libmpdemux/muxer_lavf.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include <string.h>
   4 #include <sys/types.h>
   5 #include <inttypes.h>
   6 #include <limits.h>
   7 #include "config.h"
   8 #include "version.h"
   9 #include "mp_msg.h"
  10 #include "help_mp.h"
  11
  12 #include "aviheader.h"
  13 #include "ms_hdr.h"
  14
  15 #include "stream/stream.h"
  16 #include "muxer.h"
  17 #include "demuxer.h"
  18 #include "stheader.h"
  19 #include "m_option.h"
  20 #ifdef USE_LIBAVFORMAT_SO
  21 #include <ffmpeg/avformat.h>
  22 #else
  23 #include "avformat.h"
  24 #endif
  25 #include "libavutil/avstring.h"
  26
  27 enum PixelFormat imgfmt2pixfmt(int fmt);
  28
  29 extern const struct AVCodecTag *mp_wav_taglists[];
  30 extern const struct AVCodecTag *mp_bmp_taglists[];
  31
  32 extern char *info_name;
  33 extern char *info_artist;
  34 extern char *info_genre;
  35 extern char *info_subject;
  36 extern char *info_copyright;
  37 extern char *info_sourceform;
  38 extern char *info_comment;
  39
  40 typedef struct {
  41         //AVInputFormat *avif;
  42         AVFormatContext *oc;
  43         ByteIOContext *pb;
  44         int audio_streams;
  45         int video_streams;
  46         int64_t last_pts;
  47 } muxer_priv_t;
  48
  49 typedef struct {
  50         int64_t last_pts;
  51         AVStream *avstream;
  52 } muxer_stream_priv_t;
  53
  54 static char *conf_format = NULL;
  55 static int mux_rate= 0;
  56 static int mux_packet_size= 0;
  57 static float mux_preload= 0.5;
  58 static float mux_max_delay= 0.7;
  59
  60 m_option_t lavfopts_conf[] = {
  61         {"format", &(conf_format), CONF_TYPE_STRING, 0, 0, 0, NULL},
  62         {"muxrate", &mux_rate, CONF_TYPE_INT, CONF_RANGE, 0, INT_MAX, NULL},
  63         {"packetsize", &mux_packet_size, CONF_TYPE_INT, CONF_RANGE, 0, INT_MAX, NULL},
  64         {"preload", &mux_preload, CONF_TYPE_FLOAT, CONF_RANGE, 0, INT_MAX, NULL},
  65         {"delay", &mux_max_delay, CONF_TYPE_FLOAT, CONF_RANGE, 0, INT_MAX, NULL},
  66
  67         {NULL, NULL, 0, 0, 0, 0, NULL}
  68 };
  69
  70 static int mp_open(URLContext *h, const char *filename, int flags)
  71 {
  72         return 0;
  73 }
  74
  75 static int mp_close(URLContext *h)
  76 {
  77         return 0;
  78 }
  79
  80
  81 static int mp_read(URLContext *h, unsigned char *buf, int size)
  82 {
  83         mp_msg(MSGT_MUXER, MSGL_WARN, "READ %d\n", size);
  84         return -1;
  85 }
  86
  87 static int mp_write(URLContext *h, unsigned char *buf, int size)
  88 {
  89         muxer_t *muxer = (muxer_t*)h->priv_data;
  90         return stream_write_buffer(muxer->stream, buf, size);
  91 }
  92
  93 static offset_t mp_seek(URLContext *h, offset_t pos, int whence)
  94 {
  95         muxer_t *muxer = (muxer_t*)h->priv_data;
  96         if(whence == SEEK_CUR)
  97         {
  98                 off_t cur = stream_tell(muxer->stream);
  99                 if(cur == -1)
 100                         return -1;
 101                 pos += cur;
 102         }
 103         else if(whence == SEEK_END)
 104         {
 105                 off_t size=0;
 106                 if(stream_control(muxer->stream, STREAM_CTRL_GET_SIZE, &size) == STREAM_UNSUPPORTED || size < pos)
 107                         return -1;
 108                 pos = size - pos;
 109         }
 110         mp_msg(MSGT_MUXER, MSGL_DBG2, "SEEK %"PRIu64"\n", (int64_t)pos);
 111         if(!stream_seek(muxer->stream, pos))
 112                 return -1;
 113         return 0;
 114 }
 115
 116
 117 static URLProtocol mp_protocol = {
 118         "menc",
 119         mp_open,
 120         mp_read,
 121         mp_write,
 122         mp_seek,
 123         mp_close,
 124         NULL
 125 };
 126
 127 static muxer_stream_t* lavf_new_stream(muxer_t *muxer, int type)
 128 {
 129         muxer_priv_t *priv = muxer->priv;
 130         muxer_stream_t *stream;
 131         muxer_stream_priv_t *spriv;
 132         AVCodecContext *ctx;
 133
 134         if(!muxer || (type != MUXER_TYPE_VIDEO && type != MUXER_TYPE_AUDIO))
 135         {
 136                 mp_msg(MSGT_MUXER, MSGL_ERR, "UNKNOW TYPE %d\n", type);
 137                 return NULL;
 138         }
 139
 140         stream = calloc(1, sizeof(muxer_stream_t));
 141         if(!stream)
 142         {
 143                 mp_msg(MSGT_MUXER, MSGL_ERR, "Could not alloc muxer_stream, EXIT\n");
 144                 return NULL;
 145         }
 146         muxer->streams[muxer->avih.dwStreams] = stream;
 147         stream->b_buffer = malloc(2048);
 148         if(!stream->b_buffer)
 149         {
 150                 mp_msg(MSGT_MUXER, MSGL_ERR, "Could not alloc b_buffer, EXIT\n");
 151                 free(stream);
 152                 return NULL;
 153         }
 154         stream->b_buffer_size = 2048;
 155         stream->b_buffer_ptr = 0;
 156         stream->b_buffer_len = 0;
 157
 158         spriv = calloc(1, sizeof(muxer_stream_priv_t));
 159         if(!spriv)
 160         {
 161                 free(stream);
 162                 return NULL;
 163         }
 164         stream->priv = spriv;
 165
 166         spriv->avstream = av_new_stream(priv->oc, 1);
 167         if(!spriv->avstream)
 168         {
 169                 mp_msg(MSGT_MUXER, MSGL_ERR, "Could not alloc avstream, EXIT\n");
 170                 return NULL;
 171         }
 172         spriv->avstream->stream_copy = 1;
 173
 174         ctx = spriv->avstream->codec;
 175         ctx->codec_id = muxer->avih.dwStreams;
 176         switch(type)
 177         {
 178                 case MUXER_TYPE_VIDEO:
 179                         ctx->codec_type = CODEC_TYPE_VIDEO;
 180                         break;
 181                 case MUXER_TYPE_AUDIO:
 182                         ctx->codec_type = CODEC_TYPE_AUDIO;
 183                         break;
 184         }
 185
 186         muxer->avih.dwStreams++;
 187         stream->muxer = muxer;
 188         stream->type = type;
 189         mp_msg(MSGT_MUXER, MSGL_V, "ALLOCATED STREAM N. %d, type=%d\n", muxer->avih.dwStreams, type);
 190         return stream;
 191 }
 192
 193
 194 static void fix_parameters(muxer_stream_t *stream)
 195 {
 196         muxer_stream_priv_t *spriv = (muxer_stream_priv_t *) stream->priv;
 197         AVCodecContext *ctx;
 198
 199         ctx = spriv->avstream->codec;
 200
 201         ctx->bit_rate= stream->avg_rate;
 202         if(stream->wf && stream->wf->nAvgBytesPerSec && !ctx->bit_rate)
 203             ctx->bit_rate = stream->wf->nAvgBytesPerSec * 8;
 204         ctx->rc_buffer_size= stream->vbv_size;
 205         ctx->rc_max_rate= stream->max_rate;
 206
 207         if(stream->type == MUXER_TYPE_AUDIO)
 208         {
 209                 ctx->codec_id = av_codec_get_id(mp_wav_taglists, stream->wf->wFormatTag);
 210 #if 0 //breaks aac in mov at least
 211                 ctx->codec_tag = codec_get_wav_tag(ctx->codec_id);
 212 #endif
 213                 mp_msg(MSGT_MUXER, MSGL_INFO, "AUDIO CODEC ID: %x, TAG: %x\n", ctx->codec_id, (uint32_t) ctx->codec_tag);
 214                 ctx->sample_rate = stream->wf->nSamplesPerSec;
 215 //                mp_msg(MSGT_MUXER, MSGL_INFO, "stream->h.dwSampleSize: %d\n", stream->h.dwSampleSize);
 216                 ctx->channels = stream->wf->nChannels;
 217                 if(stream->h.dwRate && (stream->h.dwScale * (int64_t)ctx->sample_rate) % stream->h.dwRate == 0)
 218                     ctx->frame_size= (stream->h.dwScale * (int64_t)ctx->sample_rate) / stream->h.dwRate;
 219                 mp_msg(MSGT_MUXER, MSGL_V, "MUXER_LAVF(audio stream) frame_size: %d, scale: %u, sps: %u, rate: %u, ctx->block_align = stream->wf->nBlockAlign; %d=%d stream->wf->nAvgBytesPerSec:%d\n",
 220                         ctx->frame_size, stream->h.dwScale, ctx->sample_rate, stream->h.dwRate,
 221                         ctx->block_align, stream->wf->nBlockAlign, stream->wf->nAvgBytesPerSec);
 222                 ctx->block_align = stream->h.dwSampleSize;
 223                 if(stream->wf+1 && stream->wf->cbSize)
 224                 {
 225                         ctx->extradata = av_malloc(stream->wf->cbSize);
 226                         if(ctx->extradata != NULL)
 227                         {
 228                                 ctx->extradata_size = stream->wf->cbSize;
 229                                 memcpy(ctx->extradata, stream->wf+1, ctx->extradata_size);
 230                         }
 231                         else
 232                                 mp_msg(MSGT_MUXER, MSGL_ERR, "MUXER_LAVF(audio stream) error! couldn't allocate %d bytes for extradata\n",
 233                                         stream->wf->cbSize);
 234                 }
 235         }
 236         else if(stream->type == MUXER_TYPE_VIDEO)
 237         {
 238                 ctx->codec_id = av_codec_get_id(mp_bmp_taglists, stream->bih->biCompression);
 239                 if(ctx->codec_id <= 0 || force_fourcc)
 240                     ctx->codec_tag= stream->bih->biCompression;
 241                 mp_msg(MSGT_MUXER, MSGL_INFO, "VIDEO CODEC ID: %d\n", ctx->codec_id);
 242                 if (stream->imgfmt)
 243                     ctx->pix_fmt = imgfmt2pixfmt(stream->imgfmt);
 244                 ctx->width = stream->bih->biWidth;
 245                 ctx->height = stream->bih->biHeight;
 246                 ctx->bit_rate = 800000;
 247                 ctx->time_base.den = stream->h.dwRate;
 248                 ctx->time_base.num = stream->h.dwScale;
 249                 if(stream->bih+1 && (stream->bih->biSize > sizeof(BITMAPINFOHEADER)))
 250                 {
 251                         ctx->extradata_size = stream->bih->biSize - sizeof(BITMAPINFOHEADER);
 252                         ctx->extradata = av_malloc(ctx->extradata_size);
 253                         if(ctx->extradata != NULL)
 254                                 memcpy(ctx->extradata, stream->bih+1, ctx->extradata_size);
 255                         else
 256                         {
 257                                 mp_msg(MSGT_MUXER, MSGL_ERR, "MUXER_LAVF(video stream) error! couldn't allocate %d bytes for extradata\n",
 258                                         ctx->extradata_size);
 259                                 ctx->extradata_size = 0;
 260                         }
 261                 }
 262         }
 263 }
 264
 265 static void write_chunk(muxer_stream_t *stream, size_t len, unsigned int flags, double dts, double pts)
 266 {
 267         muxer_t *muxer = (muxer_t*) stream->muxer;
 268         muxer_priv_t *priv = (muxer_priv_t *) muxer->priv;
 269         muxer_stream_priv_t *spriv = (muxer_stream_priv_t *) stream->priv;
 270         AVPacket pkt;
 271
 272         if(len)
 273         {
 274         av_init_packet(&pkt);
 275         pkt.size = len;
 276         pkt.stream_index= spriv->avstream->index;
 277         pkt.data = stream->buffer;
 278
 279         if(flags & AVIIF_KEYFRAME)
 280                 pkt.flags |= PKT_FLAG_KEY;
 281         else
 282                 pkt.flags = 0;
 283
 284         pkt.dts = (dts / av_q2d(priv->oc->streams[pkt.stream_index]->time_base) + 0.5);
 285         pkt.pts = (pts / av_q2d(priv->oc->streams[pkt.stream_index]->time_base) + 0.5);
 286 //fprintf(stderr, "%Ld %Ld id:%d tb:%f %f\n", pkt.dts, pkt.pts, pkt.stream_index, av_q2d(priv->oc->streams[pkt.stream_index]->time_base), stream->timer);
 287
 288         if(av_interleaved_write_frame(priv->oc, &pkt) != 0) //av_write_frame(priv->oc, &pkt)
 289         {
 290                 mp_msg(MSGT_MUXER, MSGL_ERR, "Error while writing frame\n");
 291         }
 292         }
 293
 294         return;
 295 }
 296
 297
 298 static void write_header(muxer_t *muxer)
 299 {
 300         muxer_priv_t *priv = (muxer_priv_t *) muxer->priv;
 301
 302         mp_msg(MSGT_MUXER, MSGL_INFO, MSGTR_WritingHeader);
 303         av_write_header(priv->oc);
 304         muxer->cont_write_header = NULL;
 305 }
 306
 307
 308 static void write_trailer(muxer_t *muxer)
 309 {
 310         int i;
 311         muxer_priv_t *priv = (muxer_priv_t *) muxer->priv;
 312
 313         mp_msg(MSGT_MUXER, MSGL_INFO, MSGTR_WritingTrailer);
 314         av_write_trailer(priv->oc);
 315         for(i = 0; i < priv->oc->nb_streams; i++)
 316         {
 317                 av_freep(&(priv->oc->streams[i]));
 318         }
 319
 320         url_fclose(priv->oc->pb);
 321
 322         av_free(priv->oc);
 323 }
 324
 325 static void list_formats(void) {
 326         AVOutputFormat *fmt;
 327         mp_msg(MSGT_DEMUX, MSGL_INFO, "Available lavf output formats:\n");
 328         for (fmt = first_oformat; fmt; fmt = fmt->next)
 329                 mp_msg(MSGT_DEMUX, MSGL_INFO, "%15s : %s\n", fmt->name, fmt->long_name);
 330 }
 331
 332 extern char *out_filename;
 333 int muxer_init_muxer_lavf(muxer_t *muxer)
 334 {
 335         muxer_priv_t *priv;
 336         AVOutputFormat *fmt = NULL;
 337         char mp_filename[256] = "menc://stream.dummy";
 338
 339         av_register_all();
 340
 341         if (conf_format && strcmp(conf_format, "help") == 0) {
 342                 list_formats();
 343                 return 0;
 344         }
 345
 346         mp_msg(MSGT_MUXER, MSGL_WARN, "** MUXER_LAVF *****************************************************************\n");
 347         mp_msg(MSGT_MUXER, MSGL_WARN,
 348 "REMEMBER: MEncoder's libavformat muxing is presently broken and can generate\n"
 349 "INCORRECT files in the presence of B frames. Moreover, due to bugs MPlayer\n"
 350 "will play these INCORRECT files as if nothing were wrong!\n"
 351 "*******************************************************************************\n");
 352
 353         priv = (muxer_priv_t *) calloc(1, sizeof(muxer_priv_t));
 354         if(priv == NULL)
 355                 return 0;
 356
 357         priv->oc = av_alloc_format_context();
 358         if(!priv->oc)
 359         {
 360                 mp_msg(MSGT_MUXER, MSGL_FATAL, "Couldn't get format context\n");
 361                 goto fail;
 362         }
 363
 364         if(conf_format)
 365                 fmt = guess_format(conf_format, NULL, NULL);
 366         if(! fmt)
 367                 fmt = guess_format(NULL, out_filename, NULL);
 368         if(! fmt)
 369         {
 370                 mp_msg(MSGT_MUXER, MSGL_FATAL, "CAN'T GET SPECIFIED FORMAT\n");
 371                 goto fail;
 372         }
 373         priv->oc->oformat = fmt;
 374
 375
 376         if(av_set_parameters(priv->oc, NULL) < 0)
 377         {
 378                 mp_msg(MSGT_MUXER, MSGL_FATAL, "Invalid output format parameters\n");
 379                 goto fail;
 380         }
 381         priv->oc->packet_size= mux_packet_size;
 382         priv->oc->mux_rate= mux_rate;
 383         priv->oc->preload= (int)(mux_preload*AV_TIME_BASE);
 384         priv->oc->max_delay= (int)(mux_max_delay*AV_TIME_BASE);
 385         if (info_name)
 386             av_strlcpy(priv->oc->title    , info_name,      sizeof(priv->oc->title    ));
 387         if (info_artist)
 388             av_strlcpy(priv->oc->author   , info_artist,    sizeof(priv->oc->author   ));
 389         if (info_genre)
 390             av_strlcpy(priv->oc->genre    , info_genre,     sizeof(priv->oc->genre    ));
 391         if (info_copyright)
 392             av_strlcpy(priv->oc->copyright, info_copyright, sizeof(priv->oc->copyright));
 393         if (info_comment)
 394             av_strlcpy(priv->oc->comment  , info_comment,   sizeof(priv->oc->comment  ));
 395         register_protocol(&mp_protocol);
 396
 397         if(url_fopen(&priv->oc->pb, mp_filename, URL_WRONLY))
 398         {
 399                 mp_msg(MSGT_MUXER, MSGL_FATAL, "Could not open outfile\n");
 400                 goto fail;
 401         }
 402
 403         ((URLContext*)(priv->oc->pb->opaque))->priv_data= muxer;
 404
 405         muxer->priv = (void *) priv;
 406         muxer->cont_new_stream = &lavf_new_stream;
 407         muxer->cont_write_chunk = &write_chunk;
 408         muxer->cont_write_header = &write_header;
 409         muxer->cont_write_index = &write_trailer;
 410         muxer->fix_stream_parameters = &fix_parameters;
 411         mp_msg(MSGT_MUXER, MSGL_INFO, "OK, exit\n");
 412         return 1;
 413
 414 fail:
 415         free(priv);
 416         return 0;
 417 }