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mpv/libmpcodecs/vd_ffmpeg.c
henry c0e54fd248 malloc padding to avoid access beyond allocated memory 
Credits to Mikulas Patocka (mikulas at artax karlin mff cuni cz)


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@17227 b3059339-0415-0410-9bf9-f77b7e298cf2
2005-12-19 19:38:28 +00:00

1126 lines
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#include <stdio.h>
#include <stdlib.h>
#include <assert.h>
#include <time.h>
#include "config.h"
#include "mp_msg.h"
#include "help_mp.h"
#ifdef USE_LIBAVCODEC
#include "bswap.h"
#include "vd_internal.h"
static vd_info_t info = {
"FFmpeg's libavcodec codec family",
"ffmpeg",
"A'rpi",
"A'rpi, Michael, Alex",
"native codecs (http://ffmpeg.sf.net/)"
};
LIBVD_EXTERN(ffmpeg)
#ifdef USE_LIBAVCODEC_SO
#include <ffmpeg/avcodec.h>
#else
#include "libavcodec/avcodec.h"
#endif
#if LIBAVCODEC_BUILD < 4641
#error we do not support libavcodec prior to build 4641, get the latest libavcodec CVS
#endif
#if LIBAVCODEC_BUILD < 4645
#warning your version of libavcodec is old, u might want to get a newer one
#endif
#if LIBAVCODEC_BUILD < 4645
#define AVFrame AVVideoFrame
#define coded_frame coded_picture
#endif
#if LIBAVCODEC_BUILD < 4654
#define PIX_FMT_RGB24 PIX_FMT_BGR24
#define PIX_FMT_RGBA32 PIX_FMT_BGRA32
#endif
#if LIBAVCODEC_BUILD < 4672
#undef HAVE_XVMC
#endif
#ifdef HAVE_XVMC
#include "xvmc_render.h"
#endif
int avcodec_inited=0;
typedef struct {
AVCodecContext *avctx;
AVFrame *pic;
float last_aspect;
int do_slices;
int do_dr1;
int vo_inited;
int best_csp;
int b_age;
int ip_age[2];
int qp_stat[32];
double qp_sum;
double inv_qp_sum;
int ip_count;
int b_count;
} vd_ffmpeg_ctx;
//#ifdef FF_POSTPROCESS
//unsigned int lavc_pp=0;
//#endif
#include "m_option.h"
static int get_buffer(AVCodecContext *avctx, AVFrame *pic);
static void release_buffer(AVCodecContext *avctx, AVFrame *pic);
static enum PixelFormat get_format(struct AVCodecContext * avctx,
const enum PixelFormat * pix_fmt);
#ifdef HAVE_XVMC
static int mc_get_buffer(AVCodecContext *avctx, AVFrame *pic);
static void mc_release_buffer(AVCodecContext *avctx, AVFrame *pic);
static void mc_render_slice(struct AVCodecContext *s,
AVFrame *src, int offset[4],
int y, int type, int height);
#endif
static int lavc_param_workaround_bugs= FF_BUG_AUTODETECT;
static int lavc_param_error_resilience=2;
static int lavc_param_error_concealment=3;
static int lavc_param_gray=0;
static int lavc_param_vstats=0;
static int lavc_param_idct_algo=0;
static int lavc_param_debug=0;
static int lavc_param_vismv=0;
static int lavc_param_skip_top=0;
static int lavc_param_skip_bottom=0;
static int lavc_param_fast=0;
static int lavc_param_lowres=0;
static char *lavc_param_lowres_str=NULL;
#if LIBAVCODEC_BUILD >= 4758
static char *lavc_param_skip_loop_filter_str = NULL;
static char *lavc_param_skip_idct_str = NULL;
static char *lavc_param_skip_frame_str = NULL;
#endif
static int lavc_param_threads=1;
static int lavc_param_bitexact=0;
m_option_t lavc_decode_opts_conf[]={
{"bug", &lavc_param_workaround_bugs, CONF_TYPE_INT, CONF_RANGE, -1, 999999, NULL},
{"er", &lavc_param_error_resilience, CONF_TYPE_INT, CONF_RANGE, 0, 99, NULL},
{"gray", &lavc_param_gray, CONF_TYPE_FLAG, 0, 0, CODEC_FLAG_PART, NULL},
{"idct", &lavc_param_idct_algo, CONF_TYPE_INT, CONF_RANGE, 0, 99, NULL},
{"ec", &lavc_param_error_concealment, CONF_TYPE_INT, CONF_RANGE, 0, 99, NULL},
{"vstats", &lavc_param_vstats, CONF_TYPE_FLAG, 0, 0, 1, NULL},
{"debug", &lavc_param_debug, CONF_TYPE_INT, CONF_RANGE, 0, 9999999, NULL},
{"vismv", &lavc_param_vismv, CONF_TYPE_INT, CONF_RANGE, 0, 9999999, NULL},
{"st", &lavc_param_skip_top, CONF_TYPE_INT, CONF_RANGE, 0, 999, NULL},
{"sb", &lavc_param_skip_bottom, CONF_TYPE_INT, CONF_RANGE, 0, 999, NULL},
#ifdef CODEC_FLAG2_FAST
{"fast", &lavc_param_fast, CONF_TYPE_FLAG, 0, 0, CODEC_FLAG2_FAST, NULL},
#endif
{"lowres", &lavc_param_lowres_str, CONF_TYPE_STRING, 0, 0, 0, NULL},
#if LIBAVCODEC_BUILD >= 4758
{"skiploopfilter", &lavc_param_skip_loop_filter_str, CONF_TYPE_STRING, 0, 0, 0, NULL},
{"skipidct", &lavc_param_skip_idct_str, CONF_TYPE_STRING, 0, 0, 0, NULL},
{"skipframe", &lavc_param_skip_frame_str, CONF_TYPE_STRING, 0, 0, 0, NULL},
#endif
{"threads", &lavc_param_threads, CONF_TYPE_INT, CONF_RANGE, 1, 8, NULL},
{"bitexact", &lavc_param_bitexact, CONF_TYPE_FLAG, 0, 0, CODEC_FLAG_BITEXACT, NULL},
{NULL, NULL, 0, 0, 0, 0, NULL}
};
#if LIBAVCODEC_BUILD >= 4758
static enum AVDiscard str2AVDiscard(char *str) {
if (!str)
return AVDISCARD_DEFAULT;
if (strcasecmp(str, "none") == 0)
return AVDISCARD_NONE;
if (strcasecmp(str, "default") == 0)
return AVDISCARD_DEFAULT;
if (strcasecmp(str, "nonref") == 0)
return AVDISCARD_NONREF;
if (strcasecmp(str, "bidir") == 0)
return AVDISCARD_BIDIR;
if (strcasecmp(str, "nonkey") == 0)
return AVDISCARD_NONKEY;
if (strcasecmp(str, "all") == 0)
return AVDISCARD_ALL;
mp_msg(MSGT_DECVIDEO, MSGL_ERR, "Unknown discard value %s\n", str);
return AVDISCARD_DEFAULT;
}
#endif
// to set/get/query special features/parameters
static int control(sh_video_t *sh,int cmd,void* arg,...){
vd_ffmpeg_ctx *ctx = sh->context;
AVCodecContext *avctx = ctx->avctx;
switch(cmd){
case VDCTRL_QUERY_FORMAT:
{
int format =(*((int*)arg));
if( format == ctx->best_csp ) return CONTROL_TRUE;//supported
// possible conversions:
switch( format ){
case IMGFMT_YV12:
case IMGFMT_IYUV:
case IMGFMT_I420:
// "converted" using pointer/stride modification
if(avctx->pix_fmt==PIX_FMT_YUV420P) return CONTROL_TRUE;// u/v swap
if(avctx->pix_fmt==PIX_FMT_YUV422P && !ctx->do_dr1) return CONTROL_TRUE;// half stride
break;
#ifdef HAVE_XVMC
case IMGFMT_XVMC_IDCT_MPEG2:
case IMGFMT_XVMC_MOCO_MPEG2:
if(avctx->pix_fmt==PIX_FMT_XVMC_MPEG2_IDCT) return CONTROL_TRUE;
#endif
}
return CONTROL_FALSE;
}
break;
case VDCTRL_RESYNC_STREAM:
avcodec_flush_buffers(avctx);
return CONTROL_TRUE;
}
return CONTROL_UNKNOWN;
}
// init driver
static int init(sh_video_t *sh){
AVCodecContext *avctx;
vd_ffmpeg_ctx *ctx;
AVCodec *lavc_codec;
#if LIBAVCODEC_BUILD >= 4722
int lowres_w=0;
#endif
int do_vis_debug= lavc_param_vismv || (lavc_param_debug&(FF_DEBUG_VIS_MB_TYPE|FF_DEBUG_VIS_QP));
if(!avcodec_inited){
avcodec_init();
avcodec_register_all();
avcodec_inited=1;
}
ctx = sh->context = malloc(sizeof(vd_ffmpeg_ctx));
if (!ctx)
return(0);
memset(ctx, 0, sizeof(vd_ffmpeg_ctx));
lavc_codec = (AVCodec *)avcodec_find_decoder_by_name(sh->codec->dll);
if(!lavc_codec){
mp_msg(MSGT_DECVIDEO,MSGL_ERR,MSGTR_MissingLAVCcodec,sh->codec->dll);
return 0;
}
if(vd_use_slices && (lavc_codec->capabilities&CODEC_CAP_DRAW_HORIZ_BAND) && !do_vis_debug)
ctx->do_slices=1;
if(lavc_codec->capabilities&CODEC_CAP_DR1 && !do_vis_debug && lavc_codec->id != CODEC_ID_H264)
ctx->do_dr1=1;
ctx->b_age= ctx->ip_age[0]= ctx->ip_age[1]= 256*256*256*64;
ctx->ip_count= ctx->b_count= 0;
#if LIBAVCODEC_BUILD >= 4645
ctx->pic = avcodec_alloc_frame();
#else
ctx->pic = avcodec_alloc_picture();
#endif
ctx->avctx = avcodec_alloc_context();
avctx = ctx->avctx;
#if LIBAVCODEC_BUILD >= 4691 && LIBAVCODEC_BUILD <= 4692
if(lavc_codec->capabilities&CODEC_CAP_CR)
avctx->cr_available = 1;
#endif
#ifdef HAVE_XVMC
#ifdef CODEC_CAP_HWACCEL
if(lavc_codec->capabilities & CODEC_CAP_HWACCEL){
#else
if(lavc_codec->id == CODEC_ID_MPEG2VIDEO_XVMC){
#endif
printf("vd_ffmpeg: XVMC accelerated codec\n");
assert(ctx->do_dr1);//these are must to!
assert(ctx->do_slices); //it is (vo_)ffmpeg bug if this fails
avctx->flags|= CODEC_FLAG_EMU_EDGE;//do i need that??!!
avctx->get_format= get_format;//for now only this decoder will use it
avctx->get_buffer= mc_get_buffer;
avctx->release_buffer= mc_release_buffer;
avctx->draw_horiz_band = mc_render_slice;
avctx->slice_flags=SLICE_FLAG_CODED_ORDER|SLICE_FLAG_ALLOW_FIELD;
}else
#endif
if(ctx->do_dr1){
avctx->flags|= CODEC_FLAG_EMU_EDGE;
avctx->get_buffer= get_buffer;
avctx->release_buffer= release_buffer;
#if LIBAVCODEC_BUILD >= 4693
avctx->reget_buffer= get_buffer;
#endif
}
#ifdef CODEC_FLAG_NOT_TRUNCATED
avctx->flags|= CODEC_FLAG_NOT_TRUNCATED;
#endif
avctx->flags|= lavc_param_bitexact;
avctx->width = sh->disp_w;
avctx->height= sh->disp_h;
avctx->workaround_bugs= lavc_param_workaround_bugs;
avctx->error_resilience= lavc_param_error_resilience;
if(lavc_param_gray) avctx->flags|= CODEC_FLAG_GRAY;
#ifdef CODEC_FLAG2_FAST
avctx->flags2|= lavc_param_fast;
#endif
avctx->codec_tag= sh->format;
#if LIBAVCODEC_BUILD >= 4679
avctx->stream_codec_tag= sh->video.fccHandler;
#endif
avctx->idct_algo= lavc_param_idct_algo;
avctx->error_concealment= lavc_param_error_concealment;
#if LIBAVCODEC_BUILD >= 4642
avctx->debug= lavc_param_debug;
if (lavc_param_debug)
av_log_set_level(AV_LOG_DEBUG);
#endif
#if LIBAVCODEC_BUILD >= 4698
avctx->debug_mv= lavc_param_vismv;
#endif
#if LIBAVCODEC_BUILD >= 4717
avctx->skip_top = lavc_param_skip_top;
avctx->skip_bottom= lavc_param_skip_bottom;
#endif
#if LIBAVCODEC_BUILD >= 4722
if(lavc_param_lowres_str != NULL)
{
sscanf(lavc_param_lowres_str, "%d,%d", &lavc_param_lowres, &lowres_w);
if(lavc_param_lowres < 1 || lavc_param_lowres > 16 || (lowres_w > 0 && avctx->width < lowres_w))
lavc_param_lowres = 0;
avctx->lowres = lavc_param_lowres;
}
#endif
#if LIBAVCODEC_BUILD >= 4758
avctx->skip_loop_filter = str2AVDiscard(lavc_param_skip_loop_filter_str);
avctx->skip_idct = str2AVDiscard(lavc_param_skip_idct_str);
avctx->skip_frame = str2AVDiscard(lavc_param_skip_frame_str);
#endif
mp_dbg(MSGT_DECVIDEO,MSGL_DBG2,"libavcodec.size: %d x %d\n",avctx->width,avctx->height);
/* AVRn stores huffman table in AVI header */
/* Pegasus MJPEG stores it also in AVI header, but it uses the common
MJPG fourcc :( */
if (sh->bih && (sh->bih->biSize != sizeof(BITMAPINFOHEADER)) &&
(sh->format == mmioFOURCC('A','V','R','n') ||
sh->format == mmioFOURCC('M','J','P','G')))
{
avctx->flags |= CODEC_FLAG_EXTERN_HUFF;
avctx->extradata_size = sh->bih->biSize-sizeof(BITMAPINFOHEADER);
avctx->extradata = av_mallocz(avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
memcpy(avctx->extradata, sh->bih+sizeof(BITMAPINFOHEADER),
avctx->extradata_size);
#if 0
{
int x;
uint8_t *p = avctx->extradata;
for (x=0; x<avctx->extradata_size; x++)
printf("[%x] ", p[x]);
printf("\n");
}
#endif
}
if( sh->format == mmioFOURCC('R', 'V', '1', '0')
|| sh->format == mmioFOURCC('R', 'V', '1', '3')
|| sh->format == mmioFOURCC('R', 'V', '2', '0')
|| sh->format == mmioFOURCC('R', 'V', '3', '0')
|| sh->format == mmioFOURCC('R', 'V', '4', '0')
){
avctx->extradata_size= 8;
avctx->extradata = av_mallocz(avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
if(sh->bih->biSize!=sizeof(*sh->bih)+8){
/* only 1 packet per frame & sub_id from fourcc */
((uint32_t*)avctx->extradata)[0] = 0;
avctx->sub_id=
((uint32_t*)avctx->extradata)[1] =
(sh->format == mmioFOURCC('R', 'V', '1', '3')) ? 0x10003001 : 0x10000000;
} else {
/* has extra slice header (demux_rm or rm->avi streamcopy) */
unsigned int* extrahdr=(unsigned int*)(sh->bih+1);
((uint32_t*)avctx->extradata)[0] = be2me_32(extrahdr[0]);
avctx->sub_id= extrahdr[1];
((uint32_t*)avctx->extradata)[1] = be2me_32(extrahdr[1]);
}
// printf("%X %X %d %d\n", extrahdr[0], extrahdr[1]);
}
if (sh->bih && (sh->bih->biSize != sizeof(BITMAPINFOHEADER)) &&
(sh->format == mmioFOURCC('M','4','S','2') ||
sh->format == mmioFOURCC('M','P','4','S') ||
sh->format == mmioFOURCC('H','F','Y','U') ||
sh->format == mmioFOURCC('F','F','V','H') ||
sh->format == mmioFOURCC('W','M','V','2') ||
sh->format == mmioFOURCC('W','M','V','3') ||
sh->format == mmioFOURCC('A','S','V','1') ||
sh->format == mmioFOURCC('A','S','V','2') ||
sh->format == mmioFOURCC('V','S','S','H') ||
sh->format == mmioFOURCC('M','S','Z','H') ||
sh->format == mmioFOURCC('Z','L','I','B') ||
sh->format == mmioFOURCC('M','P','4','V') ||
sh->format == mmioFOURCC('F','L','I','C') ||
sh->format == mmioFOURCC('S','N','O','W') ||
sh->format == mmioFOURCC('a','v','c','1') ||
sh->format == mmioFOURCC('L','O','C','O') ||
sh->format == mmioFOURCC('t','h','e','o')
))
{
avctx->extradata_size = sh->bih->biSize-sizeof(BITMAPINFOHEADER);
avctx->extradata = av_mallocz(avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
memcpy(avctx->extradata, sh->bih+1, avctx->extradata_size);
}
/* Pass palette to codec */
#if LIBAVCODEC_BUILD >= 4689
if (sh->bih && (sh->bih->biBitCount <= 8)) {
avctx->palctrl = (AVPaletteControl*)calloc(1,sizeof(AVPaletteControl));
avctx->palctrl->palette_changed = 1;
if (sh->bih->biSize-sizeof(BITMAPINFOHEADER))
/* Palette size in biSize */
memcpy(avctx->palctrl->palette, sh->bih+1,
min(sh->bih->biSize-sizeof(BITMAPINFOHEADER), AVPALETTE_SIZE));
else
/* Palette size in biClrUsed */
memcpy(avctx->palctrl->palette, sh->bih+1,
min(sh->bih->biClrUsed * 4, AVPALETTE_SIZE));
}
#endif
if (sh->ImageDesc &&
sh->format == mmioFOURCC('S','V','Q','3')){
avctx->extradata_size = (*(int*)sh->ImageDesc) - sizeof(int);
avctx->extradata = av_mallocz(avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
memcpy(avctx->extradata, ((int*)sh->ImageDesc)+1, avctx->extradata_size);
}
if(sh->bih)
avctx->bits_per_sample= sh->bih->biBitCount;
#if LIBAVCODEC_BUILD >= 4716
if(lavc_param_threads > 1)
avcodec_thread_init(avctx, lavc_param_threads);
#endif
/* open it */
if (avcodec_open(avctx, lavc_codec) < 0) {
mp_msg(MSGT_DECVIDEO,MSGL_ERR, MSGTR_CantOpenCodec);
return 0;
}
mp_msg(MSGT_DECVIDEO,MSGL_V,"INFO: libavcodec init OK!\n");
ctx->last_aspect=-3;
return 1; //mpcodecs_config_vo(sh,sh->disp_w,sh->disp_h,IMGFMT_YV12);
}
// uninit driver
static void uninit(sh_video_t *sh){
vd_ffmpeg_ctx *ctx = sh->context;
AVCodecContext *avctx = ctx->avctx;
if(lavc_param_vstats){
int i;
for(i=1; i<32; i++){
printf("QP: %d, count: %d\n", i, ctx->qp_stat[i]);
}
printf("Arithmetic mean of QP: %2.4f, Harmonic mean of QP: %2.4f\n",
ctx->qp_sum / avctx->coded_frame->coded_picture_number,
1.0/(ctx->inv_qp_sum / avctx->coded_frame->coded_picture_number)
);
}
if (avcodec_close(avctx) < 0)
mp_msg(MSGT_DECVIDEO,MSGL_ERR, MSGTR_CantCloseCodec);
av_freep(&avctx->extradata);
#if LIBAVCODEC_BUILD >= 4689
av_freep(&avctx->palctrl);
#endif
av_freep(&avctx->slice_offset);
av_freep(&avctx);
av_freep(&ctx->pic);
if (ctx)
free(ctx);
}
static void draw_slice(struct AVCodecContext *s,
#if LIBAVCODEC_BUILD >= 4670
AVFrame *src, int offset[4],
#else
uint8_t **src, int linesize,
#endif
int y, int type, int height){
sh_video_t * sh = s->opaque;
int start=0, i;
int width= s->width;
int skip_stride= ((width<<lavc_param_lowres)+15)>>4;
uint8_t *skip= &s->coded_frame->mbskip_table[(y>>4)*skip_stride];
int threshold= s->coded_frame->age;
#if LIBAVCODEC_BUILD >= 4670
uint8_t *source[3]= {src->data[0] + offset[0], src->data[1] + offset[1], src->data[2] + offset[2]};
#else
int stride[3];
stride[0]=linesize;
if(s->coded_frame->linesize[1]){
stride[1]= s->coded_frame->linesize[1];
stride[2]= s->coded_frame->linesize[2];
}else
stride[1]=stride[2]=stride[0]/2;
#endif
#if 0
if(s->pict_type!=B_TYPE){
for(i=0; i*16<width+16; i++){
if(i*16>=width || skip[i]>=threshold){
if(start==i) start++;
else{
uint8_t *src2[3]= {src[0] + start*16,
src[1] + start*8,
src[2] + start*8};
//printf("%2d-%2d x %d\n", start, i, y);
mpcodecs_draw_slice (sh,src2, stride, (i-start)*16, height, start*16, y);
start= i+1;
}
}
}
}else
#endif
if (y < sh->disp_h) {
#if LIBAVCODEC_BUILD >= 4670
mpcodecs_draw_slice (sh, source, src->linesize, sh->disp_w, (y+height)<=sh->disp_h?height:sh->disp_h-y, 0, y);
#else
mpcodecs_draw_slice (sh,src, stride, sh->disp_w, (y+height)<=sh->disp_h?height:sh->disp_h-y, 0, y);
#endif
}
}
static int init_vo(sh_video_t *sh, enum PixelFormat pix_fmt){
vd_ffmpeg_ctx *ctx = sh->context;
AVCodecContext *avctx = ctx->avctx;
#if LIBAVCODEC_BUILD >= 4687
float aspect= av_q2d(avctx->sample_aspect_ratio) * avctx->width / avctx->height;
#else
float aspect= avctx->aspect_ratio;
#endif
int width, height;
width = avctx->width;
height = avctx->height;
// HACK!
// if sh->ImageDesc is non-NULL, it means we decode QuickTime(tm) video.
// use dimensions from BIH to avoid black borders at the right and bottom.
if (sh->bih && sh->ImageDesc) {
width = sh->bih->biWidth>>lavc_param_lowres;
height = sh->bih->biHeight>>lavc_param_lowres;
}
// it is possible another vo buffers to be used after vo config()
// lavc reset its buffers on width/heigh change but not on aspect change!!!
if (// aspect != ctx->last_aspect ||
width != sh->disp_w ||
height != sh->disp_h ||
!ctx->vo_inited)
{
mp_msg(MSGT_DECVIDEO, MSGL_V, "[ffmpeg] aspect_ratio: %f\n", aspect);
ctx->last_aspect = aspect;
// if(ctx->last_aspect>=0.01 && ctx->last_aspect<100)
if(sh->aspect==0.0)
sh->aspect = ctx->last_aspect;
sh->disp_w = width;
sh->disp_h = height;
switch(pix_fmt){
// YUVJ are YUV formats that use the full Y range and not just
// 16 - 235 (see colorspaces.txt).
// Currently they are all treated the same way.
case PIX_FMT_YUV410P: ctx->best_csp=IMGFMT_YVU9;break; //svq1
case PIX_FMT_YUVJ420P:
case PIX_FMT_YUV420P: ctx->best_csp=IMGFMT_YV12;break; //mpegs
case PIX_FMT_YUVJ422P:
case PIX_FMT_YUV422P: ctx->best_csp=IMGFMT_422P;break; //mjpeg / huffyuv
case PIX_FMT_YUVJ444P:
case PIX_FMT_YUV444P: ctx->best_csp=IMGFMT_444P;break; //photo jpeg
case PIX_FMT_YUV411P: ctx->best_csp=IMGFMT_411P;break; //dv ntsc
case PIX_FMT_YUV422: ctx->best_csp=IMGFMT_YUY2;break; //huffyuv perhaps in the future
case PIX_FMT_RGB24 : ctx->best_csp=IMGFMT_RGB24;break; //qtrle
case PIX_FMT_RGBA32: ctx->best_csp=IMGFMT_BGR32;break; //huffyuv / mjpeg
case PIX_FMT_BGR24 : ctx->best_csp=IMGFMT_BGR24;break; //8bps
case PIX_FMT_RGB555: ctx->best_csp=IMGFMT_BGR15;break; //rpza,cram
case PIX_FMT_RGB565: ctx->best_csp=IMGFMT_BGR16;break; //4xm
case PIX_FMT_PAL8: ctx->best_csp=IMGFMT_BGR8;break; //8bps,mrle,cram
#ifdef HAVE_XVMC
case PIX_FMT_XVMC_MPEG2_MC:ctx->best_csp=IMGFMT_XVMC_MOCO_MPEG2;break;
case PIX_FMT_XVMC_MPEG2_IDCT:ctx->best_csp=IMGFMT_XVMC_IDCT_MPEG2;break;
#endif
default:
ctx->best_csp=0;
}
if (!mpcodecs_config_vo(sh,sh->disp_w,sh->disp_h, ctx->best_csp))
return -1;
ctx->vo_inited = 1;
}
return 0;
}
static int get_buffer(AVCodecContext *avctx, AVFrame *pic){
sh_video_t * sh = avctx->opaque;
vd_ffmpeg_ctx *ctx = sh->context;
mp_image_t* mpi=NULL;
int flags= MP_IMGFLAG_ACCEPT_STRIDE | MP_IMGFLAG_PREFER_ALIGNED_STRIDE;
int type= MP_IMGTYPE_IPB;
int width= avctx->width;
int height= avctx->height;
int align=15;
//printf("get_buffer %d %d %d\n", pic->reference, ctx->ip_count, ctx->b_count);
if(avctx->pix_fmt == PIX_FMT_YUV410P)
align=63; //yes seriously, its really needed (16x16 chroma blocks in SVQ1 -> 64x64)
#if LIBAVCODEC_BUILD >= 4691
if (pic->buffer_hints) {
mp_msg(MSGT_DECVIDEO,MSGL_DBG2, "Buffer hints: %u\n", pic->buffer_hints);
type = MP_IMGTYPE_TEMP;
if (pic->buffer_hints & FF_BUFFER_HINTS_READABLE)
flags |= MP_IMGFLAG_READABLE;
if (pic->buffer_hints & FF_BUFFER_HINTS_PRESERVE) {
type = MP_IMGTYPE_STATIC;
flags |= MP_IMGFLAG_PRESERVE;
}
if (pic->buffer_hints & FF_BUFFER_HINTS_REUSABLE) {
type = MP_IMGTYPE_STATIC;
flags |= MP_IMGFLAG_PRESERVE;
}
flags|=(!avctx->hurry_up && ctx->do_slices) ?
MP_IMGFLAG_DRAW_CALLBACK:0;
mp_msg(MSGT_DECVIDEO,MSGL_DBG2, type == MP_IMGTYPE_STATIC ? "using STATIC\n" : "using TEMP\n");
} else {
#endif
if(!pic->reference){
ctx->b_count++;
flags|=(!avctx->hurry_up && ctx->do_slices) ?
MP_IMGFLAG_DRAW_CALLBACK:0;
}else{
ctx->ip_count++;
flags|= MP_IMGFLAG_PRESERVE|MP_IMGFLAG_READABLE
| (ctx->do_slices ? MP_IMGFLAG_DRAW_CALLBACK : 0);
}
#if LIBAVCODEC_BUILD >= 4691
}
#endif
if(init_vo(sh,avctx->pix_fmt) < 0){
avctx->release_buffer= avcodec_default_release_buffer;
avctx->get_buffer= avcodec_default_get_buffer;
return avctx->get_buffer(avctx, pic);
}
#if LIBAVCODEC_BUILD >= 4691
if (!pic->buffer_hints) {
#endif
if(ctx->b_count>1 || ctx->ip_count>2){
printf("DR1 failure\n");
ctx->do_dr1=0; //FIXME
avctx->get_buffer= avcodec_default_get_buffer;
return avctx->get_buffer(avctx, pic);
}
if(avctx->has_b_frames){
type= MP_IMGTYPE_IPB;
}else{
type= MP_IMGTYPE_IP;
}
mp_msg(MSGT_DECVIDEO,MSGL_DBG2, type== MP_IMGTYPE_IPB ? "using IPB\n" : "using IP\n");
#if LIBAVCODEC_BUILD >= 4691
}
#endif
mpi= mpcodecs_get_image(sh,type, flags,
(width+align)&(~align), (height+align)&(~align));
// ok, let's see what did we get:
if( mpi->flags&MP_IMGFLAG_DRAW_CALLBACK &&
!(mpi->flags&MP_IMGFLAG_DIRECT)){
// nice, filter/vo likes draw_callback :)
avctx->draw_horiz_band= draw_slice;
} else
avctx->draw_horiz_band= NULL;
#if LIBAVCODEC_BUILD >= 4689
// Palette support: libavcodec copies palette to *data[1]
if (mpi->bpp == 8)
mpi->planes[1] = av_malloc(AVPALETTE_SIZE);
#endif
pic->data[0]= mpi->planes[0];
pic->data[1]= mpi->planes[1];
pic->data[2]= mpi->planes[2];
#if 0
assert(mpi->width >= ((width +align)&(~align)));
assert(mpi->height >= ((height+align)&(~align)));
assert(mpi->stride[0] >= mpi->width);
if(mpi->imgfmt==IMGFMT_I420 || mpi->imgfmt==IMGFMT_YV12 || mpi->imgfmt==IMGFMT_IYUV){
const int y_size= mpi->stride[0] * (mpi->h-1) + mpi->w;
const int c_size= mpi->stride[1] * ((mpi->h>>1)-1) + (mpi->w>>1);
assert(mpi->planes[0] > mpi->planes[1] || mpi->planes[0] + y_size <= mpi->planes[1]);
assert(mpi->planes[0] > mpi->planes[2] || mpi->planes[0] + y_size <= mpi->planes[2]);
assert(mpi->planes[1] > mpi->planes[0] || mpi->planes[1] + c_size <= mpi->planes[0]);
assert(mpi->planes[1] > mpi->planes[2] || mpi->planes[1] + c_size <= mpi->planes[2]);
assert(mpi->planes[2] > mpi->planes[0] || mpi->planes[2] + c_size <= mpi->planes[0]);
assert(mpi->planes[2] > mpi->planes[1] || mpi->planes[2] + c_size <= mpi->planes[1]);
}
#endif
/* Note, some (many) codecs in libavcodec must have stride1==stride2 && no changes between frames
* lavc will check that and die with an error message, if its not true
*/
pic->linesize[0]= mpi->stride[0];
pic->linesize[1]= mpi->stride[1];
pic->linesize[2]= mpi->stride[2];
pic->opaque = mpi;
//printf("%X\n", (int)mpi->planes[0]);
#if 0
if(mpi->flags&MP_IMGFLAG_DIRECT)
printf("D");
else if(mpi->flags&MP_IMGFLAG_DRAW_CALLBACK)
printf("S");
else
printf(".");
#endif
if(pic->reference){
pic->age= ctx->ip_age[0];
ctx->ip_age[0]= ctx->ip_age[1]+1;
ctx->ip_age[1]= 1;
ctx->b_age++;
}else{
pic->age= ctx->b_age;
ctx->ip_age[0]++;
ctx->ip_age[1]++;
ctx->b_age=1;
}
#if LIBAVCODEC_BUILD >= 4644
pic->type= FF_BUFFER_TYPE_USER;
#endif
return 0;
}
static void release_buffer(struct AVCodecContext *avctx, AVFrame *pic){
mp_image_t* mpi= pic->opaque;
sh_video_t * sh = avctx->opaque;
vd_ffmpeg_ctx *ctx = sh->context;
int i;
//printf("release buffer %d %d %d\n", mpi ? mpi->flags&MP_IMGFLAG_PRESERVE : -99, ctx->ip_count, ctx->b_count);
if(ctx->ip_count <= 2 && ctx->b_count<=1){
if(mpi->flags&MP_IMGFLAG_PRESERVE)
ctx->ip_count--;
else
ctx->b_count--;
}
// Palette support: free palette buffer allocated in get_buffer
if ( mpi && (mpi->bpp == 8))
av_freep(&mpi->planes[1]);
#if LIBAVCODEC_BUILD >= 4644
if(pic->type!=FF_BUFFER_TYPE_USER){
avcodec_default_release_buffer(avctx, pic);
return;
}
#endif
for(i=0; i<4; i++){
pic->data[i]= NULL;
}
//printf("R%X %X\n", pic->linesize[0], pic->data[0]);
}
// copypaste from demux_real.c - it should match to get it working!
//FIXME put into some header
typedef struct dp_hdr_s {
uint32_t chunks; // number of chunks
uint32_t timestamp; // timestamp from packet header
uint32_t len; // length of actual data
uint32_t chunktab; // offset to chunk offset array
} dp_hdr_t;
// decode a frame
static mp_image_t* decode(sh_video_t *sh,void* data,int len,int flags){
int got_picture=0;
int ret;
vd_ffmpeg_ctx *ctx = sh->context;
AVFrame *pic= ctx->pic;
AVCodecContext *avctx = ctx->avctx;
mp_image_t* mpi=NULL;
int dr1= ctx->do_dr1;
unsigned char *buf = NULL;
if(len<=0) return NULL; // skipped frame
#if LIBAVCODEC_BUILD < 4707
#ifdef HAVE_XVMC
if( !avctx->xvmc_acceleration )
#endif
#else
//ffmpeg interlace (mpeg2) bug have been fixed. no need of -noslices
if (!dr1)
#endif
avctx->draw_horiz_band=NULL;
avctx->opaque=sh;
if(ctx->vo_inited && !(flags&3) && !dr1){
mpi=mpcodecs_get_image(sh, MP_IMGTYPE_EXPORT, MP_IMGFLAG_PRESERVE |
(ctx->do_slices?MP_IMGFLAG_DRAW_CALLBACK:0),
sh->disp_w, sh->disp_h);
if(mpi && mpi->flags&MP_IMGFLAG_DRAW_CALLBACK){
// vd core likes slices!
avctx->draw_horiz_band=draw_slice;
}
}
avctx->hurry_up=(flags&3)?((flags&2)?2:1):0;
// if(sh->ds->demuxer->type == DEMUXER_TYPE_REAL){
if( sh->format == mmioFOURCC('R', 'V', '1', '0')
|| sh->format == mmioFOURCC('R', 'V', '1', '3')
|| sh->format == mmioFOURCC('R', 'V', '2', '0')
|| sh->format == mmioFOURCC('R', 'V', '3', '0')
|| sh->format == mmioFOURCC('R', 'V', '4', '0'))
if(sh->bih->biSize==sizeof(*sh->bih)+8){
int i;
dp_hdr_t *hdr= (dp_hdr_t*)data;
if(avctx->slice_offset==NULL)
avctx->slice_offset= av_malloc(sizeof(int)*1000);
// for(i=0; i<25; i++) printf("%02X ", ((uint8_t*)data)[i]);
avctx->slice_count= hdr->chunks+1;
for(i=0; i<avctx->slice_count; i++)
avctx->slice_offset[i]= ((uint32_t*)(data+hdr->chunktab))[2*i+1];
len=hdr->len;
data+= sizeof(dp_hdr_t);
}
mp_msg(MSGT_DECVIDEO, MSGL_DBG2, "vd_ffmpeg data: %04x, %04x, %04x, %04x\n",
((int *)data)[0], ((int *)data)[1], ((int *)data)[2], ((int *)data)[3]);
ret = avcodec_decode_video(avctx, pic,
&got_picture, data, len);
dr1= ctx->do_dr1;
if(ret<0) mp_msg(MSGT_DECVIDEO,MSGL_WARN, "Error while decoding frame!\n");
//printf("repeat: %d\n", pic->repeat_pict);
//-- vstats generation
#if LIBAVCODEC_BUILD >= 4643
while(lavc_param_vstats){ // always one time loop
static FILE *fvstats=NULL;
char filename[20];
static long long int all_len=0;
static int frame_number=0;
static double all_frametime=0.0;
AVFrame *pic= avctx->coded_frame;
double quality=0.0;
if(!fvstats) {
time_t today2;
struct tm *today;
today2 = time(NULL);
today = localtime(&today2);
sprintf(filename, "vstats_%02d%02d%02d.log", today->tm_hour,
today->tm_min, today->tm_sec);
fvstats = fopen(filename,"w");
if(!fvstats) {
perror("fopen");
lavc_param_vstats=0; // disable block
break;
/*exit(1);*/
}
}
// average MB quantizer
{
int x, y;
int w = ((avctx->width << lavc_param_lowres)+15) >> 4;
int h = ((avctx->height << lavc_param_lowres)+15) >> 4;
int8_t *q = pic->qscale_table;
for( y = 0; y < h; y++ ) {
for( x = 0; x < w; x++ )
quality += (double)*(q+x);
q += pic->qstride;
}
quality /= w * h;
}
all_len+=len;
all_frametime+=sh->frametime;
fprintf(fvstats, "frame= %5d q= %2.2f f_size= %6d s_size= %8.0fkB ",
++frame_number, quality, len, (double)all_len/1024);
fprintf(fvstats, "time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
all_frametime, (double)(len*8)/sh->frametime/1000.0,
(double)(all_len*8)/all_frametime/1000.0);
switch(pic->pict_type){
case FF_I_TYPE:
fprintf(fvstats, "type= I\n");
break;
case FF_P_TYPE:
fprintf(fvstats, "type= P\n");
break;
case FF_S_TYPE:
fprintf(fvstats, "type= S\n");
break;
case FF_B_TYPE:
fprintf(fvstats, "type= B\n");
break;
default:
fprintf(fvstats, "type= ? (%d)\n", pic->pict_type);
break;
}
ctx->qp_stat[(int)(quality+0.5)]++;
ctx->qp_sum += quality;
ctx->inv_qp_sum += 1.0/(double)quality;
break;
}
#endif
//--
if(!got_picture) return NULL; // skipped image
if(init_vo(sh,avctx->pix_fmt) < 0) return NULL;
if(dr1 && pic->opaque){
mpi= (mp_image_t*)pic->opaque;
}
if(!mpi)
mpi=mpcodecs_get_image(sh, MP_IMGTYPE_EXPORT, MP_IMGFLAG_PRESERVE,
avctx->width, avctx->height);
if(!mpi){ // temporary!
printf("couldn't allocate image for codec\n");
return NULL;
}
if(!dr1){
mpi->planes[0]=pic->data[0];
mpi->planes[1]=pic->data[1];
mpi->planes[2]=pic->data[2];
mpi->stride[0]=pic->linesize[0];
mpi->stride[1]=pic->linesize[1];
mpi->stride[2]=pic->linesize[2];
}
if (!mpi->planes[0])
return NULL;
if(avctx->pix_fmt==PIX_FMT_YUV422P && mpi->chroma_y_shift==1){
// we have 422p but user wants 420p
mpi->stride[1]*=2;
mpi->stride[2]*=2;
}
/* to comfirm with newer lavc style */
mpi->qscale =pic->qscale_table;
mpi->qstride=pic->qstride;
mpi->pict_type=pic->pict_type;
#if LIBAVCODEC_BUILD >= 4664
mpi->qscale_type= pic->qscale_type;
#endif
#if LIBAVCODEC_BUILD >= 4697
mpi->fields = MP_IMGFIELD_ORDERED;
if(pic->interlaced_frame) mpi->fields |= MP_IMGFIELD_INTERLACED;
if(pic->top_field_first ) mpi->fields |= MP_IMGFIELD_TOP_FIRST;
if(pic->repeat_pict == 1) mpi->fields |= MP_IMGFIELD_REPEAT_FIRST;
#endif
return mpi;
}
static enum PixelFormat get_format(struct AVCodecContext * avctx,
const enum PixelFormat * fmt){
sh_video_t * sh = avctx->opaque;
vd_ffmpeg_ctx *ctx = sh->context;
int i;
#ifdef HAVE_XVMC
if(avctx->xvmc_acceleration){
avctx->get_buffer= mc_get_buffer;
avctx->release_buffer= mc_release_buffer;
avctx->draw_horiz_band = mc_render_slice;
printf("vd_ffmpeg: XVMC accelerated MPEG2\n");
assert(ctx->do_dr1);//these are must to!
assert(ctx->do_slices); //it is (vo_)ffmpeg bug if this fails
avctx->flags|= CODEC_FLAG_EMU_EDGE;//do i need that??!!
avctx->slice_flags=SLICE_FLAG_CODED_ORDER|SLICE_FLAG_ALLOW_FIELD;
}
#endif
for(i=0;fmt[i]!=-1;i++){
printf("trying pixfmt=%d\n",i);
if( init_vo(sh,fmt[i]) >= 0)
return fmt[i];
}
return fmt[0];
}
#ifdef HAVE_XVMC
static int mc_get_buffer(AVCodecContext *avctx, AVFrame *pic){
sh_video_t * sh = avctx->opaque;
vd_ffmpeg_ctx *ctx = sh->context;
mp_image_t* mpi=NULL;
xvmc_render_state_t * render;
int flags= MP_IMGFLAG_ACCEPT_STRIDE | MP_IMGFLAG_PREFER_ALIGNED_STRIDE|
MP_IMGFLAG_DRAW_CALLBACK;
// printf("vd_ffmpeg::mc_get_buffer (xvmc) %d %d %d\n", pic->reference, ctx->ip_count, ctx->b_count);
if(!avctx->xvmc_acceleration){
printf("vd_ffmpeg::mc_get_buffer should work only with XVMC acceleration !!");
assert(0);
exit(1);
// return -1;//!!fixme check error conditions
}
assert(avctx->draw_horiz_band == mc_render_slice);
assert(avctx->release_buffer == mc_release_buffer);
if(verbose > 4)
printf("vd_ffmpeg::mc_get_buffer\n");
if(init_vo(sh,avctx->pix_fmt) < 0){
printf("vd_ffmpeg: Unexpected init_vo error\n");
exit(1);
// return -1;//!!fixme check error conditions
}
if(!pic->reference){
ctx->b_count++;
}else{
ctx->ip_count++;
flags|= MP_IMGFLAG_PRESERVE|MP_IMGFLAG_READABLE;
}
mpi= mpcodecs_get_image(sh, MP_IMGTYPE_IPB,flags ,
avctx->width, avctx->height);
if(mpi==NULL){
printf("Unrecoverable error, render buffers not taken\n");
assert(0);
exit(1);
// return -1;//!!fixme check error conditions in ffmpeg
};
if( (mpi->flags & MP_IMGFLAG_DIRECT) == 0){
printf("Only buffers allocated by vo_xvmc allowed\n");
assert(0);
exit(1);
// return -1;//!!fixme check error conditions in ffmpeg
}
pic->data[0]= mpi->planes[0];
pic->data[1]= mpi->planes[1];
pic->data[2]= mpi->planes[2];
/* Note, some (many) codecs in libavcodec must have stride1==stride2 && no changes between frames
* lavc will check that and die with an error message, if its not true
*/
pic->linesize[0]= mpi->stride[0];
pic->linesize[1]= mpi->stride[1];
pic->linesize[2]= mpi->stride[2];
pic->opaque = mpi;
if(pic->reference){
//I or P frame
pic->age= ctx->ip_age[0];
ctx->ip_age[0]= ctx->ip_age[1]+1;
ctx->ip_age[1]= 1;
ctx->b_age++;
}else{
//B frame
pic->age= ctx->b_age;
ctx->ip_age[0]++;
ctx->ip_age[1]++;
ctx->b_age=1;
}
pic->type= FF_BUFFER_TYPE_USER;
render=(xvmc_render_state_t*)mpi->priv;//same as data[2]
if(verbose > 4)
printf("vd_ffmpeg::mc_get_buffer (render=%p)\n",render);
assert(render != 0);
assert(render->magic == MP_XVMC_RENDER_MAGIC);
render->state |= MP_XVMC_STATE_PREDICTION;
return 0;
}
static void mc_release_buffer(AVCodecContext *avctx, AVFrame *pic){
mp_image_t* mpi= pic->opaque;
sh_video_t * sh = avctx->opaque;
vd_ffmpeg_ctx *ctx = sh->context;
xvmc_render_state_t * render;
int i;
if(ctx->ip_count <= 2 && ctx->b_count<=1){
if(mpi->flags&MP_IMGFLAG_PRESERVE)
ctx->ip_count--;
else
ctx->b_count--;
}
//printf("R%X %X\n", pic->linesize[0], pic->data[0]);
//mark the surface as not requared for prediction
render=(xvmc_render_state_t*)pic->data[2];//same as mpi->priv
if(verbose > 4)
printf("vd_ffmpeg::mc_release_buffer (render=%p)\n",render);
assert(render!=NULL);
assert(render->magic==MP_XVMC_RENDER_MAGIC);
render->state&=~MP_XVMC_STATE_PREDICTION;
for(i=0; i<4; i++){
pic->data[i]= NULL;
}
}
static void mc_render_slice(struct AVCodecContext *s,
AVFrame *src, int offset[4],
int y, int type, int height){
int width= s->width;
sh_video_t * sh = s->opaque;
uint8_t *source[3]= {src->data[0], src->data[1], src->data[2]};
assert(src->linesize[0]==0 && src->linesize[1]==0 && src->linesize[2]==0);
assert(offset[0]==0 && offset[1]==0 && offset[2]==0);
mpcodecs_draw_slice (sh, source, src->linesize, width, height, 0, y);
}
#endif // HAVE_XVMC
#endif
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