diff options
| -rw-r--r-- | src/lib/ffmpeg/avcodec.pas | 43 |
1 files changed, 38 insertions, 5 deletions
diff --git a/src/lib/ffmpeg/avcodec.pas b/src/lib/ffmpeg/avcodec.pas index 7a0b6deb..ceb1b7f0 100644 --- a/src/lib/ffmpeg/avcodec.pas +++ b/src/lib/ffmpeg/avcodec.pas @@ -65,7 +65,7 @@ uses const (* Max. supported version by this header *) LIBAVCODEC_MAX_VERSION_MAJOR = 52; - LIBAVCODEC_MAX_VERSION_MINOR = 30; + LIBAVCODEC_MAX_VERSION_MINOR = 31; LIBAVCODEC_MAX_VERSION_RELEASE = 2; LIBAVCODEC_MAX_VERSION = (LIBAVCODEC_MAX_VERSION_MAJOR * VERSION_MAJOR) + (LIBAVCODEC_MAX_VERSION_MINOR * VERSION_MINOR) + @@ -3047,7 +3047,7 @@ procedure av_free_packet(pkt: PAVPacket); {$IFEND} (* resample.c *) - +type PReSampleContext = pointer; PAVResampleContext = pointer; PImgReSampleContext = pointer; @@ -3075,10 +3075,31 @@ function av_resample_init (out_rate: cint; in_rate: cint; filter_length: cint; log2_phase_count: cint; linear: cint; cutoff: cdouble): PAVResampleContext; cdecl; external av__codec; +(** + * resamples. + * @param src an array of unconsumed samples + * @param consumed the number of samples of src which have been consumed are returned here + * @param src_size the number of unconsumed samples available + * @param dst_size the amount of space in samples available in dst + * @param update_ctx If this is 0 then the context will not be modified, that way several channels can be resampled with the same context. + * @return the number of samples written in dst or -1 if an error occurred + *) function av_resample (c: PAVResampleContext; dst: PSmallint; src: PSmallint; var consumed: cint; src_size: cint; dst_size: cint; update_ctx: cint): cint; cdecl; external av__codec; +(** + * Compensates samplerate/timestamp drift. The compensation is done by changing + * the resampler parameters, so no audible clicks or similar distortions occur + * @param compensation_distance distance in output samples over which the compensation should be performed + * @param sample_delta number of output samples which should be output less + * + * example: av_resample_compensate(c, 10, 500) + * here instead of 510 samples only 500 samples would be output + * + * note, due to rounding the actual compensation might be slightly different, + * especially if the compensation_distance is large and the in_rate used during init is small + *) procedure av_resample_compensate (c: PAVResampleContext; sample_delta: cint; compensation_distance: cint); cdecl; external av__codec; @@ -3185,6 +3206,17 @@ function avpicture_get_size (pix_fmt: TAVPixelFormat; width: cint; height: cint) procedure avcodec_get_chroma_sub_sample (pix_fmt: TAVPixelFormat; var h_shift: cint; var v_shift: cint); cdecl; external av__codec; +(** + * Returns the pixel format corresponding to the name \p name. + * + * If there is no pixel format with name \p name, then looks for a + * pixel format with the name corresponding to the native endian + * format of \p name. + * For example in a little-endian system, first looks for "gray16", + * then for "gray16le". + * + * Finally if no pixel format has been found, returns \c PIX_FMT_NONE. + *) function avcodec_get_pix_fmt_name(pix_fmt: TAVPixelFormat): PAnsiChar; cdecl; external av__codec; @@ -4346,7 +4378,7 @@ type (** * Register a user provided lock manager supporting the operations - * specified by AVLockOp. mutex points to a (void *) where the + * specified by AVLockOp. mutex points to a (void) where the * lockmgr should store/get a pointer to a user allocated mutex. It's * NULL upon AV_LOCK_CREATE and != NULL for all other ops. * @@ -4357,8 +4389,9 @@ type * Also note that during unregistration the previously registered * lockmgr callback may also be invoked. *) -function av_lockmgr_register(cb: function (mutex: Ppointer; op: TAVLockOp)): cint; - cdecl; external av__codec; +// ToDo: Implement and test this +//function av_lockmgr_register(cb: function (mutex: pointer; op: TAVLockOp)): cint; +// cdecl; external av__codec; {$IFEND} implementation |