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quantizer noise shaping 

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@11911 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
michael 2004-02-02 14:19:55 +00:00
parent 55dfba195f
commit eb1a176e5b
2 changed files with 21 additions and 0 deletions
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16
DOCS/man/en/mplayer.1
View File

@ -4892,6 +4892,22 @@ Tip: a more positive bias (-32 \- -16 instead of -64) seems to improve the PSNR
.B nr=<0\-100000>
noise reduction, 0 is disabled
.TP
.B qns=<0\-3>
quantizer noise shaping, reduces ringing artefacts, larger values are slower
but may not result in better quality
.PD 0
.RSs
.IPs 0
disabled (default)
.IPs 1
only lower the absolute value of coefficients
.IPs 2
only change coefficients before the last non zero coefficient + 1
.IPs 3
try all
.RE
.PD 1
.TP
.B inter_matrix=<comma separated matrix>
Use custom inter matrix. It needs a comma separated string of 64 integers.
.TP

5
libmpcodecs/ve_lavc.c
View File

@ -140,6 +140,7 @@ static char *lavc_param_inter_matrix = NULL;
static int lavc_param_cbp= 0;
static int lavc_param_mv0= 0;
static int lavc_param_noise_reduction= 0;
static int lavc_param_qns= 0;
static int lavc_param_qp_rd= 0;
static int lavc_param_inter_threshold= 0;
static int lavc_param_sc_threshold= 0;
@ -286,6 +287,7 @@ m_option_t lavcopts_conf[]={
{"inter_threshold", &lavc_param_inter_threshold, CONF_TYPE_INT, CONF_RANGE, -1000000, 1000000, NULL},
{"sc_threshold", &lavc_param_sc_threshold, CONF_TYPE_INT, CONF_RANGE, -1000000, 1000000, NULL},
{"top", &lavc_param_top, CONF_TYPE_INT, CONF_RANGE, -1, 1, NULL},
{"qns", &lavc_param_qns, CONF_TYPE_INT, CONF_RANGE, 0, 1000000, NULL},
{NULL, NULL, 0, 0, 0, 0, NULL}
};
#endif
@ -402,6 +404,9 @@ static int config(struct vf_instance_s* vf,
#if LIBAVCODEC_BUILD >= 4690
lavc_venc_context->noise_reduction= lavc_param_noise_reduction;
#endif
#if LIBAVCODEC_BUILD >= 4700
lavc_venc_context->quantizer_noise_shaping= lavc_param_qns;
#endif
#if LIBAVCODEC_BUILD >= 4693
lavc_venc_context->inter_threshold= lavc_param_inter_threshold;
#endif