ardour/livetrax
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videotimeline: fix black-frame generation (sample aspect ratio) on export

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This commit is contained in:
Robin Gareus 2014-03-19 23:46:01 +01:00
parent 7e2518ec77
commit 92b7e0709c
2 changed files with 22 additions and 4 deletions
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25
gtk2_ardour/transcode_ffmpeg.cc
View File

@ -46,6 +46,7 @@ TranscodeFfmpeg::TranscodeFfmpeg (std::string f)
m_avoffset = m_lead_in = m_lead_out = 0;
m_width = m_height = 0;
m_aspect = m_fps = 0;
m_sar = "";
#if 1 /* tentative debug mode */
debug_enable = false;
#endif
@ -138,6 +139,7 @@ TranscodeFfmpeg::probe ()
m_width = m_height = 0;
m_fps = m_aspect = 0;
m_duration = 0;
m_sar.clear();
m_codec.clear();
m_audio.clear();
@ -199,6 +201,13 @@ TranscodeFfmpeg::probe ()
m_duration = atof(value) * m_fps * timebase;
} else if (key == X_("duration") && m_fps != 0 && m_duration == 0) {
m_duration = atof(value) * m_fps;
} else if (key == X_("sample_aspect_ratio")) {
std::string::size_type pos;
pos = value.find_first_of(':');
if (pos != std::string::npos && atof(value.substr(pos+1)) != 0) {
m_sar = value;
m_sar.replace(pos, 1, "/");
}
} else if (key == X_("display_aspect_ratio")) {
std::string::size_type pos;
pos = value.find_first_of(':');
@ -340,20 +349,28 @@ TranscodeFfmpeg::encode (std::string outfile, std::string inf_a, std::string inf
if (m_lead_in != 0 && m_lead_out != 0) {
std::ostringstream osstream;
argp[a++] = strdup("-vf");
osstream << X_("color=c=black:s=") << m_width << X_("x") << m_height << X_(":d=") << m_lead_in << X_(" [pre]; ");
osstream << X_("color=c=black:s=") << m_width << X_("x") << m_height << X_(":d=") << m_lead_out << X_(" [post]; ");
osstream << X_("color=c=black:s=") << m_width << X_("x") << m_height << X_(":d=") << m_lead_in;
if (!m_sar.empty()) osstream << X_(":sar=") << m_sar;
osstream << X_(" [pre]; ");
osstream << X_("color=c=black:s=") << m_width << X_("x") << m_height << X_(":d=") << m_lead_out;
if (!m_sar.empty()) osstream << X_(":sar=") << m_sar;
osstream << X_(" [post]; ");
osstream << X_("[pre] [in] [post] concat=n=3");
argp[a++] = strdup(osstream.str().c_str());
} else if (m_lead_in != 0) {
std::ostringstream osstream;
argp[a++] = strdup("-vf");
osstream << X_("color=c=black:s=") << m_width << X_("x") << m_height << X_(":d=") << m_lead_in << X_(" [pre]; ");
osstream << X_("color=c=black:s=") << m_width << X_("x") << m_height << X_(":d=") << m_lead_in;
if (!m_sar.empty()) osstream << X_(":sar=") << m_sar;
osstream << X_(" [pre]; ");
osstream << X_("[pre] [in] concat=n=2");
argp[a++] = strdup(osstream.str().c_str());
} else if (m_lead_out != 0) {
std::ostringstream osstream;
argp[a++] = strdup("-vf");
osstream << X_("color=c=black:s=") << m_width << X_("x") << m_height << X_(":d=") << m_lead_out << X_(" [post]; ");
osstream << X_("color=c=black:s=") << m_width << X_("x") << m_height << X_(":d=") << m_lead_out;
if (!m_sar.empty()) osstream << X_(":sar=") << m_sar;
osstream << X_(" [post]; ");
osstream << X_("[in] [post] concat=n=2");
argp[a++] = strdup(osstream.str().c_str());
}

1
gtk2_ardour/transcode_ffmpeg.h
View File

@ -134,6 +134,7 @@ class TranscodeFfmpeg : public sigc::trackable
double m_fps;
double m_aspect;
std::string m_sar;
ARDOUR::framecnt_t m_duration;
int m_width;
int m_height;