#include <iomanip>
#include <iostream>
#include <fstream>
+#include <climits>
#ifdef DVDOMATIC_POSIX
#include <execinfo.h>
#include <cxxabi.h>
#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 "sound_processor.h"
-#ifndef DVDOMATIC_DISABLE_PLAYER
-#include "player_manager.h"
-#endif
+#include "config.h"
using namespace std;
using namespace boost;
+using libdcp::Size;
thread::id ui_thread;
}
#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.
*/
{
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()) << ", "
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.
* Must be called from the UI thread, if there is one.
*/
SoundProcessor::setup_sound_processors ();
ui_thread = this_thread::get_id ();
-
-#ifdef DVDOMATIC_POSIX
- struct sigaction sa;
- sa.sa_flags = SA_SIGINFO;
- sigemptyset (&sa.sa_mask);
- sa.sa_sigaction = sigchld_handler;
- sigaction (SIGCHLD, &sa, 0);
-#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;
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)
{
return s.str ();
}
-DCPFrameRate
-dcp_frame_rate (float fps)
+static bool about_equal (float a, float b)
{
- DCPFrameRate dfr;
+ /* 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.
- dfr.run_fast = (fps != rint (fps));
- dfr.frames_per_second = rint (fps);
- dfr.skip = 1;
+ 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
- /* XXX: somewhat arbitrary */
- if (fps == 50) {
- dfr.frames_per_second = 25;
- dfr.skip = 2;
+ 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_)
+ {}
+
+ bool skip () const {
+ return !about_equal (source, dcp) && source > dcp;
+ }
+
+ bool repeat () const {
+ return !about_equal (source, dcp) && source < dcp;
+ }
+
+ float source;
+ int dcp;
+};
+
+/** @param fps Arbitrary source frames-per-second value */
+/** XXX: this could be slow-ish */
+DCPFrameRate::DCPFrameRate (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));
}
- return dfr;
+ /* 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;
+ }
+
+ if (!best) {
+ throw EncodeError ("cannot find a suitable DCP frame rate for this source");
+ }
+
+ frames_per_second = best->dcp;
+ skip = best->skip ();
+ repeat = best->repeat ();
+ change_speed = !about_equal (source_fps * factor(), frames_per_second);
}
/** @param An arbitrary sampling rate.
return 96000;
}
-bool operator== (Size const & a, Size const & b)
+int
+dcp_audio_channels (int f)
{
- return (a.width == b.width && a.height == b.height);
+ if (f == 1) {
+ /* The source is mono, so to put the mono channel into
+ the centre we need to generate a 5.1 soundtrack.
+ */
+ return 6;
+ }
+
+ return f;
}
bool operator== (Crop const & a, Crop const & b)
void
Socket::connect (asio::ip::basic_resolver_entry<asio::ip::tcp> const & endpoint, int timeout)
{
+ _deadline.expires_from_now (posix_time::seconds (timeout));
system::error_code ec = asio::error::would_block;
_socket.async_connect (endpoint, lambda::var(ec) = lambda::_1);
do {
memcpy (data, _buffer, size);
}
+/** @param other A Rect.
+ * @return The intersection of this with `other'.
+ */
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;
}
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)
}
}
+/** Copy constructor.
+ * @param other Other AudioBuffers; data is copied.
+ */
AudioBuffers::AudioBuffers (AudioBuffers const & other)
: _channels (other._channels)
, _frames (other._frames)
}
}
+/** 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)
{
_frames = f;
}
+/** Make all samples on all channels silent */
void
AudioBuffers::make_silent ()
{
for (int i = 0; i < _channels; ++i) {
- for (int j = 0; j < _frames; ++j) {
- _data[i][j] = 0;
- }
+ 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)
{
}
}
+/** Trip an assert if the caller is not in the UI thread */
void
ensure_ui_thread ()
{
assert (this_thread::get_id() == ui_thread);
}
+
+/** @param v Source 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 (SourceFrame v, float audio_sample_rate, float frames_per_second)
+{
+ return ((int64_t) v * audio_sample_rate / frames_per_second);
+}
+
+/** @param f Filename.
+ * @return true if this file is a still image, false if it is something else.
+ */
+bool
+still_image_file (string f)
+{
+#if BOOST_FILESYSTEM_VERSION == 3
+ string ext = boost::filesystem::path(f).extension().string();
+#else
+ string ext = boost::filesystem::path(f).extension();
+#endif
+
+ transform (ext.begin(), ext.end(), ext.begin(), ::tolower);
+
+ return (ext == ".tif" || ext == ".tiff" || ext == ".jpg" || ext == ".jpeg" || ext == ".png");
+}
+
+/** @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 DVDOMATIC_POSIX
+ ifstream f ("/proc/cpuinfo");
+ while (f.good ()) {
+ string l;
+ getline (f, l);
+ if (boost::algorithm::starts_with (l, "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, "processor")) {
+ ++info.second;
+ }
+ }
+#endif
+
+ return info;
+}
projects / dcpomatic.git / blobdiff