mirror of https://github.com/mpv-player/mpv
148 lines
3.8 KiB
C
148 lines
3.8 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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#ifdef USE_LIBAVCODEC
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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 <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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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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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(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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if(vf->priv->outbuf) free(vf->priv->outbuf);
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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 void put_image(struct vf_instance_s* vf, mp_image_t *mpi){
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mp_image_t* dmpi;
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int out_size;
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AVPicture lavc_venc_picture;
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lavc_venc_picture.data[0]=mpi->planes[0];
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lavc_venc_picture.data[1]=mpi->planes[1];
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lavc_venc_picture.data[2]=mpi->planes[2];
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lavc_venc_picture.linesize[0]=mpi->stride[0];
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lavc_venc_picture.linesize[1]=mpi->stride[1];
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lavc_venc_picture.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, &lavc_venc_picture);
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if(out_size<=0) return;
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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]=&vf->priv->pes;
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vf_next_put_image(vf,dmpi);
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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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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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// TODO: parse args ->
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lavc_venc_context.bit_rate = 8000000;
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lavc_venc_context.frame_rate = 25 * FRAME_RATE_BASE;
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lavc_venc_context.qmin= 1;
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lavc_venc_context.gop_size = 0; // I-only
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lavc_venc_context.flags = CODEC_FLAG_QSCALE;
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lavc_venc_context.quality = 1;
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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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};
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//===========================================================================//
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#endif
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