diff options
Diffstat (limited to 'gst-libs/ext/libav/libavcodec/avcodec.h')
| -rw-r--r-- | gst-libs/ext/libav/libavcodec/avcodec.h | 23 |
1 files changed, 22 insertions, 1 deletions
diff --git a/gst-libs/ext/libav/libavcodec/avcodec.h b/gst-libs/ext/libav/libavcodec/avcodec.h index be1b202..2451294 100644 --- a/gst-libs/ext/libav/libavcodec/avcodec.h +++ b/gst-libs/ext/libav/libavcodec/avcodec.h @@ -3912,7 +3912,8 @@ AVCodecContext *avcodec_alloc_context2(enum AVMediaType); /** * Allocate an AVCodecContext and set its fields to default values. The - * resulting struct can be deallocated by simply calling av_free(). + * resulting struct can be deallocated by calling avcodec_close() on it followed + * by av_free(). * * @param codec if non-NULL, allocate private data and initialize defaults * for the given codec. It is illegal to then call avcodec_open2() @@ -4058,6 +4059,11 @@ int avcodec_open(AVCodecContext *avctx, AVCodec *codec); * @endcode * * @param avctx The context to initialize. + * @param codec The codec to open this context for. If a non-NULL codec has been + * previously passed to avcodec_alloc_context3() or + * avcodec_get_context_defaults3() for this context, then this + * parameter MUST be either NULL or equal to the previously passed + * codec. * @param options A dictionary filled with AVCodecContext and codec-private options. * On return this object will be filled with options that were not found. * @@ -4343,6 +4349,15 @@ int avcodec_encode_video(AVCodecContext *avctx, uint8_t *buf, int buf_size, int avcodec_encode_subtitle(AVCodecContext *avctx, uint8_t *buf, int buf_size, const AVSubtitle *sub); +/** + * Close a given AVCodecContext and free all the data associated with it + * (but not the AVCodecContext itself). + * + * Calling this function on an AVCodecContext that hasn't been opened will free + * the codec-specific data allocated in avcodec_alloc_context3() / + * avcodec_get_context_defaults3() with a non-NULL codec. Subsequent calls will + * do nothing. + */ int avcodec_close(AVCodecContext *avctx); /** @@ -4737,4 +4752,10 @@ enum AVMediaType avcodec_get_type(enum CodecID codec_id); */ const AVClass *avcodec_get_class(void); +/** + * @return a positive value if s is open (i.e. avcodec_open2() was called on it + * with no corresponding avcodec_close()), 0 otherwise. + */ +int avcodec_is_open(AVCodecContext *s); + #endif /* AVCODEC_AVCODEC_H */ |