about the function x264_nal_encode

[hao jiang]

i checked the x264 daily tarball. i found that the function "x264_nal_encode" has changed since 20100705.

before this day ,the function "x264_nal_encode" is defined as

<

/****************************************************************************
 * x264_nal_encode:
 ****************************************************************************/
int x264_nal_encode( x264_t *h, uint8_t *dst, x264_nal_t *nal, int b_long_startcode )
{
    uint8_t *src = nal->p_payload;
    uint8_t *end = nal->p_payload + nal->i_payload;
    uint8_t *orig_dst = dst;

    if( h->param.b_annexb )
    {
        if( b_long_startcode )
            *dst++ = 0x00;
        *dst++ = 0x00;
        *dst++ = 0x00;
        *dst++ = 0x01;
    }
    else /* save room for size later */
        dst += 4;

    /* nal header */
    *dst++ = ( 0x00 << 7 ) | ( nal->i_ref_idc << 5 ) | nal->i_type;

    dst = h->bsf.nal_escape( dst, src, end );
    int size = (dst - orig_dst) - 4;

    /* Write the size header for mp4/etc */
    if( !h->param.b_annexb )
    {
        /* Size doesn't include the size of the header we're writing now. */
        orig_dst[0] = size>>24;
        orig_dst[1] = size>>16;
        orig_dst[2] = size>> 8;
        orig_dst[3] = size>> 0;
    }

    return size+4;
}

>

in the 20100705 daily tarball,the function  "x264_nal_encode" was defined as

<

/****************************************************************************
 * x264_nal_encode:
 ****************************************************************************/
void x264_nal_encode( x264_t *h, uint8_t *dst, x264_nal_t *nal )
{
    uint8_t *src = nal->p_payload;
    uint8_t *end = nal->p_payload + nal->i_payload;
    uint8_t *orig_dst = dst;

    if( h->param.b_annexb )
    {
        if( nal->b_long_startcode )
            *dst++ = 0x00;
        *dst++ = 0x00;
        *dst++ = 0x00;
        *dst++ = 0x01;
    }
    else /* save room for size later */
        dst += 4;

    /* nal header */
    *dst++ = ( 0x00 << 7 ) | ( nal->i_ref_idc << 5 ) | nal->i_type;

    dst = h->bsf.nal_escape( dst, src, end );
    int size = (dst - orig_dst) - 4;

    /* Write the size header for mp4/etc */
    if( !h->param.b_annexb )
    {
        /* Size doesn't include the size of the header we're writing now. */
        orig_dst[0] = size>>24;
        orig_dst[1] = size>>16;
        orig_dst[2] = size>> 8;
        orig_dst[3] = size>> 0;
    }

    nal->i_payload = size+4;
    nal->p_payload = orig_dst;
}

>
in the plugin-ugly ,the plugin x264enc use the function as

<

 nal_size = x264_nal_encode (buffer + i_size + 2, &i_data, 0, &nal[sps_ni]);

>

 

is that mean i can't use the latest version of x264 when i use the lastest version of gstx264enc?
--

Kang Ho

_______________________________________________
gstreamer-devel mailing list
[hidden email]
http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel