From 7fa1bf6c592b9d4c4ac76da436193a8bfeaf1df5 Mon Sep 17 00:00:00 2001 From: gpoirier Date: Sun, 19 Sep 2004 09:59:05 +0000 Subject: New lavc flag: "turbo" mode which is supposed to speed up 2-pass encoding while preserving quality as much as possible. Inspired by XviD "turbo" mode. git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@13387 b3059339-0415-0410-9bf9-f77b7e298cf2 --- DOCS/man/en/mplayer.1 | 7 +++++++ DOCS/man/fr/mplayer.1 | 9 ++++++++- libmpcodecs/ve_lavc.c | 26 ++++++++++++++++++++++++++ 3 files changed, 41 insertions(+), 1 deletion(-) diff --git a/DOCS/man/en/mplayer.1 b/DOCS/man/en/mplayer.1 index 2882583fe8..c4ddd5354b 100644 --- a/DOCS/man/en/mplayer.1 +++ b/DOCS/man/en/mplayer.1 @@ -5327,6 +5327,13 @@ from the first pass. .PD 1 . .TP +.B turbo (2-pass only) +Dramatically speeds up pass 1 using faster algorithms and disabling +CPU-intensive options. +This will probably reduce global PSNR a little bit (around 0.01dB) and +change individual frame type and PSNR little bit more (up to 0.03dB). +. +.TP .B aspect= Store movie aspect internally, just like MPEG files. Much nicer solution than rescaling, because quality isn't decreased. diff --git a/DOCS/man/fr/mplayer.1 b/DOCS/man/fr/mplayer.1 index 141d26d64b..162db38ac9 100644 --- a/DOCS/man/fr/mplayer.1 +++ b/DOCS/man/fr/mplayer.1 @@ -1,4 +1,4 @@ -.\" synced with 1.722 +.\" synced with 1.723 .\" MPlayer (C) 2000-2004 MPlayer Team .\" This man page was/is done by Gabucino, Diego Biurrun, Jonas Jermann .\" Traduction: Nicolas Le Gaillart < nicolas AT legaillart.com > @@ -5568,6 +5568,13 @@ Encode avec une table Huffman optimis .PD 1 . .TP +.B turbo (2-pass uniquement) +Accélère énormément la première passe en utilisant des algorithmes plus +rapides et en désactivant des options gourmandes en temps processeur. +Cela va sans doute diminuer le PSNR global (d'environ 0.01dB) et changer +un peu plus le type et le PSNR des trames générées (jusqu'à 0.03dB). +. +.TP .B aspect= Stocke le rapport hauteur/\:largeur du film en interne, tout comme les fichiers MPEG. diff --git a/libmpcodecs/ve_lavc.c b/libmpcodecs/ve_lavc.c index 86dd0dc774..75e2f9e671 100644 --- a/libmpcodecs/ve_lavc.c +++ b/libmpcodecs/ve_lavc.c @@ -153,6 +153,7 @@ static int lavc_param_nssew= 8; static int lavc_param_closed_gop = 0; static int lavc_param_dc_precision = 8; static int lavc_param_threads= 1; +static int lavc_param_turbo = 0; char *lavc_param_acodec = "mp2"; @@ -302,6 +303,7 @@ m_option_t lavcopts_conf[]={ {"qns", &lavc_param_qns, CONF_TYPE_INT, CONF_RANGE, 0, 1000000, NULL}, {"nssew", &lavc_param_nssew, CONF_TYPE_INT, CONF_RANGE, 0, 1000000, NULL}, {"threads", &lavc_param_threads, CONF_TYPE_INT, CONF_RANGE, 1, 8, NULL}, + {"turbo", &lavc_param_turbo, CONF_TYPE_FLAG, 0, 0, 1, NULL}, {NULL, NULL, 0, 0, 0, 0, NULL} }; #endif @@ -666,6 +668,30 @@ static int config(struct vf_instance_s* vf, mp_msg(MSGT_MENCODER,MSGL_ERR,"2pass failed: filename=%s\n", passtmpfile); return 0; } + if(lavc_param_turbo) { + /* uses SAD comparison functions instead of other hungrier */ + lavc_venc_context->me_pre_cmp = 0; + lavc_venc_context->me_cmp = 0; + lavc_venc_context->me_sub_cmp = 0; + lavc_venc_context->mb_cmp = 2; + + /* Disables diamond motion estimation */ + lavc_venc_context->pre_dia_size = 0; + lavc_venc_context->dia_size = 0; + + lavc_venc_context->quantizer_noise_shaping = 0; // qns=0 + lavc_venc_context->noise_reduction = 0; // nr=0 + + if (lavc_param_mb_decision) { + lavc_venc_context->mb_decision = 1; // mbd=0 ("realtime" encoding) + } + lavc_venc_context->flags &= ~CODEC_FLAG_QPEL; + lavc_venc_context->flags &= ~CODEC_FLAG_4MV; + lavc_venc_context->flags &= ~CODEC_FLAG_TRELLIS_QUANT; + lavc_venc_context->flags &= ~CODEC_FLAG_CBP_RD; + lavc_venc_context->flags &= ~CODEC_FLAG_QP_RD; + lavc_venc_context->flags &= ~CODEC_FLAG_MV0; + } break; } } -- cgit v1.2.3