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
  33 #include "i18n.h"
  34
  35 using namespace PBD;
  36 using namespace VideoUtils;
  37
  38 TranscodeFfmpeg::TranscodeFfmpeg (std::string f)
  39         : infile(f)
  40 {
  41         probeok = false;
  42         ffexecok = false;
  43         ffmpeg_exe = "";
  44         ffprobe_exe = "";
  45         m_duration = 0;
  46         m_avoffset = m_lead_in = m_lead_out = 0;
  47         m_width = m_height = 0;
  48         m_aspect = m_fps = 0;
  49 #if 1 /* tentative debug mode */
  50         debug_enable = false;
  51 #endif
  52
  53         std::string ff_file_path;
  54         if (find_file_in_search_path (Searchpath(Glib::getenv("PATH")), X_("ffmpeg_harvid"), ff_file_path)) { ffmpeg_exe = ff_file_path; }
  55         else if (Glib::file_test(X_("C:\\Program Files\\harvid\\ffmpeg.exe"), Glib::FILE_TEST_EXISTS)) {
  56                 ffmpeg_exe = X_("C:\\Program Files\\ffmpeg\\ffmpeg.exe");
  57         }
  58         else if (Glib::file_test(X_("C:\\Program Files\\ffmpeg\\ffmpeg.exe"), Glib::FILE_TEST_EXISTS)) {
  59                 ffmpeg_exe = X_("C:\\Program Files\\ffmpeg\\ffmpeg.exe");
  60         }
  61
  62         if (find_file_in_search_path (Searchpath(Glib::getenv("PATH")), X_("ffprobe_harvid"), ff_file_path)) { ffprobe_exe = ff_file_path; }
  63         else if (Glib::file_test(X_("C:\\Program Files\\harvid\\ffprobe.exe"), Glib::FILE_TEST_EXISTS)) {
  64                 ffprobe_exe = X_("C:\\Program Files\\ffmpeg\\ffprobe.exe");
  65         }
  66         else if (Glib::file_test(X_("C:\\Program Files\\ffmpeg\\ffprobe.exe"), Glib::FILE_TEST_EXISTS)) {
  67                 ffprobe_exe = X_("C:\\Program Files\\ffmpeg\\ffprobe.exe");
  68         }
  69
  70         if (ffmpeg_exe.empty() || ffprobe_exe.empty()) {
  71                 warning << string_compose(
  72                                 _(
  73                                 "No ffprobe or ffmpeg executables could be found on this system.\n"
  74                                 "Video import and export is not possible until you install those tools.\n"
  75                                 "%1 requires ffmpeg and ffprobe from ffmpeg.org - version 1.1 or newer.\n"
  76                                 "\n"
  77                                 "The tools are included with the %1 releases from ardour.org "
  78                                 "and also available with the video-server at http://x42.github.com/harvid/\n"
  79                                 "\n"
  80                                 "Important: the files need to be installed in $PATH and named ffmpeg_harvid and ffprobe_harvid.\n"
  81                                 "If you already have a suitable ffmpeg installation on your system, we recommend creating "
  82                                 "symbolic links from ffmpeg to ffmpeg_harvid and from ffprobe to ffprobe_harvid.\n"
  83                                 ), PROGRAM_NAME) << endmsg;
  84                 return;
  85         }
  86         ffexecok = true;
  87
  88         if (infile.empty() || !probe()) {
  89                 return;
  90         }
  91         probeok = true;
  92 }
  93
  94 TranscodeFfmpeg::~TranscodeFfmpeg ()
  95 {
  96   ;
  97 }
  98
  99 bool
 100 TranscodeFfmpeg::probe ()
 101 {
 102         ffoutput = "";
 103         char **argp;
 104         argp=(char**) calloc(7,sizeof(char*));
 105         argp[0] = strdup(ffprobe_exe.c_str());
 106         argp[1] = strdup("-print_format");
 107         argp[2] = strdup("csv=nk=0");
 108         argp[3] = strdup("-show_format");
 109         argp[4] = strdup("-show_streams");
 110         argp[5] = strdup(infile.c_str());
 111         argp[6] = 0;
 112         ffcmd = new SystemExec(ffprobe_exe, argp);
 113         ffcmd->ReadStdout.connect_same_thread (*this, boost::bind (&TranscodeFfmpeg::ffprobeparse, this, _1 ,_2));
 114         ffcmd->Terminated.connect_same_thread (*this, boost::bind (&TranscodeFfmpeg::ffexit, this));
 115         if (ffcmd->start(1)) {
 116                 ffexit();
 117                 return false;
 118         }
 119
 120         /* wait for ffprobe process to exit */
 121         ffcmd->wait();
 122
 123         /* wait for interposer thread to copy all data.
 124          * SystemExec::Terminated is emitted and ffcmd set to NULL */
 125         int timeout = 300; // 1.5 sec
 126         while (ffcmd && --timeout > 0) {
 127                 Glib::usleep(5000);
 128         }
 129         if (timeout == 0 || ffoutput.empty()) {
 130                 return false;
 131         }
 132
 133         /* parse */
 134
 135         std::vector<std::vector<std::string> > lines;
 136         ParseCSV(ffoutput, lines);
 137         double timebase = 0;
 138         m_width = m_height = 0;
 139         m_fps = m_aspect = 0;
 140         m_duration = 0;
 141         m_codec.clear();
 142         m_audio.clear();
 143
 144 #define PARSE_FRACTIONAL_FPS(VAR) \
 145         { \
 146                 std::string::size_type pos; \
 147                 VAR = atof(value); \
 148                 pos = value.find_first_of('/'); \
 149                 if (pos != std::string::npos) { \
 150                         VAR = atof(value.substr(0, pos)) / atof(value.substr(pos+1)); \
 151                 } \
 152         }
 153
 154         for (std::vector<std::vector<std::string> >::iterator i = lines.begin(); i != lines.end(); ++i) {
 155                 if (i->at(0) == X_("format")) {
 156                         /* format,filename,#streams,format-name,format-long-name,start-time,duration,size,bitrate */
 157                 } else
 158                 if (i->at(0) == X_("stream")) {
 159                         if (i->at(5) == X_("codec_type=video") && m_width == 0) {
 160
 161                                 for (std::vector<std::string>::iterator kv = i->begin(); kv != i->end(); ++kv) {
 162                                         const size_t kvsep = kv->find('=');
 163                                         if(kvsep == std::string::npos) continue;
 164                                         std::string key = kv->substr(0, kvsep);
 165                                         std::string value = kv->substr(kvsep + 1);
 166
 167                                         if (key == X_("index")) {
 168                                                 m_videoidx = atoi(value);
 169                                         } else if (key == X_("width")) {
 170                                                 m_width = atoi(value);
 171                                         } else if (key == X_("height")) {
 172                                                 m_height = atoi(value);
 173                                         } else if (key == X_("codec_name")) {
 174                                                 if (!m_codec.empty()) m_codec += " ";
 175                                                 m_codec += value;
 176                                         } else if (key == X_("codec_long_name")) {
 177                                                 if (!m_codec.empty()) m_codec += " ";
 178                                                 m_codec += "[" + value + "]";
 179                                         } else if (key == X_("codec_tag_string")) {
 180                                                 if (!m_codec.empty()) m_codec += " ";
 181                                                 m_codec += "(" + value + ")";
 182                                         } else if (key == X_("r_frame_rate")) {
 183                                                 PARSE_FRACTIONAL_FPS(m_fps)
 184                                         } else if (key == X_("avg_frame_rate") && m_fps == 0) {
 185                                                 PARSE_FRACTIONAL_FPS(m_fps)
 186                                         } else if (key == X_("time_base")) {
 187                                                 PARSE_FRACTIONAL_FPS(timebase)
 188                                         } else if (key == X_("timecode") && m_duration == 0) {
 189                                                 int h,m,s; char f[7];
 190                                                 if (sscanf(i->at(16).c_str(), "%d:%d:%d:%s",&h,&m,&s,f) == 4) {
 191                                                         m_duration = (ARDOUR::framecnt_t) floor(m_fps * (
 192                                                                         h * 3600.0
 193                                                                 + m * 60.0
 194                                                                 + s * 1.0
 195                                                                 + atoi(f) / pow(10, strlen(f))
 196                                                         ));
 197                                                 }
 198                                         } else if (key == X_("duration_ts") && m_fps == 0 && timebase !=0 ) {
 199                                                 m_duration = atof(value) * m_fps * timebase;
 200                                         } else if (key == X_("duration") && m_fps != 0 && m_duration == 0) {
 201                                                 m_duration = atof(value) * m_fps;
 202                                         } else if (key == X_("display_aspect_ratio")) {
 203                                                 std::string::size_type pos;
 204                                                 pos = value.find_first_of(':');
 205                                                 if (pos != std::string::npos && atof(value.substr(pos+1)) != 0) {
 206                                                         m_aspect = atof(value.substr(0, pos)) / atof(value.substr(pos+1));
 207                                                 }
 208                                         }
 209                                 }
 210
 211                                 if (m_aspect == 0) {
 212                                         m_aspect = (double)m_width / (double)m_height;
 213                                 }
 214
 215                         } else if (i->at(5) == X_("codec_type=audio")) { /* new ffprobe */
 216                                 FFAudioStream as;
 217                                 for (std::vector<std::string>::iterator kv = i->begin(); kv != i->end(); ++kv) {
 218                                         const size_t kvsep = kv->find('=');
 219                                         if(kvsep == std::string::npos) continue;
 220                                         std::string key = kv->substr(0, kvsep);
 221                                         std::string value = kv->substr(kvsep + 1);
 222
 223                                         if (key == X_("channels")) {
 224                                                 as.channels   = atoi(value);
 225                                         } else if (key == X_("index")) {
 226                                                 as.stream_id  = value;
 227                                         } else if (key == X_("codec_long_name")) {
 228                                                 if (!as.name.empty()) as.name += " ";
 229                                                 as.name += value;
 230                                         } else if (key == X_("codec_name")) {
 231                                                 if (!as.name.empty()) as.name += " ";
 232                                                 as.name += value;
 233                                         } else if (key == X_("sample_fmt")) {
 234                                                 if (!as.name.empty()) as.name += " ";
 235                                                 as.name += "FMT:" + value;
 236                                         } else if (key == X_("sample_rate")) {
 237                                                 if (!as.name.empty()) as.name += " ";
 238                                                 as.name += "SR:" + value;
 239                                         }
 240
 241                                 }
 242                                 m_audio.push_back(as);
 243                         }
 244                 }
 245         }
 246         /* end parse */
 247
 248 #if 0 /* DEBUG */
 249         printf("FPS: %f\n", m_fps);
 250         printf("Duration: %lu frames\n",(unsigned long)m_duration);
 251         printf("W/H: %ix%i\n",m_width, m_height);
 252         printf("aspect: %f\n",m_aspect);
 253         printf("codec: %s\n",m_codec.c_str());
 254         if (m_audio.size() > 0) {
 255                 for (AudioStreams::iterator it = m_audio.begin(); it < m_audio.end(); ++it) {
 256                         printf("audio: %s - %i channels\n",(*it).stream_id.c_str(), (*it).channels);
 257                 }
 258         } else {
 259           printf("audio: no audio streams in file.\n");
 260         }
 261 #endif
 262
 263         return true;
 264 }
 265
 266 TranscodeFfmpeg::FFSettings
 267 TranscodeFfmpeg::default_encoder_settings ()
 268 {
 269         TranscodeFfmpeg::FFSettings ffs;
 270         ffs.clear();
 271         ffs["-vcodec"] = "mpeg4";
 272         ffs["-acodec"] = "ac3";
 273         ffs["-b:v"] = "5000k";
 274         ffs["-b:a"] = "160k";
 275         return ffs;
 276 }
 277
 278 TranscodeFfmpeg::FFSettings
 279 TranscodeFfmpeg::default_meta_data ()
 280 {
 281         TranscodeFfmpeg::FFSettings ffm;
 282         ffm.clear();
 283         ffm["comment"] = "Created with ardour";
 284         return ffm;
 285 }
 286
 287 char *
 288 TranscodeFfmpeg::format_metadata (std::string key, std::string value)
 289 {
 290         size_t start_pos = 0;
 291         std::string v1 = value;
 292         while((start_pos = v1.find_first_not_of(
 293                         "abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789(),.\"'",
 294                         start_pos)) != std::string::npos)
 295         {
 296                 v1.replace(start_pos, 1, "_");
 297                 start_pos += 1;
 298         }
 299
 300         start_pos = 0;
 301         while((start_pos = v1.find("\"", start_pos)) != std::string::npos) {
 302                 v1.replace(start_pos, 1, "\\\"");
 303                 start_pos += 2;
 304         }
 305
 306         size_t len = key.length() + v1.length() + 4;
 307         char *mds = (char*) calloc(len, sizeof(char));
 308         snprintf(mds, len, "%s=\"%s\"", key.c_str(), v1.c_str());
 309         return mds;
 310 }
 311
 312 bool
 313 TranscodeFfmpeg::encode (std::string outfile, std::string inf_a, std::string inf_v, TranscodeFfmpeg::FFSettings ffs, TranscodeFfmpeg::FFSettings meta, bool map)
 314 {
 315 #define MAX_FFMPEG_ENCODER_ARGS (100)
 316         char **argp;
 317         int a=0;
 318
 319         argp=(char**) calloc(MAX_FFMPEG_ENCODER_ARGS,sizeof(char*));
 320         argp[a++] = strdup(ffmpeg_exe.c_str());
 321         if (m_avoffset < 0 || m_avoffset > 0) {
 322                 std::ostringstream osstream; osstream << m_avoffset;
 323                 argp[a++] = strdup("-itsoffset");
 324                 argp[a++] = strdup(osstream.str().c_str());
 325         }
 326         argp[a++] = strdup("-i");
 327         argp[a++] = strdup(inf_v.c_str());
 328
 329         argp[a++] = strdup("-i");
 330         argp[a++] = strdup(inf_a.c_str());
 331
 332         for(TranscodeFfmpeg::FFSettings::const_iterator it = ffs.begin(); it != ffs.end(); ++it) {
 333                 argp[a++] = strdup(it->first.c_str());
 334                 argp[a++] = strdup(it->second.c_str());
 335         }
 336         for(TranscodeFfmpeg::FFSettings::const_iterator it = meta.begin(); it != meta.end(); ++it) {
 337                 argp[a++] = strdup("-metadata");
 338                 argp[a++] = format_metadata(it->first.c_str(), it->second.c_str());
 339         }
 340         if (m_lead_in != 0 && m_lead_out != 0) {
 341                 std::ostringstream osstream;
 342                 argp[a++] = strdup("-vf");
 343                 osstream << X_("color=c=black:s=") << m_width << X_("x") << m_height << X_(":d=") << m_lead_in << X_(" [pre]; ");
 344                 osstream << X_("color=c=black:s=") << m_width << X_("x") << m_height << X_(":d=") << m_lead_out << X_(" [post]; ");
 345                 osstream << X_("[pre] [in] [post] concat=n=3");
 346                 argp[a++] = strdup(osstream.str().c_str());
 347         } else if (m_lead_in != 0) {
 348                 std::ostringstream osstream;
 349                 argp[a++] = strdup("-vf");
 350                 osstream << X_("color=c=black:s=") << m_width << X_("x") << m_height << X_(":d=") << m_lead_in << X_(" [pre]; ");
 351                 osstream << X_("[pre] [in] concat=n=2");
 352                 argp[a++] = strdup(osstream.str().c_str());
 353         } else if (m_lead_out != 0) {
 354                 std::ostringstream osstream;
 355                 argp[a++] = strdup("-vf");
 356                 osstream << X_("color=c=black:s=") << m_width << X_("x") << m_height << X_(":d=") << m_lead_out << X_(" [post]; ");
 357                 osstream << X_("[in] [post] concat=n=2");
 358                 argp[a++] = strdup(osstream.str().c_str());
 359         }
 360
 361         if (map) {
 362                 std::ostringstream osstream;
 363                 argp[a++] = strdup("-map");
 364                 osstream << X_("0:") << m_videoidx;
 365                 argp[a++] = strdup(osstream.str().c_str());
 366                 argp[a++] = strdup("-map");
 367                 argp[a++] = strdup("1:0");
 368         }
 369
 370         argp[a++] = strdup("-y");
 371         argp[a++] = strdup(outfile.c_str());
 372         argp[a] = (char *)0;
 373         assert(a<MAX_FFMPEG_ENCODER_ARGS);
 374         /* Note: these are free()d in ~SystemExec */
 375 #if 1 /* DEBUG */
 376         if (debug_enable) { /* tentative debug mode */
 377         printf("EXPORT ENCODE:\n");
 378         for (int i=0; i< a; ++i) {
 379           printf("%s ", argp[i]);
 380         }
 381         printf("\n");
 382         }
 383 #endif
 384
 385         ffcmd = new SystemExec(ffmpeg_exe, argp);
 386         ffcmd->ReadStdout.connect_same_thread (*this, boost::bind (&TranscodeFfmpeg::ffmpegparse_v, this, _1 ,_2));
 387         ffcmd->Terminated.connect_same_thread (*this, boost::bind (&TranscodeFfmpeg::ffexit, this));
 388         if (ffcmd->start(2)) {
 389                 ffexit();
 390                 return false;
 391         }
 392         return true;
 393 }
 394
 395 bool
 396 TranscodeFfmpeg::extract_audio (std::string outfile, ARDOUR::framecnt_t /*samplerate*/, unsigned int stream)
 397 {
 398         if (!probeok) return false;
 399   if (stream >= m_audio.size()) return false;
 400
 401         char **argp;
 402         int i = 0;
 403
 404         argp=(char**) calloc(15,sizeof(char*));
 405         argp[i++] = strdup(ffmpeg_exe.c_str());
 406         argp[i++] = strdup("-i");
 407         argp[i++] = strdup(infile.c_str());
 408 #if 0 /* ffmpeg write original samplerate, use a3/SRC to resample */
 409         argp[i++] = strdup("-ar");
 410         argp[i] = (char*) calloc(7,sizeof(char)); snprintf(argp[i++], 7, "%"PRId64, samplerate);
 411 #endif
 412         argp[i++] = strdup("-ac");
 413         argp[i] = (char*) calloc(3,sizeof(char)); snprintf(argp[i++], 3, "%i", m_audio.at(stream).channels);
 414         argp[i++] = strdup("-map");
 415         argp[i] = (char*) calloc(8,sizeof(char)); snprintf(argp[i++], 8, "0:%s", m_audio.at(stream).stream_id.c_str());
 416         argp[i++] = strdup("-vn");
 417         argp[i++] = strdup("-acodec");
 418         argp[i++] = strdup("pcm_f32le");
 419         argp[i++] = strdup("-y");
 420         argp[i++] = strdup(outfile.c_str());
 421         argp[i++] = (char *)0;
 422         /* Note: argp is free()d in ~SystemExec */
 423 #if 1 /* DEBUG */
 424         if (debug_enable) { /* tentative debug mode */
 425         printf("EXTRACT AUDIO:\n");
 426         for (int i=0; i< 14; ++i) {
 427           printf("%s ", argp[i]);
 428         }
 429         printf("\n");
 430         }
 431 #endif
 432
 433         ffcmd = new SystemExec(ffmpeg_exe, argp);
 434         ffcmd->ReadStdout.connect_same_thread (*this, boost::bind (&TranscodeFfmpeg::ffmpegparse_a, this, _1 ,_2));
 435         ffcmd->Terminated.connect_same_thread (*this, boost::bind (&TranscodeFfmpeg::ffexit, this));
 436         if (ffcmd->start(2)) {
 437                 ffexit();
 438                 return false;
 439         }
 440         return true;
 441 }
 442
 443
 444 bool
 445 TranscodeFfmpeg::transcode (std::string outfile, const int outw, const int outh, const int kbitps)
 446 {
 447         if (!probeok) return false;
 448
 449         char **argp;
 450         int bitrate = kbitps;
 451         int width = outw;
 452         int height = outh;
 453
 454         if (width < 1 || width > m_width) { width = m_width; } /* don't allow upscaling */
 455         if (height < 1 || height > m_height) { height = floor(width / m_aspect); }
 456
 457         if (bitrate == 0) {
 458                 const double bitperpixel = .7; /* avg quality */
 459                 bitrate = floor(m_fps * width * height * bitperpixel / 10000.0);
 460         } else {
 461                 bitrate = bitrate / 10;
 462         }
 463         if (bitrate < 10)  bitrate = 10;
 464         if (bitrate > 1000) bitrate = 1000;
 465
 466         argp=(char**) calloc(16,sizeof(char*));
 467         argp[0] = strdup(ffmpeg_exe.c_str());
 468         argp[1] = strdup("-i");
 469         argp[2] = strdup(infile.c_str());
 470         argp[3] = strdup("-b:v");
 471         argp[4] = (char*) calloc(7,sizeof(char)); snprintf(argp[4], 7, "%i0k", bitrate);
 472         argp[5] = strdup("-s");
 473         argp[6] = (char*) calloc(10,sizeof(char)); snprintf(argp[6], 10, "%ix%i", width, height);
 474         argp[7] = strdup("-y");
 475         argp[8] = strdup("-vcodec");
 476         argp[9] = strdup("mjpeg");
 477         argp[10] = strdup("-an");
 478         argp[11] = strdup("-intra");
 479         argp[12] = strdup("-g");
 480         argp[13] = strdup("1");
 481         argp[14] = strdup(outfile.c_str());
 482         argp[15] = (char *)0;
 483         /* Note: these are free()d in ~SystemExec */
 484 #if 1 /* DEBUG */
 485         if (debug_enable) { /* tentative debug mode */
 486         printf("TRANSCODE VIDEO:\n");
 487         for (int i=0; i< 15; ++i) {
 488           printf("%s ", argp[i]);
 489         }
 490         printf("\n");
 491         }
 492 #endif
 493         ffcmd = new SystemExec(ffmpeg_exe, argp);
 494         ffcmd->ReadStdout.connect_same_thread (*this, boost::bind (&TranscodeFfmpeg::ffmpegparse_v, this, _1 ,_2));
 495         ffcmd->Terminated.connect_same_thread (*this, boost::bind (&TranscodeFfmpeg::ffexit, this));
 496         if (ffcmd->start(2)) {
 497                 ffexit();
 498                 return false;
 499         }
 500         return true;
 501 }
 502
 503 void
 504 TranscodeFfmpeg::cancel ()
 505 {
 506         if (!ffcmd || !ffcmd->is_running()) { return;}
 507         ffcmd->write_to_stdin("q");
 508 #ifdef WIN32
 509         Sleep(1000);
 510 #else
 511         sleep (1);
 512 #endif
 513         if (ffcmd) {
 514           ffcmd->terminate();
 515         }
 516 }
 517
 518 void
 519 TranscodeFfmpeg::ffexit ()
 520 {
 521         delete ffcmd;
 522         ffcmd=0;
 523         Finished(); /* EMIT SIGNAL */
 524 }
 525
 526 void
 527 TranscodeFfmpeg::ffprobeparse (std::string d, size_t /* s */)
 528 {
 529         ffoutput+=d;
 530 }
 531
 532 void
 533 TranscodeFfmpeg::ffmpegparse_a (std::string d, size_t /* s */)
 534 {
 535         const char *t;
 536         int h,m,s; char f[7];
 537         ARDOUR::framecnt_t p = -1;
 538
 539         if (!(t=strstr(d.c_str(), "time="))) { return; }
 540
 541         if (sscanf(t+5, "%d:%d:%d.%s",&h,&m,&s,f) == 4) {
 542                 p = (ARDOUR::framecnt_t) floor( 100.0 * (
 543                       h * 3600.0
 544                     + m * 60.0
 545                     + s * 1.0
 546                     + atoi(f) / pow(10, strlen(f))
 547                 ));
 548                 p = p * m_fps / 100.0;
 549                 if (p > m_duration ) { p = m_duration; }
 550                 Progress(p, m_duration); /* EMIT SIGNAL */
 551         } else {
 552                 Progress(0, 0); /* EMIT SIGNAL */
 553         }
 554 }
 555
 556 void
 557 TranscodeFfmpeg::ffmpegparse_v (std::string d, size_t /* s */)
 558 {
 559         if (strstr(d.c_str(), "ERROR") || strstr(d.c_str(), "Error") || strstr(d.c_str(), "error")) {
 560                 warning << "ffmpeg-error: " << d << endmsg;
 561         }
 562         if (strncmp(d.c_str(), "frame=",6)) {
 563 #if 1 /* DEBUG */
 564                 if (debug_enable) {
 565                         d.erase(d.find_last_not_of(" \t\r\n") + 1);
 566                   printf("ffmpeg: '%s'\n", d.c_str());
 567                 }
 568 #endif
 569                 Progress(0, 0); /* EMIT SIGNAL */
 570                 return;
 571         }
 572         ARDOUR::framecnt_t f = atol(d.substr(6));
 573         if (f == 0) {
 574                 Progress(0, 0); /* EMIT SIGNAL */
 575         } else {
 576                 Progress(f, m_duration); /* EMIT SIGNAL */
 577         }
 578 }