2 Copyright (C) 2010-2013 Paul Davis
3 Author: Robin Gareus <robin@gareus.org>
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.
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.
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.
23 #include <sys/types.h>
25 #include "pbd/error.h"
26 #include "pbd/convert.h"
27 #include "pbd/file_utils.h"
28 #include "gui_thread.h"
30 #include "transcode_ffmpeg.h"
31 #include "utils_videotl.h"
36 using namespace VideoUtils;
38 TranscodeFfmpeg::TranscodeFfmpeg (std::string f)
46 m_avoffset = m_lead_in = m_lead_out = 0;
47 m_width = m_height = 0;
49 #if 1 /* tentative debug mode */
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");
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");
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");
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");
70 if (ffmpeg_exe.empty() || ffprobe_exe.empty()) {
71 warning << string_compose(
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"
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"
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;
88 if (infile.empty() || !probe()) {
94 TranscodeFfmpeg::~TranscodeFfmpeg ()
100 TranscodeFfmpeg::probe ()
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());
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)) {
120 /* wait for ffprobe process to exit */
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) {
129 if (timeout == 0 || ffoutput.empty()) {
135 std::vector<std::vector<std::string> > lines;
136 ParseCSV(ffoutput, lines);
138 m_width = m_height = 0;
139 m_fps = m_aspect = 0;
144 #define PARSE_FRACTIONAL_FPS(VAR) \
146 std::string::size_type pos; \
148 pos = value.find_first_of('/'); \
149 if (pos != std::string::npos) { \
150 VAR = atof(value.substr(0, pos)) / atof(value.substr(pos+1)); \
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 */
158 if (i->at(0) == X_("stream")) {
159 if (i->at(5) == X_("codec_type=video") && m_width == 0) {
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);
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 += " ";
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 * (
195 + atoi(f) / pow(10, strlen(f))
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));
212 m_aspect = (double)m_width / (double)m_height;
215 } else if (i->at(5) == X_("codec_type=audio")) { /* new ffprobe */
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);
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 += " ";
230 } else if (key == X_("codec_name")) {
231 if (!as.name.empty()) as.name += " ";
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;
242 m_audio.push_back(as);
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);
259 printf("audio: no audio streams in file.\n");
266 TranscodeFfmpeg::FFSettings
267 TranscodeFfmpeg::default_encoder_settings ()
269 TranscodeFfmpeg::FFSettings ffs;
271 ffs["-vcodec"] = "mpeg4";
272 ffs["-acodec"] = "ac3";
273 ffs["-b:v"] = "5000k";
274 ffs["-b:a"] = "160k";
278 TranscodeFfmpeg::FFSettings
279 TranscodeFfmpeg::default_meta_data ()
281 TranscodeFfmpeg::FFSettings ffm;
283 ffm["comment"] = "Created with ardour";
288 TranscodeFfmpeg::format_metadata (std::string key, std::string value)
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)
296 v1.replace(start_pos, 1, "_");
301 while((start_pos = v1.find("\"", start_pos)) != std::string::npos) {
302 v1.replace(start_pos, 1, "\\\"");
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());
313 TranscodeFfmpeg::encode (std::string outfile, std::string inf_a, std::string inf_v, TranscodeFfmpeg::FFSettings ffs, TranscodeFfmpeg::FFSettings meta, bool map)
315 #define MAX_FFMPEG_ENCODER_ARGS (100)
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());
326 argp[a++] = strdup("-i");
327 argp[a++] = strdup(inf_v.c_str());
329 argp[a++] = strdup("-i");
330 argp[a++] = strdup(inf_a.c_str());
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());
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());
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());
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");
370 argp[a++] = strdup("-y");
371 argp[a++] = strdup(outfile.c_str());
373 assert(a<MAX_FFMPEG_ENCODER_ARGS);
374 /* Note: these are free()d in ~SystemExec */
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]);
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)) {
396 TranscodeFfmpeg::extract_audio (std::string outfile, ARDOUR::framecnt_t /*samplerate*/, unsigned int stream)
398 if (!probeok) return false;
399 if (stream >= m_audio.size()) return false;
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);
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 */
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]);
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)) {
445 TranscodeFfmpeg::transcode (std::string outfile, const int outw, const int outh, const int kbitps)
447 if (!probeok) return false;
450 int bitrate = kbitps;
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); }
458 const double bitperpixel = .7; /* avg quality */
459 bitrate = floor(m_fps * width * height * bitperpixel / 10000.0);
461 bitrate = bitrate / 10;
463 if (bitrate < 10) bitrate = 10;
464 if (bitrate > 1000) bitrate = 1000;
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 */
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]);
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)) {
504 TranscodeFfmpeg::cancel ()
506 if (!ffcmd || !ffcmd->is_running()) { return;}
507 ffcmd->write_to_stdin("q");
519 TranscodeFfmpeg::ffexit ()
523 Finished(); /* EMIT SIGNAL */
527 TranscodeFfmpeg::ffprobeparse (std::string d, size_t /* s */)
533 TranscodeFfmpeg::ffmpegparse_a (std::string d, size_t /* s */)
536 int h,m,s; char f[7];
537 ARDOUR::framecnt_t p = -1;
539 if (!(t=strstr(d.c_str(), "time="))) { return; }
541 if (sscanf(t+5, "%d:%d:%d.%s",&h,&m,&s,f) == 4) {
542 p = (ARDOUR::framecnt_t) floor( 100.0 * (
546 + atoi(f) / pow(10, strlen(f))
548 p = p * m_fps / 100.0;
549 if (p > m_duration ) { p = m_duration; }
550 Progress(p, m_duration); /* EMIT SIGNAL */
552 Progress(0, 0); /* EMIT SIGNAL */
557 TranscodeFfmpeg::ffmpegparse_v (std::string d, size_t /* s */)
559 if (strstr(d.c_str(), "ERROR") || strstr(d.c_str(), "Error") || strstr(d.c_str(), "error")) {
560 warning << "ffmpeg-error: " << d << endmsg;
562 if (strncmp(d.c_str(), "frame=",6)) {
565 d.erase(d.find_last_not_of(" \t\r\n") + 1);
566 printf("ffmpeg: '%s'\n", d.c_str());
569 Progress(0, 0); /* EMIT SIGNAL */
572 ARDOUR::framecnt_t f = atol(d.substr(6));
574 Progress(0, 0); /* EMIT SIGNAL */
576 Progress(f, m_duration); /* EMIT SIGNAL */