GCC Code Coverage Report
Directory: ../../../ffmpeg/ Exec Total Coverage
File: src/fftools/ffmpeg_filter.c Lines: 457 634 72.1 %
Date: 2020-07-11 02:49:52 Branches: 281 474 59.3 %

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
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
3392
enum AVPixelFormat choose_pixel_fmt(AVStream *st, AVCodecContext *enc_ctx, AVCodec *codec, enum AVPixelFormat target)
64
{
65

3392
    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
3383
    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
            const AVCodecDescriptor *desc = avcodec_descriptor_get(codec->id);
103
            if(desc && (desc->props & AV_CODEC_PROP_LOSSLESS) && av_get_sample_fmt_name(st->codecpar->format) > av_get_sample_fmt_name(codec->sample_fmts[0]))
104
                av_log(NULL, AV_LOG_ERROR, "Conversion will not be lossless.\n");
105
            if(av_get_sample_fmt_name(st->codecpar->format))
106
            av_log(NULL, AV_LOG_WARNING,
107
                   "Incompatible sample format '%s' for codec '%s', auto-selecting format '%s'\n",
108
                   av_get_sample_fmt_name(st->codecpar->format),
109
                   codec->name,
110
                   av_get_sample_fmt_name(codec->sample_fmts[0]));
111
            st->codecpar->format = codec->sample_fmts[0];
112
        }
113
    }
114
}
115
116
4697
static char *choose_pix_fmts(OutputFilter *ofilter)
117
{
118
4697
    OutputStream *ost = ofilter->ost;
119
4697
    AVDictionaryEntry *strict_dict = av_dict_get(ost->encoder_opts, "strict", NULL, 0);
120
4697
    if (strict_dict)
121
        // used by choose_pixel_fmt() and below
122
64
        av_opt_set(ost->enc_ctx, "strict", strict_dict->value, 0);
123
124
4697
     if (ost->keep_pix_fmt) {
125
        avfilter_graph_set_auto_convert(ofilter->graph->graph,
126
                                            AVFILTER_AUTO_CONVERT_NONE);
127
        if (ost->enc_ctx->pix_fmt == AV_PIX_FMT_NONE)
128
            return NULL;
129
        return av_strdup(av_get_pix_fmt_name(ost->enc_ctx->pix_fmt));
130
    }
131
4697
    if (ost->enc_ctx->pix_fmt != AV_PIX_FMT_NONE) {
132
3392
        return av_strdup(av_get_pix_fmt_name(choose_pixel_fmt(ost->st, ost->enc_ctx, ost->enc, ost->enc_ctx->pix_fmt)));
133

1305
    } else if (ost->enc && ost->enc->pix_fmts) {
134
        const enum AVPixelFormat *p;
135
290
        AVIOContext *s = NULL;
136
        uint8_t *ret;
137
        int len;
138
139
290
        if (avio_open_dyn_buf(&s) < 0)
140
            exit_program(1);
141
142
290
        p = ost->enc->pix_fmts;
143
290
        if (ost->enc_ctx->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL) {
144
19
            p = get_compliance_unofficial_pix_fmts(ost->enc_ctx->codec_id, p);
145
        }
146
147
1474
        for (; *p != AV_PIX_FMT_NONE; p++) {
148
1184
            const char *name = av_get_pix_fmt_name(*p);
149
1184
            avio_printf(s, "%s|", name);
150
        }
151
290
        len = avio_close_dyn_buf(s, &ret);
152
290
        ret[len - 1] = 0;
153
290
        return ret;
154
    } else
155
1015
        return NULL;
156
}
157
158
/* Define a function for building a string containing a list of
159
 * allowed formats. */
160
#define DEF_CHOOSE_FORMAT(suffix, type, var, supported_list, none, get_name)   \
161
static char *choose_ ## suffix (OutputFilter *ofilter)                         \
162
{                                                                              \
163
    if (ofilter->var != none) {                                                \
164
        get_name(ofilter->var);                                                \
165
        return av_strdup(name);                                                \
166
    } else if (ofilter->supported_list) {                                      \
167
        const type *p;                                                         \
168
        AVIOContext *s = NULL;                                                 \
169
        uint8_t *ret;                                                          \
170
        int len;                                                               \
171
                                                                               \
172
        if (avio_open_dyn_buf(&s) < 0)                                         \
173
            exit_program(1);                                                           \
174
                                                                               \
175
        for (p = ofilter->supported_list; *p != none; p++) {                   \
176
            get_name(*p);                                                      \
177
            avio_printf(s, "%s|", name);                                       \
178
        }                                                                      \
179
        len = avio_close_dyn_buf(s, &ret);                                     \
180
        ret[len - 1] = 0;                                                      \
181
        return ret;                                                            \
182
    } else                                                                     \
183
        return NULL;                                                           \
184
}
185
186
//DEF_CHOOSE_FORMAT(pix_fmts, enum AVPixelFormat, format, formats, AV_PIX_FMT_NONE,
187
//                  GET_PIX_FMT_NAME)
188
189


2266
DEF_CHOOSE_FORMAT(sample_fmts, enum AVSampleFormat, format, formats,
190
                  AV_SAMPLE_FMT_NONE, GET_SAMPLE_FMT_NAME)
191
192


1385
DEF_CHOOSE_FORMAT(sample_rates, int, sample_rate, sample_rates, 0,
193
                  GET_SAMPLE_RATE_NAME)
194
195


1353
DEF_CHOOSE_FORMAT(channel_layouts, uint64_t, channel_layout, channel_layouts, 0,
196
                  GET_CH_LAYOUT_NAME)
197
198
5693
int init_simple_filtergraph(InputStream *ist, OutputStream *ost)
199
{
200
5693
    FilterGraph *fg = av_mallocz(sizeof(*fg));
201
202
5693
    if (!fg)
203
        exit_program(1);
204
5693
    fg->index = nb_filtergraphs;
205
206
5693
    GROW_ARRAY(fg->outputs, fg->nb_outputs);
207
5693
    if (!(fg->outputs[0] = av_mallocz(sizeof(*fg->outputs[0]))))
208
        exit_program(1);
209
5693
    fg->outputs[0]->ost   = ost;
210
5693
    fg->outputs[0]->graph = fg;
211
5693
    fg->outputs[0]->format = -1;
212
213
5693
    ost->filter = fg->outputs[0];
214
215
5693
    GROW_ARRAY(fg->inputs, fg->nb_inputs);
216
5693
    if (!(fg->inputs[0] = av_mallocz(sizeof(*fg->inputs[0]))))
217
        exit_program(1);
218
5693
    fg->inputs[0]->ist   = ist;
219
5693
    fg->inputs[0]->graph = fg;
220
5693
    fg->inputs[0]->format = -1;
221
222
5693
    fg->inputs[0]->frame_queue = av_fifo_alloc(8 * sizeof(AVFrame*));
223
5693
    if (!fg->inputs[0]->frame_queue)
224
        exit_program(1);
225
226
5693
    GROW_ARRAY(ist->filters, ist->nb_filters);
227
5693
    ist->filters[ist->nb_filters - 1] = fg->inputs[0];
228
229
5693
    GROW_ARRAY(filtergraphs, nb_filtergraphs);
230
5693
    filtergraphs[nb_filtergraphs - 1] = fg;
231
232
5693
    return 0;
233
}
234
235
142
static char *describe_filter_link(FilterGraph *fg, AVFilterInOut *inout, int in)
236
{
237
142
    AVFilterContext *ctx = inout->filter_ctx;
238
142
    AVFilterPad *pads = in ? ctx->input_pads  : ctx->output_pads;
239
142
    int       nb_pads = in ? ctx->nb_inputs   : ctx->nb_outputs;
240
    AVIOContext *pb;
241
142
    uint8_t *res = NULL;
242
243
142
    if (avio_open_dyn_buf(&pb) < 0)
244
        exit_program(1);
245
246
142
    avio_printf(pb, "%s", ctx->filter->name);
247
142
    if (nb_pads > 1)
248
45
        avio_printf(pb, ":%s", avfilter_pad_get_name(pads, inout->pad_idx));
249
142
    avio_w8(pb, 0);
250
142
    avio_close_dyn_buf(pb, &res);
251
142
    return res;
252
}
253
254
60
static void init_input_filter(FilterGraph *fg, AVFilterInOut *in)
255
{
256
60
    InputStream *ist = NULL;
257
60
    enum AVMediaType type = avfilter_pad_get_type(in->filter_ctx->input_pads, in->pad_idx);
258
    int i;
259
260
    // TODO: support other filter types
261

60
    if (type != AVMEDIA_TYPE_VIDEO && type != AVMEDIA_TYPE_AUDIO) {
262
        av_log(NULL, AV_LOG_FATAL, "Only video and audio filters supported "
263
               "currently.\n");
264
        exit_program(1);
265
    }
266
267
60
    if (in->name) {
268
        AVFormatContext *s;
269
12
        AVStream       *st = NULL;
270
        char *p;
271
12
        int file_idx = strtol(in->name, &p, 0);
272
273

12
        if (file_idx < 0 || file_idx >= nb_input_files) {
274
            av_log(NULL, AV_LOG_FATAL, "Invalid file index %d in filtergraph description %s.\n",
275
                   file_idx, fg->graph_desc);
276
            exit_program(1);
277
        }
278
12
        s = input_files[file_idx]->ctx;
279
280
16
        for (i = 0; i < s->nb_streams; i++) {
281
16
            enum AVMediaType stream_type = s->streams[i]->codecpar->codec_type;
282

16
            if (stream_type != type &&
283
5
                !(stream_type == AVMEDIA_TYPE_SUBTITLE &&
284
                  type == AVMEDIA_TYPE_VIDEO /* sub2video hack */))
285
2
                continue;
286

14
            if (check_stream_specifier(s, s->streams[i], *p == ':' ? p + 1 : p) == 1) {
287
12
                st = s->streams[i];
288
12
                break;
289
            }
290
        }
291
12
        if (!st) {
292
            av_log(NULL, AV_LOG_FATAL, "Stream specifier '%s' in filtergraph description %s "
293
                   "matches no streams.\n", p, fg->graph_desc);
294
            exit_program(1);
295
        }
296
12
        ist = input_streams[input_files[file_idx]->ist_index + st->index];
297
12
        if (ist->user_set_discard == AVDISCARD_ALL) {
298
            av_log(NULL, AV_LOG_FATAL, "Stream specifier '%s' in filtergraph description %s "
299
                   "matches a disabled input stream.\n", p, fg->graph_desc);
300
            exit_program(1);
301
        }
302
    } else {
303
        /* find the first unused stream of corresponding type */
304
66
        for (i = 0; i < nb_input_streams; i++) {
305
66
            ist = input_streams[i];
306
66
            if (ist->user_set_discard == AVDISCARD_ALL)
307
                continue;
308

66
            if (ist->dec_ctx->codec_type == type && ist->discard)
309
48
                break;
310
        }
311
48
        if (i == nb_input_streams) {
312
            av_log(NULL, AV_LOG_FATAL, "Cannot find a matching stream for "
313
                   "unlabeled input pad %d on filter %s\n", in->pad_idx,
314
                   in->filter_ctx->name);
315
            exit_program(1);
316
        }
317
    }
318
60
    av_assert0(ist);
319
320
60
    ist->discard         = 0;
321
60
    ist->decoding_needed |= DECODING_FOR_FILTER;
322
60
    ist->st->discard = AVDISCARD_NONE;
323
324
60
    GROW_ARRAY(fg->inputs, fg->nb_inputs);
325
60
    if (!(fg->inputs[fg->nb_inputs - 1] = av_mallocz(sizeof(*fg->inputs[0]))))
326
        exit_program(1);
327
60
    fg->inputs[fg->nb_inputs - 1]->ist   = ist;
328
60
    fg->inputs[fg->nb_inputs - 1]->graph = fg;
329
60
    fg->inputs[fg->nb_inputs - 1]->format = -1;
330
60
    fg->inputs[fg->nb_inputs - 1]->type = ist->st->codecpar->codec_type;
331
60
    fg->inputs[fg->nb_inputs - 1]->name = describe_filter_link(fg, in, 1);
332
333
60
    fg->inputs[fg->nb_inputs - 1]->frame_queue = av_fifo_alloc(8 * sizeof(AVFrame*));
334
60
    if (!fg->inputs[fg->nb_inputs - 1]->frame_queue)
335
        exit_program(1);
336
337
60
    GROW_ARRAY(ist->filters, ist->nb_filters);
338
60
    ist->filters[ist->nb_filters - 1] = fg->inputs[fg->nb_inputs - 1];
339
60
}
340
341
79
int init_complex_filtergraph(FilterGraph *fg)
342
{
343
    AVFilterInOut *inputs, *outputs, *cur;
344
    AVFilterGraph *graph;
345
79
    int ret = 0;
346
347
    /* this graph is only used for determining the kinds of inputs
348
     * and outputs we have, and is discarded on exit from this function */
349
79
    graph = avfilter_graph_alloc();
350
79
    if (!graph)
351
        return AVERROR(ENOMEM);
352
79
    graph->nb_threads = 1;
353
354
79
    ret = avfilter_graph_parse2(graph, fg->graph_desc, &inputs, &outputs);
355
79
    if (ret < 0)
356
        goto fail;
357
358
139
    for (cur = inputs; cur; cur = cur->next)
359
60
        init_input_filter(fg, cur);
360
361
161
    for (cur = outputs; cur;) {
362
82
        GROW_ARRAY(fg->outputs, fg->nb_outputs);
363
82
        fg->outputs[fg->nb_outputs - 1] = av_mallocz(sizeof(*fg->outputs[0]));
364
82
        if (!fg->outputs[fg->nb_outputs - 1])
365
            exit_program(1);
366
367
82
        fg->outputs[fg->nb_outputs - 1]->graph   = fg;
368
82
        fg->outputs[fg->nb_outputs - 1]->out_tmp = cur;
369
82
        fg->outputs[fg->nb_outputs - 1]->type    = avfilter_pad_get_type(cur->filter_ctx->output_pads,
370
                                                                         cur->pad_idx);
371
82
        fg->outputs[fg->nb_outputs - 1]->name = describe_filter_link(fg, cur, 0);
372
82
        cur = cur->next;
373
82
        fg->outputs[fg->nb_outputs - 1]->out_tmp->next = NULL;
374
    }
375
376
79
fail:
377
79
    avfilter_inout_free(&inputs);
378
79
    avfilter_graph_free(&graph);
379
79
    return ret;
380
}
381
382
11602
static int insert_trim(int64_t start_time, int64_t duration,
383
                       AVFilterContext **last_filter, int *pad_idx,
384
                       const char *filter_name)
385
{
386
11602
    AVFilterGraph *graph = (*last_filter)->graph;
387
    AVFilterContext *ctx;
388
    const AVFilter *trim;
389
11602
    enum AVMediaType type = avfilter_pad_get_type((*last_filter)->output_pads, *pad_idx);
390
11602
    const char *name = (type == AVMEDIA_TYPE_VIDEO) ? "trim" : "atrim";
391
11602
    int ret = 0;
392
393

11602
    if (duration == INT64_MAX && start_time == AV_NOPTS_VALUE)
394
11429
        return 0;
395
396
173
    trim = avfilter_get_by_name(name);
397
173
    if (!trim) {
398
        av_log(NULL, AV_LOG_ERROR, "%s filter not present, cannot limit "
399
               "recording time.\n", name);
400
        return AVERROR_FILTER_NOT_FOUND;
401
    }
402
403
173
    ctx = avfilter_graph_alloc_filter(graph, trim, filter_name);
404
173
    if (!ctx)
405
        return AVERROR(ENOMEM);
406
407
173
    if (duration != INT64_MAX) {
408
157
        ret = av_opt_set_int(ctx, "durationi", duration,
409
                                AV_OPT_SEARCH_CHILDREN);
410
    }
411

173
    if (ret >= 0 && start_time != AV_NOPTS_VALUE) {
412
16
        ret = av_opt_set_int(ctx, "starti", start_time,
413
                                AV_OPT_SEARCH_CHILDREN);
414
    }
415
173
    if (ret < 0) {
416
        av_log(ctx, AV_LOG_ERROR, "Error configuring the %s filter", name);
417
        return ret;
418
    }
419
420
173
    ret = avfilter_init_str(ctx, NULL);
421
173
    if (ret < 0)
422
        return ret;
423
424
173
    ret = avfilter_link(*last_filter, *pad_idx, ctx, 0);
425
173
    if (ret < 0)
426
        return ret;
427
428
173
    *last_filter = ctx;
429
173
    *pad_idx     = 0;
430
173
    return 0;
431
}
432
433
static int insert_filter(AVFilterContext **last_filter, int *pad_idx,
434
                         const char *filter_name, const char *args)
435
{
436
    AVFilterGraph *graph = (*last_filter)->graph;
437
    AVFilterContext *ctx;
438
    int ret;
439
440
    ret = avfilter_graph_create_filter(&ctx,
441
                                       avfilter_get_by_name(filter_name),
442
                                       filter_name, args, NULL, graph);
443
    if (ret < 0)
444
        return ret;
445
446
    ret = avfilter_link(*last_filter, *pad_idx, ctx, 0);
447
    if (ret < 0)
448
        return ret;
449
450
    *last_filter = ctx;
451
    *pad_idx     = 0;
452
    return 0;
453
}
454
455
4697
static int configure_output_video_filter(FilterGraph *fg, OutputFilter *ofilter, AVFilterInOut *out)
456
{
457
    char *pix_fmts;
458
4697
    OutputStream *ost = ofilter->ost;
459
4697
    OutputFile    *of = output_files[ost->file_index];
460
4697
    AVFilterContext *last_filter = out->filter_ctx;
461
4697
    int pad_idx = out->pad_idx;
462
    int ret;
463
    char name[255];
464
465
4697
    snprintf(name, sizeof(name), "out_%d_%d", ost->file_index, ost->index);
466
4697
    ret = avfilter_graph_create_filter(&ofilter->filter,
467
                                       avfilter_get_by_name("buffersink"),
468
                                       name, NULL, NULL, fg->graph);
469
470
4697
    if (ret < 0)
471
        return ret;
472
473

4697
    if ((ofilter->width || ofilter->height) && ofilter->ost->autoscale) {
474
        char args[255];
475
        AVFilterContext *filter;
476
645
        AVDictionaryEntry *e = NULL;
477
478
645
        snprintf(args, sizeof(args), "%d:%d",
479
                 ofilter->width, ofilter->height);
480
481
1924
        while ((e = av_dict_get(ost->sws_dict, "", e,
482
                                AV_DICT_IGNORE_SUFFIX))) {
483
1279
            av_strlcatf(args, sizeof(args), ":%s=%s", e->key, e->value);
484
        }
485
486
645
        snprintf(name, sizeof(name), "scaler_out_%d_%d",
487
                 ost->file_index, ost->index);
488
645
        if ((ret = avfilter_graph_create_filter(&filter, avfilter_get_by_name("scale"),
489
                                                name, args, NULL, fg->graph)) < 0)
490
            return ret;
491
645
        if ((ret = avfilter_link(last_filter, pad_idx, filter, 0)) < 0)
492
            return ret;
493
494
645
        last_filter = filter;
495
645
        pad_idx = 0;
496
    }
497
498
4697
    if ((pix_fmts = choose_pix_fmts(ofilter))) {
499
        AVFilterContext *filter;
500
3682
        snprintf(name, sizeof(name), "format_out_%d_%d",
501
                 ost->file_index, ost->index);
502
3682
        ret = avfilter_graph_create_filter(&filter,
503
                                           avfilter_get_by_name("format"),
504
                                           "format", pix_fmts, NULL, fg->graph);
505
3682
        av_freep(&pix_fmts);
506
3682
        if (ret < 0)
507
            return ret;
508
3682
        if ((ret = avfilter_link(last_filter, pad_idx, filter, 0)) < 0)
509
            return ret;
510
511
3682
        last_filter = filter;
512
3682
        pad_idx     = 0;
513
    }
514
515
    if (ost->frame_rate.num && 0) {
516
        AVFilterContext *fps;
517
        char args[255];
518
519
        snprintf(args, sizeof(args), "fps=%d/%d", ost->frame_rate.num,
520
                 ost->frame_rate.den);
521
        snprintf(name, sizeof(name), "fps_out_%d_%d",
522
                 ost->file_index, ost->index);
523
        ret = avfilter_graph_create_filter(&fps, avfilter_get_by_name("fps"),
524
                                           name, args, NULL, fg->graph);
525
        if (ret < 0)
526
            return ret;
527
528
        ret = avfilter_link(last_filter, pad_idx, fps, 0);
529
        if (ret < 0)
530
            return ret;
531
        last_filter = fps;
532
        pad_idx = 0;
533
    }
534
535
4697
    snprintf(name, sizeof(name), "trim_out_%d_%d",
536
             ost->file_index, ost->index);
537
4697
    ret = insert_trim(of->start_time, of->recording_time,
538
                      &last_filter, &pad_idx, name);
539
4697
    if (ret < 0)
540
        return ret;
541
542
543
4697
    if ((ret = avfilter_link(last_filter, pad_idx, ofilter->filter, 0)) < 0)
544
        return ret;
545
546
4697
    return 0;
547
}
548
549
1115
static int configure_output_audio_filter(FilterGraph *fg, OutputFilter *ofilter, AVFilterInOut *out)
550
{
551
1115
    OutputStream *ost = ofilter->ost;
552
1115
    OutputFile    *of = output_files[ost->file_index];
553
1115
    AVCodecContext *codec  = ost->enc_ctx;
554
1115
    AVFilterContext *last_filter = out->filter_ctx;
555
1115
    int pad_idx = out->pad_idx;
556
    char *sample_fmts, *sample_rates, *channel_layouts;
557
    char name[255];
558
    int ret;
559
560
1115
    snprintf(name, sizeof(name), "out_%d_%d", ost->file_index, ost->index);
561
1115
    ret = avfilter_graph_create_filter(&ofilter->filter,
562
                                       avfilter_get_by_name("abuffersink"),
563
                                       name, NULL, NULL, fg->graph);
564
1115
    if (ret < 0)
565
        return ret;
566
1115
    if ((ret = av_opt_set_int(ofilter->filter, "all_channel_counts", 1, AV_OPT_SEARCH_CHILDREN)) < 0)
567
        return ret;
568
569
#define AUTO_INSERT_FILTER(opt_name, filter_name, arg) do {                 \
570
    AVFilterContext *filt_ctx;                                              \
571
                                                                            \
572
    av_log(NULL, AV_LOG_INFO, opt_name " is forwarded to lavfi "            \
573
           "similarly to -af " filter_name "=%s.\n", arg);                  \
574
                                                                            \
575
    ret = avfilter_graph_create_filter(&filt_ctx,                           \
576
                                       avfilter_get_by_name(filter_name),   \
577
                                       filter_name, arg, NULL, fg->graph);  \
578
    if (ret < 0)                                                            \
579
        return ret;                                                         \
580
                                                                            \
581
    ret = avfilter_link(last_filter, pad_idx, filt_ctx, 0);                 \
582
    if (ret < 0)                                                            \
583
        return ret;                                                         \
584
                                                                            \
585
    last_filter = filt_ctx;                                                 \
586
    pad_idx = 0;                                                            \
587
} while (0)
588
1115
    if (ost->audio_channels_mapped) {
589
        int i;
590
        AVBPrint pan_buf;
591
6
        av_bprint_init(&pan_buf, 256, 8192);
592
6
        av_bprintf(&pan_buf, "0x%"PRIx64,
593
                   av_get_default_channel_layout(ost->audio_channels_mapped));
594
16
        for (i = 0; i < ost->audio_channels_mapped; i++)
595
10
            if (ost->audio_channels_map[i] != -1)
596
9
                av_bprintf(&pan_buf, "|c%d=c%d", i, ost->audio_channels_map[i]);
597
598

6
        AUTO_INSERT_FILTER("-map_channel", "pan", pan_buf.str);
599
6
        av_bprint_finalize(&pan_buf, NULL);
600
    }
601
602

1115
    if (codec->channels && !codec->channel_layout)
603
12
        codec->channel_layout = av_get_default_channel_layout(codec->channels);
604
605
1115
    sample_fmts     = choose_sample_fmts(ofilter);
606
1115
    sample_rates    = choose_sample_rates(ofilter);
607
1115
    channel_layouts = choose_channel_layouts(ofilter);
608

1115
    if (sample_fmts || sample_rates || channel_layouts) {
609
        AVFilterContext *format;
610
        char args[256];
611
1115
        args[0] = 0;
612
613
1115
        if (sample_fmts)
614
1115
            av_strlcatf(args, sizeof(args), "sample_fmts=%s:",
615
                            sample_fmts);
616
1115
        if (sample_rates)
617
61
            av_strlcatf(args, sizeof(args), "sample_rates=%s:",
618
                            sample_rates);
619
1115
        if (channel_layouts)
620
55
            av_strlcatf(args, sizeof(args), "channel_layouts=%s:",
621
                            channel_layouts);
622
623
1115
        av_freep(&sample_fmts);
624
1115
        av_freep(&sample_rates);
625
1115
        av_freep(&channel_layouts);
626
627
1115
        snprintf(name, sizeof(name), "format_out_%d_%d",
628
                 ost->file_index, ost->index);
629
1115
        ret = avfilter_graph_create_filter(&format,
630
                                           avfilter_get_by_name("aformat"),
631
                                           name, args, NULL, fg->graph);
632
1115
        if (ret < 0)
633
            return ret;
634
635
1115
        ret = avfilter_link(last_filter, pad_idx, format, 0);
636
1115
        if (ret < 0)
637
            return ret;
638
639
1115
        last_filter = format;
640
1115
        pad_idx = 0;
641
    }
642
643
    if (audio_volume != 256 && 0) {
644
        char args[256];
645
646
        snprintf(args, sizeof(args), "%f", audio_volume / 256.);
647
        AUTO_INSERT_FILTER("-vol", "volume", args);
648
    }
649
650

1115
    if (ost->apad && of->shortest) {
651
        char args[256];
652
        int i;
653
654
        for (i=0; i<of->ctx->nb_streams; i++)
655
            if (of->ctx->streams[i]->codecpar->codec_type == AVMEDIA_TYPE_VIDEO)
656
                break;
657
658
        if (i<of->ctx->nb_streams) {
659
            snprintf(args, sizeof(args), "%s", ost->apad);
660
            AUTO_INSERT_FILTER("-apad", "apad", args);
661
        }
662
    }
663
664
1115
    snprintf(name, sizeof(name), "trim for output stream %d:%d",
665
             ost->file_index, ost->index);
666
1115
    ret = insert_trim(of->start_time, of->recording_time,
667
                      &last_filter, &pad_idx, name);
668
1115
    if (ret < 0)
669
        return ret;
670
671
1115
    if ((ret = avfilter_link(last_filter, pad_idx, ofilter->filter, 0)) < 0)
672
        return ret;
673
674
1115
    return 0;
675
}
676
677
5812
int configure_output_filter(FilterGraph *fg, OutputFilter *ofilter, AVFilterInOut *out)
678
{
679
5812
    if (!ofilter->ost) {
680
        av_log(NULL, AV_LOG_FATAL, "Filter %s has an unconnected output\n", ofilter->name);
681
        exit_program(1);
682
    }
683
684
5812
    switch (avfilter_pad_get_type(out->filter_ctx->output_pads, out->pad_idx)) {
685
4697
    case AVMEDIA_TYPE_VIDEO: return configure_output_video_filter(fg, ofilter, out);
686
1115
    case AVMEDIA_TYPE_AUDIO: return configure_output_audio_filter(fg, ofilter, out);
687
    default: av_assert0(0);
688
    }
689
}
690
691
5955
void check_filter_outputs(void)
692
{
693
    int i;
694
11727
    for (i = 0; i < nb_filtergraphs; i++) {
695
        int n;
696
11547
        for (n = 0; n < filtergraphs[i]->nb_outputs; n++) {
697
5775
            OutputFilter *output = filtergraphs[i]->outputs[n];
698
5775
            if (!output->ost) {
699
                av_log(NULL, AV_LOG_FATAL, "Filter %s has an unconnected output\n", output->name);
700
                exit_program(1);
701
            }
702
        }
703
    }
704
5955
}
705
706
4
static int sub2video_prepare(InputStream *ist, InputFilter *ifilter)
707
{
708
4
    AVFormatContext *avf = input_files[ist->file_index]->ctx;
709
    int i, w, h;
710
711
    /* Compute the size of the canvas for the subtitles stream.
712
       If the subtitles codecpar has set a size, use it. Otherwise use the
713
       maximum dimensions of the video streams in the same file. */
714
4
    w = ifilter->width;
715
4
    h = ifilter->height;
716

4
    if (!(w && h)) {
717
12
        for (i = 0; i < avf->nb_streams; i++) {
718
8
            if (avf->streams[i]->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) {
719
1
                w = FFMAX(w, avf->streams[i]->codecpar->width);
720
1
                h = FFMAX(h, avf->streams[i]->codecpar->height);
721
            }
722
        }
723

4
        if (!(w && h)) {
724
3
            w = FFMAX(w, 720);
725
3
            h = FFMAX(h, 576);
726
        }
727
4
        av_log(avf, AV_LOG_INFO, "sub2video: using %dx%d canvas\n", w, h);
728
    }
729
4
    ist->sub2video.w = ifilter->width  = w;
730
4
    ist->sub2video.h = ifilter->height = h;
731
732
4
    ifilter->width  = ist->dec_ctx->width  ? ist->dec_ctx->width  : ist->sub2video.w;
733
4
    ifilter->height = ist->dec_ctx->height ? ist->dec_ctx->height : ist->sub2video.h;
734
735
    /* rectangles are AV_PIX_FMT_PAL8, but we have no guarantee that the
736
       palettes for all rectangles are identical or compatible */
737
4
    ifilter->format = AV_PIX_FMT_RGB32;
738
739
4
    ist->sub2video.frame = av_frame_alloc();
740
4
    if (!ist->sub2video.frame)
741
        return AVERROR(ENOMEM);
742
4
    ist->sub2video.last_pts = INT64_MIN;
743
4
    ist->sub2video.end_pts  = INT64_MIN;
744
745
    /* sub2video structure has been (re-)initialized.
746
       Mark it as such so that the system will be
747
       initialized with the first received heartbeat. */
748
4
    ist->sub2video.initialize = 1;
749
750
4
    return 0;
751
}
752
753
4672
static int configure_input_video_filter(FilterGraph *fg, InputFilter *ifilter,
754
                                        AVFilterInOut *in)
755
{
756
    AVFilterContext *last_filter;
757
4672
    const AVFilter *buffer_filt = avfilter_get_by_name("buffer");
758
4672
    InputStream *ist = ifilter->ist;
759
4672
    InputFile     *f = input_files[ist->file_index];
760
4672
    AVRational tb = ist->framerate.num ? av_inv_q(ist->framerate) :
761
4649
                                         ist->st->time_base;
762
4672
    AVRational fr = ist->framerate;
763
    AVRational sar;
764
    AVBPrint args;
765
    char name[255];
766
4672
    int ret, pad_idx = 0;
767
4672
    int64_t tsoffset = 0;
768
4672
    AVBufferSrcParameters *par = av_buffersrc_parameters_alloc();
769
770
4672
    if (!par)
771
        return AVERROR(ENOMEM);
772
4672
    memset(par, 0, sizeof(*par));
773
4672
    par->format = AV_PIX_FMT_NONE;
774
775
4672
    if (ist->dec_ctx->codec_type == AVMEDIA_TYPE_AUDIO) {
776
        av_log(NULL, AV_LOG_ERROR, "Cannot connect video filter to audio input\n");
777
        ret = AVERROR(EINVAL);
778
        goto fail;
779
    }
780
781
4672
    if (!fr.num)
782
4649
        fr = av_guess_frame_rate(input_files[ist->file_index]->ctx, ist->st, NULL);
783
784
4672
    if (ist->dec_ctx->codec_type == AVMEDIA_TYPE_SUBTITLE) {
785
4
        ret = sub2video_prepare(ist, ifilter);
786
4
        if (ret < 0)
787
            goto fail;
788
    }
789
790
4672
    sar = ifilter->sample_aspect_ratio;
791
4672
    if(!sar.den)
792
4
        sar = (AVRational){0,1};
793
4672
    av_bprint_init(&args, 0, AV_BPRINT_SIZE_AUTOMATIC);
794
4672
    av_bprintf(&args,
795
             "video_size=%dx%d:pix_fmt=%d:time_base=%d/%d:"
796
             "pixel_aspect=%d/%d",
797
             ifilter->width, ifilter->height, ifilter->format,
798
             tb.num, tb.den, sar.num, sar.den);
799

4672
    if (fr.num && fr.den)
800
4668
        av_bprintf(&args, ":frame_rate=%d/%d", fr.num, fr.den);
801
4672
    snprintf(name, sizeof(name), "graph %d input from stream %d:%d", fg->index,
802
4672
             ist->file_index, ist->st->index);
803
804
805
4672
    if ((ret = avfilter_graph_create_filter(&ifilter->filter, buffer_filt, name,
806
4672
                                            args.str, NULL, fg->graph)) < 0)
807
        goto fail;
808
4672
    par->hw_frames_ctx = ifilter->hw_frames_ctx;
809
4672
    ret = av_buffersrc_parameters_set(ifilter->filter, par);
810
4672
    if (ret < 0)
811
        goto fail;
812
4672
    av_freep(&par);
813
4672
    last_filter = ifilter->filter;
814
815
4672
    if (ist->autorotate) {
816
4672
        double theta = get_rotation(ist->st);
817
818
4672
        if (fabs(theta - 90) < 1.0) {
819
            ret = insert_filter(&last_filter, &pad_idx, "transpose", "clock");
820
4672
        } else if (fabs(theta - 180) < 1.0) {
821
            ret = insert_filter(&last_filter, &pad_idx, "hflip", NULL);
822
            if (ret < 0)
823
                return ret;
824
            ret = insert_filter(&last_filter, &pad_idx, "vflip", NULL);
825
4672
        } else if (fabs(theta - 270) < 1.0) {
826
            ret = insert_filter(&last_filter, &pad_idx, "transpose", "cclock");
827
4672
        } else if (fabs(theta) > 1.0) {
828
            char rotate_buf[64];
829
            snprintf(rotate_buf, sizeof(rotate_buf), "%f*PI/180", theta);
830
            ret = insert_filter(&last_filter, &pad_idx, "rotate", rotate_buf);
831
        }
832
4672
        if (ret < 0)
833
            return ret;
834
    }
835
836
4672
    if (do_deinterlace) {
837
        AVFilterContext *yadif;
838
839
        snprintf(name, sizeof(name), "deinterlace_in_%d_%d",
840
                 ist->file_index, ist->st->index);
841
        if ((ret = avfilter_graph_create_filter(&yadif,
842
                                                avfilter_get_by_name("yadif"),
843
                                                name, "", NULL,
844
                                                fg->graph)) < 0)
845
            return ret;
846
847
        if ((ret = avfilter_link(last_filter, 0, yadif, 0)) < 0)
848
            return ret;
849
850
        last_filter = yadif;
851
    }
852
853
4672
    snprintf(name, sizeof(name), "trim_in_%d_%d",
854
4672
             ist->file_index, ist->st->index);
855
4672
    if (copy_ts) {
856
2
        tsoffset = f->start_time == AV_NOPTS_VALUE ? 0 : f->start_time;
857

2
        if (!start_at_zero && f->ctx->start_time != AV_NOPTS_VALUE)
858
1
            tsoffset += f->ctx->start_time;
859
    }
860

4672
    ret = insert_trim(((f->start_time == AV_NOPTS_VALUE) || !f->accurate_seek) ?
861
                      AV_NOPTS_VALUE : tsoffset, f->recording_time,
862
                      &last_filter, &pad_idx, name);
863
4672
    if (ret < 0)
864
        return ret;
865
866
4672
    if ((ret = avfilter_link(last_filter, 0, in->filter_ctx, in->pad_idx)) < 0)
867
        return ret;
868
4672
    return 0;
869
fail:
870
    av_freep(&par);
871
872
    return ret;
873
}
874
875
1118
static int configure_input_audio_filter(FilterGraph *fg, InputFilter *ifilter,
876
                                        AVFilterInOut *in)
877
{
878
    AVFilterContext *last_filter;
879
1118
    const AVFilter *abuffer_filt = avfilter_get_by_name("abuffer");
880
1118
    InputStream *ist = ifilter->ist;
881
1118
    InputFile     *f = input_files[ist->file_index];
882
    AVBPrint args;
883
    char name[255];
884
1118
    int ret, pad_idx = 0;
885
1118
    int64_t tsoffset = 0;
886
887
1118
    if (ist->dec_ctx->codec_type != AVMEDIA_TYPE_AUDIO) {
888
        av_log(NULL, AV_LOG_ERROR, "Cannot connect audio filter to non audio input\n");
889
        return AVERROR(EINVAL);
890
    }
891
892
1118
    av_bprint_init(&args, 0, AV_BPRINT_SIZE_AUTOMATIC);
893
1118
    av_bprintf(&args, "time_base=%d/%d:sample_rate=%d:sample_fmt=%s",
894
             1, ifilter->sample_rate,
895
             ifilter->sample_rate,
896
1118
             av_get_sample_fmt_name(ifilter->format));
897
1118
    if (ifilter->channel_layout)
898
1112
        av_bprintf(&args, ":channel_layout=0x%"PRIx64,
899
                   ifilter->channel_layout);
900
    else
901
6
        av_bprintf(&args, ":channels=%d", ifilter->channels);
902
1118
    snprintf(name, sizeof(name), "graph_%d_in_%d_%d", fg->index,
903
1118
             ist->file_index, ist->st->index);
904
905
1118
    if ((ret = avfilter_graph_create_filter(&ifilter->filter, abuffer_filt,
906
1118
                                            name, args.str, NULL,
907
                                            fg->graph)) < 0)
908
        return ret;
909
1118
    last_filter = ifilter->filter;
910
911
#define AUTO_INSERT_FILTER_INPUT(opt_name, filter_name, arg) do {                 \
912
    AVFilterContext *filt_ctx;                                              \
913
                                                                            \
914
    av_log(NULL, AV_LOG_INFO, opt_name " is forwarded to lavfi "            \
915
           "similarly to -af " filter_name "=%s.\n", arg);                  \
916
                                                                            \
917
    snprintf(name, sizeof(name), "graph_%d_%s_in_%d_%d",      \
918
                fg->index, filter_name, ist->file_index, ist->st->index);   \
919
    ret = avfilter_graph_create_filter(&filt_ctx,                           \
920
                                       avfilter_get_by_name(filter_name),   \
921
                                       name, arg, NULL, fg->graph);         \
922
    if (ret < 0)                                                            \
923
        return ret;                                                         \
924
                                                                            \
925
    ret = avfilter_link(last_filter, 0, filt_ctx, 0);                       \
926
    if (ret < 0)                                                            \
927
        return ret;                                                         \
928
                                                                            \
929
    last_filter = filt_ctx;                                                 \
930
} while (0)
931
932
1118
    if (audio_sync_method > 0) {
933
        char args[256] = {0};
934
935
        av_strlcatf(args, sizeof(args), "async=%d", audio_sync_method);
936
        if (audio_drift_threshold != 0.1)
937
            av_strlcatf(args, sizeof(args), ":min_hard_comp=%f", audio_drift_threshold);
938
        if (!fg->reconfiguration)
939
            av_strlcatf(args, sizeof(args), ":first_pts=0");
940
        AUTO_INSERT_FILTER_INPUT("-async", "aresample", args);
941
    }
942
943
//     if (ost->audio_channels_mapped) {
944
//         int i;
945
//         AVBPrint pan_buf;
946
//         av_bprint_init(&pan_buf, 256, 8192);
947
//         av_bprintf(&pan_buf, "0x%"PRIx64,
948
//                    av_get_default_channel_layout(ost->audio_channels_mapped));
949
//         for (i = 0; i < ost->audio_channels_mapped; i++)
950
//             if (ost->audio_channels_map[i] != -1)
951
//                 av_bprintf(&pan_buf, ":c%d=c%d", i, ost->audio_channels_map[i]);
952
//         AUTO_INSERT_FILTER_INPUT("-map_channel", "pan", pan_buf.str);
953
//         av_bprint_finalize(&pan_buf, NULL);
954
//     }
955
956
1118
    if (audio_volume != 256) {
957
        char args[256];
958
959
        av_log(NULL, AV_LOG_WARNING, "-vol has been deprecated. Use the volume "
960
               "audio filter instead.\n");
961
962
        snprintf(args, sizeof(args), "%f", audio_volume / 256.);
963
        AUTO_INSERT_FILTER_INPUT("-vol", "volume", args);
964
    }
965
966
1118
    snprintf(name, sizeof(name), "trim for input stream %d:%d",
967
1118
             ist->file_index, ist->st->index);
968
1118
    if (copy_ts) {
969
        tsoffset = f->start_time == AV_NOPTS_VALUE ? 0 : f->start_time;
970
        if (!start_at_zero && f->ctx->start_time != AV_NOPTS_VALUE)
971
            tsoffset += f->ctx->start_time;
972
    }
973

1118
    ret = insert_trim(((f->start_time == AV_NOPTS_VALUE) || !f->accurate_seek) ?
974
                      AV_NOPTS_VALUE : tsoffset, f->recording_time,
975
                      &last_filter, &pad_idx, name);
976
1118
    if (ret < 0)
977
        return ret;
978
979
1118
    if ((ret = avfilter_link(last_filter, 0, in->filter_ctx, in->pad_idx)) < 0)
980
        return ret;
981
982
1118
    return 0;
983
}
984
985
5790
static int configure_input_filter(FilterGraph *fg, InputFilter *ifilter,
986
                                  AVFilterInOut *in)
987
{
988
5790
    if (!ifilter->ist->dec) {
989
        av_log(NULL, AV_LOG_ERROR,
990
               "No decoder for stream #%d:%d, filtering impossible\n",
991
               ifilter->ist->file_index, ifilter->ist->st->index);
992
        return AVERROR_DECODER_NOT_FOUND;
993
    }
994
5790
    switch (avfilter_pad_get_type(in->filter_ctx->input_pads, in->pad_idx)) {
995
4672
    case AVMEDIA_TYPE_VIDEO: return configure_input_video_filter(fg, ifilter, in);
996
1118
    case AVMEDIA_TYPE_AUDIO: return configure_input_audio_filter(fg, ifilter, in);
997
    default: av_assert0(0);
998
    }
999
}
1000
1001
5809
static void cleanup_filtergraph(FilterGraph *fg)
1002
{
1003
    int i;
1004
11621
    for (i = 0; i < fg->nb_outputs; i++)
1005
5812
        fg->outputs[i]->filter = (AVFilterContext *)NULL;
1006
11599
    for (i = 0; i < fg->nb_inputs; i++)
1007
5790
        fg->inputs[i]->filter = (AVFilterContext *)NULL;
1008
5809
    avfilter_graph_free(&fg->graph);
1009
5809
}
1010
1011
5809
int configure_filtergraph(FilterGraph *fg)
1012
{
1013
    AVFilterInOut *inputs, *outputs, *cur;
1014
5809
    int ret, i, simple = filtergraph_is_simple(fg);
1015
5809
    const char *graph_desc = simple ? fg->outputs[0]->ost->avfilter :
1016
                                      fg->graph_desc;
1017
1018
5809
    cleanup_filtergraph(fg);
1019
5809
    if (!(fg->graph = avfilter_graph_alloc()))
1020
        return AVERROR(ENOMEM);
1021
1022
5809
    if (simple) {
1023
5730
        OutputStream *ost = fg->outputs[0]->ost;
1024
        char args[512];
1025
5730
        AVDictionaryEntry *e = NULL;
1026
1027
5730
        fg->graph->nb_threads = filter_nbthreads;
1028
1029
5730
        args[0] = 0;
1030
14915
        while ((e = av_dict_get(ost->sws_dict, "", e,
1031
                                AV_DICT_IGNORE_SUFFIX))) {
1032
9185
            av_strlcatf(args, sizeof(args), "%s=%s:", e->key, e->value);
1033
        }
1034
5730
        if (strlen(args))
1035
5730
            args[strlen(args)-1] = 0;
1036
5730
        fg->graph->scale_sws_opts = av_strdup(args);
1037
1038
5730
        args[0] = 0;
1039
5782
        while ((e = av_dict_get(ost->swr_opts, "", e,
1040
                                AV_DICT_IGNORE_SUFFIX))) {
1041
52
            av_strlcatf(args, sizeof(args), "%s=%s:", e->key, e->value);
1042
        }
1043
5730
        if (strlen(args))
1044
52
            args[strlen(args)-1] = 0;
1045
5730
        av_opt_set(fg->graph, "aresample_swr_opts", args, 0);
1046
1047
5730
        args[0] = '\0';
1048
5736
        while ((e = av_dict_get(fg->outputs[0]->ost->resample_opts, "", e,
1049
                                AV_DICT_IGNORE_SUFFIX))) {
1050
6
            av_strlcatf(args, sizeof(args), "%s=%s:", e->key, e->value);
1051
        }
1052
5730
        if (strlen(args))
1053
6
            args[strlen(args) - 1] = '\0';
1054
1055
5730
        e = av_dict_get(ost->encoder_opts, "threads", NULL, 0);
1056
5730
        if (e)
1057
3312
            av_opt_set(fg->graph, "threads", e->value, 0);
1058
    } else {
1059
79
        fg->graph->nb_threads = filter_complex_nbthreads;
1060
    }
1061
1062
5809
    if ((ret = avfilter_graph_parse2(fg->graph, graph_desc, &inputs, &outputs)) < 0)
1063
        goto fail;
1064
1065
5809
    ret = hw_device_setup_for_filter(fg);
1066
5809
    if (ret < 0)
1067
        goto fail;
1068
1069


5809
    if (simple && (!inputs || inputs->next || !outputs || outputs->next)) {
1070
        const char *num_inputs;
1071
        const char *num_outputs;
1072
        if (!outputs) {
1073
            num_outputs = "0";
1074
        } else if (outputs->next) {
1075
            num_outputs = ">1";
1076
        } else {
1077
            num_outputs = "1";
1078
        }
1079
        if (!inputs) {
1080
            num_inputs = "0";
1081
        } else if (inputs->next) {
1082
            num_inputs = ">1";
1083
        } else {
1084
            num_inputs = "1";
1085
        }
1086
        av_log(NULL, AV_LOG_ERROR, "Simple filtergraph '%s' was expected "
1087
               "to have exactly 1 input and 1 output."
1088
               " However, it had %s input(s) and %s output(s)."
1089
               " Please adjust, or use a complex filtergraph (-filter_complex) instead.\n",
1090
               graph_desc, num_inputs, num_outputs);
1091
        ret = AVERROR(EINVAL);
1092
        goto fail;
1093
    }
1094
1095
11599
    for (cur = inputs, i = 0; cur; cur = cur->next, i++)
1096
5790
        if ((ret = configure_input_filter(fg, fg->inputs[i], cur)) < 0) {
1097
            avfilter_inout_free(&inputs);
1098
            avfilter_inout_free(&outputs);
1099
            goto fail;
1100
        }
1101
5809
    avfilter_inout_free(&inputs);
1102
1103
11621
    for (cur = outputs, i = 0; cur; cur = cur->next, i++)
1104
5812
        configure_output_filter(fg, fg->outputs[i], cur);
1105
5809
    avfilter_inout_free(&outputs);
1106
1107
5809
    if ((ret = avfilter_graph_config(fg->graph, NULL)) < 0)
1108
        goto fail;
1109
1110
    /* limit the lists of allowed formats to the ones selected, to
1111
     * make sure they stay the same if the filtergraph is reconfigured later */
1112
11621
    for (i = 0; i < fg->nb_outputs; i++) {
1113
5812
        OutputFilter *ofilter = fg->outputs[i];
1114
5812
        AVFilterContext *sink = ofilter->filter;
1115
1116
5812
        ofilter->format = av_buffersink_get_format(sink);
1117
1118
5812
        ofilter->width  = av_buffersink_get_w(sink);
1119
5812
        ofilter->height = av_buffersink_get_h(sink);
1120
1121
5812
        ofilter->sample_rate    = av_buffersink_get_sample_rate(sink);
1122
5812
        ofilter->channel_layout = av_buffersink_get_channel_layout(sink);
1123
    }
1124
1125
5809
    fg->reconfiguration = 1;
1126
1127
11621
    for (i = 0; i < fg->nb_outputs; i++) {
1128
5812
        OutputStream *ost = fg->outputs[i]->ost;
1129
5812
        if (!ost->enc) {
1130
            /* identical to the same check in ffmpeg.c, needed because
1131
               complex filter graphs are initialized earlier */
1132
            av_log(NULL, AV_LOG_ERROR, "Encoder (codec %s) not found for output stream #%d:%d\n",
1133
                     avcodec_get_name(ost->st->codecpar->codec_id), ost->file_index, ost->index);
1134
            ret = AVERROR(EINVAL);
1135
            goto fail;
1136
        }
1137
5812
        if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
1138
1115
            !(ost->enc->capabilities & AV_CODEC_CAP_VARIABLE_FRAME_SIZE))
1139
97
            av_buffersink_set_frame_size(ost->filter->filter,
1140
97
                                         ost->enc_ctx->frame_size);
1141
    }
1142
1143
11599
    for (i = 0; i < fg->nb_inputs; i++) {
1144
5809
        while (av_fifo_size(fg->inputs[i]->frame_queue)) {
1145
            AVFrame *tmp;
1146
19
            av_fifo_generic_read(fg->inputs[i]->frame_queue, &tmp, sizeof(tmp), NULL);
1147
19
            ret = av_buffersrc_add_frame(fg->inputs[i]->filter, tmp);
1148
19
            av_frame_free(&tmp);
1149
19
            if (ret < 0)
1150
                goto fail;
1151
        }
1152
    }
1153
1154
    /* send the EOFs for the finished inputs */
1155
11599
    for (i = 0; i < fg->nb_inputs; i++) {
1156
5790
        if (fg->inputs[i]->eof) {
1157
1
            ret = av_buffersrc_add_frame(fg->inputs[i]->filter, NULL);
1158
1
            if (ret < 0)
1159
                goto fail;
1160
        }
1161
    }
1162
1163
    /* process queued up subtitle packets */
1164
11599
    for (i = 0; i < fg->nb_inputs; i++) {
1165
5790
        InputStream *ist = fg->inputs[i]->ist;
1166

5790
        if (ist->sub2video.sub_queue && ist->sub2video.frame) {
1167
            while (av_fifo_size(ist->sub2video.sub_queue)) {
1168
                AVSubtitle tmp;
1169
                av_fifo_generic_read(ist->sub2video.sub_queue, &tmp, sizeof(tmp), NULL);
1170
                sub2video_update(ist, INT64_MIN, &tmp);
1171
                avsubtitle_free(&tmp);
1172
            }
1173
        }
1174
    }
1175
1176
5809
    return 0;
1177
1178
fail:
1179
    cleanup_filtergraph(fg);
1180
    return ret;
1181
}
1182
1183
5785
int ifilter_parameters_from_frame(InputFilter *ifilter, const AVFrame *frame)
1184
{
1185
5785
    av_buffer_unref(&ifilter->hw_frames_ctx);
1186
1187
5785
    ifilter->format = frame->format;
1188
1189
5785
    ifilter->width               = frame->width;
1190
5785
    ifilter->height              = frame->height;
1191
5785
    ifilter->sample_aspect_ratio = frame->sample_aspect_ratio;
1192
1193
5785
    ifilter->sample_rate         = frame->sample_rate;
1194
5785
    ifilter->channels            = frame->channels;
1195
5785
    ifilter->channel_layout      = frame->channel_layout;
1196
1197
5785
    if (frame->hw_frames_ctx) {
1198
        ifilter->hw_frames_ctx = av_buffer_ref(frame->hw_frames_ctx);
1199
        if (!ifilter->hw_frames_ctx)
1200
            return AVERROR(ENOMEM);
1201
    }
1202
1203
5785
    return 0;
1204
}
1205
1206
int ist_in_filtergraph(FilterGraph *fg, InputStream *ist)
1207
{
1208
    int i;
1209
    for (i = 0; i < fg->nb_inputs; i++)
1210
        if (fg->inputs[i]->ist == ist)
1211
            return 1;
1212
    return 0;
1213
}
1214
1215
17337
int filtergraph_is_simple(FilterGraph *fg)
1216
{
1217
17337
    return !fg->graph_desc;
1218
}