Playing video from NSInputStream about kxmovie

[lukaszspaczynski]

solution:

const int ioBufferSize = 32768;
unsigned char _ioBuffer = (unsigned char *)av_malloc(ioBufferSize + FF_INPUT_BUFFER_PADDING_SIZE);
formatCtx->pb = avio_alloc_context(ioBuffer, ioBufferSize, 0, (_bridge void)(stream), &readFromNSInputStreamFunction, NULL, NULL);
formatCtx->pb->seekable = 0;
formatCtx->pb->write_flag = 0;

if (avformat_open_input(&formatCtx, [@"fake" cStringUsingEncoding: NSUTF8StringEncoding], NULL, NULL) < 0) {

    if (formatCtx)
        avformat_free_context(formatCtx);
    return kxMovieErrorOpenStream;
}

where stream is NSInputStream object and readFromNSInputStreamFunction is:

static int readFromNSInputStreamFunction(void* opaque, uint8_t* buf, int buf_size) {
__unsafe_unretained NSInputStream *stream = (__bridge NSInputStream *)opaque;

int numBytes = [stream read: (char*)buf maxLength: buf_size];

return numBytes;

}

[amansharma2014]

(__bridge void)(stream) gives error passing void to parameter of incompatible type*