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video frame improvement

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Originally committed to SVN as r904.
This commit is contained in:
Rodrigo Braz Monteiro 2007-01-28 03:26:03 +00:00
parent e07a71368b
commit 420ac447ee
3 changed files with 28 additions and 25 deletions
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43
aegisub/video_frame.cpp
View file

@ -45,8 +45,8 @@ AegiVideoFrame::AegiVideoFrame() {
for (int i=0;i<4;i++) {
data[i] = NULL;
pitch[i] = 0;
memSize[i] = 0;
}
memSize = 0;
w = 0;
h = 0;
format = FORMAT_RGB24;
@ -78,18 +78,24 @@ AegiVideoFrame::AegiVideoFrame(int width,int height,VideoFrameFormat fmt) {
////////////
// Allocate
void AegiVideoFrame::Allocate() {
for (int i=0;i<4;i++) {
// Get size
int height = h;
if (format == FORMAT_YV12 && i > 0) height/=2;
unsigned int size = pitch[i]*height;
// Get size
int height = h;
unsigned int size = pitch[0]*height;
if (format == FORMAT_YV12) size = size * 3 / 2;
else size = size * GetBpp();
// Reallocate, if necessary
if (memSize[i] != size) {
if (cppAlloc) delete[] data[i];
else free(data[i]);
data[i] = new unsigned char[size];
memSize[i] = size;
// Reallocate, if necessary
if (memSize != size) {
if (cppAlloc) delete[] data[0];
else free(data[0]);
data[0] = new unsigned char[size];
for (int i=1;i<4;i++) data[i] = NULL;
memSize = size;
// Planar
if (format == FORMAT_YV12) {
data[1] = data[0] + (pitch[0]*height);
data[2] = data[0] + (pitch[0]*height*5/4);
}
}
@ -100,14 +106,13 @@ void AegiVideoFrame::Allocate() {
/////////
// Clear
void AegiVideoFrame::Clear() {
if (cppAlloc) delete[] data[0];
else free(data[0]);
for (int i=0;i<4;i++) {
if (data[i]) {
if (cppAlloc) delete[] data[i];
else free(data[i]);
data[i] = NULL;
}
data[i] = NULL;
pitch[i] = 0;
}
memSize = 0;
w = 0;
h = 0;
format = FORMAT_RGB24;
@ -125,9 +130,7 @@ void AegiVideoFrame::CopyFrom(const AegiVideoFrame &source) {
format = source.format;
for (int i=0;i<4;i++) pitch[i] = source.pitch[i];
Allocate();
for (int i=0;i<4;i++) {
memcpy(data[i],source.data[i],memSize[i]);
}
memcpy(data[0],source.data[0],memSize);
flipped = source.flipped;
invertChannels = source.invertChannels;
}

2
aegisub/video_frame.h
View file

@ -51,7 +51,7 @@ enum VideoFrameFormat {
// Video Frame class
class AegiVideoFrame {
private:
unsigned int memSize[4];
unsigned int memSize;
public:
unsigned char *data[4]; // Pointers to the data planes. Interleaved formats only use data[0]

8
aegisub/video_provider_dshow.cpp
View file

@ -429,14 +429,14 @@ void DirectShowVideoProvider::ReadFrame(long long timestamp, unsigned format, un
// Interleaved
else {
unsigned int datalen = stride*height;
df->frame.Allocate();
memcpy(df->frame.data[0],src,datalen);
// Set format
if (format == IVS_RGB24) df->frame.format = FORMAT_RGB24;
else if (format == IVS_RGB32) df->frame.format = FORMAT_RGB32;
else if (format == IVS_YV12) df->frame.format = FORMAT_YV12;
unsigned int datalen = stride*height;
df->frame.Allocate();
memcpy(df->frame.data[0],src,datalen);
}
}