libmpdemux/muxer_lavf.c

   1 /*
   2  * This file is part of MPlayer.
   3  *
   4  * MPlayer is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * MPlayer is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along
  15  * with MPlayer; if not, write to the Free Software Foundation, Inc.,
  16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  17  */
  18
  19 #include <stdio.h>
  20 #include <stdlib.h>
  21 #include <string.h>
  22 #include <sys/types.h>
  23 #include <inttypes.h>
  24 #include <limits.h>
  25 #include "config.h"
  26 #include "mp_msg.h"
  27 #include "help_mp.h"
  28
  29 #include "aviheader.h"
  30 #include "ms_hdr.h"
  31 #include "av_opts.h"
  32
  33 #include "stream/stream.h"
  34 #include "muxer.h"
  35 #include "demuxer.h"
  36 #include "stheader.h"
  37 #include "m_option.h"
  38 #include "libavformat/avformat.h"
  39 #include "libavutil/avstring.h"
  40
  41 #include "mp_taglists.h"
  42
  43 enum PixelFormat imgfmt2pixfmt(int fmt);
  44
  45 extern char *info_name;
  46 extern char *info_artist;
  47 extern char *info_genre;
  48 extern char *info_subject;
  49 extern char *info_copyright;
  50 extern char *info_sourceform;
  51 extern char *info_comment;
  52
  53 #define BIO_BUFFER_SIZE 32768
  54
  55 typedef struct {
  56         //AVInputFormat *avif;
  57         AVFormatContext *oc;
  58         ByteIOContext *pb;
  59         int audio_streams;
  60         int video_streams;
  61         int64_t last_pts;
  62         uint8_t buffer[BIO_BUFFER_SIZE];
  63 } muxer_priv_t;
  64
  65 typedef struct {
  66         int64_t last_pts;
  67         AVStream *avstream;
  68 } muxer_stream_priv_t;
  69
  70 static char *conf_format = NULL;
  71 static int mux_rate= 0;
  72 static int mux_packet_size= 0;
  73 static float mux_preload= 0.5;
  74 static float mux_max_delay= 0.7;
  75 static char *mux_avopt = NULL;
  76
  77 m_option_t lavfopts_conf[] = {
  78         {"format", &(conf_format), CONF_TYPE_STRING, 0, 0, 0, NULL},
  79         {"muxrate", &mux_rate, CONF_TYPE_INT, CONF_RANGE, 0, INT_MAX, NULL},
  80         {"packetsize", &mux_packet_size, CONF_TYPE_INT, CONF_RANGE, 0, INT_MAX, NULL},
  81         {"preload", &mux_preload, CONF_TYPE_FLOAT, CONF_RANGE, 0, INT_MAX, NULL},
  82         {"delay", &mux_max_delay, CONF_TYPE_FLOAT, CONF_RANGE, 0, INT_MAX, NULL},
  83         {"o", &mux_avopt, CONF_TYPE_STRING, 0, 0, 0, NULL},
  84
  85         {NULL, NULL, 0, 0, 0, 0, NULL}
  86 };
  87
  88 static int mp_write(void *opaque, uint8_t *buf, int size)
  89 {
  90         muxer_t *muxer = opaque;
  91         return stream_write_buffer(muxer->stream, buf, size);
  92 }
  93
  94 static int64_t mp_seek(void *opaque, int64_t pos, int whence)
  95 {
  96         muxer_t *muxer = opaque;
  97         if(whence == SEEK_CUR)
  98         {
  99                 off_t cur = stream_tell(muxer->stream);
 100                 if(cur == -1)
 101                         return -1;
 102                 pos += cur;
 103         }
 104         else if(whence == SEEK_END)
 105         {
 106                 off_t size=0;
 107                 if(stream_control(muxer->stream, STREAM_CTRL_GET_SIZE, &size) == STREAM_UNSUPPORTED || size < pos)
 108                         return -1;
 109                 pos = size - pos;
 110         }
 111         mp_msg(MSGT_MUXER, MSGL_DBG2, "SEEK %"PRIu64"\n", (int64_t)pos);
 112         if(!stream_seek(muxer->stream, pos))
 113                 return -1;
 114         return 0;
 115 }
 116
 117
 118 static muxer_stream_t* lavf_new_stream(muxer_t *muxer, int type)
 119 {
 120         muxer_priv_t *priv = muxer->priv;
 121         muxer_stream_t *stream;
 122         muxer_stream_priv_t *spriv;
 123         AVCodecContext *ctx;
 124
 125         if(!muxer || (type != MUXER_TYPE_VIDEO && type != MUXER_TYPE_AUDIO))
 126         {
 127                 mp_msg(MSGT_MUXER, MSGL_ERR, "UNKNOWN TYPE %d\n", type);
 128                 return NULL;
 129         }
 130
 131         stream = calloc(1, sizeof(muxer_stream_t));
 132         if(!stream)
 133         {
 134                 mp_msg(MSGT_MUXER, MSGL_ERR, "Could not allocate muxer_stream, EXIT.\n");
 135                 return NULL;
 136         }
 137         muxer->streams[muxer->avih.dwStreams] = stream;
 138         stream->b_buffer = malloc(2048);
 139         if(!stream->b_buffer)
 140         {
 141                 mp_msg(MSGT_MUXER, MSGL_ERR, "Could not allocate b_buffer, EXIT.\n");
 142                 free(stream);
 143                 return NULL;
 144         }
 145         stream->b_buffer_size = 2048;
 146         stream->b_buffer_ptr = 0;
 147         stream->b_buffer_len = 0;
 148
 149         spriv = calloc(1, sizeof(muxer_stream_priv_t));
 150         if(!spriv)
 151         {
 152                 free(stream);
 153                 return NULL;
 154         }
 155         stream->priv = spriv;
 156
 157         spriv->avstream = av_new_stream(priv->oc, 1);
 158         if(!spriv->avstream)
 159         {
 160                 mp_msg(MSGT_MUXER, MSGL_ERR, "Could not allocate avstream, EXIT.\n");
 161                 return NULL;
 162         }
 163         spriv->avstream->stream_copy = 1;
 164
 165         ctx = spriv->avstream->codec;
 166         ctx->codec_id = muxer->avih.dwStreams;
 167         switch(type)
 168         {
 169                 case MUXER_TYPE_VIDEO:
 170                         ctx->codec_type = CODEC_TYPE_VIDEO;
 171                         break;
 172                 case MUXER_TYPE_AUDIO:
 173                         ctx->codec_type = CODEC_TYPE_AUDIO;
 174                         break;
 175         }
 176
 177         muxer->avih.dwStreams++;
 178         stream->muxer = muxer;
 179         stream->type = type;
 180         mp_msg(MSGT_MUXER, MSGL_V, "ALLOCATED STREAM N. %d, type=%d\n", muxer->avih.dwStreams, type);
 181         return stream;
 182 }
 183
 184
 185 static void fix_parameters(muxer_stream_t *stream)
 186 {
 187         muxer_stream_priv_t *spriv = (muxer_stream_priv_t *) stream->priv;
 188         AVCodecContext *ctx;
 189
 190         ctx = spriv->avstream->codec;
 191
 192         ctx->bit_rate= stream->avg_rate;
 193         if(stream->wf && stream->wf->nAvgBytesPerSec && !ctx->bit_rate)
 194             ctx->bit_rate = stream->wf->nAvgBytesPerSec * 8;
 195         ctx->rc_buffer_size= stream->vbv_size;
 196         ctx->rc_max_rate= stream->max_rate;
 197
 198         if(stream->type == MUXER_TYPE_AUDIO)
 199         {
 200                 ctx->codec_id = av_codec_get_id(mp_wav_taglists, stream->wf->wFormatTag);
 201 #if 0 //breaks aac in mov at least
 202                 ctx->codec_tag = codec_get_wav_tag(ctx->codec_id);
 203 #endif
 204                 mp_msg(MSGT_MUXER, MSGL_INFO, "AUDIO CODEC ID: %x, TAG: %x\n", ctx->codec_id, (uint32_t) ctx->codec_tag);
 205                 ctx->sample_rate = stream->wf->nSamplesPerSec;
 206 //                mp_msg(MSGT_MUXER, MSGL_INFO, "stream->h.dwSampleSize: %d\n", stream->h.dwSampleSize);
 207                 ctx->channels = stream->wf->nChannels;
 208                 if(stream->h.dwRate && (stream->h.dwScale * (int64_t)ctx->sample_rate) % stream->h.dwRate == 0)
 209                     ctx->frame_size= (stream->h.dwScale * (int64_t)ctx->sample_rate) / stream->h.dwRate;
 210                 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",
 211                         ctx->frame_size, stream->h.dwScale, ctx->sample_rate, stream->h.dwRate,
 212                         ctx->block_align, stream->wf->nBlockAlign, stream->wf->nAvgBytesPerSec);
 213                 ctx->block_align = stream->h.dwSampleSize;
 214                 if(stream->wf+1 && stream->wf->cbSize)
 215                 {
 216                         ctx->extradata = av_malloc(stream->wf->cbSize);
 217                         if(ctx->extradata != NULL)
 218                         {
 219                                 ctx->extradata_size = stream->wf->cbSize;
 220                                 memcpy(ctx->extradata, stream->wf+1, ctx->extradata_size);
 221                         }
 222                         else
 223                                 mp_msg(MSGT_MUXER, MSGL_ERR, "MUXER_LAVF(audio stream) error! Could not allocate %d bytes for extradata.\n",
 224                                         stream->wf->cbSize);
 225                 }
 226         }
 227         else if(stream->type == MUXER_TYPE_VIDEO)
 228         {
 229                 ctx->codec_id = av_codec_get_id(mp_bmp_taglists, stream->bih->biCompression);
 230                 if(ctx->codec_id <= 0 || force_fourcc)
 231                     ctx->codec_tag= stream->bih->biCompression;
 232                 mp_msg(MSGT_MUXER, MSGL_INFO, "VIDEO CODEC ID: %d\n", ctx->codec_id);
 233                 if (stream->imgfmt)
 234                     ctx->pix_fmt = imgfmt2pixfmt(stream->imgfmt);
 235                 ctx->width = stream->bih->biWidth;
 236                 ctx->height = stream->bih->biHeight;
 237                 ctx->bit_rate = 800000;
 238                 ctx->time_base.den = stream->h.dwRate;
 239                 ctx->time_base.num = stream->h.dwScale;
 240                 if(stream->bih+1 && (stream->bih->biSize > sizeof(BITMAPINFOHEADER)))
 241                 {
 242                         ctx->extradata_size = stream->bih->biSize - sizeof(BITMAPINFOHEADER);
 243                         ctx->extradata = av_malloc(ctx->extradata_size);
 244                         if(ctx->extradata != NULL)
 245                                 memcpy(ctx->extradata, stream->bih+1, ctx->extradata_size);
 246                         else
 247                         {
 248                                 mp_msg(MSGT_MUXER, MSGL_ERR, "MUXER_LAVF(video stream) error! Could not allocate %d bytes for extradata.\n",
 249                                         ctx->extradata_size);
 250                                 ctx->extradata_size = 0;
 251                         }
 252                 }
 253         }
 254 }
 255
 256 static void write_chunk(muxer_stream_t *stream, size_t len, unsigned int flags, double dts, double pts)
 257 {
 258         muxer_t *muxer = (muxer_t*) stream->muxer;
 259         muxer_priv_t *priv = (muxer_priv_t *) muxer->priv;
 260         muxer_stream_priv_t *spriv = (muxer_stream_priv_t *) stream->priv;
 261         AVPacket pkt;
 262
 263         if(len)
 264         {
 265         av_init_packet(&pkt);
 266         pkt.size = len;
 267         pkt.stream_index= spriv->avstream->index;
 268         pkt.data = stream->buffer;
 269
 270         if(flags & AVIIF_KEYFRAME)
 271                 pkt.flags |= PKT_FLAG_KEY;
 272         else
 273                 pkt.flags = 0;
 274
 275         pkt.dts = (dts / av_q2d(priv->oc->streams[pkt.stream_index]->time_base) + 0.5);
 276         pkt.pts = (pts / av_q2d(priv->oc->streams[pkt.stream_index]->time_base) + 0.5);
 277 //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);
 278
 279         if(av_interleaved_write_frame(priv->oc, &pkt) != 0) //av_write_frame(priv->oc, &pkt)
 280         {
 281                 mp_msg(MSGT_MUXER, MSGL_ERR, "Error while writing frame.\n");
 282         }
 283         }
 284
 285         return;
 286 }
 287
 288
 289 static void write_header(muxer_t *muxer)
 290 {
 291         muxer_priv_t *priv = (muxer_priv_t *) muxer->priv;
 292
 293         mp_tmsg(MSGT_MUXER, MSGL_INFO, "Writing header...\n");
 294         av_write_header(priv->oc);
 295         muxer->cont_write_header = NULL;
 296 }
 297
 298
 299 static void write_trailer(muxer_t *muxer)
 300 {
 301         int i;
 302         muxer_priv_t *priv = (muxer_priv_t *) muxer->priv;
 303
 304         mp_tmsg(MSGT_MUXER, MSGL_INFO, "Writing index...\n");
 305         av_write_trailer(priv->oc);
 306         for(i = 0; i < priv->oc->nb_streams; i++)
 307         {
 308                 av_freep(&(priv->oc->streams[i]));
 309         }
 310
 311         av_freep(&priv->oc->pb);
 312
 313         av_free(priv->oc);
 314 }
 315
 316 static void list_formats(void) {
 317         AVOutputFormat *fmt;
 318         mp_msg(MSGT_DEMUX, MSGL_INFO, "Available lavf output formats:\n");
 319         for (fmt = first_oformat; fmt; fmt = fmt->next)
 320                 mp_msg(MSGT_DEMUX, MSGL_INFO, "%15s : %s\n", fmt->name, fmt->long_name);
 321 }
 322
 323 extern char *out_filename;
 324 int muxer_init_muxer_lavf(muxer_t *muxer)
 325 {
 326         muxer_priv_t *priv;
 327         AVOutputFormat *fmt = NULL;
 328
 329         av_register_all();
 330
 331         if (conf_format && strcmp(conf_format, "help") == 0) {
 332                 list_formats();
 333                 return 0;
 334         }
 335
 336         mp_msg(MSGT_MUXER, MSGL_WARN, "** MUXER_LAVF *****************************************************************\n");
 337         mp_msg(MSGT_MUXER, MSGL_WARN,
 338 "REMEMBER: MEncoder's libavformat muxing is presently broken and can generate\n"
 339 "INCORRECT files in the presence of B-frames. Moreover, due to bugs MPlayer\n"
 340 "will play these INCORRECT files as if nothing were wrong!\n"
 341 "*******************************************************************************\n");
 342
 343         priv = (muxer_priv_t *) calloc(1, sizeof(muxer_priv_t));
 344         if(priv == NULL)
 345                 return 0;
 346
 347         priv->oc = av_alloc_format_context();
 348         if(!priv->oc)
 349         {
 350                 mp_msg(MSGT_MUXER, MSGL_FATAL, "Could not get format context.\n");
 351                 goto fail;
 352         }
 353
 354         if(conf_format)
 355                 fmt = guess_format(conf_format, NULL, NULL);
 356         if(! fmt)
 357                 fmt = guess_format(NULL, out_filename, NULL);
 358         if(! fmt)
 359         {
 360                 mp_msg(MSGT_MUXER, MSGL_FATAL, "Cannot get specified format.\n");
 361                 goto fail;
 362         }
 363         priv->oc->oformat = fmt;
 364
 365
 366         if(av_set_parameters(priv->oc, NULL) < 0)
 367         {
 368                 mp_msg(MSGT_MUXER, MSGL_FATAL, "invalid output format parameters\n");
 369                 goto fail;
 370         }
 371         priv->oc->packet_size= mux_packet_size;
 372         priv->oc->mux_rate= mux_rate;
 373         priv->oc->preload= (int)(mux_preload*AV_TIME_BASE);
 374         priv->oc->max_delay= (int)(mux_max_delay*AV_TIME_BASE);
 375         if (info_name)
 376             av_strlcpy(priv->oc->title    , info_name,      sizeof(priv->oc->title    ));
 377         if (info_artist)
 378             av_strlcpy(priv->oc->author   , info_artist,    sizeof(priv->oc->author   ));
 379         if (info_genre)
 380             av_strlcpy(priv->oc->genre    , info_genre,     sizeof(priv->oc->genre    ));
 381         if (info_copyright)
 382             av_strlcpy(priv->oc->copyright, info_copyright, sizeof(priv->oc->copyright));
 383         if (info_comment)
 384             av_strlcpy(priv->oc->comment  , info_comment,   sizeof(priv->oc->comment  ));
 385
 386         if(mux_avopt){
 387             if(parse_avopts(priv->oc, mux_avopt) < 0){
 388                 mp_msg(MSGT_MUXER,MSGL_ERR, "Your options /%s/ look like gibberish to me pal.\n", mux_avopt);
 389                 goto fail;
 390             }
 391         }
 392
 393         priv->oc->pb = av_alloc_put_byte(priv->buffer, BIO_BUFFER_SIZE, 1, muxer, NULL, mp_write, mp_seek);
 394         if ((muxer->stream->flags & STREAM_SEEK) != STREAM_SEEK)
 395             priv->oc->pb->is_streamed = 1;
 396
 397         muxer->priv = (void *) priv;
 398         muxer->cont_new_stream = &lavf_new_stream;
 399         muxer->cont_write_chunk = &write_chunk;
 400         muxer->cont_write_header = &write_header;
 401         muxer->cont_write_index = &write_trailer;
 402         muxer->fix_stream_parameters = &fix_parameters;
 403         mp_msg(MSGT_MUXER, MSGL_INFO, "OK, exit.\n");
 404         return 1;
 405
 406 fail:
 407         free(priv);
 408         return 0;
 409 }