAL, "Filter %s has an unconnected output\n", ofilter->name);
627
        exit_program(1);
628
    }
629
630
5853
    switch (avfilter_pad_get_type(out->filter_ctx->output_pads, out->pad_idx)) {
631
4724
    case AVMEDIA_TYPE_VIDEO: return configure_output_video_filter(fg, ofilter, out);
632
1129
    case AVMEDIA_TYPE_AUDIO: return configure_output_audio_filter(fg, ofilter, out);
633
    default: av_assert0(0);
634
    }
635
}
636
637
6010
void check_filter_outputs(void)
638
{
639
    int i;
640
11821
    for (i = 0; i < nb_filtergraphs; i++) {
641
        int n;
642
11625
        for (n = 0; n < filtergraphs[i]->nb_outputs; n++) {
643
5814
            OutputFilter *output = filtergraphs[i]->outputs[n];
644
5814
            if (!output->ost) {
645
                av_log(NULL, AV_LOG_FATAL, "Filter %s has an unconnected output\n", output->name);
646
                exit_program(1);
647
            }
648
        }
649
    }
650
6010
}
651
652
4
static int sub2video_prepare(InputStream *ist, InputFilter *ifilter)
653
{
654
4
    AVFormatContext *avf = input_files[ist->file_index]->ctx;
655
    int i, w, h;
656
657
    /* Compute the size of the canvas for the subtitles stream.
658
       If the subtitles codecpar has set a size, use it. Otherwise use the
659
       maximum dimensions of the video streams in the same file. */
660
4
    w = ifilter->width;
661
4
    h = ifilter->height;
662

4
    if (!(w && h)) {
663
12
        for (i = 0; i < avf->nb_streams; i++) {
664
8
            if (avf->streams[i]->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) {
665
1
                w = FFMAX(w, avf->streams[i]->codecpar->width);
666
1
                h = FFMAX(h, avf->streams[i]->codecpar->height);
667
            }
668
        }
669

4
        if (!(w && h)) {
670
3
            w = FFMAX(w, 720);
671
3
            h = FFMAX(h, 576);
672
        }
673
4
        av_log(avf, AV_LOG_INFO, "sub2video: using %dx%d canvas\n", w, h);
674
    }
675
4
    ist->sub2video.w = ifilter->width  = w;
676
4
    ist->sub2video.h = ifilter->height = h;
677
678
4
    ifilter->width  = ist->dec_ctx->width  ? ist->dec_ctx->width  : ist->sub2video.w;
679
4
    ifilter->height = ist->dec_ctx->height ? ist->dec_ctx->height : ist->sub2video.h;
680
681
    /* rectangles are AV_PIX_FMT_PAL8, but we have no guarantee that the
682
       palettes for all rectangles are identical or compatible */
683
4
    ifilter->format = AV_PIX_FMT_RGB32;
684
685
4
    ist->sub2video.frame = av_frame_alloc();
686
4
    if (!ist->sub2video.frame)
687
        return AVERROR(ENOMEM);
688
4
    ist->sub2video.last_pts = INT64_MIN;
689
4
    ist->sub2video.end_pts  = INT64_MIN;
690
691
    /* sub2video structure has been (re-)initialized.
692
       Mark it as such so that the system will be
693
       initialized with the first received heartbeat. */
694
4
    ist->sub2video.initialize = 1;
695
696
4
    return 0;
697
}
698
699
4696
static int configure_input_video_filter(FilterGraph *fg, InputFilter *ifilter,
700
                                        AVFilterInOut *in)
701
{
702
    AVFilterContext *last_filter;
703
4696
    const AVFilter *buffer_filt = avfilter_get_by_name("buffer");
704
4696
    InputStream *ist = ifilter->ist;
705
4696
    InputFile     *f = input_files[ist->file_index];
706
4696
    AVRational tb = ist->framerate.num ? av_inv_q(ist->framerate) :
707
4673
                                         ist->st->time_base;
708
4696
    AVRational fr = ist->framerate;
709
    AVRational sar;
710
    AVBPrint args;
711
    char name[255];
712
4696
    int ret, pad_idx = 0;
713
4696
    int64_t tsoffset = 0;
714
4696
    AVBufferSrcParameters *par = av_buffersrc_parameters_alloc();
715
716
4696
    if (!par)
717
        return AVERROR(ENOMEM);
718
4696
    memset(par, 0, sizeof(*par));
719
4696
    par->format = AV_PIX_FMT_NONE;
720
721
4696
    if (ist->dec_ctx->codec_type == AVMEDIA_TYPE_AUDIO) {
722
        av_log(NULL, AV_LOG_ERROR, "Cannot connect video filter to audio input\n");
723
        ret = AVERROR(EINVAL);
724
        goto fail;
725
    }
726
727
4696
    if (!fr.num)
728
4673
        fr = av_guess_frame_rate(input_files[ist->file_index]->ctx, ist->st, NULL);
729
730
4696
    if (ist->dec_ctx->codec_type == AVMEDIA_TYPE_SUBTITLE) {
731
4
        ret = sub2video_prepare(ist, ifilter);
732
4
        if (ret < 0)
733
            goto fail;
734
    }
735
736
4696
    sar = ifilter->sample_aspect_ratio;
737
4696
    if(!sar.den)
738
4
        sar = (AVRational){0,1};
739
4696
    av_bprint_init(&args, 0, AV_BPRINT_SIZE_AUTOMATIC);
740
4696
    av_bprintf(&args,
741
             "video_size=%dx%d:pix_fmt=%d:time_base=%d/%d:"
742
             "pixel_aspect=%d/%d",
743
             ifilter->width, ifilter->height, ifilter->format,
744
             tb.num, tb.den, sar.num, sar.den);
745

4696
    if (fr.num && fr.den)
746
4692
        av_bprintf(&args, ":frame_rate=%d/%d", fr.num, fr.den);
747
4696
    snprintf(name, sizeof(name), "graph %d input from stream %d:%d", fg->index,
748
4696
             ist->file_index, ist->st->index);
749
750
751
4696
    if ((ret = avfilter_graph_create_filter(&ifilter->filter, buffer_filt, name,
752
4696
                                            args.str, NULL, fg->graph)) < 0)
753
        goto fail;
754
4696
    par->hw_frames_ctx = ifilter->hw_frames_ctx;
755
4696
    ret = av_buffersrc_parameters_set(ifilter->filter, par);
756
4696
    if (ret < 0)
757
        goto fail;
758
4696
    av_freep(&par);
759
4696
    last_filter = ifilter->filter;
760
761
4696
    if (ist->autorotate) {
762
4696
        double theta = get_rotation(ist->st);
763
764
4696
        if (fabs(theta - 90) < 1.0) {
765
            ret = insert_filter(&last_filter, &pad_idx, "transpose", "clock");
766
4696
        } else if (fabs(theta - 180) < 1.0) {
767
            ret = insert_filter(&last_filter, &pad_idx, "hflip", NULL);
768
            if (ret < 0)
769
                return ret;
770
            ret = insert_filter(&last_filter, &pad_idx, "vflip", NULL);
771
4696
        } else if (fabs(theta - 270) < 1.0) {
772
            ret = insert_filter(&last_filter, &pad_idx, "transpose", "cclock");
773
4696
        } else if (fabs(theta) > 1.0) {
774
            char rotate_buf[64];
775
            snprintf(rotate_buf, sizeof(rotate_buf), "%f*PI/180", theta);
776
            ret = insert_filter(&last_filter, &pad_idx, "rotate", rotate_buf);
777
        }
778
4696
        if (ret < 0)
779
            return ret;
780
    }
781
782
4696
    if (do_deinterlace) {
783
        AVFilterContext *yadif;
784
785
        snprintf(name, sizeof(name), "deinterlace_in_%d_%d",
786
                 ist->file_index, ist->st->index);
787
        if ((ret = avfilter_graph_create_filter(&yadif,
788
                                                avfilter_get_by_name("yadif"),
789
                                                name, "", NULL,
790
                                                fg->graph)) < 0)
791
            return ret;
792
793
        if ((ret = avfilter_link(last_filter, 0, yadif, 0)) < 0)
794
            return ret;
795
796
        last_filter = yadif;
797
    }
798
799
4696
    snprintf(name, sizeof(name), "trim_in_%d_%d",
800
4696
             ist->file_index, ist->st->index);
801
4696
    if (copy_ts) {
802
2
        tsoffset = f->start_time == AV_NOPTS_VALUE ? 0 : f->start_time;
803

2
        if (!start_at_zero && f->ctx->start_time != AV_NOPTS_VALUE)
804
1
            tsoffset += f->ctx->start_time;
805
    }
806

4696
    ret = insert_trim(((f->start_time == AV_NOPTS_VALUE) || !f->accurate_seek) ?
807
                      AV_NOPTS_VALUE : tsoffset, f->recording_time,
808
                      &last_filter, &pad_idx, name);
809
4696
    if (ret < 0)
810
        return ret;
811
812
4696
    if ((ret = avfilter_link(last_filter, 0, in->filter_ctx, in->pad_idx)) < 0)
813
        return ret;
814
4696
    return 0;
815
fail:
816
    av_freep(&par);
817
818
    return ret;
819
}
820
821
1132
static int configure_input_audio_filter(FilterGraph *fg, InputFilter *ifilter,
822
                                        AVFilterInOut *in)
823
{
824
    AVFilterContext *last_filter;
825
1132
    const AVFilter *abuffer_filt = avfilter_get_by_name("abuffer");
826
1132
    InputStream *ist = ifilter->ist;
827
1132
    InputFile     *f = input_files[ist->file_index];
828
    AVBPrint args;
829
    char name[255];
830
1132
    int ret, pad_idx = 0;
831
1132
    int64_t tsoffset = 0;
832
833
1132
    if (ist->dec_ctx->codec_type != AVMEDIA_TYPE_AUDIO) {
834
        av_log(NULL, AV_LOG_ERROR, "Cannot connect audio filter to non audio input\n");
835
        return AVERROR(EINVAL);
836
    }
837
838
1132
    av_bprint_init(&args, 0, AV_BPRINT_SIZE_AUTOMATIC);
839
1132
    av_bprintf(&args, "time_base=%d/%d:sample_rate=%d:sample_fmt=%s",
840
             1, ifilter->sample_rate,
841
             ifilter->sample_rate,
842
1132
             av_get_sample_fmt_name(ifilter->format));
843
1132
    if (ifilter->channel_layout)
844
1126
        av_bprintf(&args, ":channel_layout=0x%"PRIx64,
845
                   ifilter->channel_layout);
846
    else
847
6
        av_bprintf(&args, ":channels=%d", ifilter->channels);
848
1132
    snprintf(name, sizeof(name), "graph_%d_in_%d_%d", fg->index,
849
1132
             ist->file_index, ist->st->index);
850
851
1132
    if ((ret = avfilter_graph_create_filter(&ifilter->filter, abuffer_filt,
852
1132
                                            name, args.str, NULL,
853
                                            fg->graph)) < 0)
854
        return ret;
855
1132
    last_filter = ifilter->filter;
856
857
#define AUTO_INSERT_FILTER_INPUT(opt_name, filter_name, arg) do {                 \
858
    AVFilterContext *filt_ctx;                                              \
859
                                                                            \
860
    av_log(NULL, AV_LOG_INFO, opt_name " is forwarded to lavfi "            \
861
           "similarly to -af " filter_name "=%s.\n", arg);                  \
862
                                                                            \
863
    snprintf(name, sizeof(name), "graph_%d_%s_in_%d_%d",      \
864
                fg->index, filter_name, ist->file_index, ist->st->index);   \
865
    ret = avfilter_graph_create_filter(&filt_ctx,                           \
866
                                       avfilter_get_by_name(filter_name),   \
867
                                       name, arg, NULL, fg->graph);         \
868
    if (ret < 0)                                                            \
869
        return ret;                                                         \
870
                                                                            \
871
    ret = avfilter_link(last_filter, 0, filt_ctx, 0);                       \
872
    if (ret < 0)                                                            \
873
        return ret;                                                         \
874
                                                                            \
875
    last_filter = filt_ctx;                                                 \
876
} while (0)
877
878
1132
    if (audio_sync_method > 0) {
879
        char args[256] = {0};
880
881
        av_strlcatf(args, sizeof(args), "async=%d", audio_sync_method);
882
        if (audio_drift_threshold != 0.1)
883
            av_strlcatf(args, sizeof(args), ":min_hard_comp=%f", audio_drift_threshold);
884
        if (!fg->reconfiguration)
885
            av_strlcatf(args, sizeof(args), ":first_pts=0");
886
        AUTO_INSERT_FILTER_INPUT("-async", "aresample", args);
887
    }
888
889
//     if (ost->audio_channels_mapped) {
890
//         int i;
891
//         AVBPrint pan_buf;
892
//         av_bprint_init(&pan_buf, 256, 8192);
893
//         av_bprintf(&pan_buf, "0x%"PRIx64,
894
//                    av_get_default_channel_layout(ost->audio_channels_mapped));
895
//         for (i = 0; i < ost->audio_channels_mapped; i++)
896
//             if (ost->audio_channels_map[i] != -1)
897
//                 av_bprintf(&pan_buf, ":c%d=c%d", i, ost->audio_channels_map[i]);
898
//         AUTO_INSERT_FILTER_INPUT("-map_channel", "pan", pan_buf.str);
899
//         av_bprint_finalize(&pan_buf, NULL);
900
//     }
901
902
1132
    if (audio_volume != 256) {
903
        char args[256];
904
905
        av_log(NULL, AV_LOG_WARNING, "-vol has been deprecated. Use the volume "
906
               "audio filter instead.\n");
907
908
        snprintf(args, sizeof(args), "%f", audio_volume / 256.);
909
        AUTO_INSERT_FILTER_INPUT("-vol", "volume", args);
910
    }
911
912
1132
    snprintf(name, sizeof(name), "trim for input stream %d:%d",
913
1132
             ist->file_index, ist->st->index);
914
1132
    if (copy_ts) {
915
        tsoffset = f->start_time == AV_NOPTS_VALUE ? 0 : f->start_time;
916
        if (!start_at_zero && f->ctx->start_time != AV_NOPTS_VALUE)
917
            tsoffset += f->ctx->start_time;
918
    }
919

1132
    ret = insert_trim(((f->start_time == AV_NOPTS_VALUE) || !f->accurate_seek) ?
920
                      AV_NOPTS_VALUE : tsoffset, f->recording_time,
921
                      &last_filter, &pad_idx, name);
922
1132
    if (ret < 0)
923
        return ret;
924
925
1132
    if ((ret = avfilter_link(last_filter, 0, in->filter_ctx, in->pad_idx)) < 0)
926
        return ret;
927
928
1132
    return 0;
929
}
930
931
5828
static int configure_input_filter(FilterGraph *fg, InputFilter *ifilter,
932
                                  AVFilterInOut *in)
933
{
934
5828
    if (!ifilter->ist->dec) {
935
        av_log(NULL, AV_LOG_ERROR,
936
               "No decoder for stream #%d:%d, filtering impossible\n",
937
               ifilter->ist->file_index, ifilter->ist->st->index);
938
        return AVERROR_DECODER_NOT_FOUND;
939
    }
940
5828
    switch (avfilter_pad_get_type(in->filter_ctx->input_pads, in->pad_idx)) {
941
4696
    case AVMEDIA_TYPE_VIDEO: return configure_input_video_filter(fg, ifilter, in);
942
1132
    case AVMEDIA_TYPE_AUDIO: return configure_input_audio_filter(fg, ifilter, in);
943
    default: av_assert0(0);
944
    }
945
}
946
947
5854
static void cleanup_filtergraph(FilterGraph *fg)
948
{
949
    int i;
950
11711
    for (i = 0; i < fg->nb_outputs; i++)
951
5857
        fg->outputs[i]->filter = (AVFilterContext *)NULL;
952
11682
    for (i = 0; i < fg->nb_inputs; i++)
953
5828
        fg->inputs[i]->filter = (AVFilterContext *)NULL;
954
5854
    avfilter_graph_free(&fg->graph);
955
5854
}
956
957
5850
int configure_filtergraph(FilterGraph *fg)
958
{
959
    AVFilterInOut *inputs, *outputs, *cur;
960
5850
    int ret, i, simple = filtergraph_is_simple(fg);
961
5850
    const char *graph_desc = simple ? fg->outputs[0]->ost->avfilter :
962
                                      fg->graph_desc;
963
964
5850
    cleanup_filtergraph(fg);
965
5850
    if (!(fg->graph = avfilter_graph_alloc()))
966
        return AVERROR(ENOMEM);
967
968
5850
    if (simple) {
969
5768
        OutputStream *ost = fg->outputs[0]->ost;
970
        char args[512];
971
5768
        AVDictionaryEntry *e = NULL;
972
973
5768
        fg->graph->nb_threads = filter_nbthreads;
974
975
5768
        args[0] = 0;
976
15012
        while ((e = av_dict_get(ost->sws_dict, "", e,
977
                                AV_DICT_IGNORE_SUFFIX))) {
978
9244
            av_strlcatf(args, sizeof(args), "%s=%s:", e->key, e->value);
979
        }
980
5768
        if (strlen(args))
981
5768
            args[strlen(args)-1] = 0;
982
5768
        fg->graph->scale_sws_opts = av_strdup(args);
983
984
5768
        args[0] = 0;
985
5820
        while ((e = av_dict_get(ost->swr_opts, "", e,
986
                                AV_DICT_IGNORE_SUFFIX))) {
987
52
            av_strlcatf(args, sizeof(args), "%s=%s:", e->key, e->value);
988
        }
989
5768
        if (strlen(args))
990
52
            args[strlen(args)-1] = 0;
991
5768
        av_opt_set(fg->graph, "aresample_swr_opts", args, 0);
992
993
5768
        args[0] = '\0';
994
5774
        while ((e = av_dict_get(fg->outputs[0]->ost->resample_opts, "", e,
995
                                AV_DICT_IGNORE_SUFFIX))) {
996
6
            av_strlcatf(args, sizeof(args), "%s=%s:", e->key, e->value);
997
        }
998
5768
        if (strlen(args))
999
6
            args[strlen(args) - 1] = '\0';
1000
1001
5768
        e = av_dict_get(ost->encoder_opts, "threads", NULL, 0);
1002
5768
        if (e)
1003
3333
            av_opt_set(fg->graph, "threads", e->value, 0);
1004
    } else {
1005
82
        fg->graph->nb_threads = filter_complex_nbthreads;
1006
    }
1007
1008
5850
    if ((ret = avfilter_graph_parse2(fg->graph, graph_desc, &inputs, &outputs)) < 0)
1009
        goto fail;
1010
1011
5850
    ret = hw_device_setup_for_filter(fg);
1012
5850
    if (ret < 0)
1013
        goto fail;
1014
1015


5850
    if (simple && (!inputs || inputs->next || !outputs || outputs->next)) {
1016
        const char *num_inputs;
1017
        const char *num_outputs;
1018
        if (!outputs) {
1019
            num_outputs = "0";
1020
        } else if (outputs->next) {
1021
            num_outputs = ">1";
1022
        } else {
1023
            num_outputs = "1";
1024
        }
1025
        if (!inputs) {
1026
            num_inputs = "0";
1027
        } else if (inputs->next) {
1028
            num_inputs = ">1";
1029
        } else {
1030
            num_inputs = "1";
1031
        }
1032
        av_log(NULL, AV_LOG_ERROR, "Simple filtergraph '%s' was expected "
1033
               "to have exactly 1 input and 1 output."
1034
               " However, it had %s input(s) and %s output(s)."
1035
               " Please adjust, or use a complex filtergraph (-filter_complex) instead.\n",
1036
               graph_desc, num_inputs, num_outputs);
1037
        ret = AVERROR(EINVAL);
1038
        goto fail;
1039
    }
1040
1041
11678
    for (cur = inputs, i = 0; cur; cur = cur->next, i++)
1042
5828
        if ((ret = configure_input_filter(fg, fg->inputs[i], cur)) < 0) {
1043
            avfilter_inout_free(&inputs);
1044
            avfilter_inout_free(&outputs);
1045
            goto fail;
1046
        }
1047
5850
    avfilter_inout_free(&inputs);
1048
1049
11703
    for (cur = outputs, i = 0; cur; cur = cur->next, i++)
1050
5853
        configure_output_filter(fg, fg->outputs[i], cur);
1051
5850
    avfilter_inout_free(&outputs);
1052
1053
5850
    if (!auto_conversion_filters)
1054
4208
        avfilter_graph_set_auto_convert(fg->graph, AVFILTER_AUTO_CONVERT_NONE);
1055
5850
    if ((ret = avfilter_graph_config(fg->graph, NULL)) < 0)
1056
4
        goto fail;
1057
1058
    /* limit the lists of allowed formats to the ones selected, to
1059
     * make sure they stay the same if the filtergraph is reconfigured later */
1060
11695
    for (i = 0; i < fg->nb_outputs; i++) {
1061
5849
        OutputFilter *ofilter = fg->outputs[i];
1062
5849
        AVFilterContext *sink = ofilter->filter;
1063
1064
5849
        ofilter->format = av_buffersink_get_format(sink);
1065
1066
5849
        ofilter->width  = av_buffersink_get_w(sink);
1067
5849
        ofilter->height = av_buffersink_get_h(sink);
1068
1069
5849
        ofilter->sample_rate    = av_buffersink_get_sample_rate(sink);
1070
5849
        ofilter->channel_layout = av_buffersink_get_channel_layout(sink);
1071
    }
1072
1073
5846
    fg->reconfiguration = 1;
1074
1075
11695
    for (i = 0; i < fg->nb_outputs; i++) {
1076
5849
        OutputStream *ost = fg->outputs[i]->ost;
1077
5849
        if (!ost->enc) {
1078
            /* identical to the same check in ffmpeg.c, needed because
1079
               complex filter graphs are initialized earlier */
1080
            av_log(NULL, AV_LOG_ERROR, "Encoder (codec %s) not found for output stream #%d:%d\n",
1081
                     avcodec_get_name(ost->st->codecpar->codec_id), ost->file_index, ost->index);
1082
            ret = AVERROR(EINVAL);
1083
            goto fail;
1084
        }
1085
5849
        if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
1086
1129
            !(ost->enc->capabilities & AV_CODEC_CAP_VARIABLE_FRAME_SIZE))
1087
101
            av_buffersink_set_frame_size(ost->filter->filter,
1088
101
                                         ost->enc_ctx->frame_size);
1089
    }
1090
1091
11674
    for (i = 0; i < fg->nb_inputs; i++) {
1092
5847
        while (av_fifo_size(fg->inputs[i]->frame_queue)) {
1093
            AVFrame *tmp;
1094
19
            av_fifo_generic_read(fg->inputs[i]->frame_queue, &tmp, sizeof(tmp), NULL);
1095
19
            ret = av_buffersrc_add_frame(fg->inputs[i]->filter, tmp);
1096
19
            av_frame_free(&tmp);
1097
19
            if (ret < 0)
1098
                goto fail;
1099
        }
1100
    }
1101
1102
    /* send the EOFs for the finished inputs */
1103
11674
    for (i = 0; i < fg->nb_inputs; i++) {
1104
5828
        if (fg->inputs[i]->eof) {
1105
1
            ret = av_buffersrc_add_frame(fg->inputs[i]->filter, NULL);
1106
1
            if (ret < 0)
1107
                goto fail;
1108
        }
1109
    }
1110
1111
    /* process queued up subtitle packets */
1112
11674
    for (i = 0; i < fg->nb_inputs; i++) {
1113
5828
        InputStream *ist = fg->inputs[i]->ist;
1114

5828
        if (ist->sub2video.sub_queue && ist->sub2video.frame) {
1115
            while (av_fifo_size(ist->sub2video.sub_queue)) {
1116
                AVSubtitle tmp;
1117
                av_fifo_generic_read(ist->sub2video.sub_queue, &tmp, sizeof(tmp), NULL);
1118
                sub2video_update(ist, INT64_MIN, &tmp);
1119
                avsubtitle_free(&tmp);
1120
            }
1121
        }
1122
    }
1123
1124
5846
    return 0;
1125
1126
4
fail:
1127
4
    cleanup_filtergraph(fg);
1128
4
    return ret;
1129
}
1130
1131
5823
int ifilter_parameters_from_frame(InputFilter *ifilter, const AVFrame *frame)
1132
{
1133
5823
    av_buffer_unref(&ifilter->hw_frames_ctx);
1134
1135
5823
    ifilter->format = frame->format;
1136
1137
5823
    ifilter->width               = frame->width;
1138
5823
    ifilter->height              = frame->height;
1139
5823
    ifilter->sample_aspect_ratio = frame->sample_aspect_ratio;
1140
1141
5823
    ifilter->sample_rate         = frame->sample_rate;
1142
5823
    ifilter->channels            = frame->channels;
1143
5823
    ifilter->channel_layout      = frame->channel_layout;
1144
1145
5823
    if (frame->hw_frames_ctx) {
1146
        ifilter->hw_frames_ctx = av_buffer_ref(frame->hw_frames_ctx);
1147
        if (!ifilter->hw_frames_ctx)
1148
            return AVERROR(ENOMEM);
1149
    }
1150
1151
5823
    return 0;
1152
}
1153
1154
17455
int filtergraph_is_simple(FilterGraph *fg)
1155
{
1156
17455
    return !fg->graph_desc;
1157
}