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-rw-r--r--video/filter/vf_scale.c718
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
+};
+
+//===========================================================================//