mirror of https://github.com/mpv-player/mpv
84 lines
1.8 KiB
C
84 lines
1.8 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/types.h>
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#include <unistd.h>
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#include <math.h>
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#include "config.h"
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#include "img_format.h"
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#include <libdv/dv.h>
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#include <libdv/dv_types.h>
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#include "stream/stream.h"
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#include "libmpdemux/demuxer.h"
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#include "libmpdemux/stheader.h"
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#include "vd_internal.h"
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static vd_info_t info =
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{
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"Raw DV Video Decoder",
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"libdv",
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"Alexander Neundorf <neundorf@kde.org>",
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"http://libdv.sf.net",
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"native codec"
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};
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LIBVD_EXTERN(libdv)
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// to set/get/query special features/parameters
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static int control(sh_video_t *sh,int cmd,void* arg,...){
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return CONTROL_UNKNOWN;
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}
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static dv_decoder_t* global_rawdv_decoder=NULL;
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dv_decoder_t* init_global_rawdv_decoder(void)
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{
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if(!global_rawdv_decoder){
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global_rawdv_decoder=dv_decoder_new(TRUE,TRUE,FALSE);
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global_rawdv_decoder->quality=DV_QUALITY_BEST;
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global_rawdv_decoder->prev_frame_decoded = 0;
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}
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return global_rawdv_decoder;
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}
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// init driver
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static int init(sh_video_t *sh)
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{
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sh->context = (void *)init_global_rawdv_decoder();
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return mpcodecs_config_vo(sh,sh->disp_w,sh->disp_h,IMGFMT_YUY2);
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}
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// uninit driver
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static void uninit(sh_video_t *sh){
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}
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// decode a frame
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static mp_image_t* decode(sh_video_t *sh,void* data,int len,int flags)
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{
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mp_image_t* mpi;
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dv_decoder_t *decoder=sh->context;
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if(len<=0 || (flags&3)){
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// fprintf(stderr,"decode() (rawdv) SKIPPED\n");
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return NULL; // skipped frame
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}
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dv_parse_header(decoder, data);
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mpi=mpcodecs_get_image(sh, MP_IMGTYPE_TEMP, MP_IMGFLAG_ACCEPT_STRIDE, sh->disp_w, sh->disp_h);
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if(!mpi){ // temporary!
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fprintf(stderr,"couldn't allocate image for stderr codec\n");
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return NULL;
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}
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dv_decode_full_frame(decoder, data, e_dv_color_yuv, mpi->planes, mpi->stride);
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return mpi;
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}
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