forked from bartvdbraak/blender
d47e1fee32
This fixes the underlying problem of the DV crashings - within blender code. Problem was, that we tried to seek on decode errors. (Unintentionally, curposition wasn't advanced in that case). That triggered a bug within ffmpeg, that made blender crash. My workaround fix for 2.49 actually only prevented the crash, but didn't stop ffmpeg from only decoding black frames after that point... (The patch also cleans up the color conversion a little bit, by using PIX_FMT_RGBA (still need to find a way to make it work with video files that actually *have* an alpha channel. At least, latest FFMPEG-SVN swscaler has the ability to use alpha.) Looks like we can remove extern/ffmpeg now... |
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.. | ||
intern | ||
CMakeLists.txt | ||
IMB_imbuf_types.h | ||
IMB_imbuf.h | ||
IMB_thumbs.h | ||
Makefile | ||
readme.txt | ||
SConscript |
The following 4 steps to adding a new image format to blender, its probably easiest to look at the png code for a clean clear example, animation formats are a bit more complicated but very similar: Step 1: create a new file named after the format for example lets say we were creating an openexr read/writer use openexr.c It should contain functions to match the following prototypes: struct ImBuf *imb_loadopenexr(unsigned char *mem,int size,int flags); /* Use one of the following depending on whats easyer for your file format */ short imb_saveopenexr(struct ImBuf *ibuf, FILE myfile, int flags); short imb_saveopenexr(struct ImBuf *ibuf, char *myfile, int flags); /* Used to test if its the correct format int IMB_is_openexr(void *buf); Step 2: Add your hooks to read and write the image format these go in writeimage.c and readimage.c just look at how the others are done Step 3: Add in IS_openexr to blender/source/blender/imbuf/IMB_imbuf_types.h Add in R_openexr to source/blender/makesdna/DNA_scene_types.h Step 4: Add your hooks to the gui. source/blender/src/buttons_scene.c source/blender/src/toets.c source/blender/src/writeimage.c Step 5: edit the following files: blender/source/blender/imbuf/intern/util.c blender/source/blender/src/filesel.c blender/source/blender/src/screendump.c and add your extension so that your format gets recognized in the thumbnails. Step 6: Alter the build process: For scons you need to edit blender/source/blender/imbuf/SConscript and add in your additional files to source_files. For msvp you need to edit blender/projectfiles/blender/imbuf/BL_imbuf.dsp and add in your additional files. If you have any external library info you will also need to add that to the various build processes. Step 7: Its also good to add your image format to: makepicstring in blender/source/blender/blenkernel/intern/image.c