diff options
Diffstat (limited to 'video/filter/vf_scale.c')
-rw-r--r-- | video/filter/vf_scale.c | 718 |
1 files changed, 718 insertions, 0 deletions
diff --git a/video/filter/vf_scale.c b/video/filter/vf_scale.c new file mode 100644 index 0000000000..5ea62bacbd --- /dev/null +++ b/video/filter/vf_scale.c @@ -0,0 +1,718 @@ +/* + * This file is part of MPlayer. + * + * MPlayer is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * MPlayer 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 General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with MPlayer; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + */ + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <inttypes.h> +#include <sys/types.h> + +#include "config.h" +#include "mp_msg.h" +#include "options.h" + +#include "img_format.h" +#include "mp_image.h" +#include "vf.h" +#include "fmt-conversion.h" +#include "mpbswap.h" + +#include "libmpcodecs/sws_utils.h" + +#include "libvo/csputils.h" +// VOFLAG_SWSCALE +#include "libvo/video_out.h" + +#include "m_option.h" +#include "m_struct.h" + +static struct vf_priv_s { + int w,h; + int cfg_w, cfg_h; + int v_chr_drop; + double param[2]; + unsigned int fmt; + struct SwsContext *ctx; + struct SwsContext *ctx2; //for interlaced slices only + unsigned char* palette; + int interlaced; + int noup; + int accurate_rnd; + struct mp_csp_details colorspace; +} const vf_priv_dflt = { + 0, 0, + -1,-1, + 0, + {SWS_PARAM_DEFAULT, SWS_PARAM_DEFAULT}, + 0, + NULL, + NULL, + NULL +}; + +//===========================================================================// + +static const unsigned int outfmt_list[]={ +// YUV: + IMGFMT_444P, + IMGFMT_444P16_LE, + IMGFMT_444P16_BE, + IMGFMT_444P10_LE, + IMGFMT_444P10_BE, + IMGFMT_444P9_LE, + IMGFMT_444P9_BE, + IMGFMT_422P, + IMGFMT_422P16_LE, + IMGFMT_422P16_BE, + IMGFMT_422P10_LE, + IMGFMT_422P10_BE, + IMGFMT_422P9_LE, + IMGFMT_422P9_BE, + IMGFMT_YV12, + IMGFMT_I420, + IMGFMT_420P16_LE, + IMGFMT_420P16_BE, + IMGFMT_420P10_LE, + IMGFMT_420P10_BE, + IMGFMT_420P9_LE, + IMGFMT_420P9_BE, + IMGFMT_420A, + IMGFMT_IYUV, + IMGFMT_YVU9, + IMGFMT_IF09, + IMGFMT_411P, + IMGFMT_NV12, + IMGFMT_NV21, + IMGFMT_YUY2, + IMGFMT_UYVY, + IMGFMT_440P, +// RGB and grayscale (Y8 and Y800): + IMGFMT_BGR32, + IMGFMT_RGB32, + IMGFMT_BGR24, + IMGFMT_RGB24, + IMGFMT_GBRP, + IMGFMT_RGB48LE, + IMGFMT_RGB48BE, + IMGFMT_BGR16, + IMGFMT_RGB16, + IMGFMT_BGR15, + IMGFMT_RGB15, + IMGFMT_BGR12, + IMGFMT_RGB12, + IMGFMT_Y800, + IMGFMT_Y8, + IMGFMT_BGR8, + IMGFMT_RGB8, + IMGFMT_BGR4, + IMGFMT_RGB4, + IMGFMT_BG4B, + IMGFMT_RG4B, + IMGFMT_BGR1, + IMGFMT_RGB1, + 0 +}; + +/** + * A list of preferred conversions, in order of preference. + * This should be used for conversions that e.g. involve no scaling + * or to stop vf_scale from choosing a conversion that has no + * fast assembler implementation. + */ +static int preferred_conversions[][2] = { + {IMGFMT_YUY2, IMGFMT_UYVY}, + {IMGFMT_YUY2, IMGFMT_422P}, + {IMGFMT_UYVY, IMGFMT_YUY2}, + {IMGFMT_UYVY, IMGFMT_422P}, + {IMGFMT_422P, IMGFMT_YUY2}, + {IMGFMT_422P, IMGFMT_UYVY}, + {IMGFMT_GBRP, IMGFMT_BGR24}, + {IMGFMT_GBRP, IMGFMT_RGB24}, + {IMGFMT_GBRP, IMGFMT_BGR32}, + {IMGFMT_GBRP, IMGFMT_RGB32}, + {0, 0} +}; + +static unsigned int find_best_out(vf_instance_t *vf, int in_format){ + unsigned int best=0; + int i = -1; + int j = -1; + int format = 0; + + // find the best outfmt: + while (1) { + int ret; + if (j < 0) { + format = in_format; + j = 0; + } else if (i < 0) { + while (preferred_conversions[j][0] && + preferred_conversions[j][0] != in_format) + j++; + format = preferred_conversions[j++][1]; + // switch to standard list + if (!format) + i = 0; + } + if (i >= 0) + format = outfmt_list[i++]; + if (!format) + break; + ret = vf_next_query_format(vf, format); + + mp_msg(MSGT_VFILTER,MSGL_DBG2,"scale: query(%s) -> %d\n",vo_format_name(format),ret&3); + if(ret&VFCAP_CSP_SUPPORTED_BY_HW){ + best=format; // no conversion -> bingo! + break; + } + if(ret&VFCAP_CSP_SUPPORTED && !best) + best=format; // best with conversion + } + return best; +} + +static int config(struct vf_instance *vf, + int width, int height, int d_width, int d_height, + unsigned int flags, unsigned int outfmt){ + struct MPOpts *opts = vf->opts; + unsigned int best=find_best_out(vf, outfmt); + int vo_flags; + int int_sws_flags=0; + int round_w=0, round_h=0; + int i; + SwsFilter *srcFilter, *dstFilter; + enum PixelFormat dfmt, sfmt; + + vf->priv->colorspace = (struct mp_csp_details) {0}; + + if(!best){ + mp_msg(MSGT_VFILTER,MSGL_WARN,"SwScale: no supported outfmt found :(\n"); + return 0; + } + sfmt = imgfmt2pixfmt(outfmt); + if (outfmt == IMGFMT_RGB8 || outfmt == IMGFMT_BGR8) sfmt = PIX_FMT_PAL8; + dfmt = imgfmt2pixfmt(best); + + vo_flags=vf->next->query_format(vf->next,best); + + vf->priv->w = vf->priv->cfg_w; + vf->priv->h = vf->priv->cfg_h; + + // scaling to dwidth*d_height, if all these TRUE: + // - option -zoom + // - no other sw/hw up/down scaling avail. + // - we're after postproc + // - user didn't set w:h + if(!(vo_flags&VFCAP_POSTPROC) && (flags&VOFLAG_SWSCALE) && + vf->priv->w<0 && vf->priv->h<0){ // -zoom + int x=(vo_flags&VFCAP_SWSCALE) ? 0 : 1; + if(d_width<width || d_height<height){ + // downscale! + if(vo_flags&VFCAP_HWSCALE_DOWN) x=0; + } else { + // upscale: + if(vo_flags&VFCAP_HWSCALE_UP) x=0; + } + if(x){ + // user wants sw scaling! (-zoom) + vf->priv->w=d_width; + vf->priv->h=d_height; + } + } + + if (vf->priv->w <= -8) { + vf->priv->w += 8; + round_w = 1; + } + if (vf->priv->h <= -8) { + vf->priv->h += 8; + round_h = 1; + } + + if (vf->priv->w < -3 || vf->priv->h < -3 || + (vf->priv->w < -1 && vf->priv->h < -1)) { + // TODO: establish a direct connection to the user's brain + // and find out what the heck he thinks MPlayer should do + // with this nonsense. + mp_msg(MSGT_VFILTER, MSGL_ERR, "SwScale: EUSERBROKEN Check your parameters, they make no sense!\n"); + return 0; + } + + if (vf->priv->w == -1) + vf->priv->w = width; + if (vf->priv->w == 0) + vf->priv->w = d_width; + + if (vf->priv->h == -1) + vf->priv->h = height; + if (vf->priv->h == 0) + vf->priv->h = d_height; + + if (vf->priv->w == -3) + vf->priv->w = vf->priv->h * width / height; + if (vf->priv->w == -2) + vf->priv->w = vf->priv->h * d_width / d_height; + + if (vf->priv->h == -3) + vf->priv->h = vf->priv->w * height / width; + if (vf->priv->h == -2) + vf->priv->h = vf->priv->w * d_height / d_width; + + if (round_w) + vf->priv->w = ((vf->priv->w + 8) / 16) * 16; + if (round_h) + vf->priv->h = ((vf->priv->h + 8) / 16) * 16; + + // check for upscaling, now that all parameters had been applied + if(vf->priv->noup){ + if((vf->priv->w > width) + (vf->priv->h > height) >= vf->priv->noup){ + vf->priv->w= width; + vf->priv->h= height; + } + } + + // calculate the missing parameters: + switch(best) { + case IMGFMT_YV12: /* YV12 needs w & h rounded to 2 */ + case IMGFMT_I420: + case IMGFMT_IYUV: + case IMGFMT_NV12: + case IMGFMT_NV21: + vf->priv->h = (vf->priv->h + 1) & ~1; + case IMGFMT_YUY2: /* YUY2 needs w rounded to 2 */ + case IMGFMT_UYVY: + vf->priv->w = (vf->priv->w + 1) & ~1; + } + + mp_msg(MSGT_VFILTER,MSGL_DBG2,"SwScale: scaling %dx%d %s to %dx%d %s \n", + width,height,vo_format_name(outfmt), + vf->priv->w,vf->priv->h,vo_format_name(best)); + + // free old ctx: + if(vf->priv->ctx) sws_freeContext(vf->priv->ctx); + if(vf->priv->ctx2)sws_freeContext(vf->priv->ctx2); + + // new swscaler: + sws_getFlagsAndFilterFromCmdLine(&int_sws_flags, &srcFilter, &dstFilter); + int_sws_flags|= vf->priv->v_chr_drop << SWS_SRC_V_CHR_DROP_SHIFT; + int_sws_flags|= vf->priv->accurate_rnd * SWS_ACCURATE_RND; + vf->priv->ctx=sws_getContext(width, height >> vf->priv->interlaced, + sfmt, + vf->priv->w, vf->priv->h >> vf->priv->interlaced, + dfmt, + int_sws_flags, srcFilter, dstFilter, vf->priv->param); + if(vf->priv->interlaced){ + vf->priv->ctx2=sws_getContext(width, height >> 1, + sfmt, + vf->priv->w, vf->priv->h >> 1, + dfmt, + int_sws_flags, srcFilter, dstFilter, vf->priv->param); + } + if(!vf->priv->ctx){ + // error... + mp_msg(MSGT_VFILTER,MSGL_WARN,"Couldn't init SwScaler for this setup\n"); + return 0; + } + vf->priv->fmt=best; + + free(vf->priv->palette); + vf->priv->palette=NULL; + switch(best){ + case IMGFMT_RGB8: { + /* set 332 palette for 8 bpp */ + vf->priv->palette=malloc(4*256); + for(i=0; i<256; i++){ + vf->priv->palette[4*i+0]=4*(i>>6)*21; + vf->priv->palette[4*i+1]=4*((i>>3)&7)*9; + vf->priv->palette[4*i+2]=4*((i&7)&7)*9; + vf->priv->palette[4*i+3]=0; + } + break; } + case IMGFMT_BGR8: { + /* set 332 palette for 8 bpp */ + vf->priv->palette=malloc(4*256); + for(i=0; i<256; i++){ + vf->priv->palette[4*i+0]=4*(i&3)*21; + vf->priv->palette[4*i+1]=4*((i>>2)&7)*9; + vf->priv->palette[4*i+2]=4*((i>>5)&7)*9; + vf->priv->palette[4*i+3]=0; + } + break; } + case IMGFMT_BGR4: + case IMGFMT_BG4B: { + vf->priv->palette=malloc(4*16); + for(i=0; i<16; i++){ + vf->priv->palette[4*i+0]=4*(i&1)*63; + vf->priv->palette[4*i+1]=4*((i>>1)&3)*21; + vf->priv->palette[4*i+2]=4*((i>>3)&1)*63; + vf->priv->palette[4*i+3]=0; + } + break; } + case IMGFMT_RGB4: + case IMGFMT_RG4B: { + vf->priv->palette=malloc(4*16); + for(i=0; i<16; i++){ + vf->priv->palette[4*i+0]=4*(i>>3)*63; + vf->priv->palette[4*i+1]=4*((i>>1)&3)*21; + vf->priv->palette[4*i+2]=4*((i&1)&1)*63; + vf->priv->palette[4*i+3]=0; + } + break; } + } + + if (!opts->screen_size_x && !opts->screen_size_y + && !(opts->screen_size_xy >= 0.001)) { + // Compute new d_width and d_height, preserving aspect + // while ensuring that both are >= output size in pixels. + if (vf->priv->h * d_width > vf->priv->w * d_height) { + d_width = vf->priv->h * d_width / d_height; + d_height = vf->priv->h; + } else { + d_height = vf->priv->w * d_height / d_width; + d_width = vf->priv->w; + } + //d_width=d_width*vf->priv->w/width; + //d_height=d_height*vf->priv->h/height; + } + return vf_next_config(vf,vf->priv->w,vf->priv->h,d_width,d_height,flags,best); +} + +static void start_slice(struct vf_instance *vf, mp_image_t *mpi){ +// printf("start_slice called! flag=%d\n",mpi->flags&MP_IMGFLAG_DRAW_CALLBACK); + if(!(mpi->flags&MP_IMGFLAG_DRAW_CALLBACK)) return; // shouldn't happen + // they want slices!!! allocate the buffer. + mpi->priv=vf->dmpi=vf_get_image(vf->next,vf->priv->fmt, +// mpi->type, mpi->flags & (~MP_IMGFLAG_DRAW_CALLBACK), + MP_IMGTYPE_TEMP, MP_IMGFLAG_ACCEPT_STRIDE | MP_IMGFLAG_PREFER_ALIGNED_STRIDE, + vf->priv->w, vf->priv->h); +} + +static void scale(struct SwsContext *sws1, struct SwsContext *sws2, uint8_t *src[MP_MAX_PLANES], int src_stride[MP_MAX_PLANES], + int y, int h, uint8_t *dst[MP_MAX_PLANES], int dst_stride[MP_MAX_PLANES], int interlaced){ + const uint8_t *src2[MP_MAX_PLANES]={src[0], src[1], src[2], src[3]}; +#if BYTE_ORDER == BIG_ENDIAN + uint32_t pal2[256]; + if (src[1] && !src[2]){ + int i; + for(i=0; i<256; i++) + pal2[i]= bswap_32(((uint32_t*)src[1])[i]); + src2[1]= pal2; + } +#endif + + if(interlaced){ + int i; + uint8_t *dst2[MP_MAX_PLANES]={dst[0], dst[1], dst[2], dst[3]}; + int src_stride2[MP_MAX_PLANES]={2*src_stride[0], 2*src_stride[1], 2*src_stride[2], 2*src_stride[3]}; + int dst_stride2[MP_MAX_PLANES]={2*dst_stride[0], 2*dst_stride[1], 2*dst_stride[2], 2*dst_stride[3]}; + + sws_scale(sws1, src2, src_stride2, y>>1, h>>1, dst2, dst_stride2); + for(i=0; i<MP_MAX_PLANES; i++){ + src2[i] += src_stride[i]; + dst2[i] += dst_stride[i]; + } + sws_scale(sws2, src2, src_stride2, y>>1, h>>1, dst2, dst_stride2); + }else{ + sws_scale(sws1, src2, src_stride, y, h, dst, dst_stride); + } +} + +static void draw_slice(struct vf_instance *vf, + unsigned char** src, int* stride, int w,int h, int x, int y){ + mp_image_t *dmpi=vf->dmpi; + if(!dmpi){ + mp_msg(MSGT_VFILTER,MSGL_FATAL,"vf_scale: draw_slice() called with dmpi=NULL (no get_image?)\n"); + return; + } +// printf("vf_scale::draw_slice() y=%d h=%d\n",y,h); + scale(vf->priv->ctx, vf->priv->ctx2, src, stride, y, h, dmpi->planes, dmpi->stride, vf->priv->interlaced); +} + +static int put_image(struct vf_instance *vf, mp_image_t *mpi, double pts){ + mp_image_t *dmpi=mpi->priv; + +// printf("vf_scale::put_image(): processing whole frame! dmpi=%p flag=%d\n", +// dmpi, (mpi->flags&MP_IMGFLAG_DRAW_CALLBACK)); + + if(!(mpi->flags&MP_IMGFLAG_DRAW_CALLBACK && dmpi)){ + + // hope we'll get DR buffer: + dmpi=vf_get_image(vf->next,vf->priv->fmt, + MP_IMGTYPE_TEMP, MP_IMGFLAG_ACCEPT_STRIDE | MP_IMGFLAG_PREFER_ALIGNED_STRIDE, + vf->priv->w, vf->priv->h); + + scale(vf->priv->ctx, vf->priv->ctx, mpi->planes,mpi->stride,0,mpi->h,dmpi->planes,dmpi->stride, vf->priv->interlaced); + } + + if(vf->priv->w==mpi->w && vf->priv->h==mpi->h){ + // just conversion, no scaling -> keep postprocessing data + // this way we can apply pp filter to non-yv12 source using scaler + vf_clone_mpi_attributes(dmpi, mpi); + } + + if(vf->priv->palette) dmpi->planes[1]=vf->priv->palette; // export palette! + + return vf_next_put_image(vf,dmpi, pts); +} + +static int control(struct vf_instance *vf, int request, void* data){ + int *table; + int *inv_table; + int r; + int brightness, contrast, saturation, srcRange, dstRange; + vf_equalizer_t *eq; + + if(vf->priv->ctx) + switch(request){ + case VFCTRL_GET_EQUALIZER: + r= sws_getColorspaceDetails(vf->priv->ctx, &inv_table, &srcRange, &table, &dstRange, &brightness, &contrast, &saturation); + if(r<0) break; + + eq = data; + if (!strcmp(eq->item,"brightness")) { + eq->value = ((brightness*100) + (1<<15))>>16; + } + else if (!strcmp(eq->item,"contrast")) { + eq->value = (((contrast *100) + (1<<15))>>16) - 100; + } + else if (!strcmp(eq->item,"saturation")) { + eq->value = (((saturation*100) + (1<<15))>>16) - 100; + } + else + break; + return CONTROL_TRUE; + case VFCTRL_SET_EQUALIZER: + r= sws_getColorspaceDetails(vf->priv->ctx, &inv_table, &srcRange, &table, &dstRange, &brightness, &contrast, &saturation); + if(r<0) break; +//printf("set %f %f %f\n", brightness/(float)(1<<16), contrast/(float)(1<<16), saturation/(float)(1<<16)); + eq = data; + + if (!strcmp(eq->item,"brightness")) { + brightness = (( eq->value <<16) + 50)/100; + } + else if (!strcmp(eq->item,"contrast")) { + contrast = (((eq->value+100)<<16) + 50)/100; + } + else if (!strcmp(eq->item,"saturation")) { + saturation = (((eq->value+100)<<16) + 50)/100; + } + else + break; + + r= sws_setColorspaceDetails(vf->priv->ctx, inv_table, srcRange, table, dstRange, brightness, contrast, saturation); + if(r<0) break; + if(vf->priv->ctx2){ + r= sws_setColorspaceDetails(vf->priv->ctx2, inv_table, srcRange, table, dstRange, brightness, contrast, saturation); + if(r<0) break; + } + + return CONTROL_TRUE; + case VFCTRL_SET_YUV_COLORSPACE: { + struct mp_csp_details colorspace = *(struct mp_csp_details *)data; + if (mp_sws_set_colorspace(vf->priv->ctx, &colorspace) >= 0) { + if (vf->priv->ctx2) + mp_sws_set_colorspace(vf->priv->ctx2, &colorspace); + vf->priv->colorspace = colorspace; + return 1; + } + break; + } + case VFCTRL_GET_YUV_COLORSPACE: { + /* This scale filter should never react to colorspace commands if it + * doesn't do YUV->RGB conversion. But because finding out whether this + * is really YUV->RGB (and not YUV->YUV or anything else) is hard, + * react only if the colorspace has been set explicitly before. The + * trick is that mp_sws_set_colorspace does not succeed for YUV->YUV + * and RGB->YUV conversions, which makes this code correct in "most" + * cases. (This would be trivial to do correctly if libswscale exposed + * functionality like isYUV()). + */ + if (vf->priv->colorspace.format) { + *(struct mp_csp_details *)data = vf->priv->colorspace; + return CONTROL_TRUE; + } + break; + } + default: + break; + } + + return vf_next_control(vf,request,data); +} + +static const int mp_csp_to_swscale[MP_CSP_COUNT] = { + [MP_CSP_BT_601] = SWS_CS_ITU601, + [MP_CSP_BT_709] = SWS_CS_ITU709, + [MP_CSP_SMPTE_240M] = SWS_CS_SMPTE240M, +}; + +// Adjust the colorspace used for YUV->RGB conversion. On other conversions, +// do nothing or return an error. +// The csp argument is set to the supported values. +// Return 0 on success and -1 on error. +int mp_sws_set_colorspace(struct SwsContext *sws, struct mp_csp_details *csp) +{ + int *table, *inv_table; + int brightness, contrast, saturation, srcRange, dstRange; + + csp->levels_out = MP_CSP_LEVELS_PC; + + // NOTE: returns an error if the destination format is YUV + if (sws_getColorspaceDetails(sws, &inv_table, &srcRange, &table, &dstRange, + &brightness, &contrast, &saturation) == -1) + goto error_out; + + int sws_csp = mp_csp_to_swscale[csp->format]; + if (sws_csp == 0) { + // colorspace not supported, go with a reasonable default + csp->format = SWS_CS_ITU601; + sws_csp = MP_CSP_BT_601; + } + + /* The swscale API for these is hardly documented. + * Apparently table/range only apply to YUV. Thus dstRange has no effect + * for YUV->RGB conversions, and conversions to limited-range RGB are + * not supported. + */ + srcRange = csp->levels_in == MP_CSP_LEVELS_PC; + const int *new_inv_table = sws_getCoefficients(sws_csp); + + if (sws_setColorspaceDetails(sws, new_inv_table, srcRange, table, dstRange, + brightness, contrast, saturation) == -1) + goto error_out; + + return 0; + +error_out: + *csp = (struct mp_csp_details){0}; + return -1; +} + +//===========================================================================// + +// supported Input formats: YV12, I420, IYUV, YUY2, UYVY, BGR32, BGR24, BGR16, BGR15, RGB32, RGB24, Y8, Y800 + +static int query_format(struct vf_instance *vf, unsigned int fmt){ + if (!IMGFMT_IS_HWACCEL(fmt) && imgfmt2pixfmt(fmt) != PIX_FMT_NONE) { + unsigned int best=find_best_out(vf, fmt); + int flags; + if(!best) return 0; // no matching out-fmt + flags=vf_next_query_format(vf,best); + if(!(flags&(VFCAP_CSP_SUPPORTED|VFCAP_CSP_SUPPORTED_BY_HW))) return 0; // huh? + if(fmt!=best) flags&=~VFCAP_CSP_SUPPORTED_BY_HW; + // do not allow scaling, if we are before the PP fliter! + if(!(flags&VFCAP_POSTPROC)) flags|=VFCAP_SWSCALE; + return flags; + } + return 0; // nomatching in-fmt +} + +static void uninit(struct vf_instance *vf){ + if(vf->priv->ctx) sws_freeContext(vf->priv->ctx); + if(vf->priv->ctx2) sws_freeContext(vf->priv->ctx2); + free(vf->priv->palette); + free(vf->priv); +} + +static int vf_open(vf_instance_t *vf, char *args){ + vf->config=config; + vf->start_slice=start_slice; + vf->draw_slice=draw_slice; + vf->put_image=put_image; + vf->query_format=query_format; + vf->control= control; + vf->uninit=uninit; + mp_msg(MSGT_VFILTER,MSGL_V,"SwScale params: %d x %d (-1=no scaling)\n", + vf->priv->cfg_w, + vf->priv->cfg_h); + + return 1; +} + +/// An example of presets usage +static const struct size_preset { + char* name; + int w, h; +} vf_size_presets_defs[] = { + // TODO add more 'standard' resolutions + { "qntsc", 352, 240 }, + { "qpal", 352, 288 }, + { "ntsc", 720, 480 }, + { "pal", 720, 576 }, + { "sntsc", 640, 480 }, + { "spal", 768, 576 }, + { NULL, 0, 0} +}; + +#define ST_OFF(f) M_ST_OFF(struct size_preset,f) +static const m_option_t vf_size_preset_fields[] = { + {"w", ST_OFF(w), CONF_TYPE_INT, M_OPT_MIN,1 ,0, NULL}, + {"h", ST_OFF(h), CONF_TYPE_INT, M_OPT_MIN,1 ,0, NULL}, + { NULL, NULL, 0, 0, 0, 0, NULL } +}; + +static const m_struct_t vf_size_preset = { + "scale_size_preset", + sizeof(struct size_preset), + NULL, + vf_size_preset_fields +}; + +static const m_struct_t vf_opts; +static const m_obj_presets_t size_preset = { + &vf_size_preset, // Input struct desc + &vf_opts, // Output struct desc + vf_size_presets_defs, // The list of presets + ST_OFF(name) // At wich offset is the name field in the preset struct +}; + +/// Now the options +#undef ST_OFF +#define ST_OFF(f) M_ST_OFF(struct vf_priv_s,f) +static const m_option_t vf_opts_fields[] = { + {"w", ST_OFF(cfg_w), CONF_TYPE_INT, M_OPT_MIN,-11,0, NULL}, + {"h", ST_OFF(cfg_h), CONF_TYPE_INT, M_OPT_MIN,-11,0, NULL}, + {"interlaced", ST_OFF(interlaced), CONF_TYPE_INT, M_OPT_RANGE, 0, 1, NULL}, + {"chr-drop", ST_OFF(v_chr_drop), CONF_TYPE_INT, M_OPT_RANGE, 0, 3, NULL}, + {"param" , ST_OFF(param[0]), CONF_TYPE_DOUBLE, M_OPT_RANGE, 0.0, 100.0, NULL}, + {"param2", ST_OFF(param[1]), CONF_TYPE_DOUBLE, M_OPT_RANGE, 0.0, 100.0, NULL}, + // Note that here the 2 field is NULL (ie 0) + // As we want this option to act on the option struct itself + {"presize", 0, CONF_TYPE_OBJ_PRESETS, 0, 0, 0, (void *)&size_preset}, + {"noup", ST_OFF(noup), CONF_TYPE_INT, M_OPT_RANGE, 0, 2, NULL}, + {"arnd", ST_OFF(accurate_rnd), CONF_TYPE_FLAG, 0, 0, 1, NULL}, + { NULL, NULL, 0, 0, 0, 0, NULL } +}; + +static const m_struct_t vf_opts = { + "scale", + sizeof(struct vf_priv_s), + &vf_priv_dflt, + vf_opts_fields +}; + +const vf_info_t vf_info_scale = { + "software scaling", + "scale", + "A'rpi", + "", + vf_open, + &vf_opts +}; + +//===========================================================================// |