int ff_xvid_rate_control_init(MpegEncContext *s){
char *tmp_name;
int fd, i;
xvid_plg_create_t xvid_plg_create;
xvid_plugin_2pass2_t xvid_2pass2;
//xvid_debug=-1;
fd=ff_tempfile("xvidrc.", &tmp_name);
if (fd == -1) {
av_log(NULL, AV_LOG_ERROR, "Can't create temporary pass2 file.\n");
return -1;
}
for(i=0; i<s->rc_context.num_entries; i++){
static const char frame_types[] = " ipbs";
char tmp[256];
RateControlEntry *rce;
rce= &s->rc_context.entry[i];
snprintf(tmp, sizeof(tmp), "%c %d %d %d %d %d %d\n",
frame_types[rce->pict_type], (int)lrintf(rce->qscale / FF_QP2LAMBDA), rce->i_count, s->mb_num - rce->i_count - rce->skip_count,
rce->skip_count, (rce->i_tex_bits + rce->p_tex_bits + rce->misc_bits+7)/8, (rce->header_bits+rce->mv_bits+7)/8);
//av_log(NULL, AV_LOG_ERROR, "%s\n", tmp);
write(fd, tmp, strlen(tmp));
}
close(fd);
memset(&xvid_2pass2, 0, sizeof(xvid_2pass2));
xvid_2pass2.version= XVID_MAKE_VERSION(1,1,0);
xvid_2pass2.filename= tmp_name;
xvid_2pass2.bitrate= s->avctx->bit_rate;
xvid_2pass2.vbv_size= s->avctx->rc_buffer_size;
xvid_2pass2.vbv_maxrate= s->avctx->rc_max_rate;
xvid_2pass2.vbv_initial= s->avctx->rc_initial_buffer_occupancy;
memset(&xvid_plg_create, 0, sizeof(xvid_plg_create));
xvid_plg_create.version= XVID_MAKE_VERSION(1,1,0);
xvid_plg_create.fbase= s->avctx->time_base.den;
xvid_plg_create.fincr= s->avctx->time_base.num;
xvid_plg_create.param= &xvid_2pass2;
if(xvid_plugin_2pass2(NULL, XVID_PLG_CREATE, &xvid_plg_create, &s->rc_context.non_lavc_opaque)<0){
av_log(NULL, AV_LOG_ERROR, "xvid_plugin_2pass2 failed\n");
return -1;
}
return 0;
}
/**
* Create the private context for the encoder.
* All buffers are allocated, settings are loaded from the user,
* and the encoder context created.
*
* @param avctx AVCodecContext pointer to context
* @return Returns 0 on success, -1 on failure
*/
static av_cold int xvid_encode_init(AVCodecContext *avctx) {
int xerr, i;
int xvid_flags = avctx->flags;
struct xvid_context *x = avctx->priv_data;
uint16_t *intra, *inter;
int fd;
xvid_plugin_single_t single;
struct xvid_ff_pass1 rc2pass1;
xvid_plugin_2pass2_t rc2pass2;
xvid_gbl_init_t xvid_gbl_init;
xvid_enc_create_t xvid_enc_create;
xvid_enc_plugin_t plugins[7];
/* Bring in VOP flags from ffmpeg command-line */
x->vop_flags = XVID_VOP_HALFPEL; /* Bare minimum quality */
if( xvid_flags & CODEC_FLAG_4MV )
x->vop_flags |= XVID_VOP_INTER4V; /* Level 3 */
if( avctx->trellis
)
x->vop_flags |= XVID_VOP_TRELLISQUANT; /* Level 5 */
if( xvid_flags & CODEC_FLAG_AC_PRED )
x->vop_flags |= XVID_VOP_HQACPRED; /* Level 6 */
if( xvid_flags & CODEC_FLAG_GRAY )
x->vop_flags |= XVID_VOP_GREYSCALE;
/* Decide which ME quality setting to use */
x->me_flags = 0;
switch( avctx->me_method ) {
case ME_FULL: /* Quality 6 */
x->me_flags |= XVID_ME_EXTSEARCH16
| XVID_ME_EXTSEARCH8;
case ME_EPZS: /* Quality 4 */
x->me_flags |= XVID_ME_ADVANCEDDIAMOND8
| XVID_ME_HALFPELREFINE8
| XVID_ME_CHROMA_PVOP
| XVID_ME_CHROMA_BVOP;
case ME_LOG: /* Quality 2 */
case ME_PHODS:
case ME_X1:
x->me_flags |= XVID_ME_ADVANCEDDIAMOND16
| XVID_ME_HALFPELREFINE16;
case ME_ZERO: /* Quality 0 */
default:
break;
}
/* Decide how we should decide blocks */
switch( avctx->mb_decision ) {
case 2:
x->vop_flags |= XVID_VOP_MODEDECISION_RD;
x->me_flags |= XVID_ME_HALFPELREFINE8_RD
| XVID_ME_QUARTERPELREFINE8_RD
| XVID_ME_EXTSEARCH_RD
| XVID_ME_CHECKPREDICTION_RD;
case 1:
if( !(x->vop_flags & XVID_VOP_MODEDECISION_RD) )
x->vop_flags |= XVID_VOP_FAST_MODEDECISION_RD;
x->me_flags |= XVID_ME_HALFPELREFINE16_RD
| XVID_ME_QUARTERPELREFINE16_RD;
default:
break;
}
/* Bring in VOL flags from ffmpeg command-line */
x->vol_flags = 0;
if( xvid_flags & CODEC_FLAG_GMC ) {
x->vol_flags |= XVID_VOL_GMC;
x->me_flags |= XVID_ME_GME_REFINE;
}
if( xvid_flags & CODEC_FLAG_QPEL ) {
x->vol_flags |= XVID_VOL_QUARTERPEL;
x->me_flags |= XVID_ME_QUARTERPELREFINE16;
if( x->vop_flags & XVID_VOP_INTER4V )
x->me_flags |= XVID_ME_QUARTERPELREFINE8;
}
memset(&xvid_gbl_init, 0, sizeof(xvid_gbl_init));
xvid_gbl_init.version = XVID_VERSION;
xvid_gbl_init.debug = 0;
#if ARCH_PPC
/* Xvid's PPC support is borked, use libavcodec to detect */
#if HAVE_ALTIVEC
if (av_get_cpu_flags() & AV_CPU_FLAG_ALTIVEC) {
xvid_gbl_init.cpu_flags = XVID_CPU_FORCE | XVID_CPU_ALTIVEC;
} else
#endif
xvid_gbl_init.cpu_flags = XVID_CPU_FORCE;
#else
/* Xvid can detect on x86 */
xvid_gbl_init.cpu_flags = 0;
#endif
/* Initialize */
xvid_global(NULL, XVID_GBL_INIT, &xvid_gbl_init, NULL);
/* Create the encoder reference */
memset(&xvid_enc_create, 0, sizeof(xvid_enc_create));
xvid_enc_create.version = XVID_VERSION;
/* Store the desired frame size */
xvid_enc_create.width = x->xsize = avctx->width;
xvid_enc_create.height = x->ysize = avctx->height;
/* Xvid can determine the proper profile to use */
/* xvid_enc_create.profile = XVID_PROFILE_S_L3; */
/* We don't use zones */
xvid_enc_create.zones = NULL;
xvid_enc_create.num_zones = 0;
xvid_enc_create.num_threads = avctx->thread_count;
xvid_enc_create.plugins = plugins;
xvid_enc_create.num_plugins = 0;
/* Initialize Buffers */
x->twopassbuffer = NULL;
x->old_twopassbuffer = NULL;
x->twopassfile = NULL;
if( xvid_flags & CODEC_FLAG_PASS1 ) {
memset(&rc2pass1, 0, sizeof(struct xvid_ff_pass1));
rc2pass1.version = XVID_VERSION;
rc2pass1.context = x;
x->twopassbuffer = av_malloc(BUFFER_SIZE);
x->old_twopassbuffer = av_malloc(BUFFER_SIZE);
if( x->twopassbuffer == NULL || x->old_twopassbuffer == NULL ) {
av_log(avctx, AV_LOG_ERROR,
"Xvid: Cannot allocate 2-pass log buffers\n");
return -1;
}
x->twopassbuffer[0] = x->old_twopassbuffer[0] = 0;
plugins[xvid_enc_create.num_plugins].func = xvid_ff_2pass;
plugins[xvid_enc_create.num_plugins].param = &rc2pass1;
xvid_enc_create.num_plugins++;
} else if( xvid_flags & CODEC_FLAG_PASS2 ) {
memset(&rc2pass2, 0, sizeof(xvid_plugin_2pass2_t));
rc2pass2.version = XVID_VERSION;
rc2pass2.bitrate = avctx->bit_rate;
fd = ff_tempfile("xvidff.", &(x->twopassfile));
if( fd == -1 ) {
av_log(avctx, AV_LOG_ERROR,
"Xvid: Cannot write 2-pass pipe\n");
return -1;
}
if( avctx->stats_in == NULL ) {
av_log(avctx, AV_LOG_ERROR,
"Xvid: No 2-pass information loaded for second pass\n");
return -1;
}
if( strlen(avctx->stats_in) >
write(fd, avctx->stats_in, strlen(avctx->stats_in)) ) {
close(fd);
av_log(avctx, AV_LOG_ERROR,
"Xvid: Cannot write to 2-pass pipe\n");
return -1;
}
close(fd);
rc2pass2.filename = x->twopassfile;
plugins[xvid_enc_create.num_plugins].func = xvid_plugin_2pass2;
plugins[xvid_enc_create.num_plugins].param = &rc2pass2;
xvid_enc_create.num_plugins++;
} else if( !(xvid_flags & CODEC_FLAG_QSCALE) ) {
/* Single Pass Bitrate Control! */
memset(&single, 0, sizeof(xvid_plugin_single_t));
single.version = XVID_VERSION;
single.bitrate = avctx->bit_rate;
plugins[xvid_enc_create.num_plugins].func = xvid_plugin_single;
plugins[xvid_enc_create.num_plugins].param = &single;
xvid_enc_create.num_plugins++;
}
/* Luminance Masking */
if( 0.0 != avctx->lumi_masking ) {
plugins[xvid_enc_create.num_plugins].func = xvid_plugin_lumimasking;
plugins[xvid_enc_create.num_plugins].param = NULL;
xvid_enc_create.num_plugins++;
}
/* Frame Rate and Key Frames */
xvid_correct_framerate(avctx);
xvid_enc_create.fincr = avctx->time_base.num;
xvid_enc_create.fbase = avctx->time_base.den;
if( avctx->gop_size > 0 )
xvid_enc_create.max_key_interval = avctx->gop_size;
else
xvid_enc_create.max_key_interval = 240; /* Xvid's best default */
/* Quants */
if( xvid_flags & CODEC_FLAG_QSCALE ) x->qscale = 1;
else x->qscale = 0;
xvid_enc_create.min_quant[0] = avctx->qmin;
xvid_enc_create.min_quant[1] = avctx->qmin;
xvid_enc_create.min_quant[2] = avctx->qmin;
xvid_enc_create.max_quant[0] = avctx->qmax;
xvid_enc_create.max_quant[1] = avctx->qmax;
xvid_enc_create.max_quant[2] = avctx->qmax;
/* Quant Matrices */
x->intra_matrix = x->inter_matrix = NULL;
if( avctx->mpeg_quant )
x->vol_flags |= XVID_VOL_MPEGQUANT;
if( (avctx->intra_matrix || avctx->inter_matrix) ) {
x->vol_flags |= XVID_VOL_MPEGQUANT;
if( avctx->intra_matrix ) {
intra = avctx->intra_matrix;
x->intra_matrix = av_malloc(sizeof(unsigned char) * 64);
} else
intra = NULL;
if( avctx->inter_matrix ) {
inter = avctx->inter_matrix;
x->inter_matrix = av_malloc(sizeof(unsigned char) * 64);
} else
inter = NULL;
for( i = 0; i < 64; i++ ) {
if( intra )
x->intra_matrix[i] = (unsigned char)intra[i];
if( inter )
x->inter_matrix[i] = (unsigned char)inter[i];
}
}
/* Misc Settings */
xvid_enc_create.frame_drop_ratio = 0;
xvid_enc_create.global = 0;
if( xvid_flags & CODEC_FLAG_CLOSED_GOP )
xvid_enc_create.global |= XVID_GLOBAL_CLOSED_GOP;
/* Determines which codec mode we are operating in */
avctx->extradata = NULL;
avctx->extradata_size = 0;
if( xvid_flags & CODEC_FLAG_GLOBAL_HEADER ) {
/* In this case, we are claiming to be MPEG4 */
x->quicktime_format = 1;
avctx->codec_id = CODEC_ID_MPEG4;
} else {
/* We are claiming to be Xvid */
x->quicktime_format = 0;
if(!avctx->codec_tag)
avctx->codec_tag = AV_RL32("xvid");
}
/* Bframes */
xvid_enc_create.max_bframes = avctx->max_b_frames;
xvid_enc_create.bquant_offset = 100 * avctx->b_quant_offset;
xvid_enc_create.bquant_ratio = 100 * avctx->b_quant_factor;
if( avctx->max_b_frames > 0 && !x->quicktime_format ) xvid_enc_create.global |= XVID_GLOBAL_PACKED;
/* Create encoder context */
xerr = xvid_encore(NULL, XVID_ENC_CREATE, &xvid_enc_create, NULL);
if( xerr ) {
av_log(avctx, AV_LOG_ERROR, "Xvid: Could not create encoder reference\n");
return -1;
}
x->encoder_handle = xvid_enc_create.handle;
avctx->coded_frame = &x->encoded_picture;
return 0;
}
