16l trocadero: Musepack SV7 decoder may skip more than 16 bits at the

beginning of the frame, so make it use skip_bits_long() instead of
skip_bits() for that.

Originally committed as revision 25754 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavcodec/mpc7.c

@@ -206,7 +206,7 @@ static int mpc7_decode_frame(AVCodecContext * avctx,
     bits = av_malloc(((buf_size - 1) & ~3) + FF_INPUT_BUFFER_PADDING_SIZE);
     c->dsp.bswap_buf((uint32_t*)bits, (const uint32_t*)(buf + 4), (buf_size - 4) >> 2);
     init_get_bits(&gb, bits, (buf_size - 4)* 8);
-    skip_bits(&gb, buf[0]);
+    skip_bits_long(&gb, buf[0]);
 
     /* read subband indexes */
     for(i = 0; i <= c->maxbands; i++){