diff options
Diffstat (limited to 'libavcodec/avcodec.h')
| -rw-r--r-- | libavcodec/avcodec.h | 20 |
1 files changed, 16 insertions, 4 deletions
diff --git a/libavcodec/avcodec.h b/libavcodec/avcodec.h index 9a24da7b2a..c2b9096d87 100644 --- a/libavcodec/avcodec.h +++ b/libavcodec/avcodec.h @@ -210,8 +210,10 @@ enum CodecID { CODEC_ID_DFA, CODEC_ID_WMV3IMAGE, CODEC_ID_VC1IMAGE, +#if LIBAVCODEC_VERSION_MAJOR == 53 CODEC_ID_8SVX_RAW, CODEC_ID_G2M, +#endif CODEC_ID_UTVIDEO_DEPRECATED, CODEC_ID_UTVIDEO = 0x800, @@ -676,8 +678,10 @@ typedef struct RcOverride{ /* Codec can export data for HW decoding (XvMC). */ #define CODEC_CAP_HWACCEL 0x0010 /** - * Codec has a nonzero delay and needs to be fed with NULL at the end to get the delayed data. - * If this is not set, the codec is guaranteed to never be fed with NULL data. + * Codec has a nonzero delay and needs to be fed with avpkt->data=NULL, + * avpkt->size=0 at the end to get the delayed data until the decoder no longer + * returns frames. If this is not set, the codec is guaranteed to never be fed + * with NULL data. */ #define CODEC_CAP_DELAY 0x0020 /** @@ -3608,6 +3612,7 @@ enum PixelFormat avcodec_find_best_pix_fmt(int64_t pix_fmt_mask, enum PixelForma enum PixelFormat avcodec_find_best_pix_fmt2(enum PixelFormat dst_pix_fmt1, enum PixelFormat dst_pix_fmt2, enum PixelFormat src_pix_fmt, int has_alpha, int *loss_ptr); +#if FF_API_GET_ALPHA_INFO #define FF_ALPHA_TRANSP 0x0001 /* image has some totally transparent pixels */ #define FF_ALPHA_SEMI_TRANSP 0x0002 /* image has some transparent pixels */ @@ -3615,8 +3620,10 @@ enum PixelFormat avcodec_find_best_pix_fmt2(enum PixelFormat dst_pix_fmt1, enum * Tell if an image really has transparent alpha values. * @return ored mask of FF_ALPHA_xxx constants */ +attribute_deprecated int img_get_alpha_info(const AVPicture *src, enum PixelFormat pix_fmt, int width, int height); +#endif /* deinterlace a picture */ /* deinterlace - if not supported return -1 */ @@ -3940,6 +3947,10 @@ int avcodec_open2(AVCodecContext *avctx, AVCodec *codec, AVDictionary **options) * samples should be 16 byte aligned unless the CPU doesn't need it * (AltiVec and SSE do). * + * @note Codecs which have the CODEC_CAP_DELAY capability set have a delay + * between input and output, these need to be fed with avpkt->data=NULL, + * avpkt->size=0 at the end to return the remaining frames. + * * @param avctx the codec context * @param[out] samples the output buffer, sample type in avctx->sample_fmt * @param[in,out] frame_size_ptr the output buffer size in bytes @@ -3973,8 +3984,9 @@ int avcodec_decode_audio3(AVCodecContext *avctx, int16_t *samples, * * In practice, avpkt->data should have 4 byte alignment at minimum. * - * @note Some codecs have a delay 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 Codecs which have the CODEC_CAP_DELAY capability set have a delay + * between input and output, these need to be fed with avpkt->data=NULL, + * avpkt->size=0 at the end to return the remaining frames. * * @param avctx the codec context * @param[out] picture The AVFrame in which the decoded video frame will be stored. |