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 #ifdef SearchPath
  36 #undef SearchPath
  37 #endif
  38
  39 using namespace PBD;
  40
  41 TranscodeFfmpeg::TranscodeFfmpeg (std::string f)
  42         : infile(f)
  43 {
  44         probeok = false;
  45         ffexecok = false;
  46         ffmpeg_exe = "";
  47         ffprobe_exe = "";
  48         m_duration = 0;
  49         m_avoffset = m_lead_in = m_lead_out = 0;
  50         m_width = m_height = 0;
  51         m_aspect = m_fps = 0;
  52 #if 1 /* tentative debug mode */
  53         debug_enable = false;
  54 #endif
  55
  56         std::string ff_file_path;
  57         if (find_file_in_search_path (SearchPath(Glib::getenv("PATH")), X_("ffmpeg_harvid"), ff_file_path)) { ffmpeg_exe = ff_file_path; }
  58         else if (Glib::file_test(X_("C:\\Program Files\\harvid\\ffmpeg.exe"), Glib::FILE_TEST_EXISTS)) {
  59                 ffmpeg_exe = X_("C:\\Program Files\\ffmpeg\\ffmpeg.exe");
  60         }
  61         else if (Glib::file_test(X_("C:\\Program Files\\ffmpeg\\ffmpeg.exe"), Glib::FILE_TEST_EXISTS)) {
  62                 ffmpeg_exe = X_("C:\\Program Files\\ffmpeg\\ffmpeg.exe");
  63         }
  64
  65         if (find_file_in_search_path (SearchPath(Glib::getenv("PATH")), X_("ffprobe_harvid"), ff_file_path)) { ffprobe_exe = ff_file_path; }
  66         else if (Glib::file_test(X_("C:\\Program Files\\harvid\\ffprobe.exe"), Glib::FILE_TEST_EXISTS)) {
  67                 ffprobe_exe = X_("C:\\Program Files\\ffmpeg\\ffprobe.exe");
  68         }
  69         else if (Glib::file_test(X_("C:\\Program Files\\ffmpeg\\ffprobe.exe"), Glib::FILE_TEST_EXISTS)) {
  70                 ffprobe_exe = X_("C:\\Program Files\\ffmpeg\\ffprobe.exe");
  71         }
  72
  73         if (ffmpeg_exe.empty() || ffprobe_exe.empty()) {
  74                 warning << string_compose(
  75                                 _(
  76                                 "No ffprobe or ffmpeg executables could be found on this system.\n"
  77                                 "Video import and export is not possible until you install those tools.\n"
  78                                 "%1 requires ffmpeg and ffprobe from ffmpeg.org - version 1.1 or newer.\n"
  79                                 "\n"
  80                                 "The tools are included with the %1 releases from ardour.org "
  81                                 "and also available with the video-server at http://x42.github.com/harvid/\n"
  82                                 "\n"
  83                                 "Important: the files need to be installed in $PATH and named ffmpeg_harvid and ffprobe_harvid.\n"
  84                                 "If you already have a suitable ffmpeg installation on your system, we recommend creating "
  85                                 "symbolic links from ffmpeg to ffmpeg_harvid and from ffprobe to ffprobe_harvid.\n"
  86                                 ), PROGRAM_NAME) << endmsg;
  87                 return;
  88         }
  89         ffexecok = true;
  90
  91         if (infile.empty() || !probe()) {
  92                 return;
  93         }
  94         probeok = true;
  95 }
  96
  97 TranscodeFfmpeg::~TranscodeFfmpeg ()
  98 {
  99   ;
 100 }
 101
 102 bool
 103 TranscodeFfmpeg::probe ()
 104 {
 105         ffoutput = "";
 106         char **argp;
 107         argp=(char**) calloc(7,sizeof(char*));
 108         argp[0] = strdup(ffprobe_exe.c_str());
 109         argp[1] = strdup("-print_format");
 110         argp[2] = strdup("csv=nk=0");
 111         argp[3] = strdup("-show_format");
 112         argp[4] = strdup("-show_streams");
 113         argp[5] = strdup(infile.c_str());
 114         argp[6] = 0;
 115         ffcmd = new SystemExec(ffprobe_exe, argp);
 116         ffcmd->ReadStdout.connect_same_thread (*this, boost::bind (&TranscodeFfmpeg::ffprobeparse, this, _1 ,_2));
 117         ffcmd->Terminated.connect_same_thread (*this, boost::bind (&TranscodeFfmpeg::ffexit, this));
 118         if (ffcmd->start(1)) {
 119                 ffexit();
 120                 return false;
 121         }
 122
 123         /* wait for ffprobe process to exit */
 124         ffcmd->wait();
 125
 126         /* wait for interposer thread to copy all data.
 127          * SystemExec::Terminated is emitted and ffcmd set to NULL */
 128         int timeout = 300; // 1.5 sec
 129         while (ffcmd && --timeout > 0) {
 130                 Glib::usleep(5000);
 131         }
 132         if (timeout == 0 || ffoutput.empty()) {
 133                 return false;
 134         }
 135
 136         /* parse */
 137
 138         std::vector<std::vector<std::string> > lines;
 139         ParseCSV(ffoutput, lines);
 140         double timebase = 0;
 141         m_width = m_height = 0;
 142         m_fps = m_aspect = 0;
 143         m_duration = 0;
 144         m_codec.clear();
 145         m_audio.clear();
 146
 147 #define PARSE_FRACTIONAL_FPS(VAR) \
 148         { \
 149                 std::string::size_type pos; \
 150                 VAR = atof(value); \
 151                 pos = value.find_first_of('/'); \
 152                 if (pos != std::string::npos) { \
 153                         VAR = atof(value.substr(0, pos)) / atof(value.substr(pos+1)); \
 154                 } \
 155         }
 156
 157         for (std::vector<std::vector<std::string> >::iterator i = lines.begin(); i != lines.end(); ++i) {
 158                 if (i->at(0) == X_("format")) {
 159                         /* format,filename,#streams,format-name,format-long-name,start-time,duration,size,bitrate */
 160                 } else
 161                 if (i->at(0) == X_("stream")) {
 162                         if (i->at(5) == X_("codec_type=video") && m_width == 0) {
 163
 164                                 for (std::vector<std::string>::iterator kv = i->begin(); kv != i->end(); ++kv) {
 165                                         const size_t kvsep = kv->find('=');
 166                                         if(kvsep == std::string::npos) continue;
 167                                         std::string key = kv->substr(0, kvsep);
 168                                         std::string value = kv->substr(kvsep + 1);
 169
 170                                         if (key == X_("index")) {
 171                                                 m_videoidx = atoi(value);
 172                                         } else if (key == X_("width")) {
 173                                                 m_width = atoi(value);
 174                                         } else if (key == X_("height")) {
 175                                                 m_height = atoi(value);
 176                                         } else if (key == X_("codec_name")) {
 177                                                 if (!m_codec.empty()) m_codec += " ";
 178                                                 m_codec += value;
 179                                         } else if (key == X_("codec_long_name")) {
 180                                                 if (!m_codec.empty()) m_codec += " ";
 181                                                 m_codec += "[" + value + "]";
 182                                         } else if (key == X_("codec_tag_string")) {
 183                                                 if (!m_codec.empty()) m_codec += " ";
 184                                                 m_codec += "(" + value + ")";
 185                                         } else if (key == X_("r_frame_rate")) {
 186                                                 PARSE_FRACTIONAL_FPS(m_fps)
 187                                         } else if (key == X_("avg_frame_rate") && m_fps == 0) {
 188                                                 PARSE_FRACTIONAL_FPS(m_fps)
 189                                         } else if (key == X_("time_base")) {
 190                                                 PARSE_FRACTIONAL_FPS(timebase)
 191                                         } else if (key == X_("timecode") && m_duration == 0) {
 192                                                 int h,m,s; char f[7];
 193                                                 if (sscanf(i->at(16).c_str(), "%d:%d:%d:%s",&h,&m,&s,f) == 4) {
 194                                                         m_duration = (ARDOUR::framecnt_t) floor(m_fps * (
 195                                                                         h * 3600.0
 196                                                                 + m * 60.0
 197                                                                 + s * 1.0
 198                                                                 + atoi(f) / pow(10, strlen(f))
 199                                                         ));
 200                                                 }
 201                                         } else if (key == X_("duration_ts") && m_fps == 0 && timebase !=0 ) {
 202                                                 m_duration = atof(value) * m_fps * timebase;
 203                                         } else if (key == X_("duration") && m_fps != 0 && m_duration == 0) {
 204                                                 m_duration = atof(value) * m_fps;
 205                                         } else if (key == X_("display_aspect_ratio")) {
 206                                                 std::string::size_type pos;
 207                                                 pos = value.find_first_of(':');
 208                                                 if (pos != std::string::npos && atof(value.substr(pos+1)) != 0) {
 209                                                         m_aspect = atof(value.substr(0, pos)) / atof(value.substr(pos+1));
 210                                                 }
 211                                         }
 212                                 }
 213
 214                                 if (m_aspect == 0) {
 215                                         m_aspect = (double)m_width / (double)m_height;
 216                                 }
 217
 218                         } else if (i->at(5) == X_("codec_type=audio")) { /* new ffprobe */
 219                                 FFAudioStream as;
 220                                 for (std::vector<std::string>::iterator kv = i->begin(); kv != i->end(); ++kv) {
 221                                         const size_t kvsep = kv->find('=');
 222                                         if(kvsep == std::string::npos) continue;
 223                                         std::string key = kv->substr(0, kvsep);
 224                                         std::string value = kv->substr(kvsep + 1);
 225
 226                                         if (key == X_("channels")) {
 227                                                 as.channels   = atoi(value);
 228                                         } else if (key == X_("index")) {
 229                                                 as.stream_id  = value;
 230                                         } else if (key == X_("codec_long_name")) {
 231                                                 if (!as.name.empty()) as.name += " ";
 232                                                 as.name += value;
 233                                         } else if (key == X_("codec_name")) {
 234                                                 if (!as.name.empty()) as.name += " ";
 235                                                 as.name += value;
 236                                         } else if (key == X_("sample_fmt")) {
 237                                                 if (!as.name.empty()) as.name += " ";
 238                                                 as.name += "FMT:" + value;
 239                                         } else if (key == X_("sample_rate")) {
 240                                                 if (!as.name.empty()) as.name += " ";
 241                                                 as.name += "SR:" + value;
 242                                         }
 243
 244                                 }
 245                                 m_audio.push_back(as);
 246                         }
 247                 }
 248         }
 249         /* end parse */
 250
 251 #if 0 /* DEBUG */
 252         printf("FPS: %f\n", m_fps);
 253         printf("Duration: %lu frames\n",(unsigned long)m_duration);
 254         printf("W/H: %ix%i\n",m_width, m_height);
 255         printf("aspect: %f\n",m_aspect);
 256         printf("codec: %s\n",m_codec.c_str());
 257         if (m_audio.size() > 0) {
 258                 for (AudioStreams::iterator it = m_audio.begin(); it < m_audio.end(); ++it) {
 259                         printf("audio: %s - %i channels\n",(*it).stream_id.c_str(), (*it).channels);
 260                 }
 261         } else {
 262           printf("audio: no audio streams in file.\n");
 263         }
 264 #endif
 265
 266         return true;
 267 }
 268
 269 TranscodeFfmpeg::FFSettings
 270 TranscodeFfmpeg::default_encoder_settings ()
 271 {
 272         TranscodeFfmpeg::FFSettings ffs;
 273         ffs.clear();
 274         ffs["-vcodec"] = "mpeg4";
 275         ffs["-acodec"] = "ac3";
 276         ffs["-b:v"] = "5000k";
 277         ffs["-b:a"] = "160k";
 278         return ffs;
 279 }
 280
 281 TranscodeFfmpeg::FFSettings
 282 TranscodeFfmpeg::default_meta_data ()
 283 {
 284         TranscodeFfmpeg::FFSettings ffm;
 285         ffm.clear();
 286         ffm["comment"] = "Created with ardour";
 287         return ffm;
 288 }
 289
 290 char *
 291 TranscodeFfmpeg::format_metadata (std::string key, std::string value)
 292 {
 293         size_t start_pos = 0;
 294         std::string v1 = value;
 295         while((start_pos = v1.find_first_not_of(
 296                         "abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789(),.\"'",
 297                         start_pos)) != std::string::npos)
 298         {
 299                 v1.replace(start_pos, 1, "_");
 300                 start_pos += 1;
 301         }
 302
 303         start_pos = 0;
 304         while((start_pos = v1.find("\"", start_pos)) != std::string::npos) {
 305                 v1.replace(start_pos, 1, "\\\"");
 306                 start_pos += 2;
 307         }
 308
 309         size_t len = key.length() + v1.length() + 4;
 310         char *mds = (char*) calloc(len, sizeof(char));
 311         snprintf(mds, len, "%s=\"%s\"", key.c_str(), v1.c_str());
 312         return mds;
 313 }
 314
 315 bool
 316 TranscodeFfmpeg::encode (std::string outfile, std::string inf_a, std::string inf_v, TranscodeFfmpeg::FFSettings ffs, TranscodeFfmpeg::FFSettings meta, bool map)
 317 {
 318 #define MAX_FFMPEG_ENCODER_ARGS (100)
 319         char **argp;
 320         int a=0;
 321
 322         argp=(char**) calloc(MAX_FFMPEG_ENCODER_ARGS,sizeof(char*));
 323         argp[a++] = strdup(ffmpeg_exe.c_str());
 324         if (m_avoffset < 0 || m_avoffset > 0) {
 325                 std::ostringstream osstream; osstream << m_avoffset;
 326                 argp[a++] = strdup("-itsoffset");
 327                 argp[a++] = strdup(osstream.str().c_str());
 328         }
 329         argp[a++] = strdup("-i");
 330         argp[a++] = strdup(inf_v.c_str());
 331
 332         argp[a++] = strdup("-i");
 333         argp[a++] = strdup(inf_a.c_str());
 334
 335         for(TranscodeFfmpeg::FFSettings::const_iterator it = ffs.begin(); it != ffs.end(); ++it) {
 336                 argp[a++] = strdup(it->first.c_str());
 337                 argp[a++] = strdup(it->second.c_str());
 338         }
 339         for(TranscodeFfmpeg::FFSettings::const_iterator it = meta.begin(); it != meta.end(); ++it) {
 340                 argp[a++] = strdup("-metadata");
 341                 argp[a++] = format_metadata(it->first.c_str(), it->second.c_str());
 342         }
 343         if (m_lead_in != 0 && m_lead_out != 0) {
 344                 std::ostringstream osstream;
 345                 argp[a++] = strdup("-vf");
 346                 osstream << X_("color=c=black:s=") << m_width << X_("x") << m_height << X_(":d=") << m_lead_in << X_(" [pre]; ");
 347                 osstream << X_("color=c=black:s=") << m_width << X_("x") << m_height << X_(":d=") << m_lead_out << X_(" [post]; ");
 348                 osstream << X_("[pre] [in] [post] concat=n=3");
 349                 argp[a++] = strdup(osstream.str().c_str());
 350         } else if (m_lead_in != 0) {
 351                 std::ostringstream osstream;
 352                 argp[a++] = strdup("-vf");
 353                 osstream << X_("color=c=black:s=") << m_width << X_("x") << m_height << X_(":d=") << m_lead_in << X_(" [pre]; ");
 354                 osstream << X_("[pre] [in] concat=n=2");
 355                 argp[a++] = strdup(osstream.str().c_str());
 356         } else if (m_lead_out != 0) {
 357                 std::ostringstream osstream;
 358                 argp[a++] = strdup("-vf");
 359                 osstream << X_("color=c=black:s=") << m_width << X_("x") << m_height << X_(":d=") << m_lead_out << X_(" [post]; ");
 360                 osstream << X_("[in] [post] concat=n=2");
 361                 argp[a++] = strdup(osstream.str().c_str());
 362         }
 363
 364         if (map) {
 365                 std::ostringstream osstream;
 366                 argp[a++] = strdup("-map");
 367                 osstream << X_("0:") << m_videoidx;
 368                 argp[a++] = strdup(osstream.str().c_str());
 369                 argp[a++] = strdup("-map");
 370                 argp[a++] = strdup("1:0");
 371         }
 372
 373         argp[a++] = strdup("-y");
 374         argp[a++] = strdup(outfile.c_str());
 375         argp[a] = (char *)0;
 376         assert(a<MAX_FFMPEG_ENCODER_ARGS);
 377         /* Note: these are free()d in ~SystemExec */
 378 #if 1 /* DEBUG */
 379         if (debug_enable) { /* tentative debug mode */
 380         printf("EXPORT ENCODE:\n");
 381         for (int i=0; i< a; ++i) {
 382           printf("%s ", argp[i]);
 383         }
 384         printf("\n");
 385         }
 386 #endif
 387
 388         ffcmd = new SystemExec(ffmpeg_exe, argp);
 389         ffcmd->ReadStdout.connect_same_thread (*this, boost::bind (&TranscodeFfmpeg::ffmpegparse_v, this, _1 ,_2));
 390         ffcmd->Terminated.connect_same_thread (*this, boost::bind (&TranscodeFfmpeg::ffexit, this));
 391         if (ffcmd->start(2)) {
 392                 ffexit();
 393                 return false;
 394         }
 395         return true;
 396 }
 397
 398 bool
 399 TranscodeFfmpeg::extract_audio (std::string outfile, ARDOUR::framecnt_t /*samplerate*/, unsigned int stream)
 400 {
 401         if (!probeok) return false;
 402   if (stream >= m_audio.size()) return false;
 403
 404         char **argp;
 405         int i = 0;
 406
 407         argp=(char**) calloc(15,sizeof(char*));
 408         argp[i++] = strdup(ffmpeg_exe.c_str());
 409         argp[i++] = strdup("-i");
 410         argp[i++] = strdup(infile.c_str());
 411 #if 0 /* ffmpeg write original samplerate, use a3/SRC to resample */
 412         argp[i++] = strdup("-ar");
 413         argp[i] = (char*) calloc(7,sizeof(char)); snprintf(argp[i++], 7, "%"PRId64, samplerate);
 414 #endif
 415         argp[i++] = strdup("-ac");
 416         argp[i] = (char*) calloc(3,sizeof(char)); snprintf(argp[i++], 3, "%i", m_audio.at(stream).channels);
 417         argp[i++] = strdup("-map");
 418         argp[i] = (char*) calloc(8,sizeof(char)); snprintf(argp[i++], 8, "0:%s", m_audio.at(stream).stream_id.c_str());
 419         argp[i++] = strdup("-vn");
 420         argp[i++] = strdup("-acodec");
 421         argp[i++] = strdup("pcm_f32le");
 422         argp[i++] = strdup("-y");
 423         argp[i++] = strdup(outfile.c_str());
 424         argp[i++] = (char *)0;
 425         /* Note: argp is free()d in ~SystemExec */
 426 #if 1 /* DEBUG */
 427         if (debug_enable) { /* tentative debug mode */
 428         printf("EXTRACT AUDIO:\n");
 429         for (int i=0; i< 14; ++i) {
 430           printf("%s ", argp[i]);
 431         }
 432         printf("\n");
 433         }
 434 #endif
 435
 436         ffcmd = new SystemExec(ffmpeg_exe, argp);
 437         ffcmd->ReadStdout.connect_same_thread (*this, boost::bind (&TranscodeFfmpeg::ffmpegparse_a, this, _1 ,_2));
 438         ffcmd->Terminated.connect_same_thread (*this, boost::bind (&TranscodeFfmpeg::ffexit, this));
 439         if (ffcmd->start(2)) {
 440                 ffexit();
 441                 return false;
 442         }
 443         return true;
 444 }
 445
 446
 447 bool
 448 TranscodeFfmpeg::transcode (std::string outfile, const int outw, const int outh, const int kbitps)
 449 {
 450         if (!probeok) return false;
 451
 452         char **argp;
 453         int bitrate = kbitps;
 454         int width = outw;
 455         int height = outh;
 456
 457         if (width < 1 || width > m_width) { width = m_width; } /* don't allow upscaling */
 458         if (height < 1 || height > m_height) { height = floor(width / m_aspect); }
 459
 460         if (bitrate == 0) {
 461                 const double bitperpixel = .7; /* avg quality */
 462                 bitrate = floor(m_fps * width * height * bitperpixel / 10000.0);
 463         } else {
 464                 bitrate = bitrate / 10;
 465         }
 466         if (bitrate < 10)  bitrate = 10;
 467         if (bitrate > 1000) bitrate = 1000;
 468
 469         argp=(char**) calloc(16,sizeof(char*));
 470         argp[0] = strdup(ffmpeg_exe.c_str());
 471         argp[1] = strdup("-i");
 472         argp[2] = strdup(infile.c_str());
 473         argp[3] = strdup("-b:v");
 474         argp[4] = (char*) calloc(7,sizeof(char)); snprintf(argp[4], 7, "%i0k", bitrate);
 475         argp[5] = strdup("-s");
 476         argp[6] = (char*) calloc(10,sizeof(char)); snprintf(argp[6], 10, "%ix%i", width, height);
 477         argp[7] = strdup("-y");
 478         argp[8] = strdup("-vcodec");
 479         argp[9] = strdup("mjpeg");
 480         argp[10] = strdup("-an");
 481         argp[11] = strdup("-intra");
 482         argp[12] = strdup("-g");
 483         argp[13] = strdup("1");
 484         argp[14] = strdup(outfile.c_str());
 485         argp[15] = (char *)0;
 486         /* Note: these are free()d in ~SystemExec */
 487 #if 1 /* DEBUG */
 488         if (debug_enable) { /* tentative debug mode */
 489         printf("TRANSCODE VIDEO:\n");
 490         for (int i=0; i< 15; ++i) {
 491           printf("%s ", argp[i]);
 492         }
 493         printf("\n");
 494         }
 495 #endif
 496         ffcmd = new SystemExec(ffmpeg_exe, argp);
 497         ffcmd->ReadStdout.connect_same_thread (*this, boost::bind (&TranscodeFfmpeg::ffmpegparse_v, this, _1 ,_2));
 498         ffcmd->Terminated.connect_same_thread (*this, boost::bind (&TranscodeFfmpeg::ffexit, this));
 499         if (ffcmd->start(2)) {
 500                 ffexit();
 501                 return false;
 502         }
 503         return true;
 504 }
 505
 506 void
 507 TranscodeFfmpeg::cancel ()
 508 {
 509         if (!ffcmd || !ffcmd->is_running()) { return;}
 510         ffcmd->write_to_stdin("q");
 511 #ifdef WIN32
 512         Sleep(1000);
 513 #else
 514         sleep (1);
 515 #endif
 516         if (ffcmd) {
 517           ffcmd->terminate();
 518         }
 519 }
 520
 521 void
 522 TranscodeFfmpeg::ffexit ()
 523 {
 524         delete ffcmd;
 525         ffcmd=0;
 526         Finished(); /* EMIT SIGNAL */
 527 }
 528
 529 void
 530 TranscodeFfmpeg::ffprobeparse (std::string d, size_t /* s */)
 531 {
 532         ffoutput+=d;
 533 }
 534
 535 void
 536 TranscodeFfmpeg::ffmpegparse_a (std::string d, size_t /* s */)
 537 {
 538         const char *t;
 539         int h,m,s; char f[7];
 540         ARDOUR::framecnt_t p = -1;
 541
 542         if (!(t=strstr(d.c_str(), "time="))) { return; }
 543
 544         if (sscanf(t+5, "%d:%d:%d.%s",&h,&m,&s,f) == 4) {
 545                 p = (ARDOUR::framecnt_t) floor( 100.0 * (
 546                       h * 3600.0
 547                     + m * 60.0
 548                     + s * 1.0
 549                     + atoi(f) / pow(10, strlen(f))
 550                 ));
 551                 p = p * m_fps / 100.0;
 552                 if (p > m_duration ) { p = m_duration; }
 553                 Progress(p, m_duration); /* EMIT SIGNAL */
 554         } else {
 555                 Progress(0, 0); /* EMIT SIGNAL */
 556         }
 557 }
 558
 559 void
 560 TranscodeFfmpeg::ffmpegparse_v (std::string d, size_t /* s */)
 561 {
 562         if (strstr(d.c_str(), "ERROR") || strstr(d.c_str(), "Error") || strstr(d.c_str(), "error")) {
 563                 warning << "ffmpeg-error: " << d << endmsg;
 564         }
 565         if (strncmp(d.c_str(), "frame=",6)) {
 566 #if 1 /* DEBUG */
 567                 if (debug_enable) {
 568                         d.erase(d.find_last_not_of(" \t\r\n") + 1);
 569                   printf("ffmpeg: '%s'\n", d.c_str());
 570                 }
 571 #endif
 572                 Progress(0, 0); /* EMIT SIGNAL */
 573                 return;
 574         }
 575         ARDOUR::framecnt_t f = atol(d.substr(6));
 576         if (f == 0) {
 577                 Progress(0, 0); /* EMIT SIGNAL */
 578         } else {
 579                 Progress(f, m_duration); /* EMIT SIGNAL */
 580         }
 581 }