ff-save.c 26.6 KB
Newer Older
1 2 3 4 5
/* This file is an image processing operation for GEGL
 *
 * GEGL is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
6
 * version 3 of the License, or (at your option) any later version.
7 8 9 10 11 12 13
 *
 * GEGL is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
14
 * License along with GEGL; if not, see <http://www.gnu.org/licenses/>.
15
 *
16
 * Copyright 2003,2004,2007, 2015 Øyvind Kolås <pippin@gimp.org>
17
 */
18 19

#include "config.h"
Martin Nordholts's avatar
Martin Nordholts committed
20 21 22

#include <stdlib.h>

23 24
#include <glib/gi18n-lib.h>

25
#ifdef GEGL_PROPERTIES
26

27
property_string (path, _("File"), "/tmp/fnord.ogv")
28
    description (_("Target path and filename, use '-' for stdout."))
29

30 31
property_audio_fragment (audio, _("audio"), 0)
property_string (audio_codec, _("Audio codec"), "auto")
32 33 34
property_int (audio_sample_rate, _("audio sample rate"), -1)
    description (_("-1 means autodetect on first audio fragment"))

35 36 37
property_int (audio_bit_rate, _("audio bitrate in kb/s"), 64)
    description (_("Target encoded video bitrate in kb/s"))

38 39
property_double (frame_rate, _("Frames/second"), 25.0)
    value_range (0.0, 100.0)
40

41
property_string (video_codec, _("Video codec"), "auto")
42 43 44 45 46 47 48 49
property_int (video_bit_rate, _("video bitrate in kb/s"), 128)
    description (_("Target encoded video bitrate in kb/s"))

property_int (global_quality, _("global quality"), 0)
property_int (noise_reduction, _("noise reduction"), 0)
property_int (scenechange_threshold, _("scenechange threshold"), 0)
property_int (video_bit_rate_min, _("video bitrate min"), 0)
property_int (video_bit_rate_max, _("video bitrate max"), 0)
50
property_int (video_bit_rate_tolerance, _("video bitrate tolerance"), -1)
51 52 53

property_int (keyint_min, _("keyint-min"), 0)
property_int (trellis, _("trellis"), 0)
54
property_int (bufsize, _("bufsize"), 0)
55 56 57 58 59 60 61 62 63 64 65
property_int (qmin, _("qmin"), 0)
property_int (qmax, _("qmax"), 0)
property_int (max_qdiff, _("max_qdiff"), 0)
property_int (me_range, _("me_range"), 0)
property_int (max_b_frames, _("max_b_frames"), 0)
property_int (gop_size, _("gop-size"), 0)
property_double (qcompress, _("qcompress"), 0.0)
property_double (qblur, _("qblur"), 0.0)
property_double (i_quant_factor, _("i-quant-factor"), 0.0)
property_double (i_quant_offset, _("i-quant-offset"), 0.0)
property_int (me_subpel_quality, _("me-subpel-quality"), 0)
66

67

68

69 70
#else

71
#define GEGL_OP_SINK
72
#define GEGL_OP_C_SOURCE ff-save.c
73

74
#include "gegl-op.h"
75

76
#include <libavformat/avformat.h>
77 78 79 80
#include <libavcodec/avcodec.h>
#include <libavutil/avutil.h>
#include <libavutil/opt.h>
#include <libswscale/swscale.h>
81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97

typedef struct
{
  gdouble    frame;
  gdouble    frames;
  gdouble    width;
  gdouble    height;
  GeglBuffer *input;

  AVOutputFormat *fmt;
  AVFormatContext *oc;
  AVStream *video_st;

  AVFrame  *picture, *tmp_picture;
  uint8_t  *video_outbuf;
  int       frame_count, video_outbuf_size;

98 99 100 101
    /** the rest is for audio handling within oxide, note that the interface
     * used passes all used functions in the oxide api through the reg_sym api
     * of gggl, this means that the ops should be usable by other applications
     * using gggl directly,. without needing to link with the oxide library
102 103 104 105 106 107 108 109 110
     */
  AVStream *audio_st;

  uint32_t  sample_rate;
  uint32_t  bits;
  uint32_t  channels;
  uint32_t  fragment_samples;
  uint32_t  fragment_size;

111
  int       bufsize;
112 113
  int       buffer_read_pos;
  int       buffer_write_pos;
114 115
  uint8_t  *buffer; 
                   
116 117
  int       audio_outbuf_size;
  int16_t  *samples;
118

119 120 121
  GList    *audio_track;
  long      audio_pos;
  long      audio_read_pos;
122 123
  
  int       next_apts;
124 125
} Priv;

126 127 128 129 130 131
static void
clear_audio_track (GeglProperties *o)
{
  Priv *p = (Priv*)o->user_data;
  while (p->audio_track)
    {
132
      g_object_unref (p->audio_track->data);
133 134 135 136 137 138 139 140 141 142
      p->audio_track = g_list_remove (p->audio_track, p->audio_track->data);
    }
}

static void get_sample_data (Priv *p, long sample_no, float *left, float *right)
{
  int to_remove = 0;
  GList *l;
  if (sample_no < 0)
    return;
143
  for (l = p->audio_track; l; l = l->next)
144
  {
145
    GeglAudioFragment *af = l->data;
146 147 148
    int channels = gegl_audio_fragment_get_channels (af);
    int pos = gegl_audio_fragment_get_pos (af);
    int sample_count = gegl_audio_fragment_get_sample_count (af);
149
    if (sample_no > pos + sample_count)
150 151 152 153
    {
      to_remove ++;
    }

154 155
    if (pos <= sample_no &&
        sample_no < pos + sample_count)
156
      {
157
        int i = sample_no - pos;
158
        *left  = af->data[0][i];
159
        if (channels == 1)
160 161 162 163 164 165 166 167 168
          *right = af->data[0][i];
        else
          *right = af->data[1][i];

	if (to_remove)  /* consuming audiotrack */
        {
          again:
          for (l = p->audio_track; l; l = l->next)
          {
169
            GeglAudioFragment *af = l->data;
170 171
            int pos = gegl_audio_fragment_get_pos (af);
            int sample_count = gegl_audio_fragment_get_sample_count (af);
172
            if (sample_no > pos + sample_count)
173 174
            {
              p->audio_track = g_list_remove (p->audio_track, af);
175
              g_object_unref (af);
176 177 178 179 180 181 182 183 184 185
              goto again;
            }
          }
        }
        return;
      }
  }
  *left  = 0;
  *right = 0;
}
186

Kevin Cozens's avatar
Kevin Cozens committed
187
static void
188
init (GeglProperties *o)
189
{
Kevin Cozens's avatar
Kevin Cozens committed
190
  static gint inited = 0; /*< this is actually meant to be static, only to be done once */
191
  Priv       *p = (Priv*)o->user_data;
Kevin Cozens's avatar
Kevin Cozens committed
192 193

  if (p == NULL)
194
    {
Kevin Cozens's avatar
Kevin Cozens committed
195
      p = g_new0 (Priv, 1);
196
      o->user_data = (void*) p;
197 198 199 200 201 202 203 204 205
    }

  if (!inited)
    {
      av_register_all ();
      avcodec_register_all ();
      inited = 1;
    }

206 207 208
  clear_audio_track (o);
  p->audio_pos = 0;
  p->audio_read_pos = 0;
209

210
  o->audio_sample_rate = -1; /* only do this if it hasn't been manually set? */
211 212
}

Kevin Cozens's avatar
Kevin Cozens committed
213 214 215 216 217 218
static void close_video       (Priv            *p,
                               AVFormatContext *oc,
                               AVStream        *st);
void        close_audio       (Priv            *p,
                               AVFormatContext *oc,
                               AVStream        *st);
219 220
static int  tfile             (GeglProperties  *o);
static void write_video_frame (GeglProperties  *o,
Kevin Cozens's avatar
Kevin Cozens committed
221 222
                               AVFormatContext *oc,
                               AVStream        *st);
223
static void write_audio_frame (GeglProperties      *o,
Kevin Cozens's avatar
Kevin Cozens committed
224 225
                               AVFormatContext *oc,
                               AVStream        *st);
226 227 228

#define STREAM_FRAME_RATE 25    /* 25 images/s */

229
#ifndef DISABLE_AUDIO
230 231
/* add an audio output stream */
static AVStream *
232
add_audio_stream (GeglProperties *o, AVFormatContext * oc, int codec_id)
233 234 235 236
{
  AVCodecContext *c;
  AVStream *st;

237
  st = avformat_new_stream (oc, NULL);
238 239 240 241 242 243 244 245
  if (!st)
    {
      fprintf (stderr, "Could not alloc stream\n");
      exit (1);
    }

  c = st->codec;
  c->codec_id = codec_id;
246
  c->codec_type = AVMEDIA_TYPE_AUDIO;
247

248 249 250
  if (oc->oformat->flags & AVFMT_GLOBALHEADER)
    c->flags |= CODEC_FLAG_GLOBAL_HEADER;

251 252
  return st;
}
253
#endif
254 255

static void
256
open_audio (GeglProperties *o, AVFormatContext * oc, AVStream * st)
257 258 259
{
  AVCodecContext *c;
  AVCodec  *codec;
260
  int i;
261 262 263 264 265 266 267 268 269 270

  c = st->codec;

  /* find the audio encoder */
  codec = avcodec_find_encoder (c->codec_id);
  if (!codec)
    {
      fprintf (stderr, "codec not found\n");
      exit (1);
    }
271
  c->bit_rate = o->audio_bit_rate * 1000;
272 273
  c->sample_fmt = codec->sample_fmts ? codec->sample_fmts[0] : AV_SAMPLE_FMT_FLTP;

274
  if (o->audio_sample_rate == -1)
275 276 277
  {
    if (o->audio)
    {
278
      if (gegl_audio_fragment_get_sample_rate (o->audio) == 0)
279
      {
280
        gegl_audio_fragment_set_sample_rate (o->audio, 48000); // XXX: should skip adding audiostream instead
281
      }
282
      o->audio_sample_rate = gegl_audio_fragment_get_sample_rate (o->audio);
283 284
    }
  }
285
  c->sample_rate = o->audio_sample_rate;
286 287 288
  c->channel_layout = AV_CH_LAYOUT_STEREO;
  c->channels = 2;

289

290 291 292 293
  if (codec->supported_samplerates)
  {
    c->sample_rate = codec->supported_samplerates[0];
    for (i = 0; codec->supported_samplerates[i]; i++)
294
    {
295 296
      if (codec->supported_samplerates[i] == o->audio_sample_rate)
         c->sample_rate = o->audio_sample_rate;
297
    }
298
  }
299
  //st->time_base = (AVRational){1, c->sample_rate};
300
  st->time_base = (AVRational){1, o->audio_sample_rate};
301 302

  c->strict_std_compliance = FF_COMPLIANCE_EXPERIMENTAL; // ffmpeg AAC is not quite stable yet
303 304

  /* open it */
305
  if (avcodec_open2 (c, codec, NULL) < 0)
306 307 308 309 310 311
    {
      fprintf (stderr, "could not open codec\n");
      exit (1);
    }
}

312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338
static AVFrame *alloc_audio_frame(enum AVSampleFormat sample_fmt,
                                  uint64_t channel_layout,
                                  int sample_rate, int nb_samples)
{
  AVFrame *frame = av_frame_alloc();
  int ret;

  if (!frame) {
      fprintf(stderr, "Error allocating an audio frame\n");
      exit(1);
  }

  frame->format         = sample_fmt;
  frame->channel_layout = channel_layout;
  frame->sample_rate    = sample_rate;
  frame->nb_samples     = nb_samples;

  if (nb_samples) {
      ret = av_frame_get_buffer(frame, 0);
      if (ret < 0) {
          fprintf(stderr, "Error allocating an audio buffer\n");
          exit(1);
      }
  }
  return frame;
}

339
void
340
write_audio_frame (GeglProperties *o, AVFormatContext * oc, AVStream * st)
341
{
342
  Priv *p = (Priv*)o->user_data;
343 344 345 346 347 348 349 350
  AVCodecContext *c = st->codec;
  int sample_count = 100000;
  static AVPacket  pkt = { 0 };

  if (pkt.size == 0)
  {
    av_init_packet (&pkt);
  }
351

352 353 354
  /* first we add incoming frames audio samples */
  {
    int i;
355 356 357 358 359
    int sample_count = gegl_audio_fragment_get_sample_count (o->audio);
    GeglAudioFragment *af = gegl_audio_fragment_new (gegl_audio_fragment_get_sample_rate (o->audio),
                                                     gegl_audio_fragment_get_channels (o->audio),
                                                     gegl_audio_fragment_get_channel_layout (o->audio),
                                                     sample_count);
360
    gegl_audio_fragment_set_sample_count (af, sample_count);
361
    for (i = 0; i < sample_count; i++)
362
      {
363 364
        af->data[0][i] = o->audio->data[0][i];
        af->data[1][i] = o->audio->data[1][i];
365
      }
366 367
    gegl_audio_fragment_set_pos (af, p->audio_pos);
    p->audio_pos += sample_count;
368 369 370
    p->audio_track = g_list_append (p->audio_track, af);
  }

371 372 373
  if (!(c->codec->capabilities & AV_CODEC_CAP_VARIABLE_FRAME_SIZE))
    sample_count = c->frame_size;

374
  /* then we encode as much as we can in a loop using the codec frame size */
375

376
  
377
  while (p->audio_pos - p->audio_read_pos > sample_count)
378 379
  {
    long i;
380 381
    int ret;
    int got_packet = 0;
382
    AVFrame *frame = alloc_audio_frame (c->sample_fmt, c->channel_layout,
383
                                        c->sample_rate, sample_count);
384

385 386
    switch (c->sample_fmt) {
      case AV_SAMPLE_FMT_FLT:
387
        for (i = 0; i < sample_count; i++)
388 389 390 391 392 393 394 395
        {
          float left = 0, right = 0;
          get_sample_data (p, i + p->audio_read_pos, &left, &right);
          ((float*)frame->data[0])[c->channels*i+0] = left;
          ((float*)frame->data[0])[c->channels*i+1] = right;
        }
        break;
      case AV_SAMPLE_FMT_FLTP:
396
        for (i = 0; i < sample_count; i++)
397 398 399 400 401 402 403
        {
          float left = 0, right = 0;
          get_sample_data (p, i + p->audio_read_pos, &left, &right);
          ((float*)frame->data[0])[i] = left;
          ((float*)frame->data[1])[i] = right;
        }
        break;
404
      case AV_SAMPLE_FMT_S16:
405
        for (i = 0; i < sample_count; i++)
406 407 408 409 410 411 412
        {
          float left = 0, right = 0;
          get_sample_data (p, i + p->audio_read_pos, &left, &right);
          ((int16_t*)frame->data[0])[c->channels*i+0] = left * (1<<15);
          ((int16_t*)frame->data[0])[c->channels*i+1] = right * (1<<15);
        }
        break;
413
      case AV_SAMPLE_FMT_S32:
414
        for (i = 0; i < sample_count; i++)
415 416 417 418 419 420 421 422
        {
          float left = 0, right = 0;
          get_sample_data (p, i + p->audio_read_pos, &left, &right);
          ((int32_t*)frame->data[0])[c->channels*i+0] = left * (1<<31);
          ((int32_t*)frame->data[0])[c->channels*i+1] = right * (1<<31);
        }
        break;
      case AV_SAMPLE_FMT_S32P:
423
        for (i = 0; i < sample_count; i++)
424 425 426 427 428 429
        {
          float left = 0, right = 0;
          get_sample_data (p, i + p->audio_read_pos, &left, &right);
          ((int32_t*)frame->data[0])[i] = left * (1<<31);
          ((int32_t*)frame->data[1])[i] = right * (1<<31);
        }
430 431
        break;
      case AV_SAMPLE_FMT_S16P:
432
        for (i = 0; i < sample_count; i++)
433 434 435 436 437 438
        {
          float left = 0, right = 0;
          get_sample_data (p, i + p->audio_read_pos, &left, &right);
          ((int16_t*)frame->data[0])[i] = left * (1<<15);
          ((int16_t*)frame->data[1])[i] = right * (1<<15);
        }
439 440 441 442 443
        break;
      default:
        fprintf (stderr, "eeeek unhandled audio format\n");
        break;
    }
444
    frame->pts = p->next_apts;
445
    p->next_apts += sample_count;
446 447 448

    av_frame_make_writable (frame);
    ret = avcodec_encode_audio2 (c, &pkt, frame, &got_packet);
449 450

    av_packet_rescale_ts (&pkt, st->codec->time_base, st->time_base);
451 452 453 454 455
    if (ret < 0) {
      fprintf (stderr, "Error encoding audio frame: %s\n", av_err2str (ret));
    }

    if (got_packet)
456
    {
457 458
      pkt.stream_index = st->index;
      av_interleaved_write_frame (oc, &pkt);
459
      av_free_packet (&pkt);
460 461 462
    }

    av_frame_free (&frame);
463
    p->audio_read_pos += sample_count;
464
  }
465 466 467 468 469 470 471 472 473 474 475
}

void
close_audio (Priv * p, AVFormatContext * oc, AVStream * st)
{
  avcodec_close (st->codec);

}

/* add a video output stream */
static AVStream *
476
add_video_stream (GeglProperties *o, AVFormatContext * oc, int codec_id)
477
{
478
  Priv *p = (Priv*)o->user_data;
479 480 481 482

  AVCodecContext *c;
  AVStream *st;

483
  st = avformat_new_stream (oc, NULL);
484 485
  if (!st)
    {
486
      fprintf (stderr, "Could not alloc stream %p %p %i\n", o, oc, codec_id);
487 488 489 490 491
      exit (1);
    }

  c = st->codec;
  c->codec_id = codec_id;
492
  c->codec_type = AVMEDIA_TYPE_VIDEO;
493
  /* put sample propeters */
494 495 496
  c->bit_rate = o->video_bit_rate * 1000;
  c->rc_min_rate = o->video_bit_rate_min * 1000;
  c->rc_max_rate = o->video_bit_rate_max * 1000;
497 498
  if (o->video_bit_rate_tolerance >= 0)
    c->bit_rate_tolerance = o->video_bit_rate_tolerance * 1000;
499 500 501 502
  /* resolution must be a multiple of two */
  c->width = p->width;
  c->height = p->height;
  /* frames per second */
503
  st->time_base =(AVRational){1000, o->frame_rate * 1000};
504
  c->time_base = st->time_base;
505

506
  c->pix_fmt = AV_PIX_FMT_YUV420P;
507
  
508

509
  if (c->codec_id == AV_CODEC_ID_MPEG2VIDEO)
510
    {
511
      c->max_b_frames = 2;
512
    }
513

514 515
  if (c->codec_id == AV_CODEC_ID_H264)
   {
516 517 518 519
     c->qcompress = 0.6;  // qcomp=0.6
     c->me_range = 16;    // me_range=16
     c->gop_size = 250;   // g=250
     c->max_b_frames = 3; // bf=3
520 521
   }

522 523
  if (o->bufsize)
    c->rc_buffer_size = o->bufsize * 1000;
524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556
  if (o->global_quality)
     c->global_quality = o->global_quality;
  if (o->qcompress != 0.0)
     c->qcompress = o->qcompress;
  if (o->qblur != 0.0)
     c->qblur = o->qblur;
  if (o->max_qdiff != 0)
     c->max_qdiff = o->max_qdiff;
  if (o->me_subpel_quality != 0)
     c->me_subpel_quality = o->me_subpel_quality;
  if (o->i_quant_factor != 0.0)
     c->i_quant_factor = o->i_quant_factor;
  if (o->i_quant_offset != 0.0)
     c->i_quant_offset = o->i_quant_offset;
  if (o->max_b_frames)
    c->max_b_frames = o->max_b_frames;
  if (o->me_range)
    c->me_range = o->me_range;
  if (o->noise_reduction)
    c->noise_reduction = o->noise_reduction;
  if (o->scenechange_threshold)
    c->scenechange_threshold = o->scenechange_threshold;
  if (o->trellis)
    c->trellis = o->trellis;
  if (o->qmin)
    c->qmin = o->qmin;
  if (o->qmax)
    c->qmax = o->qmax;
  if (o->gop_size)
    c->gop_size = o->gop_size;
  if (o->keyint_min)
    c->keyint_min = o->keyint_min;

557 558 559
   if (oc->oformat->flags & AVFMT_GLOBALHEADER)
     c->flags |= CODEC_FLAG_GLOBAL_HEADER;

560 561 562 563 564 565 566 567 568 569 570
  return st;
}


static AVFrame *
alloc_picture (int pix_fmt, int width, int height)
{
  AVFrame  *picture;
  uint8_t  *picture_buf;
  int       size;

571
  picture = av_frame_alloc ();
572 573
  if (!picture)
    return NULL;
574
  size = avpicture_get_size (pix_fmt, width + 1, height + 1);
575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600
  picture_buf = malloc (size);
  if (!picture_buf)
    {
      av_free (picture);
      return NULL;
    }
  avpicture_fill ((AVPicture *) picture, picture_buf, pix_fmt, width, height);
  return picture;
}

static void
open_video (Priv * p, AVFormatContext * oc, AVStream * st)
{
  AVCodec  *codec;
  AVCodecContext *c;

  c = st->codec;

  /* find the video encoder */
  codec = avcodec_find_encoder (c->codec_id);
  if (!codec)
    {
      fprintf (stderr, "codec not found\n");
      exit (1);
    }

601 602 603 604 605 606 607 608 609 610 611
  if (codec->pix_fmts){
    int i = 0;
    c->pix_fmt = codec->pix_fmts[0];
    while (codec->pix_fmts[i] !=-1)
    {
      if (codec->pix_fmts[i] ==  AV_PIX_FMT_RGB24)
         c->pix_fmt = AV_PIX_FMT_RGB24;
      i++;
    }
  }

612
  /* open the codec */
613
  if (avcodec_open2 (c, codec, NULL) < 0)
614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639
    {
      fprintf (stderr, "could not open codec\n");
      exit (1);
    }

  p->video_outbuf = NULL;
  if (!(oc->oformat->flags & AVFMT_RAWPICTURE))
    {
      /* allocate output buffer */
      /* XXX: API change will be done */
      p->video_outbuf_size = 200000;
      p->video_outbuf = malloc (p->video_outbuf_size);
    }

  /* allocate the encoded raw picture */
  p->picture = alloc_picture (c->pix_fmt, c->width, c->height);
  if (!p->picture)
    {
      fprintf (stderr, "Could not allocate picture\n");
      exit (1);
    }

  /* if the output format is not YUV420P, then a temporary YUV420P
     picture is needed too. It is then converted to the required
     output format */
  p->tmp_picture = NULL;
640
  if (c->pix_fmt != AV_PIX_FMT_RGB24)
641
    {
642
      p->tmp_picture = alloc_picture (AV_PIX_FMT_RGB24, c->width, c->height);
643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668
      if (!p->tmp_picture)
        {
          fprintf (stderr, "Could not allocate temporary picture\n");
          exit (1);
        }
    }
}

static void
close_video (Priv * p, AVFormatContext * oc, AVStream * st)
{
  avcodec_close (st->codec);
  av_free (p->picture->data[0]);
  av_free (p->picture);
  if (p->tmp_picture)
    {
      av_free (p->tmp_picture->data[0]);
      av_free (p->tmp_picture);
    }
  av_free (p->video_outbuf);
}

#include "string.h"

/* prepare a dummy image */
static void
669
fill_rgb_image (GeglProperties *o,
Kevin Cozens's avatar
Kevin Cozens committed
670
                AVFrame *pict, int frame_index, int width, int height)
671
{
672
  Priv     *p = (Priv*)o->user_data;
673
  GeglRectangle rect={0,0,width,height};
674
  gegl_buffer_get (p->input, &rect, 1.0, babl_format ("R'G'B' u8"), pict->data[0], GEGL_AUTO_ROWSTRIDE, GEGL_ABYSS_NONE);
675 676 677
}

static void
678
write_video_frame (GeglProperties *o,
Kevin Cozens's avatar
Kevin Cozens committed
679
                   AVFormatContext *oc, AVStream *st)
680
{
681 682
  Priv           *p = (Priv*)o->user_data;
  int             out_size, ret;
683
  AVCodecContext *c;
684
  AVFrame        *picture_ptr;
685 686 687

  c = st->codec;

688
  if (c->pix_fmt != AV_PIX_FMT_RGB24)
689
    {
690
      struct SwsContext *img_convert_ctx;
691
      fill_rgb_image (o, p->tmp_picture, p->frame_count, c->width,
692
                      c->height);
693

694
      img_convert_ctx = sws_getContext(c->width, c->height, AV_PIX_FMT_RGB24,
695
                                       c->width, c->height, c->pix_fmt,
696 697 698 699 700 701 702 703 704
                                       SWS_BICUBIC, NULL, NULL, NULL);

      if (img_convert_ctx == NULL)
        {
          fprintf(stderr, "ff_save: Cannot initialize conversion context.");
        }
      else
        {
          sws_scale(img_convert_ctx,
705
                    (void*)p->tmp_picture->data,
706 707 708 709 710
                    p->tmp_picture->linesize,
                    0,
                    c->height,
                    p->picture->data,
                    p->picture->linesize);
711 712 713
         p->picture->format = c->pix_fmt;
         p->picture->width = c->width;
         p->picture->height = c->height;
714
         sws_freeContext (img_convert_ctx);
715
        }
716 717 718
    }
  else
    {
719
      fill_rgb_image (o, p->picture, p->frame_count, c->width, c->height);
720
    }
721

722
  picture_ptr      = p->picture;
723
  picture_ptr->pts = p->frame_count;
724 725 726 727 728 729 730 731

  if (oc->oformat->flags & AVFMT_RAWPICTURE)
    {
      /* raw video case. The API will change slightly in the near
         future for that */
      AVPacket  pkt;
      av_init_packet (&pkt);

732
      pkt.flags |= AV_PKT_FLAG_KEY;
733 734 735
      pkt.stream_index = st->index;
      pkt.data = (uint8_t *) picture_ptr;
      pkt.size = sizeof (AVPicture);
736 737
      pkt.pts = picture_ptr->pts;
      av_packet_rescale_ts (&pkt, c->time_base, st->time_base);
738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754

      ret = av_write_frame (oc, &pkt);
    }
  else
    {
      /* encode the image */
      out_size =
        avcodec_encode_video (c,
                              p->video_outbuf,
                              p->video_outbuf_size, picture_ptr);

      /* if zero size, it means the image was buffered */
      if (out_size != 0)
        {
          AVPacket  pkt;
          av_init_packet (&pkt);
          if (c->coded_frame->key_frame)
755
            pkt.flags |= AV_PKT_FLAG_KEY;
756 757 758
          pkt.stream_index = st->index;
          pkt.data = p->video_outbuf;
          pkt.size = out_size;
759 760
          pkt.pts = picture_ptr->pts;
          av_packet_rescale_ts (&pkt, c->time_base, st->time_base);
761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777
          /* write the compressed frame in the media file */
          ret = av_write_frame (oc, &pkt);
        }
      else
        {
          ret = 0;
        }
    }
  if (ret != 0)
    {
      fprintf (stderr, "Error while writing video frame\n");
      exit (1);
    }
  p->frame_count++;
}

static int
778
tfile (GeglProperties *o)
779
{
780
  Priv *p = (Priv*)o->user_data;
781

782
  p->fmt = av_guess_format (NULL, o->path, NULL);
783 784 785 786 787
  if (!p->fmt)
    {
      fprintf (stderr,
               "ff_save couldn't deduce outputformat from file extension: using MPEG.\n%s",
               "");
788
      p->fmt = av_guess_format ("mpeg", NULL, NULL);
789
    }
790
  p->oc = avformat_alloc_context ();
791 792 793 794 795 796 797 798
  if (!p->oc)
    {
      fprintf (stderr, "memory error\n%s", "");
      return -1;
    }

  p->oc->oformat = p->fmt;

799
  snprintf (p->oc->filename, sizeof (p->oc->filename), "%s", o->path);
800 801 802

  p->video_st = NULL;
  p->audio_st = NULL;
803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835
  
  if (strcmp (o->video_codec, "auto"))
  {
    AVCodec *codec = avcodec_find_encoder_by_name (o->video_codec);
    p->fmt->video_codec = AV_CODEC_ID_NONE;
    if (codec)
      p->fmt->video_codec = codec->id;
    else
      {
        fprintf (stderr, "didn't find video encoder \"%s\"\navailable codecs: ", o->video_codec);
        while ((codec = av_codec_next (codec)))
          if (av_codec_is_encoder (codec) &&
              avcodec_get_type (codec->id) == AVMEDIA_TYPE_VIDEO)
          fprintf (stderr, "%s ", codec->name);
        fprintf (stderr, "\n");
      }
  }
  if (strcmp (o->audio_codec, "auto"))
  {
    AVCodec *codec = avcodec_find_encoder_by_name (o->audio_codec);
    p->fmt->audio_codec = AV_CODEC_ID_NONE;
    if (codec)
      p->fmt->audio_codec = codec->id;
    else
      {
        fprintf (stderr, "didn't find audio encoder \"%s\"\navailable codecs: ", o->audio_codec);
        while ((codec = av_codec_next (codec)))
          if (av_codec_is_encoder (codec) &&
              avcodec_get_type (codec->id) == AVMEDIA_TYPE_AUDIO)
                fprintf (stderr, "%s ", codec->name);
        fprintf (stderr, "\n");
      }
  }
836

837
  if (p->fmt->video_codec != AV_CODEC_ID_NONE)
838
    {
839
      p->video_st = add_video_stream (o, p->oc, p->fmt->video_codec);
840
    }
841
  if (p->fmt->audio_codec != AV_CODEC_ID_NONE)
842
    {
843
     p->audio_st = add_audio_stream (o, p->oc, p->fmt->audio_codec);
844 845 846 847 848
    }


  if (p->video_st)
    open_video (p, p->oc, p->video_st);
849

850
  if (p->audio_st)
851
    open_audio (o, p->oc, p->audio_st);
852

853 854
  av_dump_format (p->oc, 0, o->path, 1);

855
  if (avio_open (&p->oc->pb, o->path, AVIO_FLAG_WRITE) < 0)
856
    {
857
      fprintf (stderr, "couldn't open '%s'\n", o->path);
858 859 860
      return -1;
    }

861
  avformat_write_header (p->oc, NULL);
862 863 864
  return 0;
}

Kevin Cozens's avatar
Kevin Cozens committed
865 866 867
static gboolean
process (GeglOperation       *operation,
         GeglBuffer          *input,
868 869
         const GeglRectangle *result,
         gint                 level)
Kevin Cozens's avatar
Kevin Cozens committed
870
{
871
  GeglProperties *o = GEGL_PROPERTIES (operation);
872 873
  Priv           *p = (Priv*)o->user_data;
  static gint     inited = 0;
Kevin Cozens's avatar
Kevin Cozens committed
874 875 876 877 878

  g_assert (input);

  if (p == NULL)
    init (o);
879
  p = (Priv*)o->user_data;
Kevin Cozens's avatar
Kevin Cozens committed
880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897

  p->width = result->width;
  p->height = result->height;
  p->input = input;

  if (!inited)
    {
      tfile (o);
      inited = 1;
    }

  write_video_frame (o, p->oc, p->video_st);
  if (p->audio_st)
    write_audio_frame (o, p->oc, p->audio_st);

  return  TRUE;
}

898 899 900 901 902
static void flush_audio (GeglProperties *o)
{
  Priv *p = (Priv*)o->user_data;

  int got_packet;
903 904
  if (!p->audio_st)
    return;
905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946
  do
  {
    AVPacket  pkt = { 0 };
    int ret;
    got_packet = 0;
    av_init_packet (&pkt);
    ret = avcodec_encode_audio2 (p->audio_st->codec, &pkt, NULL, &got_packet);
    if (ret < 0)
      break;
    if (got_packet)
      {
        pkt.stream_index = p->audio_st->index;
        av_packet_rescale_ts (&pkt, p->audio_st->codec->time_base, p->audio_st->time_base);
        av_interleaved_write_frame (p->oc, &pkt);
        av_free_packet (&pkt);
      }
  } while (got_packet);
}

static void flush_video (GeglProperties *o)
{
  Priv *p = (Priv*)o->user_data;
  int got_packet = 0;
  do {
    AVPacket  pkt = { 0 };
    int ret;
    got_packet = 0;
    av_init_packet (&pkt);
    ret = avcodec_encode_video2 (p->video_st->codec, &pkt, NULL, &got_packet);
    if (ret < 0)
      return;
      
     if (got_packet)
     {
       pkt.stream_index = p->video_st->index;
       av_packet_rescale_ts (&pkt, p->video_st->codec->time_base, p->video_st->time_base);
       av_interleaved_write_frame (p->oc, &pkt);
       av_free_packet (&pkt);
     }
  } while (got_packet);
}

Kevin Cozens's avatar
Kevin Cozens committed
947 948 949
static void
finalize (GObject *object)
{
950 951
  GeglProperties *o = GEGL_PROPERTIES (object);
  if (o->user_data)
Kevin Cozens's avatar
Kevin Cozens committed
952
    {
953
      Priv *p = (Priv*)o->user_data;
954 955
      flush_audio (o);
      flush_video (o);
956

957
      av_write_trailer (p->oc);
958

959 960 961 962
      if (p->video_st)
        close_video (p, p->oc, p->video_st);
      if (p->audio_st)
        close_audio (p, p->oc, p->audio_st);
Kevin Cozens's avatar
Kevin Cozens committed
963

964 965
      avio_closep (&p->oc->pb);
      avformat_free_context (p->oc);
966

967 968
      g_free (o->user_data);
      o->user_data = NULL;
Kevin Cozens's avatar
Kevin Cozens committed
969 970 971 972 973 974 975
    }

  G_OBJECT_CLASS (g_type_class_peek_parent (G_OBJECT_GET_CLASS (object)))->finalize (object);
}


static void
976
gegl_op_class_init (GeglOpClass *klass)
Kevin Cozens's avatar
Kevin Cozens committed
977 978 979 980 981 982 983 984 985 986 987 988
{
  GeglOperationClass     *operation_class;
  GeglOperationSinkClass *sink_class;

  G_OBJECT_CLASS (klass)->finalize = finalize;

  operation_class = GEGL_OPERATION_CLASS (klass);
  sink_class      = GEGL_OPERATION_SINK_CLASS (klass);

  sink_class->process = process;
  sink_class->needs_full = TRUE;

989 990 991 992 993
  gegl_operation_class_set_keys (operation_class,
    "name"        , "gegl:ff-save",
    "categories"  , "output:video",
    "description" , _("FFmpeg video output sink"),
    NULL);
Kevin Cozens's avatar
Kevin Cozens committed
994 995
}

996
#endif