#include <iomanip>
#include <iostream>
#include <fstream>
-#ifdef DVDOMATIC_POSIX
+#include <climits>
+#ifdef DCPOMATIC_POSIX
#include <execinfo.h>
#include <cxxabi.h>
-#include <sys/types.h>
-#include <sys/socket.h>
#endif
#include <libssh/libssh.h>
#include <signal.h>
#include <boost/algorithm/string.hpp>
+#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 "player_manager.h"
-
-#ifdef DEBUG_HASH
-#include <mhash.h>
-#endif
-
-using namespace std;
-using namespace boost;
+#include "sound_processor.h"
+#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 boost::optional;
+using libdcp::Size;
+
+boost::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 << std::setfill ('0') << m << N_(":");
hms.width (2);
- hms << setfill ('0') << s;
+ hms << std::setfill ('0') << s;
return hms.str ();
}
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]) << "\n";
}
free (strings);
}
#endif
-/** @param s Sample format.
- * @return String representation.
- */
-string
-audio_sample_format_to_string (AVSampleFormat s)
-{
- /* Our sample format handling is not exactly complete */
-
- switch (s) {
- case AV_SAMPLE_FMT_S16:
- return "S16";
- default:
- break;
- }
-
- return "Unknown";
-}
-
-/** @param s String representation of a sample format, as returned from audio_sample_format_to_string().
- * @return Sample format.
- */
-AVSampleFormat
-audio_sample_format_from_string (string s)
-{
- if (s == "S16") {
- return AV_SAMPLE_FMT_S16;
- }
-
- return AV_SAMPLE_FMT_NONE;
-}
-
-/** @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 ();
}
-#ifdef DVDOMATIC_POSIX
-/** Write some data to a socket.
- * @param fd Socket file descriptor.
- * @param data Data.
- * @param size Amount to write, in bytes.
- */
-void
-socket_write (int fd, uint8_t const * data, int size)
-{
- uint8_t const * p = data;
- while (size) {
- int const n = send (fd, p, size, MSG_NOSIGNAL);
- if (n < 0) {
- stringstream s;
- s << "could not write (" << strerror (errno) << ")";
- throw NetworkError (s.str ());
- }
-
- size -= n;
- p += n;
- }
-}
-#endif
-
double
seconds (struct timeval t)
{
return t.tv_sec + (double (t.tv_usec) / 1e6);
}
-#ifdef DVDOMATIC_POSIX
-/** @param fd File descriptor to read from */
-SocketReader::SocketReader (int fd)
- : _fd (fd)
- , _buffer_data (0)
-{
-
-}
-
-/** 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.
+/** 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
-SocketReader::consume (int size)
+dcpomatic_setup ()
{
- assert (_buffer_data >= size);
+ avfilter_register_all ();
- _buffer_data -= size;
- if (_buffer_data > 0) {
- /* Shift still-valid data to the start of the buffer */
- memmove (_buffer, _buffer + size, _buffer_data);
- }
-}
-
-/** 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.
- */
-void
-SocketReader::read_definite_and_consume (uint8_t* data, int size)
-{
- 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 (_fd, data, size);
- if (n <= 0) {
- throw NetworkError ("could not read");
- }
+ Format::setup_formats ();
+ DCPContentType::setup_dcp_content_types ();
+ Scaler::setup_scalers ();
+ Filter::setup_filters ();
+ SoundProcessor::setup_sound_processors ();
- data += n;
- size -= n;
- }
+ ui_thread = boost::this_thread::get_id ();
}
-/** 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
-SocketReader::read_indefinite (uint8_t* data, int size)
+#ifdef DCPOMATIC_WINDOWS
+boost::filesystem::path
+mo_path ()
{
- 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 (_fd, _buffer + _buffer_data, to_read);
- 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);
+ 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
-#ifdef DVDOMATIC_POSIX
void
-sigchld_handler (int, siginfo_t* info, void *)
+dcpomatic_setup_i18n (string lang)
{
- PlayerManager::instance()->child_exited (info->si_pid);
-}
+#ifdef DCPOMATIC_POSIX
+ lang += ".UTF8";
#endif
-/** Call the required functions to set up DVD-o-matic's static arrays, etc. */
-void
-dvdomatic_setup ()
-{
- Format::setup_formats ();
- DCPContentType::setup_dcp_content_types ();
- Scaler::setup_scalers ();
- Filter::setup_filters ();
+ 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);
+ }
-#ifdef DVDOMATIC_POSIX
- struct sigaction sa;
- sa.sa_flags = SA_SIGINFO;
- sigemptyset (&sa.sa_mask);
- sa.sa_sigaction = sigchld_handler;
- sigaction (SIGCHLD, &sa, 0);
+ 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 out;
}
-#ifdef DEBUG_HASH
-void
-md5_data (string title, void const * data, int size)
+string
+md5_digest (void const * data, int size)
{
- MHASH ht = mhash_init (MHASH_MD5);
- if (ht == MHASH_FAILED) {
- throw EncodeError ("could not create hash thread");
- }
-
- mhash (ht, data, size);
-
- uint8_t hash[16];
- mhash_deinit (ht, hash);
+ MD5_CTX md5_context;
+ MD5_Init (&md5_context);
+ MD5_Update (&md5_context, data, size);
+ unsigned char digest[MD5_DIGEST_LENGTH];
+ MD5_Final (digest, &md5_context);
- printf ("%s [%d]: ", title.c_str (), size);
- for (int i = 0; i < int (mhash_get_block_size (MHASH_MD5)); ++i) {
- printf ("%.2x", hash[i]);
+ stringstream s;
+ for (int i = 0; i < MD5_DIGEST_LENGTH; ++i) {
+ s << std::hex << std::setfill('0') << std::setw(2) << ((int) digest[i]);
}
- printf ("\n");
+
+ return s.str ();
}
-#endif
+/** @param file File name.
+ * @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(), std::ios::binary);
if (!f.good ()) {
- throw OpenFileError (file);
+ throw OpenFileError (file.string());
}
- f.seekg (0, ios::end);
+ f.seekg (0, std::ios::end);
int bytes = f.tellg ();
- f.seekg (0, ios::beg);
+ f.seekg (0, std::ios::beg);
int const buffer_size = 64 * 1024;
char buffer[buffer_size];
stringstream s;
for (int i = 0; i < MD5_DIGEST_LENGTH; ++i) {
- s << hex << setfill('0') << setw(2) << ((int) digest[i]);
+ s << std::hex << std::setfill('0') << std::setw(2) << ((int) digest[i]);
}
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 = std::numeric_limits<float>::max ();
+ 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).
+ */
+int
+dcp_audio_sample_rate (int fs)
+{
+ if (fs <= 48000) {
+ return 48000;
+ }
+
+ return 96000;
+}
+
+/** @param index Colour LUT index.
+ * @return Human-readable name.
+ */
+string
+colour_lut_index_to_name (int index)
+{
+ switch (index) {
+ case 0:
+ return _("sRGB");
+ case 1:
+ return _("Rec 709");
+ }
+
+ assert (false);
+ return N_("");
+}
+
+Socket::Socket (int timeout)
+ : _deadline (_io_service)
+ , _socket (_io_service)
+ , _timeout (timeout)
+{
+ _deadline.expires_at (boost::posix_time::pos_infin);
+ check ();
+}
+
+void
+Socket::check ()
+{
+ if (_deadline.expires_at() <= boost::asio::deadline_timer::traits_type::now ()) {
+ _socket.close ();
+ _deadline.expires_at (boost::posix_time::pos_infin);
+ }
+
+ _deadline.async_wait (boost::bind (&Socket::check, this));
+}
+
+/** Blocking connect.
+ * @param endpoint End-point to connect to.
+ */
+void
+Socket::connect (boost::asio::ip::basic_resolver_entry<boost::asio::ip::tcp> const & endpoint)
+{
+ _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 == boost::asio::error::would_block);
+
+ if (ec || !_socket.is_open ()) {
+ throw NetworkError (_("connect timed out"));
+ }
+}
+
+/** Blocking write.
+ * @param data Buffer to write.
+ * @param size Number of bytes to write.
+ */
+void
+Socket::write (uint8_t const * data, int size)
+{
+ _deadline.expires_from_now (boost::posix_time::seconds (_timeout));
+ boost::system::error_code ec = boost::asio::error::would_block;
+
+ boost::asio::async_write (_socket, boost::asio::buffer (data, size), boost::lambda::var(ec) = boost::lambda::_1);
+
+ do {
+ _io_service.run_one ();
+ } while (ec == boost::asio::error::would_block);
+
+ if (ec) {
+ throw NetworkError (ec.message ());
+ }
+}
+
+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.
+ */
+void
+Socket::read (uint8_t* data, int size)
+{
+ _deadline.expires_from_now (boost::posix_time::seconds (_timeout));
+ boost::system::error_code ec = boost::asio::error::would_block;
+
+ boost::asio::async_read (_socket, boost::asio::buffer (data, size), boost::lambda::var(ec) = boost::lambda::_1);
+
+ do {
+ _io_service.run_one ();
+ } while (ec == boost::asio::error::would_block);
+
+ if (ec) {
+ throw NetworkError (ec.message ());
+ }
+}
+
+uint32_t
+Socket::read_uint32 ()
+{
+ uint32_t v;
+ read (reinterpret_cast<uint8_t *> (&v), 4);
+ return ntohl (v);
+}
+
+/** @param other A Rect.
+ * @return The intersection of this with `other'.
+ */
+Rect
+Rect::intersection (Rect const & other) const
+{
+ int const tx = max (x, other.x);
+ int const ty = max (y, other.y);
+
+ return Rect (
+ tx, ty,
+ min (x + width, other.x + other.width) - tx,
+ min (y + height, other.y + other.height) - ty
+ );
+}
+
+/** Round a number up to the nearest multiple of another number.
+ * @param c Index.
+ * @param s Array of numbers to round, indexed by c.
+ * @param t Multiple to round to.
+ * @return Rounded number.
+ */
+int
+stride_round_up (int c, int const * stride, int t)
+{
+ 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
+ * with # are ignored.
+ * @param s Stream to read.
+ * @return key/value pairs.
+ */
+multimap<string, string>
+read_key_value (istream &s)
+{
+ multimap<string, string> kv;
+
+ string line;
+ while (getline (s, line)) {
+ if (line.empty ()) {
+ continue;
+ }
+
+ if (line[0] == '#') {
+ continue;
+ }
+
+ if (line[line.size() - 1] == '\r') {
+ line = line.substr (0, line.size() - 1);
+ }
+
+ size_t const s = line.find (' ');
+ if (s == string::npos) {
+ continue;
+ }
+
+ kv.insert (make_pair (line.substr (0, s), line.substr (s + 1)));
+ }
+
+ return kv;
+}
+
+string
+get_required_string (multimap<string, string> const & kv, string k)
+{
+ if (kv.count (k) > 1) {
+ 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));
+ }
+
+ return i->second;
+}
+
+int
+get_required_int (multimap<string, string> const & kv, string k)
+{
+ string const v = get_required_string (kv, k);
+ return lexical_cast<int> (v);
+}
+
+float
+get_required_float (multimap<string, string> const & kv, string k)
+{
+ string const v = get_required_string (kv, k);
+ return lexical_cast<float> (v);
+}
+
+string
+get_optional_string (multimap<string, string> const & kv, string k)
+{
+ if (kv.count (k) > 1) {
+ throw StringError (N_("unexpected multiple keys in key-value set"));
+ }
+
+ multimap<string, string>::const_iterator i = kv.find (k);
+ if (i == kv.end ()) {
+ return N_("");
+ }
+
+ return i->second;
+}
+
+int
+get_optional_int (multimap<string, string> const & kv, string k)
+{
+ if (kv.count (k) > 1) {
+ throw StringError (N_("unexpected multiple keys in key-value set"));
+ }
+
+ multimap<string, string>::const_iterator i = kv.find (k);
+ if (i == kv.end ()) {
+ return 0;
+ }
+
+ 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) {
+ _data[i] = new float[frames];
+ }
+}
+
+/** 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));
+ }
+}
+
+/* XXX: it's a shame that this is a copy-and-paste of the above;
+ probably fixable with c++0x.
+*/
+AudioBuffers::AudioBuffers (boost::shared_ptr<const AudioBuffers> 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[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 <= _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<const 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