mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-23 12:43:46 +02:00
In libx264 wrapper, add -preset and -tune options
This commit is contained in:
Baptiste Coudurier
parent
abf8342aa9
commit
0140d3f092
@ -365,8 +365,9 @@ void set_context_opts(void *ctx, void *opts_ctx, int flags, AVCodec *codec)
|
||||
/* We need to use a differnt system to pass options to the private context because
|
||||
it is not known which codec and thus context kind that will be when parsing options
|
||||
we thus use opt_values directly instead of opts_ctx */
|
||||
if(!str && priv_ctx && av_get_string(priv_ctx, opt_names[i], &opt, buf, sizeof(buf))){
|
||||
av_set_string3(priv_ctx, opt_names[i], opt_values[i], 1, NULL);
|
||||
if(!str && priv_ctx) {
|
||||
if (av_find_opt(priv_ctx, opt_names[i], NULL, flags, flags))
|
||||
av_set_string3(priv_ctx, opt_names[i], opt_values[i], 0, NULL);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
@ -19,6 +19,7 @@
|
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
||||
*/
|
||||
|
||||
#include "libavutil/opt.h"
|
||||
#include "avcodec.h"
|
||||
#include <x264.h>
|
||||
#include <math.h>
|
||||
@ -27,12 +28,17 @@
|
||||
#include <string.h>
|
||||
|
||||
typedef struct X264Context {
|
||||
AVClass *class;
|
||||
x264_param_t params;
|
||||
x264_t *enc;
|
||||
x264_picture_t pic;
|
||||
uint8_t *sei;
|
||||
int sei_size;
|
||||
AVFrame out_pic;
|
||||
const char *preset;
|
||||
const char *tune;
|
||||
const char *profile;
|
||||
int fastfirstpass;
|
||||
} X264Context;
|
||||
|
||||
static void X264_log(void *p, int level, const char *fmt, va_list args)
|
||||
@ -163,32 +169,7 @@ static av_cold int X264_init(AVCodecContext *avctx)
|
||||
x4->sei_size = 0;
|
||||
x264_param_default(&x4->params);
|
||||
|
||||
x4->params.pf_log = X264_log;
|
||||
x4->params.p_log_private = avctx;
|
||||
|
||||
x4->params.i_keyint_max = avctx->gop_size;
|
||||
x4->params.b_intra_refresh = avctx->flags2 & CODEC_FLAG2_INTRA_REFRESH;
|
||||
x4->params.rc.i_bitrate = avctx->bit_rate / 1000;
|
||||
x4->params.rc.i_vbv_buffer_size = avctx->rc_buffer_size / 1000;
|
||||
x4->params.rc.i_vbv_max_bitrate = avctx->rc_max_rate / 1000;
|
||||
x4->params.rc.b_stat_write = avctx->flags & CODEC_FLAG_PASS1;
|
||||
if (avctx->flags & CODEC_FLAG_PASS2) {
|
||||
x4->params.rc.b_stat_read = 1;
|
||||
} else {
|
||||
if (avctx->crf) {
|
||||
x4->params.rc.i_rc_method = X264_RC_CRF;
|
||||
x4->params.rc.f_rf_constant = avctx->crf;
|
||||
x4->params.rc.f_rf_constant_max = avctx->crf_max;
|
||||
} else if (avctx->cqp > -1) {
|
||||
x4->params.rc.i_rc_method = X264_RC_CQP;
|
||||
x4->params.rc.i_qp_constant = avctx->cqp;
|
||||
}
|
||||
}
|
||||
|
||||
// if neither crf nor cqp modes are selected we have to enable the RC
|
||||
// we do it this way because we cannot check if the bitrate has been set
|
||||
if (!(avctx->crf || (avctx->cqp > -1)))
|
||||
x4->params.rc.i_rc_method = X264_RC_ABR;
|
||||
|
||||
x4->params.i_bframe = avctx->max_b_frames;
|
||||
x4->params.b_cabac = avctx->coder_type == FF_CODER_TYPE_AC;
|
||||
@ -217,13 +198,6 @@ static av_cold int X264_init(AVCodecContext *avctx)
|
||||
|
||||
x4->params.i_frame_reference = avctx->refs;
|
||||
|
||||
x4->params.i_width = avctx->width;
|
||||
x4->params.i_height = avctx->height;
|
||||
x4->params.vui.i_sar_width = avctx->sample_aspect_ratio.num;
|
||||
x4->params.vui.i_sar_height = avctx->sample_aspect_ratio.den;
|
||||
x4->params.i_fps_num = x4->params.i_timebase_den = avctx->time_base.den;
|
||||
x4->params.i_fps_den = x4->params.i_timebase_num = avctx->time_base.num;
|
||||
|
||||
x4->params.analyse.inter = 0;
|
||||
if (avctx->partitions) {
|
||||
if (avctx->partitions & X264_PART_I4X4)
|
||||
@ -277,20 +251,65 @@ static av_cold int X264_init(AVCodecContext *avctx)
|
||||
if (avctx->level > 0)
|
||||
x4->params.i_level_idc = avctx->level;
|
||||
|
||||
x4->params.rc.b_mb_tree = !!(avctx->flags2 & CODEC_FLAG2_MBTREE);
|
||||
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)
|
||||
return -1;
|
||||
}
|
||||
|
||||
if (x4->fastfirstpass)
|
||||
x264_param_apply_fastfirstpass(&x4->params);
|
||||
|
||||
if (x4->profile)
|
||||
if (x264_param_apply_profile(&x4->params, x4->profile) < 0)
|
||||
return -1;
|
||||
|
||||
x4->params.pf_log = X264_log;
|
||||
x4->params.p_log_private = avctx;
|
||||
x4->params.i_log_level = X264_LOG_DEBUG;
|
||||
|
||||
x4->params.b_intra_refresh = avctx->flags2 & CODEC_FLAG2_INTRA_REFRESH;
|
||||
x4->params.rc.i_bitrate = avctx->bit_rate / 1000;
|
||||
x4->params.rc.i_vbv_buffer_size = avctx->rc_buffer_size / 1000;
|
||||
x4->params.rc.i_vbv_max_bitrate = avctx->rc_max_rate / 1000;
|
||||
x4->params.rc.b_stat_write = avctx->flags & CODEC_FLAG_PASS1;
|
||||
if (avctx->flags & CODEC_FLAG_PASS2) {
|
||||
x4->params.rc.b_stat_read = 1;
|
||||
} else {
|
||||
if (avctx->crf) {
|
||||
x4->params.rc.i_rc_method = X264_RC_CRF;
|
||||
x4->params.rc.f_rf_constant = avctx->crf;
|
||||
x4->params.rc.f_rf_constant_max = avctx->crf_max;
|
||||
} else if (avctx->cqp > -1) {
|
||||
x4->params.rc.i_rc_method = X264_RC_CQP;
|
||||
x4->params.rc.i_qp_constant = avctx->cqp;
|
||||
}
|
||||
}
|
||||
|
||||
// if neither crf nor cqp modes are selected we have to enable the RC
|
||||
// we do it this way because we cannot check if the bitrate has been set
|
||||
if (!(avctx->crf || (avctx->cqp > -1)))
|
||||
x4->params.rc.i_rc_method = X264_RC_ABR;
|
||||
|
||||
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.b_mb_tree = !!(avctx->flags2 & CODEC_FLAG2_MBTREE);
|
||||
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;
|
||||
x4->params.i_width = avctx->width;
|
||||
x4->params.i_height = avctx->height;
|
||||
x4->params.vui.i_sar_width = avctx->sample_aspect_ratio.num;
|
||||
x4->params.vui.i_sar_height = avctx->sample_aspect_ratio.den;
|
||||
x4->params.i_fps_num = x4->params.i_timebase_den = avctx->time_base.den;
|
||||
x4->params.i_fps_den = x4->params.i_timebase_num = avctx->time_base.num;
|
||||
|
||||
x4->params.analyse.b_psnr = avctx->flags & CODEC_FLAG_PSNR;
|
||||
x4->params.analyse.b_ssim = avctx->flags2 & CODEC_FLAG2_SSIM;
|
||||
x4->params.i_log_level = X264_LOG_DEBUG;
|
||||
|
||||
x4->params.b_aud = avctx->flags2 & CODEC_FLAG2_AUD;
|
||||
|
||||
@ -305,6 +324,11 @@ static av_cold int X264_init(AVCodecContext *avctx)
|
||||
if (avctx->flags & CODEC_FLAG_GLOBAL_HEADER)
|
||||
x4->params.b_repeat_headers = 0;
|
||||
|
||||
// update AVCodecContext with x264 parameters
|
||||
avctx->has_b_frames = x4->params.i_bframe_pyramid ? 2 : !!x4->params.i_bframe;
|
||||
avctx->bit_rate = x4->params.rc.i_bitrate*1000;
|
||||
avctx->crf = x4->params.rc.f_rf_constant;
|
||||
|
||||
x4->enc = x264_encoder_open(&x4->params);
|
||||
if (!x4->enc)
|
||||
return -1;
|
||||
@ -328,6 +352,19 @@ static av_cold int X264_init(AVCodecContext *avctx)
|
||||
return 0;
|
||||
}
|
||||
|
||||
#define OFFSET(x) offsetof(X264Context,x)
|
||||
#define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
|
||||
|
||||
static const AVOption options[] = {
|
||||
{"preset", "Set the encoding preset", OFFSET(preset), FF_OPT_TYPE_STRING, 0, 0, 0, VE},
|
||||
{"tune", "Tune the encoding params", OFFSET(tune), 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},
|
||||
{"profile", "Set profile restrictions", OFFSET(profile), FF_OPT_TYPE_STRING, 0, 0, 0, VE},
|
||||
{ NULL },
|
||||
};
|
||||
|
||||
static const AVClass class = { "libx264", av_default_item_name, options, LIBAVUTIL_VERSION_INT };
|
||||
|
||||
AVCodec ff_libx264_encoder = {
|
||||
.name = "libx264",
|
||||
.type = AVMEDIA_TYPE_VIDEO,
|
||||
@ -339,4 +376,5 @@ AVCodec ff_libx264_encoder = {
|
||||
.capabilities = CODEC_CAP_DELAY,
|
||||
.pix_fmts = (const enum PixelFormat[]) { PIX_FMT_YUV420P, PIX_FMT_YUVJ420P, PIX_FMT_NONE },
|
||||
.long_name = NULL_IF_CONFIG_SMALL("libx264 H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10"),
|
||||
.priv_class = &class,
|
||||
};
|
||||
|
||||
Loading…
Reference in New Issue
Block a user