diff options
Diffstat (limited to 'libavfilter/libmpcodecs/vf_eq.c')
| -rw-r--r-- | libavfilter/libmpcodecs/vf_eq.c | 240 |
1 files changed, 240 insertions, 0 deletions
diff --git a/libavfilter/libmpcodecs/vf_eq.c b/libavfilter/libmpcodecs/vf_eq.c new file mode 100644 index 0000000..df4e851 --- /dev/null +++ b/libavfilter/libmpcodecs/vf_eq.c @@ -0,0 +1,240 @@ +/* + * 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 "config.h" +#include "mp_msg.h" +#include "cpudetect.h" + +#include "img_format.h" +#include "mp_image.h" +#include "vf.h" + +#include "libvo/video_out.h" + +static struct vf_priv_s { + unsigned char *buf; + int brightness; + int contrast; +}; + +#if HAVE_MMX +static void process_MMX(unsigned char *dest, int dstride, unsigned char *src, int sstride, + int w, int h, int brightness, int contrast) +{ + int i; + int pel; + int dstep = dstride-w; + int sstep = sstride-w; + short brvec[4]; + short contvec[4]; + + contrast = ((contrast+100)*256*16)/100; + brightness = ((brightness+100)*511)/200-128 - contrast/32; + + brvec[0] = brvec[1] = brvec[2] = brvec[3] = brightness; + contvec[0] = contvec[1] = contvec[2] = contvec[3] = contrast; + + while (h--) { + __asm__ volatile ( + "movq (%5), %%mm3 \n\t" + "movq (%6), %%mm4 \n\t" + "pxor %%mm0, %%mm0 \n\t" + "movl %4, %%eax\n\t" + ASMALIGN(4) + "1: \n\t" + "movq (%0), %%mm1 \n\t" + "movq (%0), %%mm2 \n\t" + "punpcklbw %%mm0, %%mm1 \n\t" + "punpckhbw %%mm0, %%mm2 \n\t" + "psllw $4, %%mm1 \n\t" + "psllw $4, %%mm2 \n\t" + "pmulhw %%mm4, %%mm1 \n\t" + "pmulhw %%mm4, %%mm2 \n\t" + "paddw %%mm3, %%mm1 \n\t" + "paddw %%mm3, %%mm2 \n\t" + "packuswb %%mm2, %%mm1 \n\t" + "add $8, %0 \n\t" + "movq %%mm1, (%1) \n\t" + "add $8, %1 \n\t" + "decl %%eax \n\t" + "jnz 1b \n\t" + : "=r" (src), "=r" (dest) + : "0" (src), "1" (dest), "r" (w>>3), "r" (brvec), "r" (contvec) + : "%eax" + ); + + for (i = w&7; i; i--) + { + pel = ((*src++* contrast)>>12) + brightness; + if(pel&768) pel = (-pel)>>31; + *dest++ = pel; + } + + src += sstep; + dest += dstep; + } + __asm__ volatile ( "emms \n\t" ::: "memory" ); +} +#endif + +static void process_C(unsigned char *dest, int dstride, unsigned char *src, int sstride, + int w, int h, int brightness, int contrast) +{ + int i; + int pel; + int dstep = dstride-w; + int sstep = sstride-w; + + contrast = ((contrast+100)*256*256)/100; + brightness = ((brightness+100)*511)/200-128 - contrast/512; + + while (h--) { + for (i = w; i; i--) + { + pel = ((*src++* contrast)>>16) + brightness; + if(pel&768) pel = (-pel)>>31; + *dest++ = pel; + } + src += sstep; + dest += dstep; + } +} + +static void (*process)(unsigned char *dest, int dstride, unsigned char *src, int sstride, + int w, int h, int brightness, int contrast); + +/* FIXME: add packed yuv version of process */ + +static int put_image(struct vf_instance *vf, mp_image_t *mpi, double pts) +{ + mp_image_t *dmpi; + + dmpi=vf_get_image(vf->next, mpi->imgfmt, + MP_IMGTYPE_EXPORT, 0, + mpi->w, mpi->h); + + dmpi->stride[0] = mpi->stride[0]; + dmpi->planes[1] = mpi->planes[1]; + dmpi->planes[2] = mpi->planes[2]; + dmpi->stride[1] = mpi->stride[1]; + dmpi->stride[2] = mpi->stride[2]; + + if (!vf->priv->buf) vf->priv->buf = malloc(mpi->stride[0]*mpi->h); + + if ((vf->priv->brightness == 0) && (vf->priv->contrast == 0)) + dmpi->planes[0] = mpi->planes[0]; + else { + dmpi->planes[0] = vf->priv->buf; + process(dmpi->planes[0], dmpi->stride[0], + mpi->planes[0], mpi->stride[0], + mpi->w, mpi->h, vf->priv->brightness, + vf->priv->contrast); + } + + return vf_next_put_image(vf,dmpi, pts); +} + +static int control(struct vf_instance *vf, int request, void* data) +{ + vf_equalizer_t *eq; + + switch (request) { + case VFCTRL_SET_EQUALIZER: + eq = data; + if (!strcmp(eq->item,"brightness")) { + vf->priv->brightness = eq->value; + return CONTROL_TRUE; + } + else if (!strcmp(eq->item,"contrast")) { + vf->priv->contrast = eq->value; + return CONTROL_TRUE; + } + break; + case VFCTRL_GET_EQUALIZER: + eq = data; + if (!strcmp(eq->item,"brightness")) { + eq->value = vf->priv->brightness; + return CONTROL_TRUE; + } + else if (!strcmp(eq->item,"contrast")) { + eq->value = vf->priv->contrast; + return CONTROL_TRUE; + } + break; + } + return vf_next_control(vf, request, data); +} + +static int query_format(struct vf_instance *vf, unsigned int fmt) +{ + switch (fmt) { + case IMGFMT_YVU9: + case IMGFMT_IF09: + case IMGFMT_YV12: + case IMGFMT_I420: + case IMGFMT_IYUV: + case IMGFMT_CLPL: + case IMGFMT_Y800: + case IMGFMT_Y8: + case IMGFMT_NV12: + case IMGFMT_NV21: + case IMGFMT_444P: + case IMGFMT_422P: + case IMGFMT_411P: + return vf_next_query_format(vf, fmt); + } + return 0; +} + +static void uninit(struct vf_instance *vf) +{ + free(vf->priv->buf); + free(vf->priv); +} + +static int vf_open(vf_instance_t *vf, char *args) +{ + vf->control=control; + vf->query_format=query_format; + vf->put_image=put_image; + vf->uninit=uninit; + + vf->priv = malloc(sizeof(struct vf_priv_s)); + memset(vf->priv, 0, sizeof(struct vf_priv_s)); + if (args) sscanf(args, "%d:%d", &vf->priv->brightness, &vf->priv->contrast); + + process = process_C; +#if HAVE_MMX + if(gCpuCaps.hasMMX) process = process_MMX; +#endif + + return 1; +} + +const vf_info_t vf_info_eq = { + "soft video equalizer", + "eq", + "Richard Felker", + "", + vf_open, +}; |
