*/
enum AVPixelFormat sw_pix_fmt;
+ /**
+ * Timebase in which pkt_dts/pts and AVPacket.dts/pts are.
+ * Code outside libavcodec should access this field using:
+ * av_codec_{get,set}_pkt_timebase(avctx)
+ * - encoding unused.
+ * - decoding set by user.
+ */
+ AVRational pkt_timebase;
+
+ /**
+ * AVCodecDescriptor
+ * Code outside libavcodec should access this field using:
+ * av_codec_{get,set}_codec_descriptor(avctx)
+ * - encoding: unused.
+ * - decoding: set by libavcodec.
+ */
+ const AVCodecDescriptor *codec_descriptor;
+
+#if !FF_API_LOWRES
+ /**
+ * low resolution decoding, 1-> 1/2 size, 2->1/4 size
+ * - encoding: unused
+ * - decoding: Set by user.
+ * Code outside libavcodec should access this field using:
+ * av_codec_{get,set}_lowres(avctx)
+ */
+ int lowres;
+#endif
+
+ /**
+ * Current statistics for PTS correction.
+ * - decoding: maintained and used by libavcodec, not intended to be used by user apps
+ * - encoding: unused
+ */
+ int64_t pts_correction_num_faulty_pts; /// Number of incorrect PTS values so far
+ int64_t pts_correction_num_faulty_dts; /// Number of incorrect DTS values so far
+ int64_t pts_correction_last_pts; /// PTS of the last frame
+ int64_t pts_correction_last_dts; /// DTS of the last frame
+
+ /**
+ * Character encoding of the input subtitles file.
+ * - decoding: set by user
+ * - encoding: unused
+ */
+ char *sub_charenc;
+
+ /**
+ * Subtitles character encoding mode. Formats or codecs might be adjusting
+ * this setting (if they are doing the conversion themselves for instance).
+ * - decoding: set by libavcodec
+ * - encoding: unused
+ */
+ int sub_charenc_mode;
+#define FF_SUB_CHARENC_MODE_DO_NOTHING -1 ///< do nothing (demuxer outputs a stream supposed to be already in UTF-8, or the codec is bitmap for instance)
+#define FF_SUB_CHARENC_MODE_AUTOMATIC 0 ///< libavcodec will select the mode itself
+#define FF_SUB_CHARENC_MODE_PRE_DECODER 1 ///< the AVPacket data needs to be recoded to UTF-8 before being fed to the decoder, requires iconv
+
+ /**
+ * Skip processing alpha if supported by codec.
+ * Note that if the format uses pre-multiplied alpha (common with VP6,
+ * and recommended due to better video quality/compression)
+ * the image will look as if alpha-blended onto a black background.
+ * However for formats that do not use pre-multiplied alpha
+ * there might be serious artefacts (though e.g. libswscale currently
+ * assumes pre-multiplied alpha anyway).
+ * Code outside libavcodec should access this field using AVOptions
+ *
+ * - decoding: set by user
+ * - encoding: unused
+ */
+ int skip_alpha;
+
+ /**
+ * Number of samples to skip after a discontinuity
+ * - decoding: unused
+ * - encoding: set by libavcodec
+ */
+ int seek_preroll;
+
+#if !FF_API_DEBUG_MV
+ /**
+ * debug motion vectors
+ * Code outside libavcodec should access this field using AVOptions
+ * - encoding: Set by user.
+ * - decoding: Set by user.
+ */
+ int debug_mv;
+#define FF_DEBUG_VIS_MV_P_FOR 0x00000001 //visualize forward predicted MVs of P frames
+#define FF_DEBUG_VIS_MV_B_FOR 0x00000002 //visualize forward predicted MVs of B frames
+#define FF_DEBUG_VIS_MV_B_BACK 0x00000004 //visualize backward predicted MVs of B frames
+#endif
+
+ /**
+ * custom intra quantization matrix
+ * Code outside libavcodec should access this field using av_codec_g/set_chroma_intra_matrix()
+ * - encoding: Set by user, can be NULL.
+ * - decoding: unused.
+ */
+ uint16_t *chroma_intra_matrix;
+
+ /**
+ * dump format separator.
+ * can be ", " or "\n " or anything else
+ * Code outside libavcodec should access this field using AVOptions
+ * (NO direct access).
+ * - encoding: Set by user.
+ * - decoding: Set by user.
+ */
+ uint8_t *dump_separator;
+
+ /**
+ * ',' separated list of allowed decoders.
+ * If NULL then all are allowed
+ * - encoding: unused
+ * - decoding: set by user through AVOPtions (NO direct access)
+ */
+ char *codec_whitelist;
+
+ /*
+ * Properties of the stream that gets decoded
+ * To be accessed through av_codec_get_properties() (NO direct access)
+ * - encoding: unused
+ * - decoding: set by libavcodec
+ */
+ unsigned properties;
+#define FF_CODEC_PROPERTY_LOSSLESS 0x00000001
+#define FF_CODEC_PROPERTY_CLOSED_CAPTIONS 0x00000002
++
+ /**
+ * Additional data associated with the entire coded stream.
+ *
+ * - decoding: unused
+ * - encoding: may be set by libavcodec after avcodec_open2().
+ */
+ AVPacketSideData *coded_side_data;
+ int nb_coded_side_data;
+
} AVCodecContext;
+AVRational av_codec_get_pkt_timebase (const AVCodecContext *avctx);
+void av_codec_set_pkt_timebase (AVCodecContext *avctx, AVRational val);
+
+const AVCodecDescriptor *av_codec_get_codec_descriptor(const AVCodecContext *avctx);
+void av_codec_set_codec_descriptor(AVCodecContext *avctx, const AVCodecDescriptor *desc);
+
+unsigned av_codec_get_codec_properties(const AVCodecContext *avctx);
+
+int av_codec_get_lowres(const AVCodecContext *avctx);
+void av_codec_set_lowres(AVCodecContext *avctx, int val);
+
+int av_codec_get_seek_preroll(const AVCodecContext *avctx);
+void av_codec_set_seek_preroll(AVCodecContext *avctx, int val);
+
+uint16_t *av_codec_get_chroma_intra_matrix(const AVCodecContext *avctx);
+void av_codec_set_chroma_intra_matrix(AVCodecContext *avctx, uint16_t *val);
+
/**
* AVProfile.
*/
projects / ffmpeg / commitdiff