* H.264 encoding using the x264 library
* Copyright (C) 2005 Mans Rullgard <mans@mansr.com>
*
- * This file is part of Libav.
+ * This file is part of FFmpeg.
*
- * Libav is free software; you can redistribute it and/or
+ * FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
- * Libav is distributed in the hope that it will be useful,
+ * FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
- * License along with Libav; if not, write to the Free Software
+ * License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
char *preset;
char *tune;
char *profile;
+ char *level;
int fastfirstpass;
+ char *stats;
+ char *wpredp;
+ char *x264opts;
float crf;
float crf_max;
int cqp;
x4->params.b_tff = frame->top_field_first;
x264_encoder_reconfig(x4->enc, &x4->params);
}
+ if (x4->params.vui.i_sar_height != ctx->sample_aspect_ratio.den
+ || x4->params.vui.i_sar_width != ctx->sample_aspect_ratio.num) {
+ x4->params.vui.i_sar_height = ctx->sample_aspect_ratio.den;
+ x4->params.vui.i_sar_width = ctx->sample_aspect_ratio.num;
+ x264_encoder_reconfig(x4->enc, &x4->params);
+ }
}
do {
return 0;
}
+/**
+ * Detect default settings and use default profile to avoid libx264 failure.
+ */
+static void check_default_settings(AVCodecContext *avctx)
+{
+ X264Context *x4 = avctx->priv_data;
+
+ int score = 0;
+ score += x4->params.analyse.i_me_range == 0;
+ score += x4->params.rc.i_qp_step == 3;
+ score += x4->params.i_keyint_max == 12;
+ score += x4->params.rc.i_qp_min == 2;
+ score += x4->params.rc.i_qp_max == 31;
+ score += x4->params.rc.f_qcompress == 0.5;
+ score += fabs(x4->params.rc.f_ip_factor - 1.25) < 0.01;
+ score += fabs(x4->params.rc.f_pb_factor - 1.25) < 0.01;
+ score += x4->params.analyse.inter == 0 && x4->params.analyse.i_subpel_refine == 8;
+ if (score >= 5) {
+ av_log(avctx, AV_LOG_ERROR, "Default settings detected, using medium profile\n");
+ x4->preset = av_strdup("medium");
+ if (avctx->bit_rate == 200*1000)
+ avctx->crf = 23;
+ }
+}
+
+#define OPT_STR(opt, param) \
+ do { \
+ int ret; \
+ if (param && (ret = x264_param_parse(&x4->params, opt, param)) < 0) { \
+ if(ret == X264_PARAM_BAD_NAME) \
+ av_log(avctx, AV_LOG_ERROR, \
+ "bad option '%s': '%s'\n", opt, param); \
+ else \
+ av_log(avctx, AV_LOG_ERROR, \
+ "bad value for '%s': '%s'\n", opt, param); \
+ return -1; \
+ } \
+ } while (0);
+
#define PARSE_X264_OPT(name, var)\
if (x4->var && x264_param_parse(&x4->params, name, x4->var) < 0) {\
av_log(avctx, AV_LOG_ERROR, "Error parsing option '%s' with value '%s'.\n", name, x4->var);\
x4->params.b_deblocking_filter = avctx->flags & CODEC_FLAG_LOOP_FILTER;
+ x4->params.rc.f_ip_factor = 1 / fabs(avctx->i_quant_factor);
+ x4->params.rc.f_pb_factor = avctx->b_quant_factor;
+ x4->params.analyse.i_chroma_qp_offset = avctx->chromaoffset;
if (x4->preset || x4->tune)
if (x264_param_default_preset(&x4->params, x4->preset, x4->tune) < 0) {
av_log(avctx, AV_LOG_ERROR, "Error setting preset/tune %s/%s.\n", x4->preset, x4->tune);
x4->params.p_log_private = avctx;
x4->params.i_log_level = X264_LOG_DEBUG;
+ OPT_STR("weightp", x4->wpredp);
+
if (avctx->bit_rate) {
x4->params.rc.i_bitrate = avctx->bit_rate / 1000;
x4->params.rc.i_rc_method = X264_RC_ABR;
x4->params.rc.f_rf_constant_max = x4->crf_max;
}
+ OPT_STR("stats", x4->stats);
+
if (avctx->rc_buffer_size && avctx->rc_initial_buffer_occupancy &&
(avctx->rc_initial_buffer_occupancy <= avctx->rc_buffer_size)) {
x4->params.rc.f_vbv_buffer_init =
(float)avctx->rc_initial_buffer_occupancy / avctx->rc_buffer_size;
}
- x4->params.rc.f_ip_factor = 1 / fabs(avctx->i_quant_factor);
- x4->params.rc.f_pb_factor = avctx->b_quant_factor;
- x4->params.analyse.i_chroma_qp_offset = avctx->chromaoffset;
+ OPT_STR("level", x4->level);
+
+ if(x4->x264opts){
+ const char *p= x4->x264opts;
+ while(p){
+ char param[256]={0}, val[256]={0};
+ sscanf(p, "%255[^:=]=%255[^:]", param, val);
+ OPT_STR(param, val);
+ p= strchr(p, ':');
+ p+=!!p;
+ }
+ }
#if FF_API_X264_GLOBAL_OPTS
if (avctx->aq_mode >= 0)
x4->params.b_interlaced = avctx->flags & CODEC_FLAG_INTERLACED_DCT;
- x4->params.b_open_gop = !(avctx->flags & CODEC_FLAG_CLOSED_GOP);
+// x4->params.b_open_gop = !(avctx->flags & CODEC_FLAG_CLOSED_GOP);
x4->params.i_slice_count = avctx->slices;
{ "tune", "Tune the encoding params (cf. x264 --fullhelp)", OFFSET(tune), FF_OPT_TYPE_STRING, { 0 }, 0, 0, VE},
{ "profile", "Set profile restrictions (cf. x264 --fullhelp) ", OFFSET(profile), FF_OPT_TYPE_STRING, { 0 }, 0, 0, VE},
{ "fastfirstpass", "Use fast settings when encoding first pass", OFFSET(fastfirstpass), FF_OPT_TYPE_INT, { 1 }, 0, 1, VE},
+ {"level", "Specify level (as defined by Annex A)", OFFSET(level), FF_OPT_TYPE_STRING, {.str=NULL}, 0, 0, VE},
+ {"passlogfile", "Filename for 2 pass stats", OFFSET(stats), FF_OPT_TYPE_STRING, {.str=NULL}, 0, 0, VE},
+ {"wpredp", "Weighted prediction for P-frames", OFFSET(wpredp), FF_OPT_TYPE_STRING, {.str=NULL}, 0, 0, VE},
+ {"x264opts", "x264 options", OFFSET(x264opts), FF_OPT_TYPE_STRING, {.str=NULL}, 0, 0, VE},
{ "crf", "Select the quality for constant quality mode", OFFSET(crf), FF_OPT_TYPE_FLOAT, {-1 }, -1, FLT_MAX, VE },
{ "crf_max", "In CRF mode, prevents VBV from lowering quality beyond this point.",OFFSET(crf_max), FF_OPT_TYPE_FLOAT, {-1 }, -1, FLT_MAX, VE },
{ "qp", "Constant quantization parameter rate control method",OFFSET(cqp), FF_OPT_TYPE_INT, {-1 }, -1, INT_MAX, VE },
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