Got the solution to my problem quite a while back. Posting it now as I
have time. Hope it helps someone else. Like Carl said, it'd be best for
a person to build the ffmpeg libraries by themselves.
I was using the 32bit dev builds from Zeranoe, and linking to the .lib
files caused the compiler to ask for the corresponding DLL files too,
but DLL's aren't part of the dev builds, so I had to take the DLL's of
the shared build.
Using it this way, my ffmpeg code worked, but used to strangely crash at
sws_scale.
But using purely the shared build's DLL's everything worked fine. Some
example code for the RGB values:
//This example is from the updated tutorial 01:
https://github.com/mpenkov/ffmpeg-tutorial
#include <Windows.h>
#include <libavformat/avformat.h>
#include <libavcodec/avcodec.h>//just as an example
int main()
{
const char * avfDLLpointer =
"F:\\Nav\\VisualStudio\\ffmpegTestProgram\\ffmpegTestProgram\\avformat-54.dll";//you
can place this DLL in the same directory as your exe
const char * avcDLLpointer =
"F:\\Nav\\VisualStudio\\ffmpegTestProgram\\ffmpegTestProgram\\avcodec-54.dll";.//just
as an example
HINSTANCE hinstLib_avformat = LoadLibrary(avfDLLpointer);
HINSTANCE hinstLib_avcodec = LoadLibrary(avcDLLpointer);//just as
an example
__av_dump_format av_dump_format_proc =
(__av_dump_format) GetProcAddress(hinstLib_avformat,
"av_dump_format");
...blah blah...
sws_ctx = sws_getContext_proc(pCodecCtx->width, pCodecCtx->height,
pCodecCtx->pix_fmt, pCodecCtx->width, pCodecCtx->height, PIX_FMT_RGB24,
SWS_BILINEAR, NULL, NULL, NULL );
avpicture_fill_proc((AVPicture *)pFrameRGB, buffer, PIX_FMT_RGB24,
pCodecCtx->width, pCodecCtx->height);
...blah blah...
sws_scale_proc(sws_ctx, (uint8_t const * const *)pFrame->data,
pFrame->linesize, 0, pCodecCtx->height, pFrameRGB->data,
pFrameRGB->linesize );
for(int yy = 0; yy < pCodecCtx->height; ++yy)
{
for(int xx = 0; xx < pCodecCtx->width; ++xx)
{
int p = xx * 3 + yy * pFrameRGB->linesize[0];
int r = pFrameRGB->data[0][p];
int g = pFrameRGB->data[0][p+1];
int b = pFrameRGB->data[0][p+2];
}
}
...blah blah...
}
Navin
On 11/22/2012 4:32 AM, Carl Eugen Hoyos wrote:
Malik Cissé<mc@...> writes:
Carl Eugen ... writes:
...compile FFmpeg with msvc.
This sounds interesting. Where can I find msvc sample project?
Please see the MSVC section on the platform page
of the fine documentation to find information on
how to compile FFmpeg with MSVC.
Carl Eugen
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