On Thu, Dec 4, 2014 at 8:56 PM, Vittorio Giovara <[email protected]> wrote: > --- > libavcodec/avcodec.h | 12 ++++++++++++ > 1 file changed, 12 insertions(+) > > diff --git a/libavcodec/avcodec.h b/libavcodec/avcodec.h > index b3c6419..d5feb35 100644 > --- a/libavcodec/avcodec.h > +++ b/libavcodec/avcodec.h > @@ -3266,6 +3266,9 @@ void avcodec_free_frame(AVFrame **frame); > * > * @warning This function is not thread safe! > * > + * @note Always call this function before using decoding routines (such as > + * @ref avcodec_decode_video2()). > + * > * @code > * avcodec_register_all(); > * av_dict_set(&opts, "b", "2.5M", 0); > @@ -3595,6 +3598,9 @@ void avcodec_align_dimensions2(AVCodecContext *s, int > *width, int *height, > * larger than the actual read bytes because some optimized > bitstream > * readers read 32 or 64 bits at once and could read over the end. > * > + * @note The AVCodec MUST have been opened with @ref avcodec_open2() before > + * packets may be fed to the decoder. > + * > * @param avctx the codec context > * @param[out] frame The AVFrame in which to store decoded audio samples. > * The decoder will allocate a buffer for the decoded > frame by > @@ -3639,6 +3645,9 @@ int avcodec_decode_audio4(AVCodecContext *avctx, > AVFrame *frame, > * between input and output, these need to be fed with avpkt->data=NULL, > * avpkt->size=0 at the end to return the remaining frames. > * > + * @note The AVCodec MUST have been opened with @ref avcodec_open2() before > + * packets may be fed to the decoder. > + * > * @param avctx the codec context > * @param[out] picture The AVFrame in which the decoded video frame will be > stored. > * Use av_frame_alloc() to get an AVFrame. The codec will > @@ -3677,6 +3686,9 @@ int avcodec_decode_video2(AVCodecContext *avctx, > AVFrame *picture, > * and reusing a get_buffer written for video codecs would probably perform > badly > * due to a potentially very different allocation pattern. > * > + * @note The AVCodec MUST have been opened with @ref avcodec_open2() before > + * packets may be fed to the decoder. > + * > * @param avctx the codec context > * @param[out] sub The AVSubtitle in which the decoded subtitle will be > stored, must be > freed with avsubtitle_free if *got_sub_ptr is set. > -- > 1.9.3 (Apple Git-50) >
ping -- Vittorio _______________________________________________ libav-devel mailing list [email protected] https://lists.libav.org/mailman/listinfo/libav-devel
