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;
50 #if 1 /* tentative debug mode */
54 std::string ff_file_path;
55 if (find_file_in_search_path (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");
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");
63 if (find_file_in_search_path (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");
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");
71 if (ffmpeg_exe.empty() || ffprobe_exe.empty()) {
72 warning << string_compose(
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"
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"
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 ), PROGRAM_NAME) << endmsg;
89 if (infile.empty() || !probe()) {
95 TranscodeFfmpeg::~TranscodeFfmpeg ()
101 TranscodeFfmpeg::probe ()
105 argp=(char**) calloc(7,sizeof(char*));
106 argp[0] = strdup(ffprobe_exe.c_str());
107 argp[1] = strdup("-print_format");
108 argp[2] = strdup("csv=nk=0");
109 argp[3] = strdup("-show_format");
110 argp[4] = strdup("-show_streams");
111 argp[5] = strdup(infile.c_str());
113 ffcmd = new ARDOUR::SystemExec(ffprobe_exe, argp);
114 ffcmd->ReadStdout.connect_same_thread (*this, boost::bind (&TranscodeFfmpeg::ffprobeparse, this, _1 ,_2));
115 ffcmd->Terminated.connect_same_thread (*this, boost::bind (&TranscodeFfmpeg::ffexit, this));
116 if (ffcmd->start(1)) {
121 /* wait for ffprobe process to exit */
124 /* wait for interposer thread to copy all data.
125 * SystemExec::Terminated is emitted and ffcmd set to NULL */
126 int timeout = 300; // 1.5 sec
127 while (ffcmd && --timeout > 0) {
130 if (timeout == 0 || ffoutput.empty()) {
136 std::vector<std::vector<std::string> > lines;
137 ParseCSV(ffoutput, lines);
139 m_width = m_height = 0;
140 m_fps = m_aspect = 0;
146 #define PARSE_FRACTIONAL_FPS(VAR) \
148 std::string::size_type pos; \
150 pos = value.find_first_of('/'); \
151 if (pos != std::string::npos) { \
152 VAR = atof(value.substr(0, pos)) / atof(value.substr(pos+1)); \
156 for (std::vector<std::vector<std::string> >::iterator i = lines.begin(); i != lines.end(); ++i) {
157 if (i->at(0) == X_("format")) {
158 /* format,filename,#streams,format-name,format-long-name,start-time,duration,size,bitrate */
160 if (i->at(0) == X_("stream")) {
161 if (i->at(5) == X_("codec_type=video") && m_width == 0) {
163 for (std::vector<std::string>::iterator kv = i->begin(); kv != i->end(); ++kv) {
164 const size_t kvsep = kv->find('=');
165 if(kvsep == std::string::npos) continue;
166 std::string key = kv->substr(0, kvsep);
167 std::string value = kv->substr(kvsep + 1);
169 if (key == X_("index")) {
170 m_videoidx = atoi(value);
171 } else if (key == X_("width")) {
172 m_width = atoi(value);
173 } else if (key == X_("height")) {
174 m_height = atoi(value);
175 } else if (key == X_("codec_name")) {
176 if (!m_codec.empty()) m_codec += " ";
178 } else if (key == X_("codec_long_name")) {
179 if (!m_codec.empty()) m_codec += " ";
180 m_codec += "[" + value + "]";
181 } else if (key == X_("codec_tag_string")) {
182 if (!m_codec.empty()) m_codec += " ";
183 m_codec += "(" + value + ")";
184 } else if (key == X_("r_frame_rate")) {
185 PARSE_FRACTIONAL_FPS(m_fps)
186 } else if (key == X_("avg_frame_rate") && m_fps == 0) {
187 PARSE_FRACTIONAL_FPS(m_fps)
188 } else if (key == X_("time_base")) {
189 PARSE_FRACTIONAL_FPS(timebase)
190 } else if (key == X_("timecode") && m_duration == 0) {
191 int h,m,s; char f[7];
192 if (sscanf(i->at(16).c_str(), "%d:%d:%d:%s",&h,&m,&s,f) == 4) {
193 m_duration = (ARDOUR::framecnt_t) floor(m_fps * (
197 + atoi(f) / pow((double)10, (int)strlen(f))
200 } else if (key == X_("duration_ts") && m_fps == 0 && timebase !=0 ) {
201 m_duration = atof(value) * m_fps * timebase;
202 } else if (key == X_("duration") && m_fps != 0 && m_duration == 0) {
203 m_duration = atof(value) * m_fps;
204 } else if (key == X_("sample_aspect_ratio")) {
205 std::string::size_type pos;
206 pos = value.find_first_of(':');
207 if (pos != std::string::npos && atof(value.substr(pos+1)) != 0) {
209 m_sar.replace(pos, 1, "/");
211 } else if (key == X_("display_aspect_ratio")) {
212 std::string::size_type pos;
213 pos = value.find_first_of(':');
214 if (pos != std::string::npos && atof(value.substr(pos+1)) != 0) {
215 m_aspect = atof(value.substr(0, pos)) / atof(value.substr(pos+1));
221 m_aspect = (double)m_width / (double)m_height;
224 } else if (i->at(5) == X_("codec_type=audio")) { /* new ffprobe */
226 for (std::vector<std::string>::iterator kv = i->begin(); kv != i->end(); ++kv) {
227 const size_t kvsep = kv->find('=');
228 if(kvsep == std::string::npos) continue;
229 std::string key = kv->substr(0, kvsep);
230 std::string value = kv->substr(kvsep + 1);
232 if (key == X_("channels")) {
233 as.channels = atoi(value);
234 } else if (key == X_("index")) {
235 as.stream_id = value;
236 } else if (key == X_("codec_long_name")) {
237 if (!as.name.empty()) as.name += " ";
239 } else if (key == X_("codec_name")) {
240 if (!as.name.empty()) as.name += " ";
242 } else if (key == X_("sample_fmt")) {
243 if (!as.name.empty()) as.name += " ";
244 as.name += "FMT:" + value;
245 } else if (key == X_("sample_rate")) {
246 if (!as.name.empty()) as.name += " ";
247 as.name += "SR:" + value;
251 m_audio.push_back(as);
258 printf("FPS: %f\n", m_fps);
259 printf("Duration: %lu frames\n",(unsigned long)m_duration);
260 printf("W/H: %ix%i\n",m_width, m_height);
261 printf("aspect: %f\n",m_aspect);
262 printf("codec: %s\n",m_codec.c_str());
263 if (m_audio.size() > 0) {
264 for (AudioStreams::iterator it = m_audio.begin(); it < m_audio.end(); ++it) {
265 printf("audio: %s - %i channels\n",(*it).stream_id.c_str(), (*it).channels);
268 printf("audio: no audio streams in file.\n");
275 TranscodeFfmpeg::FFSettings
276 TranscodeFfmpeg::default_encoder_settings ()
278 TranscodeFfmpeg::FFSettings ffs;
280 ffs["-vcodec"] = "mpeg4";
281 ffs["-acodec"] = "ac3";
282 ffs["-b:v"] = "5000k";
283 ffs["-b:a"] = "160k";
287 TranscodeFfmpeg::FFSettings
288 TranscodeFfmpeg::default_meta_data ()
290 TranscodeFfmpeg::FFSettings ffm;
292 ffm["comment"] = "Created with ardour";
297 TranscodeFfmpeg::format_metadata (std::string key, std::string value)
299 size_t start_pos = 0;
300 std::string v1 = value;
301 while((start_pos = v1.find_first_not_of(
302 "abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789(),.\"'",
303 start_pos)) != std::string::npos)
305 v1.replace(start_pos, 1, "_");
310 while((start_pos = v1.find("\"", start_pos)) != std::string::npos) {
311 v1.replace(start_pos, 1, "\\\"");
315 size_t len = key.length() + v1.length() + 4;
316 char *mds = (char*) calloc(len, sizeof(char));
317 snprintf(mds, len, "%s=\"%s\"", key.c_str(), v1.c_str());
322 TranscodeFfmpeg::encode (std::string outfile, std::string inf_a, std::string inf_v, TranscodeFfmpeg::FFSettings ffs, TranscodeFfmpeg::FFSettings meta, bool map)
324 #define MAX_FFMPEG_ENCODER_ARGS (100)
328 argp=(char**) calloc(MAX_FFMPEG_ENCODER_ARGS,sizeof(char*));
329 argp[a++] = strdup(ffmpeg_exe.c_str());
330 if (m_avoffset < 0 || m_avoffset > 0) {
331 std::ostringstream osstream; osstream << m_avoffset;
332 argp[a++] = strdup("-itsoffset");
333 argp[a++] = strdup(osstream.str().c_str());
335 argp[a++] = strdup("-i");
336 argp[a++] = strdup(inf_v.c_str());
338 argp[a++] = strdup("-i");
339 argp[a++] = strdup(inf_a.c_str());
341 for(TranscodeFfmpeg::FFSettings::const_iterator it = ffs.begin(); it != ffs.end(); ++it) {
342 argp[a++] = strdup(it->first.c_str());
343 argp[a++] = strdup(it->second.c_str());
345 for(TranscodeFfmpeg::FFSettings::const_iterator it = meta.begin(); it != meta.end(); ++it) {
346 argp[a++] = strdup("-metadata");
347 argp[a++] = format_metadata(it->first.c_str(), it->second.c_str());
349 if (m_lead_in != 0 && m_lead_out != 0) {
350 std::ostringstream osstream;
351 argp[a++] = strdup("-vf");
352 osstream << X_("color=c=black:s=") << m_width << X_("x") << m_height << X_(":d=") << m_lead_in;
353 if (!m_sar.empty()) osstream << X_(":sar=") << m_sar;
354 osstream << X_(" [pre]; ");
355 osstream << X_("color=c=black:s=") << m_width << X_("x") << m_height << X_(":d=") << m_lead_out;
356 if (!m_sar.empty()) osstream << X_(":sar=") << m_sar;
357 osstream << X_(" [post]; ");
358 osstream << X_("[pre] [in] [post] concat=n=3");
359 argp[a++] = strdup(osstream.str().c_str());
360 } else if (m_lead_in != 0) {
361 std::ostringstream osstream;
362 argp[a++] = strdup("-vf");
363 osstream << X_("color=c=black:s=") << m_width << X_("x") << m_height << X_(":d=") << m_lead_in;
364 if (!m_sar.empty()) osstream << X_(":sar=") << m_sar;
365 osstream << X_(" [pre]; ");
366 osstream << X_("[pre] [in] concat=n=2");
367 argp[a++] = strdup(osstream.str().c_str());
368 } else if (m_lead_out != 0) {
369 std::ostringstream osstream;
370 argp[a++] = strdup("-vf");
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_("[in] [post] concat=n=2");
375 argp[a++] = strdup(osstream.str().c_str());
379 std::ostringstream osstream;
380 argp[a++] = strdup("-map");
381 osstream << X_("0:") << m_videoidx;
382 argp[a++] = strdup(osstream.str().c_str());
383 argp[a++] = strdup("-map");
384 argp[a++] = strdup("1:0");
387 argp[a++] = strdup("-y");
388 argp[a++] = strdup(outfile.c_str());
390 assert(a<MAX_FFMPEG_ENCODER_ARGS);
391 /* Note: these are free()d in ~SystemExec */
393 if (debug_enable) { /* tentative debug mode */
394 printf("EXPORT ENCODE:\n");
395 for (int i=0; i< a; ++i) {
396 printf("%s ", argp[i]);
402 ffcmd = new ARDOUR::SystemExec(ffmpeg_exe, argp);
403 ffcmd->ReadStdout.connect_same_thread (*this, boost::bind (&TranscodeFfmpeg::ffmpegparse_v, this, _1 ,_2));
404 ffcmd->Terminated.connect_same_thread (*this, boost::bind (&TranscodeFfmpeg::ffexit, this));
405 if (ffcmd->start(2)) {
413 TranscodeFfmpeg::extract_audio (std::string outfile, ARDOUR::framecnt_t /*samplerate*/, unsigned int stream)
415 if (!probeok) return false;
416 if (stream >= m_audio.size()) return false;
421 argp=(char**) calloc(15,sizeof(char*));
422 argp[i++] = strdup(ffmpeg_exe.c_str());
423 argp[i++] = strdup("-i");
424 argp[i++] = strdup(infile.c_str());
425 #if 0 /* ffmpeg write original samplerate, use a3/SRC to resample */
426 argp[i++] = strdup("-ar");
427 argp[i] = (char*) calloc(7,sizeof(char)); snprintf(argp[i++], 7, "%"PRId64, samplerate);
429 argp[i++] = strdup("-ac");
430 argp[i] = (char*) calloc(3,sizeof(char)); snprintf(argp[i++], 3, "%i", m_audio.at(stream).channels);
431 argp[i++] = strdup("-map");
432 argp[i] = (char*) calloc(8,sizeof(char)); snprintf(argp[i++], 8, "0:%s", m_audio.at(stream).stream_id.c_str());
433 argp[i++] = strdup("-vn");
434 argp[i++] = strdup("-acodec");
435 argp[i++] = strdup("pcm_f32le");
436 argp[i++] = strdup("-y");
437 argp[i++] = strdup(outfile.c_str());
438 argp[i++] = (char *)0;
439 /* Note: argp is free()d in ~SystemExec */
441 if (debug_enable) { /* tentative debug mode */
442 printf("EXTRACT AUDIO:\n");
443 for (int i=0; i< 14; ++i) {
444 printf("%s ", argp[i]);
450 ffcmd = new ARDOUR::SystemExec(ffmpeg_exe, argp);
451 ffcmd->ReadStdout.connect_same_thread (*this, boost::bind (&TranscodeFfmpeg::ffmpegparse_a, this, _1 ,_2));
452 ffcmd->Terminated.connect_same_thread (*this, boost::bind (&TranscodeFfmpeg::ffexit, this));
453 if (ffcmd->start(2)) {
462 TranscodeFfmpeg::transcode (std::string outfile, const int outw, const int outh, const int kbitps)
464 if (!probeok) return false;
467 int bitrate = kbitps;
471 if (width < 1 || width > m_width) { width = m_width; } /* don't allow upscaling */
472 if (height < 1 || height > m_height) { height = floor(width / m_aspect); }
475 const double bitperpixel = .7; /* avg quality */
476 bitrate = floor(m_fps * width * height * bitperpixel / 10000.0);
478 bitrate = bitrate / 10;
480 if (bitrate < 10) bitrate = 10;
481 if (bitrate > 1000) bitrate = 1000;
483 argp=(char**) calloc(16,sizeof(char*));
484 argp[0] = strdup(ffmpeg_exe.c_str());
485 argp[1] = strdup("-i");
486 argp[2] = strdup(infile.c_str());
487 argp[3] = strdup("-b:v");
488 argp[4] = (char*) calloc(7,sizeof(char)); snprintf(argp[4], 7, "%i0k", bitrate);
489 argp[5] = strdup("-s");
490 argp[6] = (char*) calloc(10,sizeof(char)); snprintf(argp[6], 10, "%ix%i", width, height);
491 argp[7] = strdup("-y");
492 argp[8] = strdup("-vcodec");
493 argp[9] = strdup("mjpeg");
494 argp[10] = strdup("-an");
495 argp[11] = strdup("-intra");
496 argp[12] = strdup("-g");
497 argp[13] = strdup("1");
498 argp[14] = strdup(outfile.c_str());
499 argp[15] = (char *)0;
500 /* Note: these are free()d in ~SystemExec */
502 if (debug_enable) { /* tentative debug mode */
503 printf("TRANSCODE VIDEO:\n");
504 for (int i=0; i< 15; ++i) {
505 printf("%s ", argp[i]);
510 ffcmd = new ARDOUR::SystemExec(ffmpeg_exe, argp);
511 ffcmd->ReadStdout.connect_same_thread (*this, boost::bind (&TranscodeFfmpeg::ffmpegparse_v, this, _1 ,_2));
512 ffcmd->Terminated.connect_same_thread (*this, boost::bind (&TranscodeFfmpeg::ffexit, this));
513 if (ffcmd->start(2)) {
521 TranscodeFfmpeg::cancel ()
523 if (!ffcmd || !ffcmd->is_running()) { return;}
524 ffcmd->write_to_stdin("q");
525 #ifdef PLATFORM_WINDOWS
536 TranscodeFfmpeg::ffexit ()
540 Finished(); /* EMIT SIGNAL */
544 TranscodeFfmpeg::ffprobeparse (std::string d, size_t /* s */)
550 TranscodeFfmpeg::ffmpegparse_a (std::string d, size_t /* s */)
553 int h,m,s; char f[7];
554 ARDOUR::framecnt_t p = -1;
556 if (!(t=strstr(d.c_str(), "time="))) { return; }
558 if (sscanf(t+5, "%d:%d:%d.%s",&h,&m,&s,f) == 4) {
559 p = (ARDOUR::framecnt_t) floor( 100.0 * (
563 + atoi(f) / pow((double)10, (int)strlen(f))
565 p = p * m_fps / 100.0;
566 if (p > m_duration ) { p = m_duration; }
567 Progress(p, m_duration); /* EMIT SIGNAL */
569 Progress(0, 0); /* EMIT SIGNAL */
574 TranscodeFfmpeg::ffmpegparse_v (std::string d, size_t /* s */)
576 if (strstr(d.c_str(), "ERROR") || strstr(d.c_str(), "Error") || strstr(d.c_str(), "error")) {
577 warning << "ffmpeg-error: " << d << endmsg;
579 if (strncmp(d.c_str(), "frame=",6)) {
582 d.erase(d.find_last_not_of(" \t\r\n") + 1);
583 printf("ffmpeg: '%s'\n", d.c_str());
586 Progress(0, 0); /* EMIT SIGNAL */
589 ARDOUR::framecnt_t f = atol(d.substr(6));
591 Progress(0, 0); /* EMIT SIGNAL */
593 Progress(f, m_duration); /* EMIT SIGNAL */