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mirror of https://github.com/FFmpeg/FFmpeg.git synced 2024-12-02 03:06:28 +02:00
FFmpeg/libavfilter/video.h
Michael Niedermayer c7b9eab2be Merge remote-tracking branch 'qatar/master'
* qatar/master:
  rtmp: Add a new option 'rtmp_buffer', for setting the client buffer time
  rtmp: Set the client buffer time to 3s instead of 0.26s
  rtmp: Handle server bandwidth packets
  rtmp: Display a verbose message when an unknown packet type is received
  lavfi/audio: use av_samples_copy() instead of custom code.
  configure: add all filters hardcoded into avconv to avconv_deps
  avfiltergraph: remove a redundant call to avfilter_get_by_name().
  lavfi: allow building without swscale.
  build: Do not delete tests/vsynth2 directory, which is no longer created.
  lavfi: replace AVFilterContext.input/output_count with nb_inputs/outputs
  lavfi: make AVFilterPad opaque after two major bumps.
  lavfi: add avfilter_pad_get_type() and avfilter_pad_get_name().
  lavfi: make avfilter_get_video_buffer() private on next bump.
  jack: update to new latency range API as the old one has been deprecated
  rtmp: Tokenize the AMF connection parameters manually instead of using strtok_r
  ppc: Rename H.264 optimization template file for consistency.
  lavfi: add channelsplit audio filter.
  golomb: check remaining bits during unary decoding in get_ur_golomb_jpegls()
  sws: fix planar RGB input conversions for 9/10/16 bpp.

Conflicts:
	Changelog
	configure
	doc/APIchanges
	ffmpeg.c
	libavcodec/golomb.h
	libavcodec/v210dec.h
	libavfilter/Makefile
	libavfilter/allfilters.c
	libavfilter/asrc_anullsrc.c
	libavfilter/audio.c
	libavfilter/avfilter.c
	libavfilter/avfilter.h
	libavfilter/avfiltergraph.c
	libavfilter/buffersrc.c
	libavfilter/formats.c
	libavfilter/version.h
	libavfilter/vf_frei0r.c
	libavfilter/vf_pad.c
	libavfilter/vf_scale.c
	libavfilter/video.h
	libavfilter/vsrc_color.c
	libavformat/rtmpproto.c
	libswscale/input.c
	tests/Makefile

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-06-13 22:43:57 +02:00

90 lines
3.4 KiB
C

/*
* Copyright (c) 2007 Bobby Bingham
*
* 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
*/
#ifndef AVFILTER_VIDEO_H
#define AVFILTER_VIDEO_H
#include "avfilter.h"
AVFilterBufferRef *ff_default_get_video_buffer(AVFilterLink *link,
int perms, int w, int h);
AVFilterBufferRef *ff_null_get_video_buffer(AVFilterLink *link, int perms, int w, int h);
/**
* Request a picture buffer with a specific set of permissions.
*
* @param link the output link to the filter from which the buffer will
* be requested
* @param perms the required access permissions
* @param w the minimum width of the buffer to allocate
* @param h the minimum height of the buffer to allocate
* @return A reference to the buffer. This must be unreferenced with
* avfilter_unref_buffer when you are finished with it.
*/
AVFilterBufferRef *ff_get_video_buffer(AVFilterLink *link, int perms,
int w, int h);
void ff_null_start_frame(AVFilterLink *link, AVFilterBufferRef *picref);
void ff_null_draw_slice(AVFilterLink *link, int y, int h, int slice_dir);
void ff_null_end_frame(AVFilterLink *link);
/**
* Notify the next filter of the start of a frame.
*
* @param link the output link the frame will be sent over
* @param picref A reference to the frame about to be sent. The data for this
* frame need only be valid once draw_slice() is called for that
* portion. The receiving filter will free this reference when
* it no longer needs it.
*/
void ff_start_frame(AVFilterLink *link, AVFilterBufferRef *picref);
/**
* Pass video frame along and keep an internal reference for later use.
*/
void ff_null_start_frame_keep_ref(AVFilterLink *inlink, AVFilterBufferRef *picref);
/**
* Notify the next filter that the current frame has finished.
*
* @param link the output link the frame was sent over
*/
void ff_end_frame(AVFilterLink *link);
/**
* Send a slice to the next filter.
*
* Slices have to be provided in sequential order, either in
* top-bottom or bottom-top order. If slices are provided in
* non-sequential order the behavior of the function is undefined.
*
* @param link the output link over which the frame is being sent
* @param y offset in pixels from the top of the image for this slice
* @param h height of this slice in pixels
* @param slice_dir the assumed direction for sending slices,
* from the top slice to the bottom slice if the value is 1,
* from the bottom slice to the top slice if the value is -1,
* for other values the behavior of the function is undefined.
*/
void ff_draw_slice(AVFilterLink *link, int y, int h, int slice_dir);
#endif /* AVFILTER_VIDEO_H */