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Fixed a bug with bitshifting float color values. ImageMagick can be built with different types of Quantum color values, and Im trying to make libopenshot work seemlessl with them.

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This commit is contained in:
Jonathan Thomas
2014-07-03 17:52:16 -05:00
parent 4509254895
commit 77f4586f21
4 changed files with 11 additions and 11 deletions
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6
src/DecklinkOutput.cpp
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@@ -265,9 +265,9 @@ void DeckLinkOutputDelegate::WriteFrame(tr1::shared_ptr<openshot::Frame> frame)
{
// Update buffer (which is already linked to the AVFrame: pFrameRGB)
castBytes[row] = 0; // alpha
castBytes[row+1] = pixel_packets[packet].red >> bit_shift;
castBytes[row+2] = pixel_packets[packet].green >> bit_shift;
castBytes[row+3] = pixel_packets[packet].blue >> bit_shift;
castBytes[row+1] = (int) pixel_packets[packet].red >> bit_shift;
castBytes[row+2] = (int) pixel_packets[packet].green >> bit_shift;
castBytes[row+3] = (int) pixel_packets[packet].blue >> bit_shift;
}
#pragma omp critical (blackmagic_output_queue)

8
src/FFmpegWriter.cpp
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@@ -1231,13 +1231,13 @@ void FFmpegWriter::process_video_packet(tr1::shared_ptr<Frame> frame)
{
// Update buffer (which is already linked to the AVFrame: pFrameRGB)
// Each color needs to be 8 bit (so I'm bit shifting the 16 bit ints)
frame_source->data[0][row] = pixel_packets[packet].red >> bit_shift;
frame_source->data[0][row+1] = pixel_packets[packet].green >> bit_shift;
frame_source->data[0][row+2] = pixel_packets[packet].blue >> bit_shift;
frame_source->data[0][row] = (int) pixel_packets[packet].red >> bit_shift;
frame_source->data[0][row+1] = (int) pixel_packets[packet].green >> bit_shift;
frame_source->data[0][row+2] = (int) pixel_packets[packet].blue >> bit_shift;
// Copy alpha channel (if needed)
if (step == 4)
frame_source->data[0][row+3] = pixel_packets[packet].opacity >> bit_shift;
frame_source->data[0][row+3] = (int) pixel_packets[packet].opacity >> bit_shift;
}
// Resize & convert pixel format

6
src/RendererBase.cpp
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@@ -75,9 +75,9 @@ void RendererBase::paint(const std::tr1::shared_ptr<Frame> & frame)
// Iterate through the pixel packets, and load our own buffer
const Magick::PixelPacket *pixels = frame->GetPixels();
for (int n = 0, i = 0; n < width * height; n += 1, i += 3) {
buffer[i+0] = pixels[n].red >> bit_shift;
buffer[i+1] = pixels[n].green >> bit_shift;
buffer[i+2] = pixels[n].blue >> bit_shift;
buffer[i+0] = (int) pixels[n].red >> bit_shift;
buffer[i+1] = (int) pixels[n].green >> bit_shift;
buffer[i+2] = (int) pixels[n].blue >> bit_shift;
}
#endif