mirror of
https://github.com/mpv-player/mpv
synced 2024-12-25 16:33:02 +00:00
02b199e5e9
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@17907 b3059339-0415-0410-9bf9-f77b7e298cf2
231 lines
5.9 KiB
C
231 lines
5.9 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <inttypes.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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#include "img_format.h"
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#include "mp_image.h"
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#include "vf.h"
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//#include "libvo/fastmemcpy.h"
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#ifdef USE_LIBAVCODEC_SO
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#include <ffmpeg/avcodec.h>
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#else
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#include "libavcodec/avcodec.h"
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#endif
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#if LIBAVCODEC_BUILD < 4641
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#error we do not support libavcodec prior to build 4641, get the latest libavcodec CVS
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#endif
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#if LIBAVCODEC_BUILD < 4645
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#warning your version of libavcodec is old, u might want to get a newer one
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#endif
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#if LIBAVCODEC_BUILD < 4645
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#define AVFrame AVVideoFrame
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#define coded_frame coded_picture
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#endif
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#if LIBAVCODEC_BUILD < 4684
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#define FF_QP2LAMBDA 1
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#endif
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extern int avcodec_inited;
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struct vf_priv_s {
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unsigned char* outbuf;
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int outbuf_size;
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AVCodecContext* context;
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AVFrame* pic;
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AVCodec* codec;
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vo_mpegpes_t pes;
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};
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#define lavc_venc_context (*vf->priv->context)
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//===========================================================================//
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static int config(struct vf_instance_s* vf,
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int width, int height, int d_width, int d_height,
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unsigned int flags, unsigned int outfmt){
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if(vf_next_query_format(vf,IMGFMT_MPEGPES)<=0) return 0;
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lavc_venc_context.width = width;
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lavc_venc_context.height = height;
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#if LIBAVCODEC_BUILD >= 4754
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if(!lavc_venc_context.time_base.num || !lavc_venc_context.time_base.den){
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#else
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if(!lavc_venc_context.frame_rate){
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#endif
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// guess FPS:
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switch(height){
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case 240:
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case 480:
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#if LIBAVCODEC_BUILD >= 4754
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lavc_venc_context.time_base= (AVRational){1001,30000};
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#else
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#if LIBAVCODEC_BUILD >= 4662
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lavc_venc_context.frame_rate = 30000;
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lavc_venc_context.frame_rate_base= 1001;
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#else
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lavc_venc_context.frame_rate=29.97*FRAME_RATE_BASE; // NTSC
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#endif
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#endif
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break;
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case 576:
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case 288:
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default:
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#if LIBAVCODEC_BUILD >= 4754
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lavc_venc_context.time_base= (AVRational){1,25};
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#else
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#if LIBAVCODEC_BUILD >= 4662
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lavc_venc_context.frame_rate = 25;
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lavc_venc_context.frame_rate_base= 1;
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#else
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lavc_venc_context.frame_rate=25*FRAME_RATE_BASE; // PAL
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#endif
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#endif
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break;
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// lavc_venc_context.frame_rate=vo_fps*FRAME_RATE_BASE; // same as src
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}
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}
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if(vf->priv->outbuf) free(vf->priv->outbuf);
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vf->priv->outbuf_size=10000+width*height; // must be enough!
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vf->priv->outbuf = malloc(vf->priv->outbuf_size);
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if (avcodec_open(&lavc_venc_context, vf->priv->codec) != 0) {
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mp_msg(MSGT_MENCODER,MSGL_ERR,MSGTR_CantOpenCodec);
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return 0;
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}
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if (lavc_venc_context.codec->encode == NULL) {
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mp_msg(MSGT_MENCODER,MSGL_ERR,"avcodec init failed (ctx->codec->encode == NULL)!\n");
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return 0;
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}
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return vf_next_config(vf,width,height,d_width,d_height,flags,IMGFMT_MPEGPES);
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}
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static int put_image(struct vf_instance_s* vf, mp_image_t *mpi, double pts){
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mp_image_t* dmpi;
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int out_size;
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AVFrame *pic= vf->priv->pic;
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pic->data[0]=mpi->planes[0];
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pic->data[1]=mpi->planes[1];
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pic->data[2]=mpi->planes[2];
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pic->linesize[0]=mpi->stride[0];
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pic->linesize[1]=mpi->stride[1];
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pic->linesize[2]=mpi->stride[2];
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out_size = avcodec_encode_video(&lavc_venc_context,
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vf->priv->outbuf, vf->priv->outbuf_size, pic);
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if(out_size<=0) return 1;
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dmpi=vf_get_image(vf->next,IMGFMT_MPEGPES,
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MP_IMGTYPE_EXPORT, 0,
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mpi->w, mpi->h);
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vf->priv->pes.data=vf->priv->outbuf;
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vf->priv->pes.size=out_size;
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vf->priv->pes.id=0x1E0;
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vf->priv->pes.timestamp=-1; // dunno
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dmpi->planes[0]=(unsigned char*)&vf->priv->pes;
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return vf_next_put_image(vf,dmpi, MP_NOPTS_VALUE);
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}
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//===========================================================================//
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static int query_format(struct vf_instance_s* vf, unsigned int fmt){
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switch(fmt){
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case IMGFMT_YV12:
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case IMGFMT_I420:
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case IMGFMT_IYUV:
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return (vf_next_query_format(vf,IMGFMT_MPEGPES) & (~(VFCAP_CSP_SUPPORTED_BY_HW|VFCAP_ACCEPT_STRIDE)));
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}
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return 0;
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}
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static int open(vf_instance_t *vf, char* args){
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int p_quality=0;
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float p_fps=0;
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vf->config=config;
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vf->put_image=put_image;
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vf->query_format=query_format;
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vf->priv=malloc(sizeof(struct vf_priv_s));
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memset(vf->priv,0,sizeof(struct vf_priv_s));
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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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vf->priv->codec = (AVCodec *)avcodec_find_encoder_by_name("mpeg1video");
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if (!vf->priv->codec) {
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mp_msg(MSGT_MENCODER,MSGL_ERR,MSGTR_MissingLAVCcodec, "mpeg1video");
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return 0;
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}
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vf->priv->context=avcodec_alloc_context();
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#if LIBAVCODEC_BUILD >= 4645
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vf->priv->pic = avcodec_alloc_frame();
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#else
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vf->priv->pic = avcodec_alloc_picture();
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#endif
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// TODO: parse args ->
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if(args) sscanf(args, "%d:%f", &p_quality, &p_fps);
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if(p_quality<32){
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// fixed qscale
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lavc_venc_context.flags = CODEC_FLAG_QSCALE;
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#if LIBAVCODEC_BUILD >= 4668
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lavc_venc_context.global_quality =
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#endif
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vf->priv->pic->quality = (int)(FF_QP2LAMBDA * ((p_quality<1) ? 1 : p_quality) + 0.5);
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} else {
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// fixed bitrate (in kbits)
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lavc_venc_context.bit_rate = 1000*p_quality;
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}
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#if LIBAVCODEC_BUILD >= 4754
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lavc_venc_context.time_base.num = 1000*1001;
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lavc_venc_context.time_base.den = (p_fps<1.0) ? 1000*1001*25 : (p_fps * lavc_venc_context.time_base.num);
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#else
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#if LIBAVCODEC_BUILD >= 4662
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lavc_venc_context.frame_rate_base = 1000*1001;
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lavc_venc_context.frame_rate = (p_fps<1.0) ? 0 : (p_fps * lavc_venc_context.frame_rate_base);
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#else
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lavc_venc_context.frame_rate = (p_fps<1.0) ? 0 : (p_fps * FRAME_RATE_BASE);
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#endif
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#endif
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lavc_venc_context.gop_size = 0; // I-only
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lavc_venc_context.pix_fmt= PIX_FMT_YUV420P;
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return 1;
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}
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vf_info_t vf_info_lavc = {
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"realtime mpeg1 encoding with libavcodec",
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"lavc",
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"A'rpi",
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"",
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open,
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NULL
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};
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//===========================================================================//
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