Merge commit '41776ba9c0ebbb71394cefdf7dd1b243e6c852d5'

* commit '41776ba9c0ebbb71394cefdf7dd1b243e6c852d5':
  avconv: do not use the stream codec context for decoding

Conflicts:
	ffmpeg.c
	ffmpeg_filter.c
	ffmpeg_opt.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>

ffmpeg.h

@@ -241,6 +241,7 @@ typedef struct InputStream {
     AVStream *st;
     int discard;             /* true if stream data should be discarded */
     int decoding_needed;     /* true if the packets must be decoded in 'raw_fifo' */
+    AVCodecContext *dec_ctx;
     AVCodec *dec;
     AVFrame *decoded_frame;
     AVFrame *filter_frame; /* a ref of decoded_frame, to be sent to filters */