diff options
Diffstat (limited to 'thirdparties/win32/include/libavfilter/buffersrc.h')
-rw-r--r-- | thirdparties/win32/include/libavfilter/buffersrc.h | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/thirdparties/win32/include/libavfilter/buffersrc.h b/thirdparties/win32/include/libavfilter/buffersrc.h new file mode 100644 index 0000000..7f3c8d8 --- /dev/null +++ b/thirdparties/win32/include/libavfilter/buffersrc.h @@ -0,0 +1,95 @@ +/* + * + * This file is part of Libav. + * + * Libav 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. + * + * Libav 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 Libav; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef AVFILTER_BUFFERSRC_H +#define AVFILTER_BUFFERSRC_H + +/** + * @file + * Memory buffer source API. + */ + +#include "libavcodec/avcodec.h" +#include "avfilter.h" + +enum { + + /** + * Do not check for format changes. + */ + AV_BUFFERSRC_FLAG_NO_CHECK_FORMAT = 1, + + /** + * Do not copy buffer data. + */ + AV_BUFFERSRC_FLAG_NO_COPY = 2, + + /** + * Immediately push the frame to the output. + */ + AV_BUFFERSRC_FLAG_PUSH = 4, + +}; + +/** + * Add buffer data in picref to buffer_src. + * + * @param buffer_src pointer to a buffer source context + * @param picref a buffer reference, or NULL to mark EOF + * @param flags a combination of AV_BUFFERSRC_FLAG_* + * @return >= 0 in case of success, a negative AVERROR code + * in case of failure + */ +int av_buffersrc_add_ref(AVFilterContext *buffer_src, + AVFilterBufferRef *picref, int flags); + +/** + * Get the number of failed requests. + * + * A failed request is when the request_frame method is called while no + * frame is present in the buffer. + * The number is reset when a frame is added. + */ +unsigned av_buffersrc_get_nb_failed_requests(AVFilterContext *buffer_src); + +#ifdef FF_API_BUFFERSRC_BUFFER +/** + * Add a buffer to the filtergraph s. + * + * @param buf buffer containing frame data to be passed down the filtergraph. + * This function will take ownership of buf, the user must not free it. + * A NULL buf signals EOF -- i.e. no more frames will be sent to this filter. + * @deprecated Use av_buffersrc_add_ref(s, picref, AV_BUFFERSRC_FLAG_NO_COPY) instead. + */ +attribute_deprecated +int av_buffersrc_buffer(AVFilterContext *s, AVFilterBufferRef *buf); +#endif + +/** + * Add a frame to the buffer source. + * + * @param s an instance of the buffersrc filter. + * @param frame frame to be added. + * + * @warning frame data will be memcpy()ed, which may be a big performance + * hit. Use av_buffersrc_buffer() to avoid copying the data. + */ +int av_buffersrc_write_frame(AVFilterContext *s, const AVFrame *frame); + +#endif /* AVFILTER_BUFFERSRC_H */ |