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         m_sar = "";
  50 #if 1 /* tentative debug mode */
  51         debug_enable = false;
  52 #endif
  53
  54         std::string ff_file_path;
  55         if (find_file (Searchpath(Glib::getenv("PATH")), X_("ffmpeg_harvid"), ff_file_path)) { ffmpeg_exe = ff_file_path; }
  56         else if (Glib::file_test(X_("C:\\Program Files\\harvid\\ffmpeg.exe"), Glib::FILE_TEST_EXISTS)) {
  57                 ffmpeg_exe = X_("C:\\Program Files\\ffmpeg\\ffmpeg.exe");
  58         }
  59         else if (Glib::file_test(X_("C:\\Program Files\\ffmpeg\\ffmpeg.exe"), Glib::FILE_TEST_EXISTS)) {
  60                 ffmpeg_exe = X_("C:\\Program Files\\ffmpeg\\ffmpeg.exe");
  61         }
  62
  63         if (find_file (Searchpath(Glib::getenv("PATH")), X_("ffprobe_harvid"), ff_file_path)) { ffprobe_exe = ff_file_path; }
  64         else if (Glib::file_test(X_("C:\\Program Files\\harvid\\ffprobe.exe"), Glib::FILE_TEST_EXISTS)) {
  65                 ffprobe_exe = X_("C:\\Program Files\\ffmpeg\\ffprobe.exe");
  66         }
  67         else if (Glib::file_test(X_("C:\\Program Files\\ffmpeg\\ffprobe.exe"), Glib::FILE_TEST_EXISTS)) {
  68                 ffprobe_exe = X_("C:\\Program Files\\ffmpeg\\ffprobe.exe");
  69         }
  70
  71         if (ffmpeg_exe.empty() || ffprobe_exe.empty()) {
  72                 warning << string_compose(
  73                                 _(
  74                                         "No ffprobe or ffmpeg executables could be found on this system.\n"
  75                                         "Video import and export is not possible until you install those tools.\n"
  76                                         "%1 requires ffmpeg and ffprobe from ffmpeg.org - version 1.1 or newer.\n"
  77                                         "\n"
  78                                         "The tools are included with the %1 releases from ardour.org "
  79                                         "and also available with the video-server at http://x42.github.com/harvid/\n"
  80                                         "\n"
  81                                         "Important: the files need to be installed in $PATH and named ffmpeg_harvid and ffprobe_harvid.\n"
  82                                         "If you already have a suitable ffmpeg installation on your system, we recommend creating "
  83                                         "symbolic links from ffmpeg to ffmpeg_harvid and from ffprobe to ffprobe_harvid.\n"
  84                                         "\n"
  85                                         "see also http://manual.ardour.org/video-timeline/setup/"
  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 ARDOUR::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_sar.clear();
 145         m_codec.clear();
 146         m_audio.clear();
 147
 148 #define PARSE_FRACTIONAL_FPS(VAR) \
 149         { \
 150                 std::string::size_type pos; \
 151                 VAR = atof(value); \
 152                 pos = value.find_first_of('/'); \
 153                 if (pos != std::string::npos) { \
 154                         VAR = atof(value.substr(0, pos)) / atof(value.substr(pos+1)); \
 155                 } \
 156         }
 157
 158         for (std::vector<std::vector<std::string> >::iterator i = lines.begin(); i != lines.end(); ++i) {
 159                 if (i->at(0) == X_("format")) {
 160                         /* format,filename,#streams,format-name,format-long-name,start-time,duration,size,bitrate */
 161                 } else
 162                 if (i->at(0) == X_("stream")) {
 163                         if (i->at(5) == X_("codec_type=video") && m_width == 0) {
 164
 165                                 for (std::vector<std::string>::iterator kv = i->begin(); kv != i->end(); ++kv) {
 166                                         const size_t kvsep = kv->find('=');
 167                                         if(kvsep == std::string::npos) continue;
 168                                         std::string key = kv->substr(0, kvsep);
 169                                         std::string value = kv->substr(kvsep + 1);
 170
 171                                         if (key == X_("index")) {
 172                                                 m_videoidx = atoi(value);
 173                                         } else if (key == X_("width")) {
 174                                                 m_width = atoi(value);
 175                                         } else if (key == X_("height")) {
 176                                                 m_height = atoi(value);
 177                                         } else if (key == X_("codec_name")) {
 178                                                 if (!m_codec.empty()) m_codec += " ";
 179                                                 m_codec += value;
 180                                         } else if (key == X_("codec_long_name")) {
 181                                                 if (!m_codec.empty()) m_codec += " ";
 182                                                 m_codec += "[" + value + "]";
 183                                         } else if (key == X_("codec_tag_string")) {
 184                                                 if (!m_codec.empty()) m_codec += " ";
 185                                                 m_codec += "(" + value + ")";
 186                                         } else if (key == X_("r_frame_rate")) {
 187                                                 PARSE_FRACTIONAL_FPS(m_fps)
 188                                         } else if (key == X_("avg_frame_rate") && m_fps == 0) {
 189                                                 PARSE_FRACTIONAL_FPS(m_fps)
 190                                         } else if (key == X_("time_base")) {
 191                                                 PARSE_FRACTIONAL_FPS(timebase)
 192                                         } else if (key == X_("timecode") && m_duration == 0) {
 193                                                 int h,m,s; char f[7];
 194                                                 if (sscanf(i->at(16).c_str(), "%d:%d:%d:%s",&h,&m,&s,f) == 4) {
 195                                                         m_duration = (ARDOUR::framecnt_t) floor(m_fps * (
 196                                                                         h * 3600.0
 197                                                                 + m * 60.0
 198                                                                 + s * 1.0
 199                                                                 + atoi(f) / pow((double)10, (int)strlen(f))
 200                                                         ));
 201                                                 }
 202                                         } else if (key == X_("duration_ts") && m_fps == 0 && timebase !=0 ) {
 203                                                 m_duration = atof(value) * m_fps * timebase;
 204                                         } else if (key == X_("duration") && m_fps != 0 && m_duration == 0) {
 205                                                 m_duration = atof(value) * m_fps;
 206                                         } else if (key == X_("sample_aspect_ratio")) {
 207                                                 std::string::size_type pos;
 208                                                 pos = value.find_first_of(':');
 209                                                 if (pos != std::string::npos && atof(value.substr(pos+1)) != 0) {
 210                                                         m_sar = value;
 211                                                         m_sar.replace(pos, 1, "/");
 212                                                 }
 213                                         } else if (key == X_("display_aspect_ratio")) {
 214                                                 std::string::size_type pos;
 215                                                 pos = value.find_first_of(':');
 216                                                 if (pos != std::string::npos && atof(value.substr(pos+1)) != 0) {
 217                                                         m_aspect = atof(value.substr(0, pos)) / atof(value.substr(pos+1));
 218                                                 }
 219                                         }
 220                                 }
 221
 222                                 if (m_aspect == 0) {
 223                                         m_aspect = (double)m_width / (double)m_height;
 224                                 }
 225
 226                         } else if (i->at(5) == X_("codec_type=audio")) { /* new ffprobe */
 227                                 FFAudioStream as;
 228                                 for (std::vector<std::string>::iterator kv = i->begin(); kv != i->end(); ++kv) {
 229                                         const size_t kvsep = kv->find('=');
 230                                         if(kvsep == std::string::npos) continue;
 231                                         std::string key = kv->substr(0, kvsep);
 232                                         std::string value = kv->substr(kvsep + 1);
 233
 234                                         if (key == X_("channels")) {
 235                                                 as.channels   = atoi(value);
 236                                         } else if (key == X_("index")) {
 237                                                 as.stream_id  = value;
 238                                         } else if (key == X_("codec_long_name")) {
 239                                                 if (!as.name.empty()) as.name += " ";
 240                                                 as.name += value;
 241                                         } else if (key == X_("codec_name")) {
 242                                                 if (!as.name.empty()) as.name += " ";
 243                                                 as.name += value;
 244                                         } else if (key == X_("sample_fmt")) {
 245                                                 if (!as.name.empty()) as.name += " ";
 246                                                 as.name += "FMT:" + value;
 247                                         } else if (key == X_("sample_rate")) {
 248                                                 if (!as.name.empty()) as.name += " ";
 249                                                 as.name += "SR:" + value;
 250                                         }
 251
 252                                 }
 253                                 m_audio.push_back(as);
 254                         }
 255                 }
 256         }
 257         /* end parse */
 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 ardour";
 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         snprintf(mds, len, "%s=\"%s\"", key.c_str(), v1.c_str());
 320         return mds;
 321 }
 322
 323 bool
 324 TranscodeFfmpeg::encode (std::string outfile, std::string inf_a, std::string inf_v, TranscodeFfmpeg::FFSettings ffs, TranscodeFfmpeg::FFSettings meta, bool map)
 325 {
 326 #define MAX_FFMPEG_ENCODER_ARGS (100)
 327         char **argp;
 328         int a=0;
 329
 330         argp=(char**) calloc(MAX_FFMPEG_ENCODER_ARGS,sizeof(char*));
 331         argp[a++] = strdup(ffmpeg_exe.c_str());
 332         if (m_avoffset < 0 || m_avoffset > 0) {
 333                 std::ostringstream osstream; osstream << m_avoffset;
 334                 argp[a++] = strdup("-itsoffset");
 335                 argp[a++] = strdup(osstream.str().c_str());
 336         }
 337         argp[a++] = strdup("-i");
 338         argp[a++] = strdup(inf_v.c_str());
 339
 340         argp[a++] = strdup("-i");
 341         argp[a++] = strdup(inf_a.c_str());
 342
 343         for(TranscodeFfmpeg::FFSettings::const_iterator it = ffs.begin(); it != ffs.end(); ++it) {
 344                 argp[a++] = strdup(it->first.c_str());
 345                 argp[a++] = strdup(it->second.c_str());
 346         }
 347         for(TranscodeFfmpeg::FFSettings::const_iterator it = meta.begin(); it != meta.end(); ++it) {
 348                 argp[a++] = strdup("-metadata");
 349                 argp[a++] = format_metadata(it->first.c_str(), it->second.c_str());
 350         }
 351         if (m_lead_in != 0 && m_lead_out != 0) {
 352                 std::ostringstream osstream;
 353                 argp[a++] = strdup("-vf");
 354                 osstream << X_("color=c=black:s=") << m_width << X_("x") << m_height << X_(":d=") << m_lead_in;
 355                 if (!m_sar.empty()) osstream << X_(":sar=") << m_sar;
 356                 osstream << X_(" [pre]; ");
 357                 osstream << X_("color=c=black:s=") << m_width << X_("x") << m_height << X_(":d=") << m_lead_out;
 358                 if (!m_sar.empty()) osstream << X_(":sar=") << m_sar;
 359                 osstream << X_(" [post]; ");
 360                 osstream << X_("[pre] [in] [post] concat=n=3");
 361                 argp[a++] = strdup(osstream.str().c_str());
 362         } else if (m_lead_in != 0) {
 363                 std::ostringstream osstream;
 364                 argp[a++] = strdup("-vf");
 365                 osstream << X_("color=c=black:s=") << m_width << X_("x") << m_height << X_(":d=") << m_lead_in;
 366                 if (!m_sar.empty()) osstream << X_(":sar=") << m_sar;
 367                 osstream << X_(" [pre]; ");
 368                 osstream << X_("[pre] [in] concat=n=2");
 369                 argp[a++] = strdup(osstream.str().c_str());
 370         } else if (m_lead_out != 0) {
 371                 std::ostringstream osstream;
 372                 argp[a++] = strdup("-vf");
 373                 osstream << X_("color=c=black:s=") << m_width << X_("x") << m_height << X_(":d=") << m_lead_out;
 374                 if (!m_sar.empty()) osstream << X_(":sar=") << m_sar;
 375                 osstream << X_(" [post]; ");
 376                 osstream << X_("[in] [post] concat=n=2");
 377                 argp[a++] = strdup(osstream.str().c_str());
 378         }
 379
 380         if (map) {
 381                 std::ostringstream osstream;
 382                 argp[a++] = strdup("-map");
 383                 osstream << X_("0:") << m_videoidx;
 384                 argp[a++] = strdup(osstream.str().c_str());
 385                 argp[a++] = strdup("-map");
 386                 argp[a++] = strdup("1:0");
 387         }
 388
 389         argp[a++] = strdup("-y");
 390         argp[a++] = strdup(outfile.c_str());
 391         argp[a] = (char *)0;
 392         assert(a<MAX_FFMPEG_ENCODER_ARGS);
 393         /* Note: these are free()d in ~SystemExec */
 394 #if 1 /* DEBUG */
 395         if (debug_enable) { /* tentative debug mode */
 396         printf("EXPORT ENCODE:\n");
 397         for (int i=0; i< a; ++i) {
 398           printf("%s ", argp[i]);
 399         }
 400         printf("\n");
 401         }
 402 #endif
 403
 404         ffcmd = new ARDOUR::SystemExec(ffmpeg_exe, argp);
 405         ffcmd->ReadStdout.connect_same_thread (*this, boost::bind (&TranscodeFfmpeg::ffmpegparse_v, this, _1 ,_2));
 406         ffcmd->Terminated.connect_same_thread (*this, boost::bind (&TranscodeFfmpeg::ffexit, this));
 407         if (ffcmd->start(2)) {
 408                 ffexit();
 409                 return false;
 410         }
 411         return true;
 412 }
 413
 414 bool
 415 TranscodeFfmpeg::extract_audio (std::string outfile, ARDOUR::framecnt_t /*samplerate*/, unsigned int stream)
 416 {
 417         if (!probeok) return false;
 418   if (stream >= m_audio.size()) return false;
 419
 420         char **argp;
 421         int i = 0;
 422
 423         argp=(char**) calloc(15,sizeof(char*));
 424         argp[i++] = strdup(ffmpeg_exe.c_str());
 425         argp[i++] = strdup("-i");
 426         argp[i++] = strdup(infile.c_str());
 427 #if 0 /* ffmpeg write original samplerate, use a3/SRC to resample */
 428         argp[i++] = strdup("-ar");
 429         argp[i] = (char*) calloc(7,sizeof(char)); snprintf(argp[i++], 7, "%"PRId64, samplerate);
 430 #endif
 431         argp[i++] = strdup("-ac");
 432         argp[i] = (char*) calloc(3,sizeof(char)); snprintf(argp[i++], 3, "%i", m_audio.at(stream).channels);
 433         argp[i++] = strdup("-map");
 434         argp[i] = (char*) calloc(8,sizeof(char)); snprintf(argp[i++], 8, "0:%s", m_audio.at(stream).stream_id.c_str());
 435         argp[i++] = strdup("-vn");
 436         argp[i++] = strdup("-acodec");
 437         argp[i++] = strdup("pcm_f32le");
 438         argp[i++] = strdup("-y");
 439         argp[i++] = strdup(outfile.c_str());
 440         argp[i++] = (char *)0;
 441         /* Note: argp is free()d in ~SystemExec */
 442 #if 1 /* DEBUG */
 443         if (debug_enable) { /* tentative debug mode */
 444         printf("EXTRACT AUDIO:\n");
 445         for (int i=0; i< 14; ++i) {
 446           printf("%s ", argp[i]);
 447         }
 448         printf("\n");
 449         }
 450 #endif
 451
 452         ffcmd = new ARDOUR::SystemExec(ffmpeg_exe, argp);
 453         ffcmd->ReadStdout.connect_same_thread (*this, boost::bind (&TranscodeFfmpeg::ffmpegparse_a, this, _1 ,_2));
 454         ffcmd->Terminated.connect_same_thread (*this, boost::bind (&TranscodeFfmpeg::ffexit, this));
 455         if (ffcmd->start(2)) {
 456                 ffexit();
 457                 return false;
 458         }
 459         return true;
 460 }
 461
 462
 463 bool
 464 TranscodeFfmpeg::transcode (std::string outfile, const int outw, const int outh, const int kbitps)
 465 {
 466         if (!probeok) return false;
 467
 468         char **argp;
 469         int bitrate = kbitps;
 470         int width = outw;
 471         int height = outh;
 472
 473         if (width < 1 || width > m_width) { width = m_width; } /* don't allow upscaling */
 474         if (height < 1 || height > m_height) { height = floor(width / m_aspect); }
 475
 476         if (bitrate == 0) {
 477                 const double bitperpixel = .7; /* avg quality */
 478                 bitrate = floor(m_fps * width * height * bitperpixel / 10000.0);
 479         } else {
 480                 bitrate = bitrate / 10;
 481         }
 482         if (bitrate < 10)  bitrate = 10;
 483         if (bitrate > 1000) bitrate = 1000;
 484
 485         argp=(char**) calloc(16,sizeof(char*));
 486         argp[0] = strdup(ffmpeg_exe.c_str());
 487         argp[1] = strdup("-i");
 488         argp[2] = strdup(infile.c_str());
 489         argp[3] = strdup("-b:v");
 490         argp[4] = (char*) calloc(7,sizeof(char)); snprintf(argp[4], 7, "%i0k", bitrate);
 491         argp[5] = strdup("-s");
 492         argp[6] = (char*) calloc(10,sizeof(char)); snprintf(argp[6], 10, "%ix%i", width, height);
 493         argp[7] = strdup("-y");
 494         argp[8] = strdup("-vcodec");
 495         argp[9] = strdup("mjpeg");
 496         argp[10] = strdup("-an");
 497         argp[11] = strdup("-intra");
 498         argp[12] = strdup("-g");
 499         argp[13] = strdup("1");
 500         argp[14] = strdup(outfile.c_str());
 501         argp[15] = (char *)0;
 502         /* Note: these are free()d in ~SystemExec */
 503 #if 1 /* DEBUG */
 504         if (debug_enable) { /* tentative debug mode */
 505         printf("TRANSCODE VIDEO:\n");
 506         for (int i=0; i< 15; ++i) {
 507           printf("%s ", argp[i]);
 508         }
 509         printf("\n");
 510         }
 511 #endif
 512         ffcmd = new ARDOUR::SystemExec(ffmpeg_exe, argp);
 513         ffcmd->ReadStdout.connect_same_thread (*this, boost::bind (&TranscodeFfmpeg::ffmpegparse_v, this, _1 ,_2));
 514         ffcmd->Terminated.connect_same_thread (*this, boost::bind (&TranscodeFfmpeg::ffexit, this));
 515         if (ffcmd->start(2)) {
 516                 ffexit();
 517                 return false;
 518         }
 519         return true;
 520 }
 521
 522 void
 523 TranscodeFfmpeg::cancel ()
 524 {
 525         if (!ffcmd || !ffcmd->is_running()) { return;}
 526         ffcmd->write_to_stdin("q");
 527 #ifdef PLATFORM_WINDOWS
 528         Sleep(1000);
 529 #else
 530         sleep (1);
 531 #endif
 532         if (ffcmd) {
 533           ffcmd->terminate();
 534         }
 535 }
 536
 537 void
 538 TranscodeFfmpeg::ffexit ()
 539 {
 540         delete ffcmd;
 541         ffcmd=0;
 542         Finished(); /* EMIT SIGNAL */
 543 }
 544
 545 void
 546 TranscodeFfmpeg::ffprobeparse (std::string d, size_t /* s */)
 547 {
 548         ffoutput+=d;
 549 }
 550
 551 void
 552 TranscodeFfmpeg::ffmpegparse_a (std::string d, size_t /* s */)
 553 {
 554         const char *t;
 555         int h,m,s; char f[7];
 556         ARDOUR::framecnt_t p = -1;
 557
 558         if (!(t=strstr(d.c_str(), "time="))) { return; }
 559
 560         if (sscanf(t+5, "%d:%d:%d.%s",&h,&m,&s,f) == 4) {
 561                 p = (ARDOUR::framecnt_t) floor( 100.0 * (
 562                       h * 3600.0
 563                     + m * 60.0
 564                     + s * 1.0
 565                     + atoi(f) / pow((double)10, (int)strlen(f))
 566                 ));
 567                 p = p * m_fps / 100.0;
 568                 if (p > m_duration ) { p = m_duration; }
 569                 Progress(p, m_duration); /* EMIT SIGNAL */
 570         } else {
 571                 Progress(0, 0); /* EMIT SIGNAL */
 572         }
 573 }
 574
 575 void
 576 TranscodeFfmpeg::ffmpegparse_v (std::string d, size_t /* s */)
 577 {
 578         if (strstr(d.c_str(), "ERROR") || strstr(d.c_str(), "Error") || strstr(d.c_str(), "error")) {
 579                 warning << "ffmpeg-error: " << d << endmsg;
 580         }
 581         if (strncmp(d.c_str(), "frame=",6)) {
 582 #if 1 /* DEBUG */
 583                 if (debug_enable) {
 584                         d.erase(d.find_last_not_of(" \t\r\n") + 1);
 585                   printf("ffmpeg: '%s'\n", d.c_str());
 586                 }
 587 #endif
 588                 Progress(0, 0); /* EMIT SIGNAL */
 589                 return;
 590         }
 591         ARDOUR::framecnt_t f = atol(d.substr(6));
 592         if (f == 0) {
 593                 Progress(0, 0); /* EMIT SIGNAL */
 594         } else {
 595                 Progress(f, m_duration); /* EMIT SIGNAL */
 596         }
 597 }