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