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YV12 support (using libavcodec for mpeg1-I encoding) 

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@1936 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
arpi 2001-09-22 18:50:09 +00:00
parent bcf66fcbd8
commit 566f205119
1 changed files with 173 additions and 11 deletions
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184
libvo/vo_mpegpes.c
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@ -1,4 +1,4 @@
//#define HAVE_DVB
#define HAVE_DVB
#define PES_MAX_SIZE 2048
/*
* Based on:
@ -47,6 +47,24 @@ LIBVO_EXTERN (mpegpes)
int vo_mpegpes_fd=-1;
int vo_mpegpes_fd2=-1;
#ifdef USE_LIBAVCODEC
#include "../libavcodec/avcodec.h"
static unsigned char *picture_buf=NULL;
static unsigned char *outbuf=NULL;
static int outbuf_size = 100000;
static int s_pos_x,s_pos_y;
static int d_pos_x,d_pos_y;
static AVPicture picture;
static AVCodec *codec=NULL;
static AVCodecContext codec_context;
extern int avcodec_inited;
#endif
static vo_info_t vo_info =
{
#ifdef HAVE_DVB
@ -60,7 +78,7 @@ static vo_info_t vo_info =
};
static uint32_t
init(uint32_t width, uint32_t height, uint32_t d_width, uint32_t d_height, uint32_t fullscreen, char *title, uint32_t format)
init(uint32_t s_width, uint32_t s_height, uint32_t width, uint32_t height, uint32_t fullscreen, char *title, uint32_t format)
{
#ifdef HAVE_DVB
//|O_NONBLOCK
@ -114,6 +132,92 @@ init(uint32_t width, uint32_t height, uint32_t d_width, uint32_t d_height, uint3
perror("vo_mpegpes");
return -1;
}
#endif
#ifdef USE_LIBAVCODEC
picture_buf=NULL;
if(format==IMGFMT_YV12){
int size;
if(!avcodec_inited){
avcodec_init();
avcodec_register_all();
avcodec_inited=1;
}
/* find the mpeg1 video encoder */
codec = avcodec_find_encoder(CODEC_ID_MPEG1VIDEO);
if (!codec) {
fprintf(stderr, "mpeg1 codec not found\n");
return -1;
}
memset(&codec_context,0,sizeof(codec_context));
codec_context.bit_rate=100000; // not used
codec_context.frame_rate=25*FRAME_RATE_BASE; // !!!!!
codec_context.gop_size=0; // I frames only
codec_context.flags=CODEC_FLAG_QSCALE;
codec_context.quality=2; // quality! 1..31 (1=best,slowest)
#if 0
codec_context.width=width;
codec_context.height=height;
#else
if(width<=352 && height<=288){
codec_context.width=352;
codec_context.height=288;
} else
if(width<=352 && height<=576){
codec_context.width=352;
codec_context.height=576;
} else
if(width<=480 && height<=576){
codec_context.width=480;
codec_context.height=576;
} else
if(width<=544 && height<=576){
codec_context.width=544;
codec_context.height=576;
} else {
codec_context.width=704;
codec_context.height=576;
}
#endif
d_pos_x=(codec_context.width-(int)s_width)/2;
if(d_pos_x<0){
s_pos_x=-d_pos_x;d_pos_x=0;
} else s_pos_x=0;
d_pos_y=(codec_context.height-(int)s_height)/2;
if(d_pos_y<0){
s_pos_y=-d_pos_y;d_pos_y=0;
} else s_pos_y=0;
printf("[vo] position mapping: %d;%d => %d;%d\n",s_pos_x,s_pos_y,d_pos_x,d_pos_y);
/* open it */
if (avcodec_open(&codec_context, codec) < 0) {
fprintf(stderr, "could not open codec\n");
return -1;
}
outbuf_size=10000+width*height; // must be enough!
outbuf = malloc(outbuf_size);
size = codec_context.width*codec_context.height;
picture_buf = malloc((size * 3) / 2); /* size for YUV 420 */
memset(picture_buf,0,size); // clear Y
memset(picture_buf+size,128,size/2); // clear UV
picture.data[0] = picture_buf;
picture.data[1] = picture.data[0] + size;
picture.data[2] = picture.data[1] + size / 4;
picture.linesize[0] = codec_context.width;
picture.linesize[1] = codec_context.width / 2;
picture.linesize[2] = codec_context.width / 2;
}
#endif
return 0;
}
@ -128,15 +232,6 @@ static void draw_osd(void)
{
}
static void flip_page (void)
{
}
static uint32_t draw_slice(uint8_t *srcimg[], int stride[], int w,int h,int x,int y)
{
return 0;
}
#define NFD 2
static void my_write(unsigned char* data,int len){
@ -215,16 +310,83 @@ static uint32_t draw_frame(uint8_t * src[])
return 0;
}
static void flip_page (void)
{
#ifdef USE_LIBAVCODEC
if(picture_buf){ // YV12 only:
int out_size;
static int fno=0;
/* encode the image */
out_size = avcodec_encode_video(&codec_context, outbuf, outbuf_size, &picture);
send_pes_packet(outbuf,out_size,0x1E0,fno*(90000/25));++fno;
// printf("frame size: %d \n",out_size);
}
#endif
}
static uint32_t draw_slice(uint8_t *srcimg[], int stride[], int w,int h,int x0,int y0)
{
#ifdef USE_LIBAVCODEC
int y;
unsigned char* s;
unsigned char* d;
x0+=d_pos_x;
y0+=d_pos_y;
if(w>picture.linesize[0]) w=picture.linesize[0]; // !!
// Y
s=srcimg[0]+s_pos_x+s_pos_y*stride[0];
d=picture.data[0]+x0+y0*picture.linesize[0];
for(y=0;y<h;y++){
memcpy(d,s,w);
s+=stride[0];
d+=picture.linesize[0];
}
w/=2;h/=2;x0/=2;y0/=2;
// U
s=srcimg[1]+(s_pos_x/2)+(s_pos_y/2)*stride[1];
d=picture.data[1]+x0+y0*picture.linesize[1];
for(y=0;y<h;y++){
memcpy(d,s,w);
s+=stride[1];
d+=picture.linesize[1];
}
// V
s=srcimg[2]+(s_pos_x/2)+(s_pos_y/2)*stride[2];
d=picture.data[2]+x0+y0*picture.linesize[2];
for(y=0;y<h;y++){
memcpy(d,s,w);
s+=stride[2];
d+=picture.linesize[2];
}
#endif
return 0;
}
static uint32_t
query_format(uint32_t format)
{
if(format==IMGFMT_MPEGPES) return 1;
#ifdef USE_LIBAVCODEC
if(format==IMGFMT_YV12) return 1;
#endif
return 0;
}
static void
uninit(void)
{
#ifdef USE_LIBAVCODEC
if(picture_buf){ // YV12 only:
free(outbuf);
free(picture_buf);
}
#endif
if(vo_mpegpes_fd>=0){ close(vo_mpegpes_fd);vo_mpegpes_fd=-1;}
if(vo_mpegpes_fd2>=0){ close(vo_mpegpes_fd2);vo_mpegpes_fd2=-1;}
}