diff options
Diffstat (limited to 'libavfilter/vidstabutils.c')
-rw-r--r-- | libavfilter/vidstabutils.c | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/libavfilter/vidstabutils.c b/libavfilter/vidstabutils.c new file mode 100644 index 0000000..13544cf --- /dev/null +++ b/libavfilter/vidstabutils.c @@ -0,0 +1,85 @@ +/* + * Copyright (c) 2013 Georg Martius <georg dot martius at web dot de> + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include "vidstabutils.h" + +/** convert AV's pixelformat to vid.stab pixelformat */ +VSPixelFormat ff_av2vs_pixfmt(AVFilterContext *ctx, enum AVPixelFormat pf) +{ + switch (pf) { + case AV_PIX_FMT_YUV420P: return PF_YUV420P; + case AV_PIX_FMT_YUV422P: return PF_YUV422P; + case AV_PIX_FMT_YUV444P: return PF_YUV444P; + case AV_PIX_FMT_YUV410P: return PF_YUV410P; + case AV_PIX_FMT_YUV411P: return PF_YUV411P; + case AV_PIX_FMT_YUV440P: return PF_YUV440P; + case AV_PIX_FMT_YUVA420P: return PF_YUVA420P; + case AV_PIX_FMT_GRAY8: return PF_GRAY8; + case AV_PIX_FMT_RGB24: return PF_RGB24; + case AV_PIX_FMT_BGR24: return PF_BGR24; + case AV_PIX_FMT_RGBA: return PF_RGBA; + default: + av_log(ctx, AV_LOG_ERROR, "cannot deal with pixel format %i\n", pf); + return PF_NONE; + } +} + +/** struct to hold a valid context for logging from within vid.stab lib */ +typedef struct { + const AVClass *class; +} VS2AVLogCtx; + +/** wrapper to log vs_log into av_log */ +static int vs2av_log(int type, const char *tag, const char *format, ...) +{ + va_list ap; + VS2AVLogCtx ctx; + AVClass class = { + .class_name = tag, + .item_name = av_default_item_name, + .option = 0, + .version = LIBAVUTIL_VERSION_INT, + .category = AV_CLASS_CATEGORY_FILTER, + }; + ctx.class = &class; + va_start(ap, format); + av_vlog(&ctx, type, format, ap); + va_end(ap); + return VS_OK; +} + +/** sets the memory allocation function and logging constants to av versions */ +void ff_vs_init(void) +{ + vs_malloc = av_malloc; + vs_zalloc = av_mallocz; + vs_realloc = av_realloc; + vs_free = av_free; + + VS_ERROR_TYPE = AV_LOG_ERROR; + VS_WARN_TYPE = AV_LOG_WARNING; + VS_INFO_TYPE = AV_LOG_INFO; + VS_MSG_TYPE = AV_LOG_VERBOSE; + + vs_log = vs2av_log; + + VS_ERROR = 0; + VS_OK = 1; +} |