int video_scaler_create(video_scaler_t **scaler_out, const struct video_scale_info *dst, const struct video_scale_info *src, enum video_scale_type type) { enum AVPixelFormat format_src = get_ffmpeg_video_format(src->format); enum AVPixelFormat format_dst = get_ffmpeg_video_format(dst->format); int scale_type = get_ffmpeg_scale_type(type); const int *coeff_src = get_ffmpeg_coeffs(src->colorspace); const int *coeff_dst = get_ffmpeg_coeffs(dst->colorspace); int range_src = get_ffmpeg_range_type(src->range); int range_dst = get_ffmpeg_range_type(dst->range); struct video_scaler *scaler; int ret; if (!scaler_out) return VIDEO_SCALER_FAILED; if (format_src == AV_PIX_FMT_NONE || format_dst == AV_PIX_FMT_NONE) return VIDEO_SCALER_BAD_CONVERSION; scaler = bzalloc(sizeof(struct video_scaler)); scaler->src_height = src->height; scaler->swscale = sws_getCachedContext(NULL, src->width, src->height, format_src, dst->width, dst->height, format_dst, scale_type, NULL, NULL, NULL); if (!scaler->swscale) { blog(LOG_ERROR, "video_scaler_create: Could not create " "swscale"); goto fail; } ret = sws_setColorspaceDetails(scaler->swscale, coeff_src, range_src, coeff_dst, range_dst, 0, FIXED_1_0, FIXED_1_0); if (ret < 0) { blog(LOG_DEBUG, "video_scaler_create: " "sws_setColorspaceDetails failed, ignoring"); } *scaler_out = scaler; return VIDEO_SCALER_SUCCESS; fail: video_scaler_destroy(scaler); return VIDEO_SCALER_FAILED; }
static inline void video_input_free(struct video_input *input) { for (size_t i = 0; i < MAX_CONVERT_BUFFERS; i++) video_frame_free(&input->frame[i]); video_scaler_destroy(input->scaler); }