#include <iomanip>
#include <iostream>
#include <fstream>
-#ifdef DVDOMATIC_POSIX
+#include <climits>
+#ifdef DCPOMATIC_POSIX
#include <execinfo.h>
#include <cxxabi.h>
#endif
#include <boost/bind.hpp>
#include <boost/lambda/lambda.hpp>
#include <boost/lexical_cast.hpp>
+#include <boost/thread.hpp>
+#include <boost/filesystem.hpp>
#include <openjpeg.h>
#include <openssl/md5.h>
#include <magick/MagickCore.h>
#include "format.h"
#include "dcp_content_type.h"
#include "filter.h"
-#include "screen.h"
-#include "film_state.h"
#include "sound_processor.h"
-#ifndef DVDOMATIC_DISABLE_PLAYER
-#include "player_manager.h"
-#endif
-
-using namespace std;
-using namespace boost;
+#include "config.h"
+
+#include "i18n.h"
+
+using std::string;
+using std::stringstream;
+using std::setfill;
+using std::ostream;
+using std::endl;
+using std::vector;
+using std::hex;
+using std::setw;
+using std::ifstream;
+using std::ios;
+using std::min;
+using std::max;
+using std::list;
+using std::multimap;
+using std::istream;
+using std::numeric_limits;
+using std::pair;
+using boost::shared_ptr;
+using boost::thread;
+using boost::lexical_cast;
+using libdcp::Size;
+
+thread::id ui_thread;
/** Convert some number of seconds to a string representation
* in hours, minutes and seconds.
m -= (h * 60);
stringstream hms;
- hms << h << ":";
+ hms << h << N_(":");
hms.width (2);
- hms << setfill ('0') << m << ":";
+ hms << setfill ('0') << m << N_(":");
hms.width (2);
hms << setfill ('0') << s;
if (h > 0) {
if (m > 30) {
- ap << (h + 1) << " hours";
+ ap << (h + 1) << N_(" ") << _("hours");
} else {
if (h == 1) {
- ap << "1 hour";
+ ap << N_("1 ") << _("hour");
} else {
- ap << h << " hours";
+ ap << h << N_(" ") << _("hours");
}
}
} else if (m > 0) {
if (m == 1) {
- ap << "1 minute";
+ ap << N_("1 ") << _("minute");
} else {
- ap << m << " minutes";
+ ap << m << N_(" ") << _("minutes");
}
} else {
- ap << s << " seconds";
+ ap << s << N_(" ") << _("seconds");
}
return ap.str ();
}
-#ifdef DVDOMATIC_POSIX
+#ifdef DCPOMATIC_POSIX
/** @param l Mangled C++ identifier.
* @return Demangled version.
*/
static string
demangle (string l)
{
- string::size_type const b = l.find_first_of ("(");
+ string::size_type const b = l.find_first_of (N_("("));
if (b == string::npos) {
return l;
}
- string::size_type const p = l.find_last_of ("+");
+ string::size_type const p = l.find_last_of (N_("+"));
if (p == string::npos) {
return l;
}
if (strings) {
for (i = 0; i < size && (levels == 0 || i < size_t(levels)); i++) {
- out << " " << demangle (strings[i]) << endl;
+ out << N_(" ") << demangle (strings[i]) << endl;
}
free (strings);
}
#endif
-/** @return Version of vobcopy that is on the path (and hence that we will use) */
-static string
-vobcopy_version ()
-{
- FILE* f = popen ("vobcopy -V 2>&1", "r");
- if (f == 0) {
- throw EncodeError ("could not run vobcopy to check version");
- }
-
- string version = "unknown";
-
- while (!feof (f)) {
- char buf[256];
- if (fgets (buf, sizeof (buf), f)) {
- string s (buf);
- vector<string> b;
- split (b, s, is_any_of (" "));
- if (b.size() >= 2 && b[0] == "Vobcopy") {
- version = b[1];
- }
- }
- }
-
- pclose (f);
-
- return version;
-}
-
/** @param v Version as used by FFmpeg.
* @return A string representation of v.
*/
ffmpeg_version_to_string (int v)
{
stringstream s;
- s << ((v & 0xff0000) >> 16) << "." << ((v & 0xff00) >> 8) << "." << (v & 0xff);
+ s << ((v & 0xff0000) >> 16) << N_(".") << ((v & 0xff00) >> 8) << N_(".") << (v & 0xff);
return s.str ();
}
dependency_version_summary ()
{
stringstream s;
- s << "libopenjpeg " << opj_version () << ", "
- << "vobcopy " << vobcopy_version() << ", "
- << "libavcodec " << ffmpeg_version_to_string (avcodec_version()) << ", "
- << "libavfilter " << ffmpeg_version_to_string (avfilter_version()) << ", "
- << "libavformat " << ffmpeg_version_to_string (avformat_version()) << ", "
- << "libavutil " << ffmpeg_version_to_string (avutil_version()) << ", "
- << "libpostproc " << ffmpeg_version_to_string (postproc_version()) << ", "
- << "libswscale " << ffmpeg_version_to_string (swscale_version()) << ", "
- << MagickVersion << ", "
- << "libssh " << ssh_version (0) << ", "
- << "libdcp " << libdcp::version << " git " << libdcp::git_commit;
+ s << N_("libopenjpeg ") << opj_version () << N_(", ")
+ << N_("libavcodec ") << ffmpeg_version_to_string (avcodec_version()) << N_(", ")
+ << N_("libavfilter ") << ffmpeg_version_to_string (avfilter_version()) << N_(", ")
+ << N_("libavformat ") << ffmpeg_version_to_string (avformat_version()) << N_(", ")
+ << N_("libavutil ") << ffmpeg_version_to_string (avutil_version()) << N_(", ")
+ << N_("libpostproc ") << ffmpeg_version_to_string (postproc_version()) << N_(", ")
+ << N_("libswscale ") << ffmpeg_version_to_string (swscale_version()) << N_(", ")
+ << MagickVersion << N_(", ")
+ << N_("libssh ") << ssh_version (0) << N_(", ")
+ << N_("libdcp ") << libdcp::version << N_(" git ") << libdcp::git_commit;
return s.str ();
}
return t.tv_sec + (double (t.tv_usec) / 1e6);
}
-
-#ifdef DVDOMATIC_POSIX
-void
-sigchld_handler (int, siginfo_t* info, void *)
-{
-#ifndef DVDOMATIC_DISABLE_PLAYER
- PlayerManager::instance()->child_exited (info->si_pid);
-#endif
-}
-#endif
-
-/** Call the required functions to set up DVD-o-matic's static arrays, etc. */
+/** Call the required functions to set up DCP-o-matic's static arrays, etc.
+ * Must be called from the UI thread, if there is one.
+ */
void
-dvdomatic_setup ()
+dcpomatic_setup ()
{
+ avfilter_register_all ();
+
Format::setup_formats ();
DCPContentType::setup_dcp_content_types ();
Scaler::setup_scalers ();
Filter::setup_filters ();
SoundProcessor::setup_sound_processors ();
-#ifdef DVDOMATIC_POSIX
- struct sigaction sa;
- sa.sa_flags = SA_SIGINFO;
- sigemptyset (&sa.sa_mask);
- sa.sa_sigaction = sigchld_handler;
- sigaction (SIGCHLD, &sa, 0);
+ ui_thread = boost::this_thread::get_id ();
+}
+
+#ifdef DCPOMATIC_WINDOWS
+boost::filesystem::path
+mo_path ()
+{
+ wchar_t buffer[512];
+ GetModuleFileName (0, buffer, 512 * sizeof(wchar_t));
+ boost::filesystem::path p (buffer);
+ p = p.parent_path ();
+ p = p.parent_path ();
+ p /= "locale";
+ return p;
+}
+#endif
+
+void
+dcpomatic_setup_i18n (string lang)
+{
+#ifdef DCPOMATIC_POSIX
+ lang += ".UTF8";
+#endif
+
+ if (!lang.empty ()) {
+ /* Override our environment language; this is essential on
+ Windows.
+ */
+ char cmd[64];
+ snprintf (cmd, sizeof(cmd), "LANGUAGE=%s", lang.c_str ());
+ putenv (cmd);
+ snprintf (cmd, sizeof(cmd), "LANG=%s", lang.c_str ());
+ putenv (cmd);
+ }
+
+ setlocale (LC_ALL, "");
+ textdomain ("libdcpomatic");
+
+#ifdef DCPOMATIC_WINDOWS
+ bindtextdomain ("libdcpomatic", mo_path().string().c_str());
+ bind_textdomain_codeset ("libdcpomatic", "UTF8");
#endif
+
+#ifdef DCPOMATIC_POSIX
+ bindtextdomain ("libdcpomatic", POSIX_LOCALE_PREFIX);
+#endif
}
+/** @param start Start position for the crop within the image.
+ * @param size Size of the cropped area.
+ * @return FFmpeg crop filter string.
+ */
string
-crop_string (Position start, Size size)
+crop_string (Position start, libdcp::Size size)
{
stringstream s;
- s << "crop=" << size.width << ":" << size.height << ":" << start.x << ":" << start.y;
+ s << N_("crop=") << size.width << N_(":") << size.height << N_(":") << start.x << N_(":") << start.y;
return s.str ();
}
+/** @param s A string.
+ * @return Parts of the string split at spaces, except when a space is within quotation marks.
+ */
vector<string>
split_at_spaces_considering_quotes (string s)
{
for (string::size_type i = 0; i < s.length(); ++i) {
if (s[i] == ' ' && !in_quotes) {
out.push_back (c);
- c = "";
+ c = N_("");
} else if (s[i] == '"') {
in_quotes = !in_quotes;
} else {
* @return MD5 digest of file's contents.
*/
string
-md5_digest (string file)
+md5_digest (boost::filesystem::path file)
{
- ifstream f (file.c_str(), ios::binary);
+ ifstream f (file.string().c_str(), ios::binary);
if (!f.good ()) {
- throw OpenFileError (file);
+ throw OpenFileError (file.string());
}
f.seekg (0, ios::end);
return s.str ();
}
+static bool
+about_equal (float a, float b)
+{
+ /* A film of F seconds at f FPS will be Ff frames;
+ Consider some delta FPS d, so if we run the same
+ film at (f + d) FPS it will last F(f + d) seconds.
+
+ Hence the difference in length over the length of the film will
+ be F(f + d) - Ff frames
+ = Ff + Fd - Ff frames
+ = Fd frames
+ = Fd/f seconds
+
+ So if we accept a difference of 1 frame, ie 1/f seconds, we can
+ say that
+
+ 1/f = Fd/f
+ ie 1 = Fd
+ ie d = 1/F
+
+ So for a 3hr film, ie F = 3 * 60 * 60 = 10800, the acceptable
+ FPS error is 1/F ~= 0.0001 ~= 10-e4
+ */
+
+ return (fabs (a - b) < 1e-4);
+}
+
+class FrameRateCandidate
+{
+public:
+ FrameRateCandidate (float source_, int dcp_)
+ : source (source_)
+ , dcp (dcp_)
+ {}
+
+ float source;
+ int dcp;
+};
+
+int
+best_dcp_frame_rate (float source_fps)
+{
+ list<int> const allowed_dcp_frame_rates = Config::instance()->allowed_dcp_frame_rates ();
+
+ /* Work out what rates we could manage, including those achieved by using skip / repeat. */
+ list<FrameRateCandidate> candidates;
+
+ /* Start with the ones without skip / repeat so they will get matched in preference to skipped/repeated ones */
+ for (list<int>::const_iterator i = allowed_dcp_frame_rates.begin(); i != allowed_dcp_frame_rates.end(); ++i) {
+ candidates.push_back (FrameRateCandidate (*i, *i));
+ }
+
+ /* Then the skip/repeat ones */
+ for (list<int>::const_iterator i = allowed_dcp_frame_rates.begin(); i != allowed_dcp_frame_rates.end(); ++i) {
+ candidates.push_back (FrameRateCandidate (float (*i) / 2, *i));
+ candidates.push_back (FrameRateCandidate (float (*i) * 2, *i));
+ }
+
+ /* Pick the best one, bailing early if we hit an exact match */
+ float error = numeric_limits<float>::max ();
+ boost::optional<FrameRateCandidate> best;
+ list<FrameRateCandidate>::iterator i = candidates.begin();
+ while (i != candidates.end()) {
+
+ if (about_equal (i->source, source_fps)) {
+ best = *i;
+ break;
+ }
+
+ float const e = fabs (i->source - source_fps);
+ if (e < error) {
+ error = e;
+ best = *i;
+ }
+
+ ++i;
+ }
+
+ assert (best);
+ return best->dcp;
+}
+
/** @param An arbitrary sampling rate.
* @return The appropriate DCP-approved sampling rate (48kHz or 96kHz).
*/
return 96000;
}
-bool operator== (Crop const & a, Crop const & b)
-{
- return (a.left == b.left && a.right == b.right && a.top == b.top && a.bottom == b.bottom);
-}
-
-bool operator!= (Crop const & a, Crop const & b)
-{
- return !(a == b);
-}
-
/** @param index Colour LUT index.
* @return Human-readable name.
*/
{
switch (index) {
case 0:
- return "sRGB";
+ return _("sRGB");
case 1:
- return "Rec 709";
+ return _("Rec 709");
}
assert (false);
- return "";
+ return N_("");
}
-Socket::Socket ()
+Socket::Socket (int timeout)
: _deadline (_io_service)
, _socket (_io_service)
- , _buffer_data (0)
+ , _timeout (timeout)
{
- _deadline.expires_at (posix_time::pos_infin);
+ _deadline.expires_at (boost::posix_time::pos_infin);
check ();
}
void
Socket::check ()
{
- if (_deadline.expires_at() <= asio::deadline_timer::traits_type::now ()) {
+ if (_deadline.expires_at() <= boost::asio::deadline_timer::traits_type::now ()) {
_socket.close ();
- _deadline.expires_at (posix_time::pos_infin);
+ _deadline.expires_at (boost::posix_time::pos_infin);
}
_deadline.async_wait (boost::bind (&Socket::check, this));
}
-/** Blocking connect with timeout.
+/** Blocking connect.
* @param endpoint End-point to connect to.
- * @param timeout Time-out in seconds.
*/
void
-Socket::connect (asio::ip::basic_resolver_entry<asio::ip::tcp> const & endpoint, int timeout)
+Socket::connect (boost::asio::ip::basic_resolver_entry<boost::asio::ip::tcp> const & endpoint)
{
- system::error_code ec = asio::error::would_block;
- _socket.async_connect (endpoint, lambda::var(ec) = lambda::_1);
+ _deadline.expires_from_now (boost::posix_time::seconds (_timeout));
+ boost::system::error_code ec = boost::asio::error::would_block;
+ _socket.async_connect (endpoint, boost::lambda::var(ec) = boost::lambda::_1);
do {
_io_service.run_one();
- } while (ec == asio::error::would_block);
+ } while (ec == boost::asio::error::would_block);
if (ec || !_socket.is_open ()) {
- throw NetworkError ("connect timed out");
+ throw NetworkError (_("connect timed out"));
}
}
-/** Blocking write with timeout.
+/** Blocking write.
* @param data Buffer to write.
* @param size Number of bytes to write.
- * @param timeout Time-out, in seconds.
*/
void
-Socket::write (uint8_t const * data, int size, int timeout)
+Socket::write (uint8_t const * data, int size)
{
- _deadline.expires_from_now (posix_time::seconds (timeout));
- system::error_code ec = asio::error::would_block;
+ _deadline.expires_from_now (boost::posix_time::seconds (_timeout));
+ boost::system::error_code ec = boost::asio::error::would_block;
- asio::async_write (_socket, asio::buffer (data, size), lambda::var(ec) = lambda::_1);
+ boost::asio::async_write (_socket, boost::asio::buffer (data, size), boost::lambda::var(ec) = boost::lambda::_1);
+
do {
_io_service.run_one ();
- } while (ec == asio::error::would_block);
+ } while (ec == boost::asio::error::would_block);
if (ec) {
- throw NetworkError ("write timed out");
+ throw NetworkError (ec.message ());
}
}
-/** Blocking read with timeout.
+void
+Socket::write (uint32_t v)
+{
+ v = htonl (v);
+ write (reinterpret_cast<uint8_t*> (&v), 4);
+}
+
+/** Blocking read.
* @param data Buffer to read to.
* @param size Number of bytes to read.
- * @param timeout Time-out, in seconds.
*/
-int
-Socket::read (uint8_t* data, int size, int timeout)
+void
+Socket::read (uint8_t* data, int size)
{
- _deadline.expires_from_now (posix_time::seconds (timeout));
- system::error_code ec = asio::error::would_block;
+ _deadline.expires_from_now (boost::posix_time::seconds (_timeout));
+ boost::system::error_code ec = boost::asio::error::would_block;
- int amount_read = 0;
-
- _socket.async_read_some (
- asio::buffer (data, size),
- (lambda::var(ec) = lambda::_1, lambda::var(amount_read) = lambda::_2)
- );
+ boost::asio::async_read (_socket, boost::asio::buffer (data, size), boost::lambda::var(ec) = boost::lambda::_1);
do {
_io_service.run_one ();
- } while (ec == asio::error::would_block);
+ } while (ec == boost::asio::error::would_block);
if (ec) {
- amount_read = 0;
+ throw NetworkError (ec.message ());
}
-
- return amount_read;
}
-/** Mark some data as being `consumed', so that it will not be returned
- * as data again.
- * @param size Amount of data to consume, in bytes.
- */
-void
-Socket::consume (int size)
+uint32_t
+Socket::read_uint32 ()
{
- assert (_buffer_data >= size);
-
- _buffer_data -= size;
- if (_buffer_data > 0) {
- /* Shift still-valid data to the start of the buffer */
- memmove (_buffer, _buffer + size, _buffer_data);
- }
+ uint32_t v;
+ read (reinterpret_cast<uint8_t *> (&v), 4);
+ return ntohl (v);
}
-/** Read a definite amount of data from our socket, and mark
- * it as consumed.
- * @param data Where to put the data.
- * @param size Number of bytes to read.
+/** @param other A Rect.
+ * @return The intersection of this with `other'.
*/
-void
-Socket::read_definite_and_consume (uint8_t* data, int size, int timeout)
-{
- int const from_buffer = min (_buffer_data, size);
- if (from_buffer > 0) {
- /* Get data from our buffer */
- memcpy (data, _buffer, from_buffer);
- consume (from_buffer);
- /* Update our output state */
- data += from_buffer;
- size -= from_buffer;
- }
-
- /* read() the rest */
- while (size > 0) {
- int const n = read (data, size, timeout);
- if (n <= 0) {
- throw NetworkError ("could not read");
- }
-
- data += n;
- size -= n;
- }
-}
-
-/** Read as much data as is available, up to some limit.
- * @param data Where to put the data.
- * @param size Maximum amount of data to read.
- */
-void
-Socket::read_indefinite (uint8_t* data, int size, int timeout)
-{
- assert (size < int (sizeof (_buffer)));
-
- /* Amount of extra data we need to read () */
- int to_read = size - _buffer_data;
- while (to_read > 0) {
- /* read as much of it as we can (into our buffer) */
- int const n = read (_buffer + _buffer_data, to_read, timeout);
- if (n <= 0) {
- throw NetworkError ("could not read");
- }
-
- to_read -= n;
- _buffer_data += n;
- }
-
- assert (_buffer_data >= size);
-
- /* copy data into the output buffer */
- assert (size >= _buffer_data);
- memcpy (data, _buffer, size);
-}
-
Rect
Rect::intersection (Rect const & other) const
{
}
/** Round a number up to the nearest multiple of another number.
- * @param a Number to round.
+ * @param c Index.
+ * @param s Array of numbers to round, indexed by c.
* @param t Multiple to round to.
* @return Rounded number.
*/
-
int
-round_up (int a, int t)
+stride_round_up (int c, int const * stride, int t)
{
- a += (t - 1);
+ int const a = stride[c] + (t - 1);
return a - (a % t);
}
+int
+stride_lookup (int c, int const * stride)
+{
+ return stride[c];
+}
+
/** Read a sequence of key / value pairs from a text stream;
* the keys are the first words on the line, and the values are
* the remainder of the line following the key. Lines beginning
if (line.empty ()) {
continue;
}
-
+
if (line[0] == '#') {
continue;
}
get_required_string (multimap<string, string> const & kv, string k)
{
if (kv.count (k) > 1) {
- throw StringError ("unexpected multiple keys in key-value set");
+ throw StringError (N_("unexpected multiple keys in key-value set"));
}
multimap<string, string>::const_iterator i = kv.find (k);
if (i == kv.end ()) {
- throw StringError (String::compose ("missing key %1 in key-value set", k));
+ throw StringError (String::compose (_("missing key %1 in key-value set"), k));
}
return i->second;
get_optional_string (multimap<string, string> const & kv, string k)
{
if (kv.count (k) > 1) {
- throw StringError ("unexpected multiple keys in key-value set");
+ throw StringError (N_("unexpected multiple keys in key-value set"));
}
multimap<string, string>::const_iterator i = kv.find (k);
if (i == kv.end ()) {
- return "";
+ return N_("");
}
return i->second;
get_optional_int (multimap<string, string> const & kv, string k)
{
if (kv.count (k) > 1) {
- throw StringError ("unexpected multiple keys in key-value set");
+ throw StringError (N_("unexpected multiple keys in key-value set"));
}
multimap<string, string>::const_iterator i = kv.find (k);
return lexical_cast<int> (i->second);
}
+/** Construct an AudioBuffers. Audio data is undefined after this constructor.
+ * @param channels Number of channels.
+ * @param frames Number of frames to reserve space for.
+ */
AudioBuffers::AudioBuffers (int channels, int frames)
: _channels (channels)
, _frames (frames)
+ , _allocated_frames (frames)
{
_data = new float*[_channels];
for (int i = 0; i < _channels; ++i) {
}
}
+/** Copy constructor.
+ * @param other Other AudioBuffers; data is copied.
+ */
+AudioBuffers::AudioBuffers (AudioBuffers const & other)
+ : _channels (other._channels)
+ , _frames (other._frames)
+ , _allocated_frames (other._frames)
+{
+ _data = new float*[_channels];
+ for (int i = 0; i < _channels; ++i) {
+ _data[i] = new float[_frames];
+ memcpy (_data[i], other._data[i], _frames * sizeof (float));
+ }
+}
+
+/** AudioBuffers destructor */
AudioBuffers::~AudioBuffers ()
{
for (int i = 0; i < _channels; ++i) {
delete[] _data;
}
+/** @param c Channel index.
+ * @return Buffer for this channel.
+ */
float*
AudioBuffers::data (int c) const
{
assert (c >= 0 && c < _channels);
return _data[c];
}
-
+
+/** Set the number of frames that these AudioBuffers will report themselves
+ * as having.
+ * @param f Frames; must be less than or equal to the number of allocated frames.
+ */
void
AudioBuffers::set_frames (int f)
{
- assert (f <= _frames);
+ assert (f <= _allocated_frames);
_frames = f;
}
+/** Make all samples on all channels silent */
+void
+AudioBuffers::make_silent ()
+{
+ for (int i = 0; i < _channels; ++i) {
+ make_silent (i);
+ }
+}
+
+/** Make all samples on a given channel silent.
+ * @param c Channel.
+ */
+void
+AudioBuffers::make_silent (int c)
+{
+ assert (c >= 0 && c < _channels);
+
+ for (int i = 0; i < _frames; ++i) {
+ _data[c][i] = 0;
+ }
+}
+
+/** Copy data from another AudioBuffers to this one. All channels are copied.
+ * @param from AudioBuffers to copy from; must have the same number of channels as this.
+ * @param frames_to_copy Number of frames to copy.
+ * @param read_offset Offset to read from in `from'.
+ * @param write_offset Offset to write to in `to'.
+ */
+void
+AudioBuffers::copy_from (AudioBuffers* from, int frames_to_copy, int read_offset, int write_offset)
+{
+ assert (from->channels() == channels());
+
+ assert (from);
+ assert (read_offset >= 0 && (read_offset + frames_to_copy) <= from->_allocated_frames);
+ assert (write_offset >= 0 && (write_offset + frames_to_copy) <= _allocated_frames);
+
+ for (int i = 0; i < _channels; ++i) {
+ memcpy (_data[i] + write_offset, from->_data[i] + read_offset, frames_to_copy * sizeof(float));
+ }
+}
+
+/** Move audio data around.
+ * @param from Offset to move from.
+ * @param to Offset to move to.
+ * @param frames Number of frames to move.
+ */
+
+void
+AudioBuffers::move (int from, int to, int frames)
+{
+ if (frames == 0) {
+ return;
+ }
+
+ assert (from >= 0);
+ assert (from < _frames);
+ assert (to >= 0);
+ assert (to < _frames);
+ assert (frames > 0);
+ assert (frames <= _frames);
+ assert ((from + frames) <= _frames);
+ assert ((to + frames) <= _frames);
+ for (int i = 0; i < _channels; ++i) {
+ memmove (_data[i] + to, _data[i] + from, frames * sizeof(float));
+ }
+}
+
+/** Add data from from `from', `from_channel' to our channel `to_channel' */
+void
+AudioBuffers::accumulate (shared_ptr<AudioBuffers> from, int from_channel, int to_channel)
+{
+ int const N = frames ();
+ assert (from->frames() == N);
+
+ float* s = from->data (from_channel);
+ float* d = _data[to_channel];
+
+ for (int i = 0; i < N; ++i) {
+ *d++ += *s++;
+ }
+}
+
+/** Trip an assert if the caller is not in the UI thread */
+void
+ensure_ui_thread ()
+{
+ assert (boost::this_thread::get_id() == ui_thread);
+}
+
+/** @param v Content video frame.
+ * @param audio_sample_rate Source audio sample rate.
+ * @param frames_per_second Number of video frames per second.
+ * @return Equivalent number of audio frames for `v'.
+ */
+int64_t
+video_frames_to_audio_frames (ContentVideoFrame v, float audio_sample_rate, float frames_per_second)
+{
+ return ((int64_t) v * audio_sample_rate / frames_per_second);
+}
+
+/** @return A pair containing CPU model name and the number of processors */
+pair<string, int>
+cpu_info ()
+{
+ pair<string, int> info;
+ info.second = 0;
+#ifdef DCPOMATIC_POSIX
+ ifstream f (N_("/proc/cpuinfo"));
+ while (f.good ()) {
+ string l;
+ getline (f, l);
+ if (boost::algorithm::starts_with (l, N_("model name"))) {
+ string::size_type const c = l.find (':');
+ if (c != string::npos) {
+ info.first = l.substr (c + 2);
+ }
+ } else if (boost::algorithm::starts_with (l, N_("processor"))) {
+ ++info.second;
+ }
+ }
+#endif
+
+ return info;
+}
+
+string
+audio_channel_name (int c)
+{
+ assert (MAX_AUDIO_CHANNELS == 6);
+
+ /* TRANSLATORS: these are the names of audio channels; Lfe (sub) is the low-frequency
+ enhancement channel (sub-woofer)./
+ */
+ string const channels[] = {
+ _("Left"),
+ _("Right"),
+ _("Centre"),
+ _("Lfe (sub)"),
+ _("Left surround"),
+ _("Right surround"),
+ };
+
+ return channels[c];
+}
+
+FrameRateConversion::FrameRateConversion (float source, int dcp)
+ : skip (false)
+ , repeat (false)
+ , change_speed (false)
+{
+ if (fabs (source / 2.0 - dcp) < (fabs (source - dcp))) {
+ skip = true;
+ } else if (fabs (source * 2 - dcp) < fabs (source - dcp)) {
+ repeat = true;
+ }
+
+ change_speed = !about_equal (source * factor(), dcp);
+
+ if (!skip && !repeat && !change_speed) {
+ description = _("DCP and source have the same rate.\n");
+ } else {
+ if (skip) {
+ description = _("DCP will use every other frame of the source.\n");
+ } else if (repeat) {
+ description = _("Each source frame will be doubled in the DCP.\n");
+ }
+
+ if (change_speed) {
+ float const pc = dcp * 100 / (source * factor());
+ description += String::compose (_("DCP will run at %1%% of the source speed.\n"), pc);
+ }
+ }
+}
+
+LocaleGuard::LocaleGuard ()
+ : _old (0)
+{
+ char const * old = setlocale (LC_NUMERIC, 0);
+
+ if (old) {
+ _old = strdup (old);
+ if (strcmp (_old, "POSIX")) {
+ setlocale (LC_NUMERIC, "POSIX");
+ }
+ }
+}
+
+LocaleGuard::~LocaleGuard ()
+{
+ setlocale (LC_NUMERIC, _old);
+ free (_old);
+}
projects / dcpomatic.git / blobdiff