gtk2_ardour/transcode_ffmpeg.cc

   1 /*
   2     Copyright (C) 2010-2013 Paul Davis
   3     Author: Robin Gareus <robin@gareus.org>
   4
   5     This program is free software; you can redistribute it and/or modify
   6     it under the terms of the GNU General Public License as published by
   7     the Free Software Foundation; either version 2 of the License, or
   8     (at your option) any later version.
   9
  10     This program is distributed in the hope that it will be useful,
  11     but WITHOUT ANY WARRANTY; without even the implied warranty of
  12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13     GNU General Public License for more details.
  14
  15     You should have received a copy of the GNU General Public License
  16     along with this program; if not, write to the Free Software
  17     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  18
  19 */
  20 #include <stdio.h>
  21 #include <string.h>
  22 #include <sstream>
  23 #include <sys/types.h>
  24
  25 #include "pbd/error.h"
  26 #include "pbd/convert.h"
  27 #include "pbd/file_utils.h"
  28 #include "gui_thread.h"
  29
  30 #include "transcode_ffmpeg.h"
  31 #include "utils_videotl.h"
  32 #include "video_tool_paths.h"
  33
  34 #include "pbd/i18n.h"
  35
  36 using namespace PBD;
  37 using namespace VideoUtils;
  38
  39 TranscodeFfmpeg::TranscodeFfmpeg (std::string f)
  40         : infile(f)
  41 {
  42         probeok = false;
  43         ffexecok = false;
  44         m_duration = 0;
  45         m_avoffset = m_lead_in = m_lead_out = 0;
  46         m_width = m_height = 0;
  47         m_aspect = m_fps = 0;
  48         m_sar = "";
  49 #if 1 /* tentative debug mode */
  50         debug_enable = false;
  51 #endif
  52
  53         if (!ArdourVideoToolPaths::transcoder_exe(ffmpeg_exe, ffprobe_exe)) {
  54                 warning << string_compose(
  55                                 _(
  56                                         "ffmpeg installation was not found on this system.\n"
  57                                         "%1 requires ffmpeg and ffprobe from ffmpeg.org - version 1.1 or newer.\n"
  58                                         "Video import and export is not possible until you install tools.\n"
  59                                         "\n"
  60                                         "The tools are included with the %1 releases from ardour.org "
  61                                         "and also available with the video-server at http://x42.github.com/harvid/\n"
  62                                         "\n"
  63                                         "Important: the files need to be installed in $PATH and named ffmpeg_harvid and ffprobe_harvid.\n"
  64                                         "If you already have a suitable ffmpeg installation on your system, we recommend creating "
  65                                         "symbolic links from ffmpeg to ffmpeg_harvid and from ffprobe to ffprobe_harvid.\n"
  66                                         "\n"
  67                                         "see also http://manual.ardour.org/video-timeline/setup/"
  68                                  ), PROGRAM_NAME) << endmsg;
  69                 return;
  70         }
  71         ffexecok = true;
  72
  73         if (infile.empty() || !probe()) {
  74                 return;
  75         }
  76         probeok = true;
  77 }
  78
  79 TranscodeFfmpeg::~TranscodeFfmpeg ()
  80 {
  81   ;
  82 }
  83
  84 bool
  85 TranscodeFfmpeg::probe ()
  86 {
  87         ffoutput = "";
  88         char **argp;
  89         argp=(char**) calloc(7,sizeof(char*));
  90         argp[0] = strdup(ffprobe_exe.c_str());
  91         argp[1] = strdup("-print_format");
  92         argp[2] = strdup("csv=nk=0");
  93         argp[3] = strdup("-show_format");
  94         argp[4] = strdup("-show_streams");
  95         argp[5] = strdup(infile.c_str());
  96         argp[6] = 0;
  97         ffcmd = new ARDOUR::SystemExec(ffprobe_exe, argp);
  98         ffcmd->ReadStdout.connect_same_thread (*this, boost::bind (&TranscodeFfmpeg::ffprobeparse, this, _1 ,_2));
  99         ffcmd->Terminated.connect (*this, invalidator (*this), boost::bind (&TranscodeFfmpeg::ffexit, this), gui_context());
 100         if (ffcmd->start(1)) {
 101                 ffexit();
 102                 return false;
 103         }
 104
 105         /* wait for ffprobe process to exit */
 106         ffcmd->wait();
 107
 108         /* wait for interposer thread to copy all data.
 109          * SystemExec::Terminated is emitted and ffcmd set to NULL */
 110         int timeout = 300; // 1.5 sec
 111         while (ffcmd && --timeout > 0) {
 112                 Glib::usleep(5000);
 113                 ARDOUR::GUIIdle();
 114         }
 115         if (timeout == 0 || ffoutput.empty()) {
 116                 return false;
 117         }
 118
 119         /* parse */
 120
 121         std::vector<std::vector<std::string> > lines;
 122         ParseCSV(ffoutput, lines);
 123         double timebase = 0;
 124         m_width = m_height = 0;
 125         m_fps = m_aspect = 0;
 126         m_duration = 0;
 127         m_sar.clear();
 128         m_codec.clear();
 129         m_audio.clear();
 130
 131 #define PARSE_FRACTIONAL_FPS(VAR) \
 132         { \
 133                 std::string::size_type pos; \
 134                 VAR = atof(value); \
 135                 pos = value.find_first_of('/'); \
 136                 if (pos != std::string::npos) { \
 137                         VAR = atof(value.substr(0, pos)) / atof(value.substr(pos+1)); \
 138                 } \
 139         }
 140
 141         std::string duration_from_format;
 142
 143         for (std::vector<std::vector<std::string> >::iterator i = lines.begin(); i != lines.end(); ++i) {
 144                 if (i->at(0) == X_("format")) {
 145                         /* format,filename,#streams,format-name,format-long-name,start-time,duration,size,bitrate */
 146                         for (std::vector<std::string>::iterator kv = i->begin(); kv != i->end(); ++kv) {
 147                                 const size_t kvsep = kv->find('=');
 148                                 if(kvsep == std::string::npos) continue;
 149                                 std::string key = kv->substr(0, kvsep);
 150                                 std::string value = kv->substr(kvsep + 1);
 151                                 if (key == X_("duration")) {
 152                                         duration_from_format = value;
 153                                 }
 154                         }
 155                 } else
 156                 if (i->at(0) == X_("stream")) {
 157                         if (i->at(5) == X_("codec_type=video") && m_width == 0) {
 158
 159                                 for (std::vector<std::string>::iterator kv = i->begin(); kv != i->end(); ++kv) {
 160                                         const size_t kvsep = kv->find('=');
 161                                         if(kvsep == std::string::npos) continue;
 162                                         std::string key = kv->substr(0, kvsep);
 163                                         std::string value = kv->substr(kvsep + 1);
 164
 165                                         if (key == X_("index")) {
 166                                                 m_videoidx = atoi(value);
 167                                         } else if (key == X_("width")) {
 168                                                 m_width = atoi(value);
 169                                         } else if (key == X_("height")) {
 170                                                 m_height = atoi(value);
 171                                         } else if (key == X_("codec_name")) {
 172                                                 if (!m_codec.empty()) m_codec += " ";
 173                                                 m_codec += value;
 174                                         } else if (key == X_("codec_long_name")) {
 175                                                 if (!m_codec.empty()) m_codec += " ";
 176                                                 m_codec += "[" + value + "]";
 177                                         } else if (key == X_("codec_tag_string")) {
 178                                                 if (!m_codec.empty()) m_codec += " ";
 179                                                 m_codec += "(" + value + ")";
 180                                         } else if (key == X_("r_frame_rate")) {
 181                                                 PARSE_FRACTIONAL_FPS(m_fps)
 182                                         } else if (key == X_("avg_frame_rate") && m_fps == 0) {
 183                                                 PARSE_FRACTIONAL_FPS(m_fps)
 184                                         } else if (key == X_("time_base")) {
 185                                                 PARSE_FRACTIONAL_FPS(timebase)
 186                                         } else if (key == X_("timecode") && m_duration == 0 && m_fps > 0) {
 187                                                 int h,m,s; char f[32];
 188                                                 if (sscanf(i->at(16).c_str(), "%d:%d:%d:%32s",&h,&m,&s,f) == 4) {
 189                                                         m_duration = (ARDOUR::framecnt_t) floor(m_fps * (
 190                                                                         h * 3600.0
 191                                                                 + m * 60.0
 192                                                                 + s * 1.0
 193                                                                 + atoi(f) / pow((double)10, (int)strlen(f))
 194                                                         ));
 195                                                 }
 196                                         } else if (key == X_("duration_ts") && m_fps == 0 && timebase !=0 ) {
 197                                                 m_duration = atof(value) * m_fps * timebase;
 198                                         } else if (key == X_("duration") && m_fps != 0 && m_duration == 0) {
 199                                                 m_duration = atof(value) * m_fps;
 200                                         } else if (key == X_("sample_aspect_ratio")) {
 201                                                 std::string::size_type pos;
 202                                                 pos = value.find_first_of(':');
 203                                                 if (pos != std::string::npos && atof(value.substr(pos+1)) != 0) {
 204                                                         m_sar = value;
 205                                                         m_sar.replace(pos, 1, "/");
 206                                                 }
 207                                         } else if (key == X_("display_aspect_ratio")) {
 208                                                 std::string::size_type pos;
 209                                                 pos = value.find_first_of(':');
 210                                                 if (pos != std::string::npos && atof(value.substr(pos+1)) != 0) {
 211                                                         m_aspect = atof(value.substr(0, pos)) / atof(value.substr(pos+1));
 212                                                 }
 213                                         }
 214                                 }
 215
 216                                 if (m_aspect == 0) {
 217                                         m_aspect = (double)m_width / (double)m_height;
 218                                 }
 219
 220                         } else if (i->at(5) == X_("codec_type=audio")) { /* new ffprobe */
 221                                 FFAudioStream as;
 222                                 for (std::vector<std::string>::iterator kv = i->begin(); kv != i->end(); ++kv) {
 223                                         const size_t kvsep = kv->find('=');
 224                                         if(kvsep == std::string::npos) continue;
 225                                         std::string key = kv->substr(0, kvsep);
 226                                         std::string value = kv->substr(kvsep + 1);
 227
 228                                         if (key == X_("channels")) {
 229                                                 as.channels   = atoi(value);
 230                                         } else if (key == X_("index")) {
 231                                                 as.stream_id  = value;
 232                                         } else if (key == X_("codec_long_name")) {
 233                                                 if (!as.name.empty()) as.name += " ";
 234                                                 as.name += value;
 235                                         } else if (key == X_("codec_name")) {
 236                                                 if (!as.name.empty()) as.name += " ";
 237                                                 as.name += value;
 238                                         } else if (key == X_("sample_fmt")) {
 239                                                 if (!as.name.empty()) as.name += " ";
 240                                                 as.name += "FMT:" + value;
 241                                         } else if (key == X_("sample_rate")) {
 242                                                 if (!as.name.empty()) as.name += " ";
 243                                                 as.name += "SR:" + value;
 244                                         }
 245
 246                                 }
 247                                 m_audio.push_back(as);
 248                         }
 249                 }
 250         }
 251         /* end parse */
 252
 253         if (m_duration == 0 && !duration_from_format.empty() && m_fps > 0) {
 254                 warning << "using video-duration from format (container)." << endmsg;
 255                 m_duration = atof(duration_from_format) * m_fps;
 256         }
 257
 258 #if 0 /* DEBUG */
 259         printf("FPS: %f\n", m_fps);
 260         printf("Duration: %lu frames\n",(unsigned long)m_duration);
 261         printf("W/H: %ix%i\n",m_width, m_height);
 262         printf("aspect: %f\n",m_aspect);
 263         printf("codec: %s\n",m_codec.c_str());
 264         if (m_audio.size() > 0) {
 265                 for (AudioStreams::iterator it = m_audio.begin(); it < m_audio.end(); ++it) {
 266                         printf("audio: %s - %i channels\n",(*it).stream_id.c_str(), (*it).channels);
 267                 }
 268         } else {
 269           printf("audio: no audio streams in file.\n");
 270         }
 271 #endif
 272
 273         return true;
 274 }
 275
 276 TranscodeFfmpeg::FFSettings
 277 TranscodeFfmpeg::default_encoder_settings ()
 278 {
 279         TranscodeFfmpeg::FFSettings ffs;
 280         ffs.clear();
 281         ffs["-vcodec"] = "mpeg4";
 282         ffs["-acodec"] = "ac3";
 283         ffs["-b:v"] = "5000k";
 284         ffs["-b:a"] = "160k";
 285         return ffs;
 286 }
 287
 288 TranscodeFfmpeg::FFSettings
 289 TranscodeFfmpeg::default_meta_data ()
 290 {
 291         TranscodeFfmpeg::FFSettings ffm;
 292         ffm.clear();
 293         ffm["comment"] = "Created with " PROGRAM_NAME;
 294         return ffm;
 295 }
 296
 297 char *
 298 TranscodeFfmpeg::format_metadata (std::string key, std::string value)
 299 {
 300         size_t start_pos = 0;
 301         std::string v1 = value;
 302         while((start_pos = v1.find_first_not_of(
 303                         "abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789(),.\"'",
 304                         start_pos)) != std::string::npos)
 305         {
 306                 v1.replace(start_pos, 1, "_");
 307                 start_pos += 1;
 308         }
 309
 310         start_pos = 0;
 311         while((start_pos = v1.find("\"", start_pos)) != std::string::npos) {
 312                 v1.replace(start_pos, 1, "\\\"");
 313                 start_pos += 2;
 314         }
 315
 316         size_t len = key.length() + v1.length() + 4;
 317         char *mds = (char*) calloc(len, sizeof(char));
 318 #ifdef PLATFORM_WINDOWS
 319         /* SystemExec::make_wargs() adds quotes around the complete argument
 320          * windows uses CreateProcess() with a parameter string
 321          * (and not an array list of separate arguments)
 322          */
 323         snprintf(mds, len, "%s=%s", key.c_str(), v1.c_str());
 324 #else
 325         snprintf(mds, len, "%s=\"%s\"", key.c_str(), v1.c_str());
 326 #endif
 327         return mds;
 328 }
 329
 330 bool
 331 TranscodeFfmpeg::encode (std::string outfile, std::string inf_a, std::string inf_v, TranscodeFfmpeg::FFSettings ffs, TranscodeFfmpeg::FFSettings meta, bool map)
 332 {
 333 #define MAX_FFMPEG_ENCODER_ARGS (100)
 334         char **argp;
 335         int a=0;
 336
 337         argp=(char**) calloc(MAX_FFMPEG_ENCODER_ARGS,sizeof(char*));
 338         argp[a++] = strdup(ffmpeg_exe.c_str());
 339         if (m_avoffset < 0 || m_avoffset > 0) {
 340                 std::ostringstream osstream; osstream << m_avoffset;
 341                 argp[a++] = strdup("-itsoffset");
 342                 argp[a++] = strdup(osstream.str().c_str());
 343         }
 344         argp[a++] = strdup("-i");
 345         argp[a++] = strdup(inf_v.c_str());
 346
 347         argp[a++] = strdup("-i");
 348         argp[a++] = strdup(inf_a.c_str());
 349
 350         for(TranscodeFfmpeg::FFSettings::const_iterator it = ffs.begin(); it != ffs.end(); ++it) {
 351                 argp[a++] = strdup(it->first.c_str());
 352                 argp[a++] = strdup(it->second.c_str());
 353         }
 354         for(TranscodeFfmpeg::FFSettings::const_iterator it = meta.begin(); it != meta.end(); ++it) {
 355                 argp[a++] = strdup("-metadata");
 356                 argp[a++] = format_metadata(it->first.c_str(), it->second.c_str());
 357         }
 358
 359         if (m_fps > 0) {
 360                 m_lead_in  = rint (m_lead_in * m_fps) / m_fps;
 361                 m_lead_out = rint (m_lead_out * m_fps) / m_fps;
 362         }
 363
 364         if (m_lead_in != 0 && m_lead_out != 0) {
 365                 std::ostringstream osstream;
 366                 argp[a++] = strdup("-vf");
 367                 osstream << X_("color=c=black:s=") << m_width << X_("x") << m_height << X_(":d=") << m_lead_in;
 368                 if (!m_sar.empty()) osstream << X_(":sar=") << m_sar;
 369                 osstream << X_(" [pre]; ");
 370                 osstream << X_("color=c=black:s=") << m_width << X_("x") << m_height << X_(":d=") << m_lead_out;
 371                 if (!m_sar.empty()) osstream << X_(":sar=") << m_sar;
 372                 osstream << X_(" [post]; ");
 373                 osstream << X_("[pre] [in] [post] concat=n=3");
 374                 argp[a++] = strdup(osstream.str().c_str());
 375         } else if (m_lead_in != 0) {
 376                 std::ostringstream osstream;
 377                 argp[a++] = strdup("-vf");
 378                 osstream << X_("color=c=black:s=") << m_width << X_("x") << m_height << X_(":d=") << m_lead_in;
 379                 if (!m_sar.empty()) osstream << X_(":sar=") << m_sar;
 380                 osstream << X_(" [pre]; ");
 381                 osstream << X_("[pre] [in] concat=n=2");
 382                 argp[a++] = strdup(osstream.str().c_str());
 383         } else if (m_lead_out != 0) {
 384                 std::ostringstream osstream;
 385                 argp[a++] = strdup("-vf");
 386                 osstream << X_("color=c=black:s=") << m_width << X_("x") << m_height << X_(":d=") << m_lead_out;
 387                 if (!m_sar.empty()) osstream << X_(":sar=") << m_sar;
 388                 osstream << X_(" [post]; ");
 389                 osstream << X_("[in] [post] concat=n=2");
 390                 argp[a++] = strdup(osstream.str().c_str());
 391         }
 392
 393         if (map) {
 394                 std::ostringstream osstream;
 395                 argp[a++] = strdup("-map");
 396                 osstream << X_("0:") << m_videoidx;
 397                 argp[a++] = strdup(osstream.str().c_str());
 398                 argp[a++] = strdup("-map");
 399                 argp[a++] = strdup("1:0");
 400         }
 401
 402         argp[a++] = strdup("-y");
 403         argp[a++] = strdup(outfile.c_str());
 404         argp[a] = (char *)0;
 405         assert(a<MAX_FFMPEG_ENCODER_ARGS);
 406         /* Note: these are free()d in ~SystemExec */
 407 #if 1 /* DEBUG */
 408         if (debug_enable) { /* tentative debug mode */
 409         printf("EXPORT ENCODE:\n");
 410         for (int i=0; i< a; ++i) {
 411           printf("%s ", argp[i]);
 412         }
 413         printf("\n");
 414         }
 415 #endif
 416
 417         ffcmd = new ARDOUR::SystemExec(ffmpeg_exe, argp);
 418         ffcmd->ReadStdout.connect_same_thread (*this, boost::bind (&TranscodeFfmpeg::ffmpegparse_v, this, _1 ,_2));
 419         ffcmd->Terminated.connect (*this, invalidator (*this), boost::bind (&TranscodeFfmpeg::ffexit, this), gui_context());
 420         if (ffcmd->start(2)) {
 421                 ffexit();
 422                 return false;
 423         }
 424         return true;
 425 }
 426
 427 bool
 428 TranscodeFfmpeg::extract_audio (std::string outfile, ARDOUR::framecnt_t /*samplerate*/, unsigned int stream)
 429 {
 430         if (!probeok) return false;
 431   if (stream >= m_audio.size()) return false;
 432
 433         char **argp;
 434         int i = 0;
 435
 436         argp=(char**) calloc(15,sizeof(char*));
 437         argp[i++] = strdup(ffmpeg_exe.c_str());
 438         argp[i++] = strdup("-i");
 439         argp[i++] = strdup(infile.c_str());
 440 #if 0 /* ffmpeg write original samplerate, use a3/SRC to resample */
 441         argp[i++] = strdup("-ar");
 442         argp[i] = (char*) calloc(7,sizeof(char)); snprintf(argp[i++], 7, "%"PRId64, samplerate);
 443 #endif
 444         argp[i++] = strdup("-ac");
 445         argp[i] = (char*) calloc(3,sizeof(char)); snprintf(argp[i++], 3, "%i", m_audio.at(stream).channels);
 446         argp[i++] = strdup("-map");
 447         argp[i] = (char*) calloc(8,sizeof(char)); snprintf(argp[i++], 8, "0:%s", m_audio.at(stream).stream_id.c_str());
 448         argp[i++] = strdup("-vn");
 449         argp[i++] = strdup("-acodec");
 450         argp[i++] = strdup("pcm_f32le");
 451         argp[i++] = strdup("-y");
 452         argp[i++] = strdup(outfile.c_str());
 453         argp[i++] = (char *)0;
 454         /* Note: argp is free()d in ~SystemExec */
 455 #if 1 /* DEBUG */
 456         if (debug_enable) { /* tentative debug mode */
 457         printf("EXTRACT AUDIO:\n");
 458         for (int i=0; i< 14; ++i) {
 459           printf("%s ", argp[i]);
 460         }
 461         printf("\n");
 462         }
 463 #endif
 464
 465         ffcmd = new ARDOUR::SystemExec(ffmpeg_exe, argp);
 466         ffcmd->ReadStdout.connect_same_thread (*this, boost::bind (&TranscodeFfmpeg::ffmpegparse_a, this, _1 ,_2));
 467         ffcmd->Terminated.connect (*this, invalidator (*this), boost::bind (&TranscodeFfmpeg::ffexit, this), gui_context());
 468         if (ffcmd->start(2)) {
 469                 ffexit();
 470                 return false;
 471         }
 472         return true;
 473 }
 474
 475
 476 bool
 477 TranscodeFfmpeg::transcode (std::string outfile, const int outw, const int outh, const int kbitps)
 478 {
 479         if (!probeok) return false;
 480
 481         char **argp;
 482         int bitrate = kbitps;
 483         int width = outw;
 484         int height = outh;
 485
 486         if (width < 1 || width > m_width) { width = m_width; } /* don't allow upscaling */
 487         if (height < 1 || height > m_height) { height = floor(width / m_aspect); }
 488
 489         if (bitrate == 0) {
 490                 const double bitperpixel = .7; /* avg quality */
 491                 bitrate = floor(m_fps * width * height * bitperpixel / 10000.0);
 492         } else {
 493                 bitrate = bitrate / 10;
 494         }
 495         if (bitrate < 10)  bitrate = 10;
 496         if (bitrate > 1000) bitrate = 1000;
 497
 498         argp=(char**) calloc(16,sizeof(char*));
 499         argp[0] = strdup(ffmpeg_exe.c_str());
 500         argp[1] = strdup("-i");
 501         argp[2] = strdup(infile.c_str());
 502         argp[3] = strdup("-b:v");
 503         argp[4] = (char*) calloc(7,sizeof(char)); snprintf(argp[4], 7, "%i0k", bitrate);
 504         argp[5] = strdup("-s");
 505         argp[6] = (char*) calloc(10,sizeof(char)); snprintf(argp[6], 10, "%ix%i", width, height);
 506         argp[7] = strdup("-y");
 507         argp[8] = strdup("-vcodec");
 508         argp[9] = strdup("mjpeg");
 509         argp[10] = strdup("-an");
 510         argp[11] = strdup("-intra");
 511         argp[12] = strdup("-g");
 512         argp[13] = strdup("1");
 513         argp[14] = strdup(outfile.c_str());
 514         argp[15] = (char *)0;
 515         /* Note: these are free()d in ~SystemExec */
 516 #if 1 /* DEBUG */
 517         if (debug_enable) { /* tentative debug mode */
 518         printf("TRANSCODE VIDEO:\n");
 519         for (int i=0; i< 15; ++i) {
 520           printf("%s ", argp[i]);
 521         }
 522         printf("\n");
 523         }
 524 #endif
 525         ffcmd = new ARDOUR::SystemExec(ffmpeg_exe, argp);
 526         ffcmd->ReadStdout.connect_same_thread (*this, boost::bind (&TranscodeFfmpeg::ffmpegparse_v, this, _1 ,_2));
 527         ffcmd->Terminated.connect (*this, invalidator (*this), boost::bind (&TranscodeFfmpeg::ffexit, this), gui_context());
 528         if (ffcmd->start(2)) {
 529                 ffexit();
 530                 return false;
 531         }
 532         return true;
 533 }
 534
 535 void
 536 TranscodeFfmpeg::cancel ()
 537 {
 538         if (!ffcmd || !ffcmd->is_running()) { return;}
 539         ffcmd->write_to_stdin("q");
 540 #ifdef PLATFORM_WINDOWS
 541         Sleep(1000);
 542 #else
 543         sleep (1);
 544 #endif
 545         if (ffcmd) {
 546           ffcmd->terminate();
 547         }
 548 }
 549
 550 void
 551 TranscodeFfmpeg::ffexit ()
 552 {
 553         delete ffcmd;
 554         ffcmd=0;
 555         Finished(); /* EMIT SIGNAL */
 556 }
 557
 558 void
 559 TranscodeFfmpeg::ffprobeparse (std::string d, size_t /* s */)
 560 {
 561         ffoutput+=d;
 562 }
 563
 564 void
 565 TranscodeFfmpeg::ffmpegparse_a (std::string d, size_t /* s */)
 566 {
 567         const char *t;
 568         int h,m,s; char f[7];
 569         ARDOUR::framecnt_t p = -1;
 570
 571         if (!(t=strstr(d.c_str(), "time="))) { return; }
 572
 573         if (sscanf(t+5, "%d:%d:%d.%s",&h,&m,&s,f) == 4) {
 574                 p = (ARDOUR::framecnt_t) floor( 100.0 * (
 575                       h * 3600.0
 576                     + m * 60.0
 577                     + s * 1.0
 578                     + atoi(f) / pow((double)10, (int)strlen(f))
 579                 ));
 580                 p = p * m_fps / 100.0;
 581                 if (p > m_duration ) { p = m_duration; }
 582                 Progress(p, m_duration); /* EMIT SIGNAL */
 583         } else {
 584                 Progress(0, 0); /* EMIT SIGNAL */
 585         }
 586 }
 587
 588 void
 589 TranscodeFfmpeg::ffmpegparse_v (std::string d, size_t /* s */)
 590 {
 591         if (strstr(d.c_str(), "ERROR") || strstr(d.c_str(), "Error") || strstr(d.c_str(), "error")) {
 592                 warning << "ffmpeg-error: " << d << endmsg;
 593         }
 594         if (strncmp(d.c_str(), "frame=",6)) {
 595 #if 1 /* DEBUG */
 596                 if (debug_enable) {
 597                         d.erase(d.find_last_not_of(" \t\r\n") + 1);
 598                   printf("ffmpeg: '%s'\n", d.c_str());
 599                 }
 600 #endif
 601                 Progress(0, 0); /* EMIT SIGNAL */
 602                 return;
 603         }
 604         ARDOUR::framecnt_t f = atol(d.substr(6));
 605         if (f == 0) {
 606                 Progress(0, 0); /* EMIT SIGNAL */
 607         } else {
 608                 Progress(f, m_duration); /* EMIT SIGNAL */
 609         }
 610 }