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mpv/libmpcodecs/vf_lavc.c
albeu 33b62af947 Add the new -vf option wich is the same as vop in reverse order.
Syntax is we decided, so you can give the nomes or not with both
vop and vf. vf take precedence over vop.


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@9594 b3059339-0415-0410-9bf9-f77b7e298cf2
2003-03-15 18:01:02 +00:00

209 lines
5.2 KiB
C

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <inttypes.h>
#include "../config.h"
#include "../mp_msg.h"
#include "../help_mp.h"
#ifdef USE_LIBAVCODEC
#include "img_format.h"
#include "mp_image.h"
#include "vf.h"
//#include "../libvo/fastmemcpy.h"
#ifdef USE_LIBAVCODEC_SO
#include <ffmpeg/avcodec.h>
#else
#include "libavcodec/avcodec.h"
#endif
#if LIBAVCODEC_BUILD < 4641
#error we dont 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
extern int avcodec_inited;
struct vf_priv_s {
unsigned char* outbuf;
int outbuf_size;
AVCodecContext* context;
AVFrame* pic;
AVCodec* codec;
vo_mpegpes_t pes;
};
#define lavc_venc_context (*vf->priv->context)
//===========================================================================//
static int config(struct vf_instance_s* vf,
int width, int height, int d_width, int d_height,
unsigned int flags, unsigned int outfmt){
if(vf_next_query_format(vf,IMGFMT_MPEGPES)<=0) return 0;
lavc_venc_context.width = width;
lavc_venc_context.height = height;
if(!lavc_venc_context.frame_rate){
// guess FPS:
switch(height){
case 240:
case 480:
#if LIBAVCODEC_BUILD >= 4662
lavc_venc_context.frame_rate = 30000;
lavc_venc_context.frame_rate_base= 1001;
#else
lavc_venc_context.frame_rate=29.97*FRAME_RATE_BASE; // NTSC
#endif
break;
case 576:
case 288:
default:
#if LIBAVCODEC_BUILD >= 4662
lavc_venc_context.frame_rate = 25;
lavc_venc_context.frame_rate_base= 1;
#else
lavc_venc_context.frame_rate=25*FRAME_RATE_BASE; // PAL
#endif
break;
// lavc_venc_context.frame_rate=vo_fps*FRAME_RATE_BASE; // same as src
}
}
if(vf->priv->outbuf) free(vf->priv->outbuf);
vf->priv->outbuf_size=10000+width*height; // must be enough!
vf->priv->outbuf = malloc(vf->priv->outbuf_size);
if (avcodec_open(&lavc_venc_context, vf->priv->codec) != 0) {
mp_msg(MSGT_MENCODER,MSGL_ERR,MSGTR_CantOpenCodec);
return 0;
}
if (lavc_venc_context.codec->encode == NULL) {
mp_msg(MSGT_MENCODER,MSGL_ERR,"avcodec init failed (ctx->codec->encode == NULL)!\n");
return 0;
}
return vf_next_config(vf,width,height,d_width,d_height,flags,IMGFMT_MPEGPES);
}
static int put_image(struct vf_instance_s* vf, mp_image_t *mpi){
mp_image_t* dmpi;
int out_size;
AVFrame *pic= vf->priv->pic;
pic->data[0]=mpi->planes[0];
pic->data[1]=mpi->planes[1];
pic->data[2]=mpi->planes[2];
pic->linesize[0]=mpi->stride[0];
pic->linesize[1]=mpi->stride[1];
pic->linesize[2]=mpi->stride[2];
out_size = avcodec_encode_video(&lavc_venc_context,
vf->priv->outbuf, vf->priv->outbuf_size, pic);
if(out_size<=0) return 1;
dmpi=vf_get_image(vf->next,IMGFMT_MPEGPES,
MP_IMGTYPE_EXPORT, 0,
mpi->w, mpi->h);
vf->priv->pes.data=vf->priv->outbuf;
vf->priv->pes.size=out_size;
vf->priv->pes.id=0x1E0;
vf->priv->pes.timestamp=-1; // dunno
dmpi->planes[0]=(unsigned char*)&vf->priv->pes;
return vf_next_put_image(vf,dmpi);
}
//===========================================================================//
static int query_format(struct vf_instance_s* vf, unsigned int fmt){
switch(fmt){
case IMGFMT_YV12:
case IMGFMT_I420:
case IMGFMT_IYUV:
return (vf_next_query_format(vf,IMGFMT_MPEGPES) & (~(VFCAP_CSP_SUPPORTED_BY_HW|VFCAP_ACCEPT_STRIDE)));
}
return 0;
}
static int open(vf_instance_t *vf, char* args){
int p_quality=0;
float p_fps=0;
vf->config=config;
vf->put_image=put_image;
vf->query_format=query_format;
vf->priv=malloc(sizeof(struct vf_priv_s));
memset(vf->priv,0,sizeof(struct vf_priv_s));
if (!avcodec_inited){
avcodec_init();
avcodec_register_all();
avcodec_inited=1;
}
vf->priv->codec = (AVCodec *)avcodec_find_encoder_by_name("mpeg1video");
if (!vf->priv->codec) {
mp_msg(MSGT_MENCODER,MSGL_ERR,MSGTR_MissingLAVCcodec, "mpeg1video");
return 0;
}
vf->priv->context=avcodec_alloc_context();
#if LIBAVCODEC_BUILD >= 4645
vf->priv->pic = avcodec_alloc_frame();
#else
vf->priv->pic = avcodec_alloc_picture();
#endif
// TODO: parse args ->
if(args) sscanf(args, "%d:%f", &p_quality, &p_fps);
if(p_quality<32){
// fixed qscale
lavc_venc_context.flags = CODEC_FLAG_QSCALE;
vf->priv->pic->quality = (p_quality<1) ? 1 : p_quality;
} else {
// fixed bitrate (in kbits)
lavc_venc_context.bit_rate = 1000*p_quality;
}
#if LIBAVCODEC_BUILD >= 4662
lavc_venc_context.frame_rate_base = 1000*1001;
lavc_venc_context.frame_rate = (p_fps<1.0) ? 0 : (p_fps * lavc_venc_context.frame_rate_base);
#else
lavc_venc_context.frame_rate = (p_fps<1.0) ? 0 : (p_fps * FRAME_RATE_BASE);
#endif
lavc_venc_context.gop_size = 0; // I-only
return 1;
}
vf_info_t vf_info_lavc = {
"realtime mpeg1 encoding with libavcodec",
"lavc",
"A'rpi",
"",
open,
NULL
};
//===========================================================================//
#endif