#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>
ui_thread = this_thread::get_id ();
}
+/** @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)
{
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 ();
}
+/** @param fps Arbitrary frames-per-second value.
+ * @return DCPFrameRate for this frames-per-second.
+ */
DCPFrameRate
dcp_frame_rate (float fps)
{
memcpy (data, _buffer, size);
}
+/** @param other A Rect.
+ * @return The intersection of this with `other'.
+ */
Rect
Rect::intersection (Rect const & other) const
{
* @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");
+}
projects / dcpomatic.git / blobdiff