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2-pass encoding with libavcodec - untested 

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@5384 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
arpi 2002-03-28 23:45:33 +00:00
parent 86bb56a7dc
commit c96745660a
1 changed files with 51 additions and 0 deletions
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51
mencoder.c
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@ -1217,6 +1217,31 @@ case VCODEC_LIBAVCODEC:
lavc_venc_context.quality = lavc_param_vqscale;
}
switch(pass){
case 1:
if (VbrControl_init_2pass_vbr_analysis(passtmpfile, lavc_param_vme) == -1)
{
printf("2pass failed: filename=%s\n", passtmpfile);
pass_working = 0;
}
else
pass_working = 1;
break;
case 2:
if (VbrControl_init_2pass_vbr_encoding(passtmpfile,
lavc_venc_context.bit_rate,
lavc_venc_context.frame_rate,
100, /* crispness */
lavc_param_vme) == -1)
{
printf("2pass failed: filename=%s\n", passtmpfile);
pass_working = 0;
}
else
pass_working = 1;
break;
}
if (avcodec_open(&lavc_venc_context, lavc_venc_codec) != 0)
{
printf(MSGTR_CantOpenCodec);
@ -1654,8 +1679,34 @@ case VCODEC_LIBAVCODEC:
break;
}
if(pass==2 && pass_working){ // handle 2-pass:
lavc_venc_context.flags|=CODEC_FLAG_QSCALE; // enable VBR
lavc_venc_context.quality=VbrControl_get_quant();
#ifdef CODEC_FLAG_TYPE
lavc_venc_context.flags|=CODEC_FLAG_TYPE; // force keyframes
lavc_venc_context.key_frame=VbrControl_get_intra();
lavc_venc_context.gop_size=0x3fffffff;
#else
#error you should upgrade libavcodec... get latest CVS
#endif
out_size = avcodec_encode_video(&lavc_venc_context, mux_v->buffer, mux_v->buffer_size,
&lavc_venc_picture);
VbrControl_update_2pass_vbr_encoding(lavc_venc_context.mv_bits,
lavc_venc_context.i_tex_bits+lavc_venc_context.p_tex_bits,
8*out_size);
} else {
out_size = avcodec_encode_video(&lavc_venc_context, mux_v->buffer, mux_v->buffer_size,
&lavc_venc_picture);
if(pass==1 && pass_working){
VbrControl_update_2pass_vbr_analysis(lavc_venc_context.key_frame,
lavc_venc_context.mv_bits,
lavc_venc_context.i_tex_bits+lavc_venc_context.p_tex_bits,
8*out_size, lavc_venc_context.quality);
}
}
aviwrite_write_chunk(muxer,mux_v,muxer_f,out_size,lavc_venc_context.key_frame?0x10:0);
#endif
}