mirror of https://github.com/odrling/Aegisub
Clean up DummyVideoProvider a bit
Originally committed to SVN as r6443.
This commit is contained in:
Thomas Goyne
parent
f48ccc0640
commit
68c9989c89
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@ -36,183 +36,91 @@
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#include "config.h"
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#include "video_provider_dummy.h"
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#ifndef AGI_PRE
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#include <wx/colour.h>
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#include <wx/tokenzr.h>
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#endif
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#include "colorspace.h"
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#include "video_provider_dummy.h"
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/// @brief Constructor
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/// @param _fps
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/// @param frames
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/// @param _width
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/// @param _height
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/// @param colour
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/// @param pattern
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///
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void DummyVideoProvider::Create(double _fps, int frames, int _width, int _height, const wxColour &colour, bool pattern) {
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lastFrame = -1;
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framecount = frames;
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fps = _fps;
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width = _width;
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height = _height;
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void DummyVideoProvider::Create(double fps, int frames, int width, int height, unsigned char red, unsigned char green, unsigned char blue, bool pattern) {
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this->framecount = frames;
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this->fps = fps;
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this->width = width;
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this->height = height;
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this->frame = AegiVideoFrame(width, height);
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frame = AegiVideoFrame(width,height);
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unsigned char *dst = frame.data;
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unsigned char r = colour.Red(), g = colour.Green(), b = colour.Blue();
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unsigned char h, s, l, lr, lg, lb; // light variants
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rgb_to_hsl(r, g, b, &h, &s, &l);
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l += 24;
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if (l < 24) l -= 48;
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hsl_to_rgb(h, s, l, &lr, &lg, &lb);
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unsigned char colors[2][4] = {
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blue, green, red, 0,
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0, 0, 0, 0
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};
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if (pattern) {
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// Generate light version
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unsigned char h, s, l;
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rgb_to_hsl(red, blue, green, &h, &s, &l);
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l += 24;
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if (l < 24) l -= 48;
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hsl_to_rgb(h, s, l, &colors[1][2], &colors[1][1], &colors[1][0]);
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// Divide into a 8x8 grid and use light colours when row % 2 != col % 2
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int ppitch = frame.pitch / frame.GetBpp();
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for (unsigned int y = 0; y < frame.h; ++y) {
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if ((y / 8) & 1) {
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for (int x = 0; x < ppitch; ++x) {
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if ((x / 8) & 1) {
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*dst++ = b;
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*dst++ = g;
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*dst++ = r;
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*dst++ = 0;
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}
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else {
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*dst++ = lb;
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*dst++ = lg;
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*dst++ = lr;
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*dst++ = 0;
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}
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}
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}
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else {
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for (int x = 0; x < ppitch; ++x) {
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if ((x / 8) & 1) {
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*dst++ = lb;
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*dst++ = lg;
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*dst++ = lr;
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*dst++ = 0;
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}
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else {
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*dst++ = b;
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*dst++ = g;
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*dst++ = r;
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*dst++ = 0;
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}
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}
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for (int x = 0; x < ppitch; ++x) {
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memcpy(dst, colors[((y / 8) & 1) != ((x / 8) & 1)], 4);
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dst += 4;
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}
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}
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}
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else {
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for (int i=frame.pitch*frame.h/frame.GetBpp();--i>=0;) {
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*dst++ = b;
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*dst++ = g;
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*dst++ = r;
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*dst++ = 0;
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}
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for (int i = frame.pitch * frame.h / frame.GetBpp() - 1; i >= 0; --i)
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memcpy(dst + i * 4, colors[0], 4);
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}
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}
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/// @brief Parsing constructor
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/// @param filename
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///
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DummyVideoProvider::DummyVideoProvider(wxString filename)
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{
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static long get_long(wxStringTokenizer &t, const char *err) {
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long ret;
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if (!t.GetNextToken().ToLong(&ret))
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throw VideoOpenError(err);
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return ret;
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}
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DummyVideoProvider::DummyVideoProvider(wxString const& filename) {
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wxString params;
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if (!filename.StartsWith("?dummy:", ¶ms)) {
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if (!filename.StartsWith("?dummy:", ¶ms))
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throw agi::FileNotFoundError("Attempted creating dummy video provider with non-dummy filename");
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}
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wxStringTokenizer t(params, ":");
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if (t.CountTokens() < 7) {
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if (t.CountTokens() < 7)
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throw VideoOpenError("Too few fields in dummy video parameter list");
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}
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double fps;
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long _frames, _width, _height, red, green, blue;
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bool pattern = false;
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wxString field = t.GetNextToken();
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if (!field.ToDouble(&fps)) {
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if (!t.GetNextToken().ToDouble(&fps))
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throw VideoOpenError("Unable to parse fps field in dummy video parameter list");
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}
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field = t.GetNextToken();
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if (!field.ToLong(&_frames)) {
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throw VideoOpenError("Unable to parse framecount field in dummy video parameter list");
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}
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long frames = get_long(t, "Unable to parse framecount field in dummy video parameter list");
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long width = get_long(t, "Unable to parse width field in dummy video parameter list");
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long height = get_long(t, "Unable to parse height field in dummy video parameter list");
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long red = get_long(t, "Unable to parse red colour field in dummy video parameter list");
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long green = get_long(t, "Unable to parse green colour field in dummy video parameter list");
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long blue = get_long(t, "Unable to parse blue colour field in dummy video parameter list");
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field = t.GetNextToken();
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if (!field.ToLong(&_width)) {
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throw VideoOpenError("Unable to parse width field in dummy video parameter list");
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}
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bool pattern = t.GetNextToken() == "c";
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field = t.GetNextToken();
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if (!field.ToLong(&_height)) {
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throw VideoOpenError("Unable to parse height field in dummy video parameter list");
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}
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field = t.GetNextToken();
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if (!field.ToLong(&red)) {
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throw VideoOpenError("Unable to parse red colour field in dummy video parameter list");
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}
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field = t.GetNextToken();
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if (!field.ToLong(&green)) {
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throw VideoOpenError("Unable to parse green colour field in dummy video parameter list");
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}
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field = t.GetNextToken();
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if (!field.ToLong(&blue)) {
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throw VideoOpenError("Unable to parse blue colour field in dummy video parameter list");
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}
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field = t.GetNextToken();
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if (field == "c") {
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pattern = true;
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}
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Create(fps, _frames, _width, _height, wxColour(red, green, blue), pattern);
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Create(fps, frames, width, height, red, green, blue, pattern);
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}
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/// @brief Direct constructor
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/// @param _fps
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/// @param frames
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/// @param _width
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/// @param _height
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/// @param colour
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/// @param pattern
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///
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DummyVideoProvider::DummyVideoProvider(double _fps, int frames, int _width, int _height, const wxColour &colour, bool pattern) {
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Create(_fps, frames, _width, _height, colour, pattern);
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DummyVideoProvider::DummyVideoProvider(double fps, int frames, int width, int height, const wxColour &colour, bool pattern) {
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Create(fps, frames, width, height, colour.Red(), colour.Green(), colour.Blue(), pattern);
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}
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/// @brief Destructor
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///
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DummyVideoProvider::~DummyVideoProvider() {
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frame.Clear();
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}
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/// @brief Construct a fake filename describing the video
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/// @param fps
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/// @param frames
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/// @param _width
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/// @param _height
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/// @param colour
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/// @param pattern
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/// @return
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///
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wxString DummyVideoProvider::MakeFilename(double fps, int frames, int _width, int _height, const wxColour &colour, bool pattern) {
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return wxString::Format("?dummy:%f:%d:%d:%d:%d:%d:%d:%s", fps, frames, _width, _height, colour.Red(), colour.Green(), colour.Blue(), pattern?"c":"");
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}
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/// @brief Get frame
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/// @param n
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/// @return
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///
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const AegiVideoFrame DummyVideoProvider::GetFrame(int n) {
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lastFrame = n;
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return frame;
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wxString DummyVideoProvider::MakeFilename(double fps, int frames, int width, int height, const wxColour &colour, bool pattern) {
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return wxString::Format("?dummy:%f:%d:%d:%d:%d:%d:%d:%s", fps, frames, width, height, colour.Red(), colour.Green(), colour.Blue(), pattern ? "c" : "");
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}
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@ -34,53 +34,61 @@
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/// @ingroup video_input
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///
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// The dummy video provider needs a header, since it needs to be created directly as a special case
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#ifndef AGI_PRE
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#include <wx/colour.h>
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#endif
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#include "include/aegisub/video_provider.h"
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#include "video_frame.h"
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/// DOCME
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class wxColour;
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/// @class DummyVideoProvider
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/// @brief DOCME
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/// @brief A dummy video provider for when opening a file is just too much effort
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///
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/// DOCME
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/// This simply returns a single constant frame, which can either be a flat
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/// color or a checkerboard pattern
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class DummyVideoProvider : public VideoProvider {
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/// DOCME
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int lastFrame;
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int framecount; ///< Length of the dummy video in frames
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agi::vfr::Framerate fps; ///< Frame rate to use
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int width; ///< Width in pixels
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int height; ///< Height in pixels
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/// DOCME
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int framecount;
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/// DOCME
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agi::vfr::Framerate fps;
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/// DOCME
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int width;
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/// DOCME
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int height;
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/// DOCME
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/// The single image which is returned for all frames
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AegiVideoFrame frame;
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void Create(double fps, int frames, int _width, int _height, const wxColour &colour, bool pattern);
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/// Create the dummy frame from the given parameters
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/// @param fps Frame rate of the dummy video
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/// @param frames Length in frames of the dummy video
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/// @param width Width in pixels of the dummy video
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/// @param height Height in pixels of the dummy video
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/// @param red Red component of the primary colour of the dummy video
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/// @param green Green component of the primary colour of the dummy video
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/// @param blue Blue component of the primary colour of the dummy video
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/// @param pattern Use a checkerboard pattern rather than a solid colour
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void Create(double fps, int frames, int width, int height, unsigned char red, unsigned char green, unsigned char blue, bool pattern);
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public:
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DummyVideoProvider(wxString filename);
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DummyVideoProvider(double fps, int frames, int _width, int _height, const wxColour &colour, bool pattern);
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/// Create a dummy video from a string returned from MakeFilename
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DummyVideoProvider(wxString const& filename);
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/// Create a dummy video from separate parameters
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/// @param fps Frame rate of the dummy video
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/// @param frames Length in frames of the dummy video
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/// @param width Width in pixels of the dummy video
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/// @param height Height in pixels of the dummy video
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/// @param colour Primary colour of the dummy video
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/// @param pattern Use a checkerboard pattern rather than a solid colour
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DummyVideoProvider(double fps, int frames, int width, int height, wxColour const& colour, bool pattern);
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/// Destructor
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~DummyVideoProvider();
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const AegiVideoFrame GetFrame(int n);
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static wxString MakeFilename(double fps, int frames, int _width, int _height, const wxColour &colour, bool pattern);
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/// Make a fake filename which when passed to the constructor taking a
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/// string will result in a video with the given parameters
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static wxString MakeFilename(double fps, int frames, int width, int height, wxColour const& colour, bool pattern);
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int GetFrameCount() const { return framecount; }
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int GetWidth() const { return width; }
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int GetHeight() const { return height; }
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agi::vfr::Framerate GetFPS() const { return fps; }
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const AegiVideoFrame GetFrame(int n) { return frame; }
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int GetFrameCount() const { return framecount; }
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int GetWidth() const { return width; }
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int GetHeight() const { return height; }
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agi::vfr::Framerate GetFPS() const { return fps; }
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std::vector<int> GetKeyFrames() const { return std::vector<int>(); };
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wxString GetDecoderName() const { return "Dummy Video Provider"; }
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wxString GetDecoderName() const { return "Dummy Video Provider"; }
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};
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