try :
FILE * fp = fopen("79.wma", "rb");
On Mon, Jul 20, 2009 at 2:16 AM, jacob jacob<[email protected]> wrote:
> /*
>
> i have a problem related to av_open_input_stream usage.
> it returns -1 and when i trace it in detail, read_header in asf.c returns -1
> when comparing headers (GUID information).
>
> it seems like my ByteIOContext is empty..
>
> i don't know why..
>
> */
>
> int read_data(void *opaque, uint8_t *buf, int buf_size){
>
> printf("it is here. buf_size. %d",buf_size);
>
>
> FILE * fp = (FILE *) opaque;
> if (!fp)
> {
> return -1;
> }
>
> int cnt = fread(buf, sizeof(uint8_t), buf_size, fp);
>
> return cnt;
>
> }
>
> void doit(){
>
> FILE * fp = fopen("79.wma", "r");
>
>
>
>
>
> avcodec_init();
> avcodec_register_all();
> av_register_all();
>
>
>
>
>
>
> uint8_t pDataBuffer[2048];
> long lSize = 2048;
>
> read_data(fp, pDataBuffer, lSize);
>
>
> AVProbeData pd;
> pd.buf = pDataBuffer;
> pd.buf_size = lSize;
> pd.filename = "";
>
> AVInputFormat* pAVInputFormat = av_probe_input_format(&pd, 1);
> if(!pAVInputFormat)
> {
> printf("something 0");
> return;
> }
> pAVInputFormat->flags |= AVFMT_NOFILE;
>
> ByteIOContext ByteIOCtx;
> if(init_put_byte(&ByteIOCtx, pDataBuffer, lSize, 0, fp, read_data,
> NULL, NULL) < 0)
> {
> printf("something 1");
> return ;
> }
>
> AVFormatContext* pFormatCtx;
>
>
> if(av_open_input_stream(&pFormatCtx, &ByteIOCtx, "", pAVInputFormat,
> NULL) < 0)
> {
> printf("something 2");
> return ;
> }
>
> if(av_find_stream_info(pFormatCtx) < 0)
> {
> printf("something 3");
> return ;
> }
>
> printf("something 4");
>
> }
> _______________________________________________
> libav-user mailing list
> [email protected]
> https://lists.mplayerhq.hu/mailman/listinfo/libav-user
>
--
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