mirror of https://github.com/mpv-player/mpv
295 lines
7.5 KiB
C
295 lines
7.5 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <assert.h>
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#include "config.h"
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#include "mp_msg.h"
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#include "help_mp.h"
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#ifdef USE_LIBAVCODEC
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#include "bswap.h"
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#include "vd_internal.h"
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static vd_info_t info = {
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"FFmpeg's libavcodec codec family",
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"ffmpeg",
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VFM_FFMPEG,
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"A'rpi",
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"http://ffmpeg.sf.net",
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"native codecs"
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};
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LIBVD_EXTERN(ffmpeg)
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#include "../postproc/rgb2rgb.h"
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#ifdef USE_LIBAVCODEC_SO
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#include <libffmpeg/avcodec.h>
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#else
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#include "libavcodec/avcodec.h"
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#endif
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int avcodec_inited=0;
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#ifdef FF_POSTPROCESS
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int quant_store[MBR+1][MBC+1];
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#endif
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typedef struct {
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AVCodecContext *avctx;
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int last_aspect;
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int do_slices;
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int vo_inited;
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int convert;
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int yuy2_support;
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} vd_ffmpeg_ctx;
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//#ifdef FF_POSTPROCESS
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//unsigned int lavc_pp=0;
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//#endif
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#include "cfgparser.h"
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static int lavc_param_workaround_bugs=0;
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static int lavc_param_error_resilience=0;
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struct config lavc_decode_opts_conf[]={
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#if LIBAVCODEC_BUILD >= 4611
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{"bug", &lavc_param_workaround_bugs, CONF_TYPE_INT, CONF_RANGE, 0, 99, NULL},
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{"ver", &lavc_param_error_resilience, CONF_TYPE_INT, CONF_RANGE, -1, 99, NULL},
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#endif
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{NULL, NULL, 0, 0, 0, 0, NULL}
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};
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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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vd_ffmpeg_ctx *ctx = sh->context;
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switch(cmd){
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case VDCTRL_QUERY_FORMAT:
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if( (*((int*)arg)) == IMGFMT_YV12 ) return CONTROL_TRUE;
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if( (*((int*)arg)) == IMGFMT_IYUV ) return CONTROL_TRUE;
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if( (*((int*)arg)) == IMGFMT_I420 ) return CONTROL_TRUE;
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if( (*((int*)arg)) == IMGFMT_YUY2 && ctx->yuy2_support ) return CONTROL_TRUE;
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return CONTROL_FALSE;
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}
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return CONTROL_UNKNOWN;
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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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AVCodecContext *avctx;
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vd_ffmpeg_ctx *ctx;
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AVCodec *lavc_codec;
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if(!avcodec_inited){
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avcodec_init();
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avcodec_register_all();
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avcodec_inited=1;
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}
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ctx = sh->context = malloc(sizeof(vd_ffmpeg_ctx));
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if (!ctx)
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return(0);
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memset(ctx, 0, sizeof(vd_ffmpeg_ctx));
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lavc_codec = (AVCodec *)avcodec_find_decoder_by_name(sh->codec->dll);
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if(!lavc_codec){
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mp_msg(MSGT_DECVIDEO,MSGL_ERR,MSGTR_MissingLAVCcodec,sh->codec->dll);
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return 0;
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}
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if(vd_use_slices && lavc_codec->capabilities&CODEC_CAP_DRAW_HORIZ_BAND)
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ctx->do_slices=1;
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ctx->avctx = malloc(sizeof(AVCodecContext));
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memset(ctx->avctx, 0, sizeof(AVCodecContext));
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avctx = ctx->avctx;
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avctx->width = sh->disp_w;
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avctx->height= sh->disp_h;
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#if LIBAVCODEC_BUILD >= 4611
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avctx->workaround_bugs= lavc_param_workaround_bugs;
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avctx->error_resilience= lavc_param_error_resilience;
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#endif
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mp_dbg(MSGT_DECVIDEO,MSGL_DBG2,"libavcodec.size: %d x %d\n",avctx->width,avctx->height);
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if (sh->format == mmioFOURCC('R', 'V', '1', '3'))
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avctx->sub_id = 3;
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#if LIBAVCODEC_BUILD >= 4605
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/* AVRn stores huffman table in AVI header */
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/* Pegasus MJPEG stores it also in AVI header, but it uses the common
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MJPG fourcc :( */
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if (sh->bih && (sh->bih->biSize != sizeof(BITMAPINFOHEADER)) &&
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(sh->format == mmioFOURCC('A','V','R','n') ||
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sh->format == mmioFOURCC('M','J','P','G')))
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{
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avctx->flags |= CODEC_FLAG_EXTERN_HUFF;
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avctx->extradata_size = sh->bih->biSize-sizeof(BITMAPINFOHEADER);
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avctx->extradata = malloc(avctx->extradata_size);
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memcpy(avctx->extradata, sh->bih+sizeof(BITMAPINFOHEADER),
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avctx->extradata_size);
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#if 0
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{
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int x;
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uint8_t *p = avctx->extradata;
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for (x=0; x<avctx->extradata_size; x++)
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printf("[%x] ", p[x]);
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printf("\n");
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}
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#endif
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}
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#endif
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/* open it */
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if (avcodec_open(avctx, lavc_codec) < 0) {
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mp_msg(MSGT_DECVIDEO,MSGL_ERR, MSGTR_CantOpenCodec);
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return 0;
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}
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mp_msg(MSGT_DECVIDEO,MSGL_V,"INFO: libavcodec init OK!\n");
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ctx->last_aspect=-3;
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return 1; //mpcodecs_config_vo(sh,sh->disp_w,sh->disp_h,IMGFMT_YV12);
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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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vd_ffmpeg_ctx *ctx = sh->context;
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AVCodecContext *avctx = ctx->avctx;
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if (avcodec_close(avctx) < 0)
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mp_msg(MSGT_DECVIDEO,MSGL_ERR, MSGTR_CantCloseCodec);
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#if LIBAVCODEC_BUILD >= 4605
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if (avctx->extradata_size)
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free(avctx->extradata);
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#endif
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if (avctx)
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free(avctx);
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if (ctx)
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free(ctx);
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}
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#include "libvo/video_out.h" // FIXME!!!
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static void draw_slice(struct AVCodecContext *s,
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UINT8 **src, int linesize,
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int y, int width, int height){
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vo_functions_t * output = s->opaque;
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int stride[3];
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stride[0]=linesize;
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stride[1]=stride[2]=stride[0]/2;
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output->draw_slice (src, stride, width, height, 0, y);
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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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int got_picture=0;
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int ret;
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AVPicture lavc_picture;
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vd_ffmpeg_ctx *ctx = sh->context;
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AVCodecContext *avctx = ctx->avctx;
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mp_image_t* mpi=NULL;
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if(len<=0) return NULL; // skipped frame
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avctx->draw_horiz_band=NULL;
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if(ctx->vo_inited && !ctx->convert && !(flags&3)){
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mpi=mpcodecs_get_image(sh, MP_IMGTYPE_EXPORT, MP_IMGFLAG_PRESERVE |
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(ctx->do_slices?MP_IMGFLAG_DRAW_CALLBACK:0),
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sh->disp_w, sh->disp_h);
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if(mpi && mpi->flags&MP_IMGFLAG_DRAW_CALLBACK){
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// vd core likes slices!
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avctx->draw_horiz_band=draw_slice;
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avctx->opaque=sh->video_out;
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}
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}
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#if LIBAVCODEC_BUILD > 4603
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avctx->hurry_up=(flags&3)?((flags&2)?2:1):0;
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#endif
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ret = avcodec_decode_video(avctx, &lavc_picture,
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&got_picture, data, len);
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if(ret<0) mp_msg(MSGT_DECVIDEO,MSGL_WARN, "Error while decoding frame!\n");
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if(!got_picture) return NULL; // skipped image
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if (avctx->aspect_ratio_info != ctx->last_aspect ||
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avctx->width != sh->disp_w ||
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avctx->height != sh->disp_h ||
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!ctx->vo_inited)
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{
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ctx->last_aspect = avctx->aspect_ratio_info;
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switch(avctx->aspect_ratio_info)
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{
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case FF_ASPECT_4_3_625:
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case FF_ASPECT_4_3_525:
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sh->aspect = 4.0/3.0;
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break;
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case FF_ASPECT_16_9_625:
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case FF_ASPECT_16_9_525:
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sh->aspect = 16.0/9.0;
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break;
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case FF_ASPECT_SQUARE:
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sh->aspect = 0.0;
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break;
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}
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sh->disp_w = avctx->width;
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sh->disp_h = avctx->height;
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ctx->vo_inited=1;
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ctx->yuy2_support=(avctx->pix_fmt==PIX_FMT_YUV422P);
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if (!mpcodecs_config_vo(sh,sh->disp_w,sh->disp_h,
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ctx->yuy2_support ? IMGFMT_YUY2 : IMGFMT_YV12))
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return NULL;
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ctx->convert=(sh->codec->outfmt[sh->outfmtidx]==IMGFMT_YUY2);
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}
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if(!mpi && ctx->convert){
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// do yuv422p -> yuy2 conversion:
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mpi=mpcodecs_get_image(sh, MP_IMGTYPE_TEMP, MP_IMGFLAG_ACCEPT_STRIDE,
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avctx->width, avctx->height);
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if(!mpi) return NULL;
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yuv422ptoyuy2(lavc_picture.data[0],lavc_picture.data[1],lavc_picture.data[2],
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mpi->planes[0],avctx->width,avctx->height,
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lavc_picture.linesize[0],lavc_picture.linesize[1],mpi->stride[0]);
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return mpi;
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}
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if(!mpi)
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mpi=mpcodecs_get_image(sh, MP_IMGTYPE_EXPORT, MP_IMGFLAG_PRESERVE,
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avctx->width, avctx->height);
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if(!mpi){ // temporary!
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printf("couldn't allocate image for codec\n");
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return NULL;
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}
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mpi->planes[0]=lavc_picture.data[0];
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mpi->planes[1]=lavc_picture.data[1];
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mpi->planes[2]=lavc_picture.data[2];
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mpi->stride[0]=lavc_picture.linesize[0];
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mpi->stride[1]=lavc_picture.linesize[1];
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mpi->stride[2]=lavc_picture.linesize[2];
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if(avctx->pix_fmt==PIX_FMT_YUV422P){
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// we have 422p but user wants yv12 (420p)
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mpi->stride[1]*=2;
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mpi->stride[2]*=2;
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}
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#ifdef FF_POSTPROCESS
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mpi->qscale=&quant_store[0][0];
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mpi->qstride=MBC+1;
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#endif
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return mpi;
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}
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#endif
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