mirror of https://github.com/mpv-player/mpv
120 lines
3.1 KiB
C
120 lines
3.1 KiB
C
// requires libdv-0.9.5 !!!
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// (v0.9.0 is too old and has no encoding functionality exported!)
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "../config.h"
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#include "../mp_msg.h"
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#ifdef HAVE_LIBDV095
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#include "codec-cfg.h"
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#include "stream.h"
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#include "demuxer.h"
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#include "stheader.h"
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#include "aviwrite.h"
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#include "img_format.h"
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#include "mp_image.h"
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#include "vf.h"
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#include <libdv/dv.h>
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extern void mencoder_write_chunk(aviwrite_stream_t *s,int len,unsigned int flags);
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#ifndef DV_WIDTH
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#define DV_WIDTH 720
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#define DV_PAL_HEIGHT 576
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#define DV_NTSC_HEIGHT 480
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#endif
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struct vf_priv_s {
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aviwrite_stream_t* mux;
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dv_encoder_t* enc;
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};
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#define mux_v (vf->priv->mux)
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//===========================================================================//
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static int config(struct vf_instance_s* vf,
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int width, int height, int d_width, int d_height,
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unsigned int flags, unsigned int outfmt){
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if(width!=DV_WIDTH || (height!=DV_PAL_HEIGHT && height!=DV_NTSC_HEIGHT)){
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mp_msg(MSGT_VFILTER,MSGL_ERR,"DV: only 720x480 (NTSC) and 720x576 (PAL) resolutions allowed! try with -vop scale=720:480\n");
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}
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vf->priv->enc->isPAL=(height==DV_PAL_HEIGHT);
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vf->priv->enc->is16x9=(d_width/(float)d_height > 1.7); // 16:9=1.777777
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vf->priv->enc->vlc_encode_passes=3;
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vf->priv->enc->static_qno=0;
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vf->priv->enc->force_dct=0;
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mux_v->bih->biWidth=width;
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mux_v->bih->biHeight=height;
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mux_v->bih->biSizeImage=mux_v->bih->biWidth*mux_v->bih->biHeight*(mux_v->bih->biBitCount/8);
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return 1;
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}
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static int control(struct vf_instance_s* vf, int request, void* data){
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return CONTROL_UNKNOWN;
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}
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static int query_format(struct vf_instance_s* vf, unsigned int fmt){
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if(fmt==IMGFMT_YUY2) return 3;
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if(fmt==IMGFMT_RGB24) return 1;
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return 0;
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}
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static int put_image(struct vf_instance_s* vf, mp_image_t *mpi){
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dv_encode_full_frame(vf->priv->enc, mpi->planes,
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(mpi->flags&MP_IMGFLAG_YUV) ? e_dv_color_yuv : e_dv_color_rgb,
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mux_v->buffer);
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mencoder_write_chunk(mux_v, 480 * (vf->priv->enc->isPAL ? 300 : 250) , 0x10);
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return 1;
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}
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//===========================================================================//
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static int vf_open(vf_instance_t *vf, char* args){
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vf->config=config;
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vf->control=control;
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vf->query_format=query_format;
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vf->put_image=put_image;
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vf->priv=malloc(sizeof(struct vf_priv_s));
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memset(vf->priv,0,sizeof(struct vf_priv_s));
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vf->priv->mux=args;
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vf->priv->enc=dv_encoder_new(1,1,1); // FIXME, parse some options!
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if(!vf->priv->enc) return 0;
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mux_v->bih=malloc(sizeof(BITMAPINFOHEADER));
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mux_v->bih->biSize=sizeof(BITMAPINFOHEADER);
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mux_v->bih->biWidth=0;
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mux_v->bih->biHeight=0;
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mux_v->bih->biCompression=mmioFOURCC('d','v','s','d');
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mux_v->bih->biPlanes=1;
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mux_v->bih->biBitCount=24;
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return 1;
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}
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vf_info_t ve_info_libdv = {
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"DV encoder using libdv",
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"libdv",
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"A'rpi",
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"for internal use by mencoder",
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vf_open
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};
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//===========================================================================//
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#endif
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