GCC Code Coverage Report
Directory: ../../../ffmpeg/ Exec Total Coverage
File: src/fftools/ffmpeg_filter.c Lines: 454 638 71.2 %
Date: 2020-04-02 05:41:20 Branches: 279 478 58.4 %

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
3332
enum AVPixelFormat choose_pixel_fmt(AVStream *st, AVCodecContext *enc_ctx, AVCodec *codec, enum AVPixelFormat target)
64
{
65

3332
    if (codec && codec->pix_fmts) {
66
273
        const enum AVPixelFormat *p = codec->pix_fmts;
67
273
        const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(target);
68
        //FIXME: This should check for AV_PIX_FMT_FLAG_ALPHA after PAL8 pixel format without alpha is implemented
69

273
        int has_alpha = desc ? desc->nb_components % 2 == 0 : 0;
70
273
        enum AVPixelFormat best= AV_PIX_FMT_NONE;
71
72
273
        if (enc_ctx->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL) {
73
45
            p = get_compliance_unofficial_pix_fmts(enc_ctx->codec_id, p);
74
        }
75
1371
        for (; *p != AV_PIX_FMT_NONE; p++) {
76
1362
            best= avcodec_find_best_pix_fmt_of_2(best, *p, target, has_alpha, NULL);
77
1362
            if (*p == target)
78
264
                break;
79
        }
80
273
        if (*p == AV_PIX_FMT_NONE) {
81
9
            if (target != AV_PIX_FMT_NONE)
82
9
                av_log(NULL, AV_LOG_WARNING,
83
                       "Incompatible pixel format '%s' for codec '%s', auto-selecting format '%s'\n",
84
                       av_get_pix_fmt_name(target),
85
                       codec->name,
86
                       av_get_pix_fmt_name(best));
87
9
            return best;
88
        }
89
    }
90
3323
    return target;
91
}
92
93
void choose_sample_fmt(AVStream *st, AVCodec *codec)
94
{
95
    if (codec && codec->sample_fmts) {
96
        const enum AVSampleFormat *p = codec->sample_fmts;
97
        for (; *p != -1; p++) {
98
            if (*p == st->codecpar->format)
99
                break;
100
        }
101
        if (*p == -1) {
102
            if((codec->capabilities & AV_CODEC_CAP_LOSSLESS) && av_get_sample_fmt_name(st->codecpar->format) > av_get_sample_fmt_name(codec->sample_fmts[0]))
103
                av_log(NULL, AV_LOG_ERROR, "Conversion will not be lossless.\n");
104
            if(av_get_sample_fmt_name(st->codecpar->format))
105
            av_log(NULL, AV_LOG_WARNING,
106
                   "Incompatible sample format '%s' for codec '%s', auto-selecting format '%s'\n",
107
                   av_get_sample_fmt_name(st->codecpar->format),
108
                   codec->name,
109
                   av_get_sample_fmt_name(codec->sample_fmts[0]));
110
            st->codecpar->format = codec->sample_fmts[0];
111
        }
112
    }
113
}
114
115
4629
static char *choose_pix_fmts(OutputFilter *ofilter)
116
{
117
4629
    OutputStream *ost = ofilter->ost;
118
4629
    AVDictionaryEntry *strict_dict = av_dict_get(ost->encoder_opts, "strict", NULL, 0);
119
4629
    if (strict_dict)
120
        // used by choose_pixel_fmt() and below
121
64
        av_opt_set(ost->enc_ctx, "strict", strict_dict->value, 0);
122
123
4629
     if (ost->keep_pix_fmt) {
124
        avfilter_graph_set_auto_convert(ofilter->graph->graph,
125
                                            AVFILTER_AUTO_CONVERT_NONE);
126
        if (ost->enc_ctx->pix_fmt == AV_PIX_FMT_NONE)
127
            return NULL;
128
        return av_strdup(av_get_pix_fmt_name(ost->enc_ctx->pix_fmt));
129
    }
130
4629
    if (ost->enc_ctx->pix_fmt != AV_PIX_FMT_NONE) {
131
3332
        return av_strdup(av_get_pix_fmt_name(choose_pixel_fmt(ost->st, ost->enc_ctx, ost->enc, ost->enc_ctx->pix_fmt)));
132

1297
    } else if (ost->enc && ost->enc->pix_fmts) {
133
        const enum AVPixelFormat *p;
134
290
        AVIOContext *s = NULL;
135
        uint8_t *ret;
136
        int len;
137
138
290
        if (avio_open_dyn_buf(&s) < 0)
139
            exit_program(1);
140
141
290
        p = ost->enc->pix_fmts;
142
290
        if (ost->enc_ctx->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL) {
143
19
            p = get_compliance_unofficial_pix_fmts(ost->enc_ctx->codec_id, p);
144
        }
145
146
1474
        for (; *p != AV_PIX_FMT_NONE; p++) {
147
1184
            const char *name = av_get_pix_fmt_name(*p);
148
1184
            avio_printf(s, "%s|", name);
149
        }
150
290
        len = avio_close_dyn_buf(s, &ret);
151
290
        ret[len - 1] = 0;
152
290
        return ret;
153
    } else
154
1007
        return NULL;
155
}
156
157
/* Define a function for building a string containing a list of
158
 * allowed formats. */
159
#define DEF_CHOOSE_FORMAT(suffix, type, var, supported_list, none, get_name)   \
160
static char *choose_ ## suffix (OutputFilter *ofilter)                         \
161
{                                                                              \
162
    if (ofilter->var != none) {                                                \
163
        get_name(ofilter->var);                                                \
164
        return av_strdup(name);                                                \
165
    } else if (ofilter->supported_list) {                                      \
166
        const type *p;                                                         \
167
        AVIOContext *s = NULL;                                                 \
168
        uint8_t *ret;                                                          \
169
        int len;                                                               \
170
                                                                               \
171
        if (avio_open_dyn_buf(&s) < 0)                                         \
172
            exit_program(1);                                                           \
173
                                                                               \
174
        for (p = ofilter->supported_list; *p != none; p++) {                   \
175
            get_name(*p);                                                      \
176
            avio_printf(s, "%s|", name);                                       \
177
        }                                                                      \
178
        len = avio_close_dyn_buf(s, &ret);                                     \
179
        ret[len - 1] = 0;                                                      \
180
        return ret;                                                            \
181
    } else                                                                     \
182
        return NULL;                                                           \
183
}
184
185
//DEF_CHOOSE_FORMAT(pix_fmts, enum AVPixelFormat, format, formats, AV_PIX_FMT_NONE,
186
//                  GET_PIX_FMT_NAME)
187
188


2235
DEF_CHOOSE_FORMAT(sample_fmts, enum AVSampleFormat, format, formats,
189
                  AV_SAMPLE_FMT_NONE, GET_SAMPLE_FMT_NAME)
190
191


1353
DEF_CHOOSE_FORMAT(sample_rates, int, sample_rate, sample_rates, 0,
192
                  GET_SAMPLE_RATE_NAME)
193
194


1339
DEF_CHOOSE_FORMAT(channel_layouts, uint64_t, channel_layout, channel_layouts, 0,
195
                  GET_CH_LAYOUT_NAME)
196
197
5616
int init_simple_filtergraph(InputStream *ist, OutputStream *ost)
198
{
199
5616
    FilterGraph *fg = av_mallocz(sizeof(*fg));
200
201
5616
    if (!fg)
202
        exit_program(1);
203
5616
    fg->index = nb_filtergraphs;
204
205
5616
    GROW_ARRAY(fg->outputs, fg->nb_outputs);
206
5616
    if (!(fg->outputs[0] = av_mallocz(sizeof(*fg->outputs[0]))))
207
        exit_program(1);
208
5616
    fg->outputs[0]->ost   = ost;
209
5616
    fg->outputs[0]->graph = fg;
210
5616
    fg->outputs[0]->format = -1;
211
212
5616
    ost->filter = fg->outputs[0];
213
214
5616
    GROW_ARRAY(fg->inputs, fg->nb_inputs);
215
5616
    if (!(fg->inputs[0] = av_mallocz(sizeof(*fg->inputs[0]))))
216
        exit_program(1);
217
5616
    fg->inputs[0]->ist   = ist;
218
5616
    fg->inputs[0]->graph = fg;
219
5616
    fg->inputs[0]->format = -1;
220
221
5616
    fg->inputs[0]->frame_queue = av_fifo_alloc(8 * sizeof(AVFrame*));
222
5616
    if (!fg->inputs[0]->frame_queue)
223
        exit_program(1);
224
225
5616
    GROW_ARRAY(ist->filters, ist->nb_filters);
226
5616
    ist->filters[ist->nb_filters - 1] = fg->inputs[0];
227
228
5616
    GROW_ARRAY(filtergraphs, nb_filtergraphs);
229
5616
    filtergraphs[nb_filtergraphs - 1] = fg;
230
231
5616
    return 0;
232
}
233
234
135
static char *describe_filter_link(FilterGraph *fg, AVFilterInOut *inout, int in)
235
{
236
135
    AVFilterContext *ctx = inout->filter_ctx;
237
135
    AVFilterPad *pads = in ? ctx->input_pads  : ctx->output_pads;
238
135
    int       nb_pads = in ? ctx->nb_inputs   : ctx->nb_outputs;
239
    AVIOContext *pb;
240
135
    uint8_t *res = NULL;
241
242
135
    if (avio_open_dyn_buf(&pb) < 0)
243
        exit_program(1);
244
245
135
    avio_printf(pb, "%s", ctx->filter->name);
246
135
    if (nb_pads > 1)
247
45
        avio_printf(pb, ":%s", avfilter_pad_get_name(pads, inout->pad_idx));
248
135
    avio_w8(pb, 0);
249
135
    avio_close_dyn_buf(pb, &res);
250
135
    return res;
251
}
252
253
58
static void init_input_filter(FilterGraph *fg, AVFilterInOut *in)
254
{
255
58
    InputStream *ist = NULL;
256
58
    enum AVMediaType type = avfilter_pad_get_type(in->filter_ctx->input_pads, in->pad_idx);
257
    int i;
258
259
    // TODO: support other filter types
260

58
    if (type != AVMEDIA_TYPE_VIDEO && type != AVMEDIA_TYPE_AUDIO) {
261
        av_log(NULL, AV_LOG_FATAL, "Only video and audio filters supported "
262
               "currently.\n");
263
        exit_program(1);
264
    }
265
266
58
    if (in->name) {
267
        AVFormatContext *s;
268
12
        AVStream       *st = NULL;
269
        char *p;
270
12
        int file_idx = strtol(in->name, &p, 0);
271
272

12
        if (file_idx < 0 || file_idx >= nb_input_files) {
273
            av_log(NULL, AV_LOG_FATAL, "Invalid file index %d in filtergraph description %s.\n",
274
                   file_idx, fg->graph_desc);
275
            exit_program(1);
276
        }
277
12
        s = input_files[file_idx]->ctx;
278
279
16
        for (i = 0; i < s->nb_streams; i++) {
280
16
            enum AVMediaType stream_type = s->streams[i]->codecpar->codec_type;
281

16
            if (stream_type != type &&
282
5
                !(stream_type == AVMEDIA_TYPE_SUBTITLE &&
283
                  type == AVMEDIA_TYPE_VIDEO /* sub2video hack */))
284
2
                continue;
285

14
            if (check_stream_specifier(s, s->streams[i], *p == ':' ? p + 1 : p) == 1) {
286
12
                st = s->streams[i];
287
12
                break;
288
            }
289
        }
290
12
        if (!st) {
291
            av_log(NULL, AV_LOG_FATAL, "Stream specifier '%s' in filtergraph description %s "
292
                   "matches no streams.\n", p, fg->graph_desc);
293
            exit_program(1);
294
        }
295
12
        ist = input_streams[input_files[file_idx]->ist_index + st->index];
296
12
        if (ist->user_set_discard == AVDISCARD_ALL) {
297
            av_log(NULL, AV_LOG_FATAL, "Stream specifier '%s' in filtergraph description %s "
298
                   "matches a disabled input stream.\n", p, fg->graph_desc);
299
            exit_program(1);
300
        }
301
    } else {
302
        /* find the first unused stream of corresponding type */
303
64
        for (i = 0; i < nb_input_streams; i++) {
304
64
            ist = input_streams[i];
305
64
            if (ist->user_set_discard == AVDISCARD_ALL)
306
                continue;
307

64
            if (ist->dec_ctx->codec_type == type && ist->discard)
308
46
                break;
309
        }
310
46
        if (i == nb_input_streams) {
311
            av_log(NULL, AV_LOG_FATAL, "Cannot find a matching stream for "
312
                   "unlabeled input pad %d on filter %s\n", in->pad_idx,
313
                   in->filter_ctx->name);
314
            exit_program(1);
315
        }
316
    }
317
58
    av_assert0(ist);
318
319
58
    ist->discard         = 0;
320
58
    ist->decoding_needed |= DECODING_FOR_FILTER;
321
58
    ist->st->discard = AVDISCARD_NONE;
322
323
58
    GROW_ARRAY(fg->inputs, fg->nb_inputs);
324
58
    if (!(fg->inputs[fg->nb_inputs - 1] = av_mallocz(sizeof(*fg->inputs[0]))))
325
        exit_program(1);
326
58
    fg->inputs[fg->nb_inputs - 1]->ist   = ist;
327
58
    fg->inputs[fg->nb_inputs - 1]->graph = fg;
328
58
    fg->inputs[fg->nb_inputs - 1]->format = -1;
329
58
    fg->inputs[fg->nb_inputs - 1]->type = ist->st->codecpar->codec_type;
330
58
    fg->inputs[fg->nb_inputs - 1]->name = describe_filter_link(fg, in, 1);
331
332
58
    fg->inputs[fg->nb_inputs - 1]->frame_queue = av_fifo_alloc(8 * sizeof(AVFrame*));
333
58
    if (!fg->inputs[fg->nb_inputs - 1]->frame_queue)
334
        exit_program(1);
335
336
58
    GROW_ARRAY(ist->filters, ist->nb_filters);
337
58
    ist->filters[ist->nb_filters - 1] = fg->inputs[fg->nb_inputs - 1];
338
58
}
339
340
74
int init_complex_filtergraph(FilterGraph *fg)
341
{
342
    AVFilterInOut *inputs, *outputs, *cur;
343
    AVFilterGraph *graph;
344
74
    int ret = 0;
345
346
    /* this graph is only used for determining the kinds of inputs
347
     * and outputs we have, and is discarded on exit from this function */
348
74
    graph = avfilter_graph_alloc();
349
74
    if (!graph)
350
        return AVERROR(ENOMEM);
351
74
    graph->nb_threads = 1;
352
353
74
    ret = avfilter_graph_parse2(graph, fg->graph_desc, &inputs, &outputs);
354
74
    if (ret < 0)
355
        goto fail;
356
357
132
    for (cur = inputs; cur; cur = cur->next)
358
58
        init_input_filter(fg, cur);
359
360
151
    for (cur = outputs; cur;) {
361
77
        GROW_ARRAY(fg->outputs, fg->nb_outputs);
362
77
        fg->outputs[fg->nb_outputs - 1] = av_mallocz(sizeof(*fg->outputs[0]));
363
77
        if (!fg->outputs[fg->nb_outputs - 1])
364
            exit_program(1);
365
366
77
        fg->outputs[fg->nb_outputs - 1]->graph   = fg;
367
77
        fg->outputs[fg->nb_outputs - 1]->out_tmp = cur;
368
77
        fg->outputs[fg->nb_outputs - 1]->type    = avfilter_pad_get_type(cur->filter_ctx->output_pads,
369
                                                                         cur->pad_idx);
370
77
        fg->outputs[fg->nb_outputs - 1]->name = describe_filter_link(fg, cur, 0);
371
77
        cur = cur->next;
372
77
        fg->outputs[fg->nb_outputs - 1]->out_tmp->next = NULL;
373
    }
374
375
74
fail:
376
74
    avfilter_inout_free(&inputs);
377
74
    avfilter_graph_free(&graph);
378
74
    return ret;
379
}
380
381
11441
static int insert_trim(int64_t start_time, int64_t duration,
382
                       AVFilterContext **last_filter, int *pad_idx,
383
                       const char *filter_name)
384
{
385
11441
    AVFilterGraph *graph = (*last_filter)->graph;
386
    AVFilterContext *ctx;
387
    const AVFilter *trim;
388
11441
    enum AVMediaType type = avfilter_pad_get_type((*last_filter)->output_pads, *pad_idx);
389
11441
    const char *name = (type == AVMEDIA_TYPE_VIDEO) ? "trim" : "atrim";
390
11441
    int ret = 0;
391
392

11441
    if (duration == INT64_MAX && start_time == AV_NOPTS_VALUE)
393
11270
        return 0;
394
395
171
    trim = avfilter_get_by_name(name);
396
171
    if (!trim) {
397
        av_log(NULL, AV_LOG_ERROR, "%s filter not present, cannot limit "
398
               "recording time.\n", name);
399
        return AVERROR_FILTER_NOT_FOUND;
400
    }
401
402
171
    ctx = avfilter_graph_alloc_filter(graph, trim, filter_name);
403
171
    if (!ctx)
404
        return AVERROR(ENOMEM);
405
406
171
    if (duration != INT64_MAX) {
407
155
        ret = av_opt_set_int(ctx, "durationi", duration,
408
                                AV_OPT_SEARCH_CHILDREN);
409
    }
410

171
    if (ret >= 0 && start_time != AV_NOPTS_VALUE) {
411
16
        ret = av_opt_set_int(ctx, "starti", start_time,
412
                                AV_OPT_SEARCH_CHILDREN);
413
    }
414
171
    if (ret < 0) {
415
        av_log(ctx, AV_LOG_ERROR, "Error configuring the %s filter", name);
416
        return ret;
417
    }
418
419
171
    ret = avfilter_init_str(ctx, NULL);
420
171
    if (ret < 0)
421
        return ret;
422
423
171
    ret = avfilter_link(*last_filter, *pad_idx, ctx, 0);
424
171
    if (ret < 0)
425
        return ret;
426
427
171
    *last_filter = ctx;
428
171
    *pad_idx     = 0;
429
171
    return 0;
430
}
431
432
static int insert_filter(AVFilterContext **last_filter, int *pad_idx,
433
                         const char *filter_name, const char *args)
434
{
435
    AVFilterGraph *graph = (*last_filter)->graph;
436
    AVFilterContext *ctx;
437
    int ret;
438
439
    ret = avfilter_graph_create_filter(&ctx,
440
                                       avfilter_get_by_name(filter_name),
441
                                       filter_name, args, NULL, graph);
442
    if (ret < 0)
443
        return ret;
444
445
    ret = avfilter_link(*last_filter, *pad_idx, ctx, 0);
446
    if (ret < 0)
447
        return ret;
448
449
    *last_filter = ctx;
450
    *pad_idx     = 0;
451
    return 0;
452
}
453
454
4629
static int configure_output_video_filter(FilterGraph *fg, OutputFilter *ofilter, AVFilterInOut *out)
455
{
456
    char *pix_fmts;
457
4629
    OutputStream *ost = ofilter->ost;
458
4629
    OutputFile    *of = output_files[ost->file_index];
459
4629
    AVFilterContext *last_filter = out->filter_ctx;
460
4629
    int pad_idx = out->pad_idx;
461
    int ret;
462
    char name[255];
463
464
4629
    snprintf(name, sizeof(name), "out_%d_%d", ost->file_index, ost->index);
465
4629
    ret = avfilter_graph_create_filter(&ofilter->filter,
466
                                       avfilter_get_by_name("buffersink"),
467
                                       name, NULL, NULL, fg->graph);
468
469
4629
    if (ret < 0)
470
        return ret;
471
472

4629
    if (ofilter->width || ofilter->height) {
473
        char args[255];
474
        AVFilterContext *filter;
475
645
        AVDictionaryEntry *e = NULL;
476
477
645
        snprintf(args, sizeof(args), "%d:%d",
478
                 ofilter->width, ofilter->height);
479
480
1924
        while ((e = av_dict_get(ost->sws_dict, "", e,
481
                                AV_DICT_IGNORE_SUFFIX))) {
482
1279
            av_strlcatf(args, sizeof(args), ":%s=%s", e->key, e->value);
483
        }
484
485
645
        snprintf(name, sizeof(name), "scaler_out_%d_%d",
486
                 ost->file_index, ost->index);
487
645
        if ((ret = avfilter_graph_create_filter(&filter, avfilter_get_by_name("scale"),
488
                                                name, args, NULL, fg->graph)) < 0)
489
            return ret;
490
645
        if ((ret = avfilter_link(last_filter, pad_idx, filter, 0)) < 0)
491
            return ret;
492
493
645
        last_filter = filter;
494
645
        pad_idx = 0;
495
    }
496
497
4629
    if ((pix_fmts = choose_pix_fmts(ofilter))) {
498
        AVFilterContext *filter;
499
3622
        snprintf(name, sizeof(name), "format_out_%d_%d",
500
                 ost->file_index, ost->index);
501
3622
        ret = avfilter_graph_create_filter(&filter,
502
                                           avfilter_get_by_name("format"),
503
                                           "format", pix_fmts, NULL, fg->graph);
504
3622
        av_freep(&pix_fmts);
505
3622
        if (ret < 0)
506
            return ret;
507
3622
        if ((ret = avfilter_link(last_filter, pad_idx, filter, 0)) < 0)
508
            return ret;
509
510
3622
        last_filter = filter;
511
3622
        pad_idx     = 0;
512
    }
513
514
    if (ost->frame_rate.num && 0) {
515
        AVFilterContext *fps;
516
        char args[255];
517
518
        snprintf(args, sizeof(args), "fps=%d/%d", ost->frame_rate.num,
519
                 ost->frame_rate.den);
520
        snprintf(name, sizeof(name), "fps_out_%d_%d",
521
                 ost->file_index, ost->index);
522
        ret = avfilter_graph_create_filter(&fps, avfilter_get_by_name("fps"),
523
                                           name, args, NULL, fg->graph);
524
        if (ret < 0)
525
            return ret;
526
527
        ret = avfilter_link(last_filter, pad_idx, fps, 0);
528
        if (ret < 0)
529
            return ret;
530
        last_filter = fps;
531
        pad_idx = 0;
532
    }
533
534
4629
    snprintf(name, sizeof(name), "trim_out_%d_%d",
535
             ost->file_index, ost->index);
536
4629
    ret = insert_trim(of->start_time, of->recording_time,
537
                      &last_filter, &pad_idx, name);
538
4629
    if (ret < 0)
539
        return ret;
540
541
542
4629
    if ((ret = avfilter_link(last_filter, pad_idx, ofilter->filter, 0)) < 0)
543
        return ret;
544
545
4629
    return 0;
546
}
547
548
1101
static int configure_output_audio_filter(FilterGraph *fg, OutputFilter *ofilter, AVFilterInOut *out)
549
{
550
1101
    OutputStream *ost = ofilter->ost;
551
1101
    OutputFile    *of = output_files[ost->file_index];
552
1101
    AVCodecContext *codec  = ost->enc_ctx;
553
1101
    AVFilterContext *last_filter = out->filter_ctx;
554
1101
    int pad_idx = out->pad_idx;
555
    char *sample_fmts, *sample_rates, *channel_layouts;
556
    char name[255];
557
    int ret;
558
559
1101
    snprintf(name, sizeof(name), "out_%d_%d", ost->file_index, ost->index);
560
1101
    ret = avfilter_graph_create_filter(&ofilter->filter,
561
                                       avfilter_get_by_name("abuffersink"),
562
                                       name, NULL, NULL, fg->graph);
563
1101
    if (ret < 0)
564
        return ret;
565
1101
    if ((ret = av_opt_set_int(ofilter->filter, "all_channel_counts", 1, AV_OPT_SEARCH_CHILDREN)) < 0)
566
        return ret;
567
568
#define AUTO_INSERT_FILTER(opt_name, filter_name, arg) do {                 \
569
    AVFilterContext *filt_ctx;                                              \
570
                                                                            \
571
    av_log(NULL, AV_LOG_INFO, opt_name " is forwarded to lavfi "            \
572
           "similarly to -af " filter_name "=%s.\n", arg);                  \
573
                                                                            \
574
    ret = avfilter_graph_create_filter(&filt_ctx,                           \
575
                                       avfilter_get_by_name(filter_name),   \
576
                                       filter_name, arg, NULL, fg->graph);  \
577
    if (ret < 0)                                                            \
578
        return ret;                                                         \
579
                                                                            \
580
    ret = avfilter_link(last_filter, pad_idx, filt_ctx, 0);                 \
581
    if (ret < 0)                                                            \
582
        return ret;                                                         \
583
                                                                            \
584
    last_filter = filt_ctx;                                                 \
585
    pad_idx = 0;                                                            \
586
} while (0)
587
1101
    if (ost->audio_channels_mapped) {
588
        int i;
589
        AVBPrint pan_buf;
590
6
        av_bprint_init(&pan_buf, 256, 8192);
591
6
        av_bprintf(&pan_buf, "0x%"PRIx64,
592
                   av_get_default_channel_layout(ost->audio_channels_mapped));
593
16
        for (i = 0; i < ost->audio_channels_mapped; i++)
594
10
            if (ost->audio_channels_map[i] != -1)
595
9
                av_bprintf(&pan_buf, "|c%d=c%d", i, ost->audio_channels_map[i]);
596
597

6
        AUTO_INSERT_FILTER("-map_channel", "pan", pan_buf.str);
598
6
        av_bprint_finalize(&pan_buf, NULL);
599
    }
600
601

1101
    if (codec->channels && !codec->channel_layout)
602
12
        codec->channel_layout = av_get_default_channel_layout(codec->channels);
603
604
1101
    sample_fmts     = choose_sample_fmts(ofilter);
605
1101
    sample_rates    = choose_sample_rates(ofilter);
606
1101
    channel_layouts = choose_channel_layouts(ofilter);
607

1101
    if (sample_fmts || sample_rates || channel_layouts) {
608
        AVFilterContext *format;
609
        char args[256];
610
1101
        args[0] = 0;
611
612
1101
        if (sample_fmts)
613
1101
            av_strlcatf(args, sizeof(args), "sample_fmts=%s:",
614
                            sample_fmts);
615
1101
        if (sample_rates)
616
55
            av_strlcatf(args, sizeof(args), "sample_rates=%s:",
617
                            sample_rates);
618
1101
        if (channel_layouts)
619
55
            av_strlcatf(args, sizeof(args), "channel_layouts=%s:",
620
                            channel_layouts);
621
622
1101
        av_freep(&sample_fmts);
623
1101
        av_freep(&sample_rates);
624
1101
        av_freep(&channel_layouts);
625
626
1101
        snprintf(name, sizeof(name), "format_out_%d_%d",
627
                 ost->file_index, ost->index);
628
1101
        ret = avfilter_graph_create_filter(&format,
629
                                           avfilter_get_by_name("aformat"),
630
                                           name, args, NULL, fg->graph);
631
1101
        if (ret < 0)
632
            return ret;
633
634
1101
        ret = avfilter_link(last_filter, pad_idx, format, 0);
635
1101
        if (ret < 0)
636
            return ret;
637
638
1101
        last_filter = format;
639
1101
        pad_idx = 0;
640
    }
641
642
    if (audio_volume != 256 && 0) {
643
        char args[256];
644
645
        snprintf(args, sizeof(args), "%f", audio_volume / 256.);
646
        AUTO_INSERT_FILTER("-vol", "volume", args);
647
    }
648
649

1101
    if (ost->apad && of->shortest) {
650
        char args[256];
651
        int i;
652
653
        for (i=0; i<of->ctx->nb_streams; i++)
654
            if (of->ctx->streams[i]->codecpar->codec_type == AVMEDIA_TYPE_VIDEO)
655
                break;
656
657
        if (i<of->ctx->nb_streams) {
658
            snprintf(args, sizeof(args), "%s", ost->apad);
659
            AUTO_INSERT_FILTER("-apad", "apad", args);
660
        }
661
    }
662
663
1101
    snprintf(name, sizeof(name), "trim for output stream %d:%d",
664
             ost->file_index, ost->index);
665
1101
    ret = insert_trim(of->start_time, of->recording_time,
666
                      &last_filter, &pad_idx, name);
667
1101
    if (ret < 0)
668
        return ret;
669
670
1101
    if ((ret = avfilter_link(last_filter, pad_idx, ofilter->filter, 0)) < 0)
671
        return ret;
672
673
1101
    return 0;
674
}
675
676
5730
int configure_output_filter(FilterGraph *fg, OutputFilter *ofilter, AVFilterInOut *out)
677
{
678
5730
    if (!ofilter->ost) {
679
        av_log(NULL, AV_LOG_FATAL, "Filter %s has an unconnected output\n", ofilter->name);
680
        exit_program(1);
681
    }
682
683
5730
    switch (avfilter_pad_get_type(out->filter_ctx->output_pads, out->pad_idx)) {
684
4629
    case AVMEDIA_TYPE_VIDEO: return configure_output_video_filter(fg, ofilter, out);
685
1101
    case AVMEDIA_TYPE_AUDIO: return configure_output_audio_filter(fg, ofilter, out);
686
    default: av_assert0(0);
687
    }
688
}
689
690
5870
void check_filter_outputs(void)
691
{
692
    int i;
693
11560
    for (i = 0; i < nb_filtergraphs; i++) {
694
        int n;
695
11383
        for (n = 0; n < filtergraphs[i]->nb_outputs; n++) {
696
5693
            OutputFilter *output = filtergraphs[i]->outputs[n];
697
5693
            if (!output->ost) {
698
                av_log(NULL, AV_LOG_FATAL, "Filter %s has an unconnected output\n", output->name);
699
                exit_program(1);
700
            }
701
        }
702
    }
703
5870
}
704
705
4
static int sub2video_prepare(InputStream *ist, InputFilter *ifilter)
706
{
707
4
    AVFormatContext *avf = input_files[ist->file_index]->ctx;
708
    int i, w, h;
709
710
    /* Compute the size of the canvas for the subtitles stream.
711
       If the subtitles codecpar has set a size, use it. Otherwise use the
712
       maximum dimensions of the video streams in the same file. */
713
4
    w = ifilter->width;
714
4
    h = ifilter->height;
715

4
    if (!(w && h)) {
716
12
        for (i = 0; i < avf->nb_streams; i++) {
717
8
            if (avf->streams[i]->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) {
718
1
                w = FFMAX(w, avf->streams[i]->codecpar->width);
719
1
                h = FFMAX(h, avf->streams[i]->codecpar->height);
720
            }
721
        }
722

4
        if (!(w && h)) {
723
3
            w = FFMAX(w, 720);
724
3
            h = FFMAX(h, 576);
725
        }
726
4
        av_log(avf, AV_LOG_INFO, "sub2video: using %dx%d canvas\n", w, h);
727
    }
728
4
    ist->sub2video.w = ifilter->width  = w;
729
4
    ist->sub2video.h = ifilter->height = h;
730
731
4
    ifilter->width  = ist->dec_ctx->width  ? ist->dec_ctx->width  : ist->sub2video.w;
732
4
    ifilter->height = ist->dec_ctx->height ? ist->dec_ctx->height : ist->sub2video.h;
733
734
    /* rectangles are AV_PIX_FMT_PAL8, but we have no guarantee that the
735
       palettes for all rectangles are identical or compatible */
736
4
    ifilter->format = AV_PIX_FMT_RGB32;
737
738
4
    ist->sub2video.frame = av_frame_alloc();
739
4
    if (!ist->sub2video.frame)
740
        return AVERROR(ENOMEM);
741
4
    ist->sub2video.last_pts = INT64_MIN;
742
4
    ist->sub2video.end_pts  = INT64_MIN;
743
744
    /* sub2video structure has been (re-)initialized.
745
       Mark it as such so that the system will be
746
       initialized with the first received heartbeat. */
747
4
    ist->sub2video.initialize = 1;
748
749
4
    return 0;
750
}
751
752
4607
static int configure_input_video_filter(FilterGraph *fg, InputFilter *ifilter,
753
                                        AVFilterInOut *in)
754
{
755
    AVFilterContext *last_filter;
756
4607
    const AVFilter *buffer_filt = avfilter_get_by_name("buffer");
757
4607
    InputStream *ist = ifilter->ist;
758
4607
    InputFile     *f = input_files[ist->file_index];
759
4607
    AVRational tb = ist->framerate.num ? av_inv_q(ist->framerate) :
760
4584
                                         ist->st->time_base;
761
4607
    AVRational fr = ist->framerate;
762
    AVRational sar;
763
    AVBPrint args;
764
    char name[255];
765
4607
    int ret, pad_idx = 0;
766
4607
    int64_t tsoffset = 0;
767
4607
    AVBufferSrcParameters *par = av_buffersrc_parameters_alloc();
768
769
4607
    if (!par)
770
        return AVERROR(ENOMEM);
771
4607
    memset(par, 0, sizeof(*par));
772
4607
    par->format = AV_PIX_FMT_NONE;
773
774
4607
    if (ist->dec_ctx->codec_type == AVMEDIA_TYPE_AUDIO) {
775
        av_log(NULL, AV_LOG_ERROR, "Cannot connect video filter to audio input\n");
776
        ret = AVERROR(EINVAL);
777
        goto fail;
778
    }
779
780
4607
    if (!fr.num)
781
4584
        fr = av_guess_frame_rate(input_files[ist->file_index]->ctx, ist->st, NULL);
782
783
4607
    if (ist->dec_ctx->codec_type == AVMEDIA_TYPE_SUBTITLE) {
784
4
        ret = sub2video_prepare(ist, ifilter);
785
4
        if (ret < 0)
786
            goto fail;
787
    }
788
789
4607
    sar = ifilter->sample_aspect_ratio;
790
4607
    if(!sar.den)
791
4
        sar = (AVRational){0,1};
792
4607
    av_bprint_init(&args, 0, AV_BPRINT_SIZE_AUTOMATIC);
793
4607
    av_bprintf(&args,
794
             "video_size=%dx%d:pix_fmt=%d:time_base=%d/%d:"
795
             "pixel_aspect=%d/%d",
796
             ifilter->width, ifilter->height, ifilter->format,
797
             tb.num, tb.den, sar.num, sar.den);
798

4607
    if (fr.num && fr.den)
799
4603
        av_bprintf(&args, ":frame_rate=%d/%d", fr.num, fr.den);
800
4607
    snprintf(name, sizeof(name), "graph %d input from stream %d:%d", fg->index,
801
4607
             ist->file_index, ist->st->index);
802
803
804
4607
    if ((ret = avfilter_graph_create_filter(&ifilter->filter, buffer_filt, name,
805
4607
                                            args.str, NULL, fg->graph)) < 0)
806
        goto fail;
807
4607
    par->hw_frames_ctx = ifilter->hw_frames_ctx;
808
4607
    ret = av_buffersrc_parameters_set(ifilter->filter, par);
809
4607
    if (ret < 0)
810
        goto fail;
811
4607
    av_freep(&par);
812
4607
    last_filter = ifilter->filter;
813
814
4607
    if (ist->autorotate) {
815
4607
        double theta = get_rotation(ist->st);
816
817
4607
        if (fabs(theta - 90) < 1.0) {
818
            ret = insert_filter(&last_filter, &pad_idx, "transpose", "clock");
819
4607
        } else if (fabs(theta - 180) < 1.0) {
820
            ret = insert_filter(&last_filter, &pad_idx, "hflip", NULL);
821
            if (ret < 0)
822
                return ret;
823
            ret = insert_filter(&last_filter, &pad_idx, "vflip", NULL);
824
4607
        } else if (fabs(theta - 270) < 1.0) {
825
            ret = insert_filter(&last_filter, &pad_idx, "transpose", "cclock");
826
4607
        } else if (fabs(theta) > 1.0) {
827
            char rotate_buf[64];
828
            snprintf(rotate_buf, sizeof(rotate_buf), "%f*PI/180", theta);
829
            ret = insert_filter(&last_filter, &pad_idx, "rotate", rotate_buf);
830
        }
831
4607
        if (ret < 0)
832
            return ret;
833
    }
834
835
4607
    if (do_deinterlace) {
836
        AVFilterContext *yadif;
837
838
        snprintf(name, sizeof(name), "deinterlace_in_%d_%d",
839
                 ist->file_index, ist->st->index);
840
        if ((ret = avfilter_graph_create_filter(&yadif,
841
                                                avfilter_get_by_name("yadif"),
842
                                                name, "", NULL,
843
                                                fg->graph)) < 0)
844
            return ret;
845
846
        if ((ret = avfilter_link(last_filter, 0, yadif, 0)) < 0)
847
            return ret;
848
849
        last_filter = yadif;
850
    }
851
852
4607
    snprintf(name, sizeof(name), "trim_in_%d_%d",
853
4607
             ist->file_index, ist->st->index);
854
4607
    if (copy_ts) {
855
2
        tsoffset = f->start_time == AV_NOPTS_VALUE ? 0 : f->start_time;
856

2
        if (!start_at_zero && f->ctx->start_time != AV_NOPTS_VALUE)
857
1
            tsoffset += f->ctx->start_time;
858
    }
859

4607
    ret = insert_trim(((f->start_time == AV_NOPTS_VALUE) || !f->accurate_seek) ?
860
                      AV_NOPTS_VALUE : tsoffset, f->recording_time,
861
                      &last_filter, &pad_idx, name);
862
4607
    if (ret < 0)
863
        return ret;
864
865
4607
    if ((ret = avfilter_link(last_filter, 0, in->filter_ctx, in->pad_idx)) < 0)
866
        return ret;
867
4607
    return 0;
868
fail:
869
    av_freep(&par);
870
871
    return ret;
872
}
873
874
1104
static int configure_input_audio_filter(FilterGraph *fg, InputFilter *ifilter,
875
                                        AVFilterInOut *in)
876
{
877
    AVFilterContext *last_filter;
878
1104
    const AVFilter *abuffer_filt = avfilter_get_by_name("abuffer");
879
1104
    InputStream *ist = ifilter->ist;
880
1104
    InputFile     *f = input_files[ist->file_index];
881
    AVBPrint args;
882
    char name[255];
883
1104
    int ret, pad_idx = 0;
884
1104
    int64_t tsoffset = 0;
885
886
1104
    if (ist->dec_ctx->codec_type != AVMEDIA_TYPE_AUDIO) {
887
        av_log(NULL, AV_LOG_ERROR, "Cannot connect audio filter to non audio input\n");
888
        return AVERROR(EINVAL);
889
    }
890
891
1104
    av_bprint_init(&args, 0, AV_BPRINT_SIZE_AUTOMATIC);
892
1104
    av_bprintf(&args, "time_base=%d/%d:sample_rate=%d:sample_fmt=%s",
893
             1, ifilter->sample_rate,
894
             ifilter->sample_rate,
895
1104
             av_get_sample_fmt_name(ifilter->format));
896
1104
    if (ifilter->channel_layout)
897
1098
        av_bprintf(&args, ":channel_layout=0x%"PRIx64,
898
                   ifilter->channel_layout);
899
    else
900
6
        av_bprintf(&args, ":channels=%d", ifilter->channels);
901
1104
    snprintf(name, sizeof(name), "graph_%d_in_%d_%d", fg->index,
902
1104
             ist->file_index, ist->st->index);
903
904
1104
    if ((ret = avfilter_graph_create_filter(&ifilter->filter, abuffer_filt,
905
1104
                                            name, args.str, NULL,
906
                                            fg->graph)) < 0)
907
        return ret;
908
1104
    last_filter = ifilter->filter;
909
910
#define AUTO_INSERT_FILTER_INPUT(opt_name, filter_name, arg) do {                 \
911
    AVFilterContext *filt_ctx;                                              \
912
                                                                            \
913
    av_log(NULL, AV_LOG_INFO, opt_name " is forwarded to lavfi "            \
914
           "similarly to -af " filter_name "=%s.\n", arg);                  \
915
                                                                            \
916
    snprintf(name, sizeof(name), "graph_%d_%s_in_%d_%d",      \
917
                fg->index, filter_name, ist->file_index, ist->st->index);   \
918
    ret = avfilter_graph_create_filter(&filt_ctx,                           \
919
                                       avfilter_get_by_name(filter_name),   \
920
                                       name, arg, NULL, fg->graph);         \
921
    if (ret < 0)                                                            \
922
        return ret;                                                         \
923
                                                                            \
924
    ret = avfilter_link(last_filter, 0, filt_ctx, 0);                       \
925
    if (ret < 0)                                                            \
926
        return ret;                                                         \
927
                                                                            \
928
    last_filter = filt_ctx;                                                 \
929
} while (0)
930
931
1104
    if (audio_sync_method > 0) {
932
        char args[256] = {0};
933
934
        av_strlcatf(args, sizeof(args), "async=%d", audio_sync_method);
935
        if (audio_drift_threshold != 0.1)
936
            av_strlcatf(args, sizeof(args), ":min_hard_comp=%f", audio_drift_threshold);
937
        if (!fg->reconfiguration)
938
            av_strlcatf(args, sizeof(args), ":first_pts=0");
939
        AUTO_INSERT_FILTER_INPUT("-async", "aresample", args);
940
    }
941
942
//     if (ost->audio_channels_mapped) {
943
//         int i;
944
//         AVBPrint pan_buf;
945
//         av_bprint_init(&pan_buf, 256, 8192);
946
//         av_bprintf(&pan_buf, "0x%"PRIx64,
947
//                    av_get_default_channel_layout(ost->audio_channels_mapped));
948
//         for (i = 0; i < ost->audio_channels_mapped; i++)
949
//             if (ost->audio_channels_map[i] != -1)
950
//                 av_bprintf(&pan_buf, ":c%d=c%d", i, ost->audio_channels_map[i]);
951
//         AUTO_INSERT_FILTER_INPUT("-map_channel", "pan", pan_buf.str);
952
//         av_bprint_finalize(&pan_buf, NULL);
953
//     }
954
955
1104
    if (audio_volume != 256) {
956
        char args[256];
957
958
        av_log(NULL, AV_LOG_WARNING, "-vol has been deprecated. Use the volume "
959
               "audio filter instead.\n");
960
961
        snprintf(args, sizeof(args), "%f", audio_volume / 256.);
962
        AUTO_INSERT_FILTER_INPUT("-vol", "volume", args);
963
    }
964
965
1104
    snprintf(name, sizeof(name), "trim for input stream %d:%d",
966
1104
             ist->file_index, ist->st->index);
967
1104
    if (copy_ts) {
968
        tsoffset = f->start_time == AV_NOPTS_VALUE ? 0 : f->start_time;
969
        if (!start_at_zero && f->ctx->start_time != AV_NOPTS_VALUE)
970
            tsoffset += f->ctx->start_time;
971
    }
972

1104
    ret = insert_trim(((f->start_time == AV_NOPTS_VALUE) || !f->accurate_seek) ?
973
                      AV_NOPTS_VALUE : tsoffset, f->recording_time,
974
                      &last_filter, &pad_idx, name);
975
1104
    if (ret < 0)
976
        return ret;
977
978
1104
    if ((ret = avfilter_link(last_filter, 0, in->filter_ctx, in->pad_idx)) < 0)
979
        return ret;
980
981
1104
    return 0;
982
}
983
984
5711
static int configure_input_filter(FilterGraph *fg, InputFilter *ifilter,
985
                                  AVFilterInOut *in)
986
{
987
5711
    if (!ifilter->ist->dec) {
988
        av_log(NULL, AV_LOG_ERROR,
989
               "No decoder for stream #%d:%d, filtering impossible\n",
990
               ifilter->ist->file_index, ifilter->ist->st->index);
991
        return AVERROR_DECODER_NOT_FOUND;
992
    }
993
5711
    switch (avfilter_pad_get_type(in->filter_ctx->input_pads, in->pad_idx)) {
994
4607
    case AVMEDIA_TYPE_VIDEO: return configure_input_video_filter(fg, ifilter, in);
995
1104
    case AVMEDIA_TYPE_AUDIO: return configure_input_audio_filter(fg, ifilter, in);
996
    default: av_assert0(0);
997
    }
998
}
999
1000
5727
static void cleanup_filtergraph(FilterGraph *fg)
1001
{
1002
    int i;
1003
11457
    for (i = 0; i < fg->nb_outputs; i++)
1004
5730
        fg->outputs[i]->filter = (AVFilterContext *)NULL;
1005
11438
    for (i = 0; i < fg->nb_inputs; i++)
1006
5711
        fg->inputs[i]->filter = (AVFilterContext *)NULL;
1007
5727
    avfilter_graph_free(&fg->graph);
1008
5727
}
1009
1010
5727
int configure_filtergraph(FilterGraph *fg)
1011
{
1012
    AVFilterInOut *inputs, *outputs, *cur;
1013
5727
    int ret, i, simple = filtergraph_is_simple(fg);
1014
5727
    const char *graph_desc = simple ? fg->outputs[0]->ost->avfilter :
1015
                                      fg->graph_desc;
1016
1017
5727
    cleanup_filtergraph(fg);
1018
5727
    if (!(fg->graph = avfilter_graph_alloc()))
1019
        return AVERROR(ENOMEM);
1020
1021
5727
    if (simple) {
1022
5653
        OutputStream *ost = fg->outputs[0]->ost;
1023
        char args[512];
1024
5653
        AVDictionaryEntry *e = NULL;
1025
1026
5653
        fg->graph->nb_threads = filter_nbthreads;
1027
1028
5653
        args[0] = 0;
1029
14696
        while ((e = av_dict_get(ost->sws_dict, "", e,
1030
                                AV_DICT_IGNORE_SUFFIX))) {
1031
9043
            av_strlcatf(args, sizeof(args), "%s=%s:", e->key, e->value);
1032
        }
1033
5653
        if (strlen(args))
1034
5653
            args[strlen(args)-1] = 0;
1035
5653
        fg->graph->scale_sws_opts = av_strdup(args);
1036
1037
5653
        args[0] = 0;
1038
5705
        while ((e = av_dict_get(ost->swr_opts, "", e,
1039
                                AV_DICT_IGNORE_SUFFIX))) {
1040
52
            av_strlcatf(args, sizeof(args), "%s=%s:", e->key, e->value);
1041
        }
1042
5653
        if (strlen(args))
1043
52
            args[strlen(args)-1] = 0;
1044
5653
        av_opt_set(fg->graph, "aresample_swr_opts", args, 0);
1045
1046
5653
        args[0] = '\0';
1047
5659
        while ((e = av_dict_get(fg->outputs[0]->ost->resample_opts, "", e,
1048
                                AV_DICT_IGNORE_SUFFIX))) {
1049
6
            av_strlcatf(args, sizeof(args), "%s=%s:", e->key, e->value);
1050
        }
1051
5653
        if (strlen(args))
1052
6
            args[strlen(args) - 1] = '\0';
1053
1054
5653
        e = av_dict_get(ost->encoder_opts, "threads", NULL, 0);
1055
5653
        if (e)
1056
3251
            av_opt_set(fg->graph, "threads", e->value, 0);
1057
    } else {
1058
74
        fg->graph->nb_threads = filter_complex_nbthreads;
1059
    }
1060
1061
5727
    if ((ret = avfilter_graph_parse2(fg->graph, graph_desc, &inputs, &outputs)) < 0)
1062
        goto fail;
1063
1064

5727
    if (filter_hw_device || hw_device_ctx) {
1065
        AVBufferRef *device = filter_hw_device ? filter_hw_device->device_ref
1066
                                               : hw_device_ctx;
1067
        for (i = 0; i < fg->graph->nb_filters; i++) {
1068
            fg->graph->filters[i]->hw_device_ctx = av_buffer_ref(device);
1069
            if (!fg->graph->filters[i]->hw_device_ctx) {
1070
                ret = AVERROR(ENOMEM);
1071
                goto fail;
1072
            }
1073
        }
1074
    }
1075
1076


5727
    if (simple && (!inputs || inputs->next || !outputs || outputs->next)) {
1077
        const char *num_inputs;
1078
        const char *num_outputs;
1079
        if (!outputs) {
1080
            num_outputs = "0";
1081
        } else if (outputs->next) {
1082
            num_outputs = ">1";
1083
        } else {
1084
            num_outputs = "1";
1085
        }
1086
        if (!inputs) {
1087
            num_inputs = "0";
1088
        } else if (inputs->next) {
1089
            num_inputs = ">1";
1090
        } else {
1091
            num_inputs = "1";
1092
        }
1093
        av_log(NULL, AV_LOG_ERROR, "Simple filtergraph '%s' was expected "
1094
               "to have exactly 1 input and 1 output."
1095
               " However, it had %s input(s) and %s output(s)."
1096
               " Please adjust, or use a complex filtergraph (-filter_complex) instead.\n",
1097
               graph_desc, num_inputs, num_outputs);
1098
        ret = AVERROR(EINVAL);
1099
        goto fail;
1100
    }
1101
1102
11438
    for (cur = inputs, i = 0; cur; cur = cur->next, i++)
1103
5711
        if ((ret = configure_input_filter(fg, fg->inputs[i], cur)) < 0) {
1104
            avfilter_inout_free(&inputs);
1105
            avfilter_inout_free(&outputs);
1106
            goto fail;
1107
        }
1108
5727
    avfilter_inout_free(&inputs);
1109
1110
11457
    for (cur = outputs, i = 0; cur; cur = cur->next, i++)
1111
5730
        configure_output_filter(fg, fg->outputs[i], cur);
1112
5727
    avfilter_inout_free(&outputs);
1113
1114
5727
    if ((ret = avfilter_graph_config(fg->graph, NULL)) < 0)
1115
        goto fail;
1116
1117
    /* limit the lists of allowed formats to the ones selected, to
1118
     * make sure they stay the same if the filtergraph is reconfigured later */
1119
11457
    for (i = 0; i < fg->nb_outputs; i++) {
1120
5730
        OutputFilter *ofilter = fg->outputs[i];
1121
5730
        AVFilterContext *sink = ofilter->filter;
1122
1123
5730
        ofilter->format = av_buffersink_get_format(sink);
1124
1125
5730
        ofilter->width  = av_buffersink_get_w(sink);
1126
5730
        ofilter->height = av_buffersink_get_h(sink);
1127
1128
5730
        ofilter->sample_rate    = av_buffersink_get_sample_rate(sink);
1129
5730
        ofilter->channel_layout = av_buffersink_get_channel_layout(sink);
1130
    }
1131
1132
5727
    fg->reconfiguration = 1;
1133
1134
11457
    for (i = 0; i < fg->nb_outputs; i++) {
1135
5730
        OutputStream *ost = fg->outputs[i]->ost;
1136
5730
        if (!ost->enc) {
1137
            /* identical to the same check in ffmpeg.c, needed because
1138
               complex filter graphs are initialized earlier */
1139
            av_log(NULL, AV_LOG_ERROR, "Encoder (codec %s) not found for output stream #%d:%d\n",
1140
                     avcodec_get_name(ost->st->codecpar->codec_id), ost->file_index, ost->index);
1141
            ret = AVERROR(EINVAL);
1142
            goto fail;
1143
        }
1144
5730
        if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
1145
1101
            !(ost->enc->capabilities & AV_CODEC_CAP_VARIABLE_FRAME_SIZE))
1146
93
            av_buffersink_set_frame_size(ost->filter->filter,
1147
93
                                         ost->enc_ctx->frame_size);
1148
    }
1149
1150
11438
    for (i = 0; i < fg->nb_inputs; i++) {
1151
5730
        while (av_fifo_size(fg->inputs[i]->frame_queue)) {
1152
            AVFrame *tmp;
1153
19
            av_fifo_generic_read(fg->inputs[i]->frame_queue, &tmp, sizeof(tmp), NULL);
1154
19
            ret = av_buffersrc_add_frame(fg->inputs[i]->filter, tmp);
1155
19
            av_frame_free(&tmp);
1156
19
            if (ret < 0)
1157
                goto fail;
1158
        }
1159
    }
1160
1161
    /* send the EOFs for the finished inputs */
1162
11438
    for (i = 0; i < fg->nb_inputs; i++) {
1163
5711
        if (fg->inputs[i]->eof) {
1164
            ret = av_buffersrc_add_frame(fg->inputs[i]->filter, NULL);
1165
            if (ret < 0)
1166
                goto fail;
1167
        }
1168
    }
1169
1170
    /* process queued up subtitle packets */
1171
11438
    for (i = 0; i < fg->nb_inputs; i++) {
1172
5711
        InputStream *ist = fg->inputs[i]->ist;
1173

5711
        if (ist->sub2video.sub_queue && ist->sub2video.frame) {
1174
            while (av_fifo_size(ist->sub2video.sub_queue)) {
1175
                AVSubtitle tmp;
1176
                av_fifo_generic_read(ist->sub2video.sub_queue, &tmp, sizeof(tmp), NULL);
1177
                sub2video_update(ist, INT64_MIN, &tmp);
1178
                avsubtitle_free(&tmp);
1179
            }
1180
        }
1181
    }
1182
1183
5727
    return 0;
1184
1185
fail:
1186
    cleanup_filtergraph(fg);
1187
    return ret;
1188
}
1189
1190
5707
int ifilter_parameters_from_frame(InputFilter *ifilter, const AVFrame *frame)
1191
{
1192
5707
    av_buffer_unref(&ifilter->hw_frames_ctx);
1193
1194
5707
    ifilter->format = frame->format;
1195
1196
5707
    ifilter->width               = frame->width;
1197
5707
    ifilter->height              = frame->height;
1198
5707
    ifilter->sample_aspect_ratio = frame->sample_aspect_ratio;
1199
1200
5707
    ifilter->sample_rate         = frame->sample_rate;
1201
5707
    ifilter->channels            = frame->channels;
1202
5707
    ifilter->channel_layout      = frame->channel_layout;
1203
1204
5707
    if (frame->hw_frames_ctx) {
1205
        ifilter->hw_frames_ctx = av_buffer_ref(frame->hw_frames_ctx);
1206
        if (!ifilter->hw_frames_ctx)
1207
            return AVERROR(ENOMEM);
1208
    }
1209
1210
5707
    return 0;
1211
}
1212
1213
int ist_in_filtergraph(FilterGraph *fg, InputStream *ist)
1214
{
1215
    int i;
1216
    for (i = 0; i < fg->nb_inputs; i++)
1217
        if (fg->inputs[i]->ist == ist)
1218
            return 1;
1219
    return 0;
1220
}
1221
1222
17094
int filtergraph_is_simple(FilterGraph *fg)
1223
{
1224
17094
    return !fg->graph_desc;
1225
}