133 lines
3.6 KiB
C
133 lines
3.6 KiB
C
/******************************************************************************
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Copyright (C) 2013 by Hugh Bailey <obs.jim@gmail.com>
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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******************************************************************************/
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#pragma once
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#include "media-io-defs.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* Base video output component. Use this to create a video output track. */
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struct video_output;
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typedef struct video_output *video_t;
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enum video_format {
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VIDEO_FORMAT_NONE,
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/* planar 420 format */
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VIDEO_FORMAT_I420, /* three-plane */
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VIDEO_FORMAT_NV12, /* two-plane, luma and packed chroma */
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/* packed 422 formats */
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VIDEO_FORMAT_YVYU,
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VIDEO_FORMAT_YUY2, /* YUYV */
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VIDEO_FORMAT_UYVY,
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/* packed uncompressed formats */
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VIDEO_FORMAT_RGBA,
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VIDEO_FORMAT_BGRA,
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VIDEO_FORMAT_BGRX,
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};
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struct video_data {
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const uint8_t *data[MAX_AV_PLANES];
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uint32_t linesize[MAX_AV_PLANES];
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uint64_t timestamp;
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};
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struct video_output_info {
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const char *name;
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enum video_format format;
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uint32_t fps_num;
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uint32_t fps_den;
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uint32_t width;
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uint32_t height;
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};
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static inline bool format_is_yuv(enum video_format format)
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{
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switch (format) {
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case VIDEO_FORMAT_I420:
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case VIDEO_FORMAT_NV12:
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case VIDEO_FORMAT_YVYU:
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case VIDEO_FORMAT_YUY2:
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case VIDEO_FORMAT_UYVY:
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return true;
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case VIDEO_FORMAT_NONE:
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case VIDEO_FORMAT_RGBA:
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case VIDEO_FORMAT_BGRA:
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case VIDEO_FORMAT_BGRX:
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return false;
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}
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return false;
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}
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enum video_scale_type {
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VIDEO_SCALE_POINT = 0,
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VIDEO_SCALE_FAST_BILINEAR = 1,
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VIDEO_SCALE_DEFAULT = VIDEO_SCALE_FAST_BILINEAR,
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VIDEO_SCALE_BILINEAR = 2,
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VIDEO_SCALE_BICUBIC = 3,
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};
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enum video_colorspace {
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VIDEO_CS_601 = 0,
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VIDEO_CS_DEFAULT = VIDEO_CS_601,
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VIDEO_CS_709 = 1,
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};
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struct video_scale_info {
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enum video_format format;
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uint32_t width;
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uint32_t height;
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bool full_range;
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enum video_colorspace colorspace;
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};
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#define VIDEO_OUTPUT_SUCCESS 0
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#define VIDEO_OUTPUT_INVALIDPARAM -1
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#define VIDEO_OUTPUT_FAIL -2
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EXPORT int video_output_open(video_t *video, struct video_output_info *info);
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EXPORT void video_output_close(video_t video);
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EXPORT bool video_output_connect(video_t video,
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struct video_scale_info *conversion,
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void (*callback)(void *param, const struct video_data *frame),
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void *param);
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EXPORT void video_output_disconnect(video_t video,
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void (*callback)(void *param, const struct video_data *frame),
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void *param);
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EXPORT bool video_output_active(video_t video);
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EXPORT const struct video_output_info *video_output_getinfo(video_t video);
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EXPORT void video_output_swap_frame(video_t video, struct video_data *frame);
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EXPORT bool video_output_wait(video_t video);
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EXPORT uint64_t video_getframetime(video_t video);
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EXPORT uint64_t video_gettime(video_t video);
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EXPORT void video_output_stop(video_t video);
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#ifdef __cplusplus
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}
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#endif
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