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mpv/libmpcodecs/ve_x264.c

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/*****************************************************************************
*
* - H.264 encoder for mencoder using x264 -
*
* Copyright (C) 2004 LINUX4MEDIA GmbH
* Copyright (C) 2004 Ark Linux
*
* Written by Bernhard Rosenkraenzer <bero@arklinux.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation, or if, and only if,
* version 2 is ruled invalid in a court of law, any later version
* of the GNU General Public License published by the Free Software
* Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTIBILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
*****************************************************************************/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include "config.h"
#include "mp_msg.h"
#include "m_option.h"
#include "codec-cfg.h"
#include "stream/stream.h"
#include "libmpdemux/demuxer.h"
#include "libmpdemux/stheader.h"
#include "stream/stream.h"
#include "libmpdemux/muxer.h"
#include "img_format.h"
#include "mp_image.h"
#include "vf.h"
#include <x264.h>
typedef struct h264_module_t {
muxer_stream_t *mux;
x264_t * x264;
x264_picture_t pic;
} h264_module_t;
extern char* passtmpfile;
static int turbo = 0;
static x264_param_t param;
static int parse_error = 0;
static int encode_nals(uint8_t *buf, int size, x264_nal_t *nals, int nnal){
uint8_t *p = buf;
int i;
for(i = 0; i < nnal; i++){
int s = x264_nal_encode(p, &size, 1, nals + i);
if(s < 0)
return -1;
p += s;
}
return p - buf;
}
static int put_image(struct vf_instance_s *vf, mp_image_t *mpi, double pts);
static int encode_frame(struct vf_instance_s *vf, x264_picture_t *pic_in);
void x264enc_set_param(const m_option_t* opt, char* arg)
{
static int initted = 0;
if(!initted) {
x264_param_default(&param);
x264_param_parse(&param, "psnr", "no");
x264_param_parse(&param, "ssim", "no");
initted = 1;
}
if(!arg) {
parse_error = 1;
return;
}
while(*arg) {
char *name = arg;
char *value;
int ret;
arg += strcspn(arg, ":");
if(*arg) {
*arg = 0;
arg++;
}
value = strchr( name, '=' );
if(value) {
*value = 0;
value++;
}
if(!strcmp(name, "turbo")) {
turbo = value ? atoi(value) : 1;
continue;
}
ret = x264_param_parse(&param, name, value);
if(ret == X264_PARAM_BAD_NAME)
mp_msg(MSGT_CFGPARSER, MSGL_ERR, "Option x264encopts: Unknown suboption %s\n", name);
if(ret == X264_PARAM_BAD_VALUE)
mp_msg(MSGT_CFGPARSER, MSGL_ERR, "Option x264encopts: Bad argument %s=%s\n", name, value ? value : "(null)");
/* mark this option as done, so it's not reparsed if there's another -x264encopts */
*name = 0;
parse_error |= ret;
}
if(param.rc.b_stat_write && !param.rc.b_stat_read) {
/* Adjust or disable some flags to gain speed in the first pass */
if(turbo == 1)
{
param.i_frame_reference = ( param.i_frame_reference + 1 ) >> 1;
param.analyse.i_subpel_refine = FFMAX( FFMIN( 3, param.analyse.i_subpel_refine - 1 ), 1 );
param.analyse.inter &= ( ~X264_ANALYSE_PSUB8x8 );
param.analyse.inter &= ( ~X264_ANALYSE_BSUB16x16 );
param.analyse.i_trellis = 0;
}
else if(turbo >= 2)
{
param.i_frame_reference = 1;
param.analyse.i_subpel_refine = 1;
param.analyse.i_me_method = X264_ME_DIA;
param.analyse.inter = 0;
param.analyse.b_transform_8x8 = 0;
param.analyse.b_weighted_bipred = 0;
param.analyse.i_trellis = 0;
}
}
}
static int config(struct vf_instance_s* vf, int width, int height, int d_width, int d_height, unsigned int flags, unsigned int outfmt) {
h264_module_t *mod=(h264_module_t*)vf->priv;
if(parse_error)
return 0;
mod->mux->bih->biWidth = width;
mod->mux->bih->biHeight = height;
mod->mux->bih->biSizeImage = width * height * 3;
mod->mux->aspect = (float)d_width/d_height;
// make sure param is initialized
x264enc_set_param(NULL, "");
param.i_width = width;
param.i_height = height;
param.i_fps_num = mod->mux->h.dwRate;
param.i_fps_den = mod->mux->h.dwScale;
param.vui.i_sar_width = d_width*height;
param.vui.i_sar_height = d_height*width;
x264_param_parse(&param, "stats", passtmpfile);
switch(outfmt) {
case IMGFMT_I420:
param.i_csp = X264_CSP_I420;
break;
case IMGFMT_YV12:
param.i_csp = X264_CSP_YV12;
break;
default:
mp_msg(MSGT_MENCODER, MSGL_ERR, "Wrong colorspace.\n");
return 0;
}
mod->x264 = x264_encoder_open(&param);
if(!mod->x264) {
mp_msg(MSGT_MENCODER, MSGL_ERR, "x264_encoder_open failed.\n");
return 0;
}
if(!param.b_repeat_headers){
uint8_t *extradata;
x264_nal_t *nal;
int extradata_size, nnal, i, s = 0;
x264_encoder_headers(mod->x264, &nal, &nnal);
/* 5 bytes NAL header + worst case escaping */
for(i = 0; i < nnal; i++)
s += 5 + nal[i].i_payload * 4 / 3;
extradata = malloc(s);
extradata_size = encode_nals(extradata, s, nal, nnal);
mod->mux->bih= realloc(mod->mux->bih, sizeof(BITMAPINFOHEADER) + extradata_size);
memcpy(mod->mux->bih + 1, extradata, extradata_size);
mod->mux->bih->biSize= sizeof(BITMAPINFOHEADER) + extradata_size;
}
if (param.i_bframe > 1 && param.b_bframe_pyramid)
mod->mux->decoder_delay = 2;
else
mod->mux->decoder_delay = param.i_bframe ? 1 : 0;
return 1;
}
static int control(struct vf_instance_s* vf, int request, void *data)
{
h264_module_t *mod=(h264_module_t*)vf->priv;
switch(request){
case VFCTRL_FLUSH_FRAMES:
if(param.i_bframe)
while(encode_frame(vf, NULL) > 0);
return CONTROL_TRUE;
default:
return CONTROL_UNKNOWN;
}
}
static int query_format(struct vf_instance_s* vf, unsigned int fmt)
{
switch(fmt) {
case IMGFMT_I420:
return (VFCAP_CSP_SUPPORTED|VFCAP_CSP_SUPPORTED_BY_HW);
case IMGFMT_YV12:
case IMGFMT_422P:
case IMGFMT_444P:
case IMGFMT_YVYU:
case IMGFMT_RGB:
case IMGFMT_BGR:
case IMGFMT_BGR32:
/* These colorspaces are supported, but they'll just have
* to be converted to I420 internally */
return 0; /* VFCAP_CSP_SUPPORTED */
}
return 0;
}
static int put_image(struct vf_instance_s *vf, mp_image_t *mpi, double pts)
{
h264_module_t *mod=(h264_module_t*)vf->priv;
int i;
memset(&mod->pic, 0, sizeof(x264_picture_t));
mod->pic.img.i_csp=param.i_csp;
mod->pic.img.i_plane=3;
for(i=0; i<4; i++) {
mod->pic.img.plane[i] = mpi->planes[i];
mod->pic.img.i_stride[i] = mpi->stride[i];
}
mod->pic.i_type = X264_TYPE_AUTO;
return encode_frame(vf, &mod->pic) >= 0;
}
static int encode_frame(struct vf_instance_s *vf, x264_picture_t *pic_in)
{
h264_module_t *mod=(h264_module_t*)vf->priv;
x264_picture_t pic_out;
x264_nal_t *nal;
int i_nal;
int i_size = 0;
int i;
if(x264_encoder_encode(mod->x264, &nal, &i_nal, pic_in, &pic_out) < 0) {
mp_msg(MSGT_MENCODER, MSGL_ERR, "x264_encoder_encode failed\n");
return -1;
}
for(i=0; i < i_nal; i++) {
int i_data = mod->mux->buffer_size - i_size;
i_size += x264_nal_encode(mod->mux->buffer + i_size, &i_data, 1, &nal[i]);
}
if(i_size>0) {
int keyframe = (pic_out.i_type == X264_TYPE_IDR) ||
(pic_out.i_type == X264_TYPE_I
&& param.i_frame_reference == 1
&& !param.i_bframe);
muxer_write_chunk(mod->mux, i_size, keyframe?0x10:0, MP_NOPTS_VALUE, MP_NOPTS_VALUE);
}
else
++mod->mux->encoder_delay;
return i_size;
}
static void uninit(struct vf_instance_s *vf)
{
h264_module_t *mod=(h264_module_t*)vf->priv;
if (mod->x264)
x264_encoder_close(mod->x264);
}
static int vf_open(vf_instance_t *vf, char *args) {
h264_module_t *mod;
vf->config = config;
vf->default_caps = VFCAP_CONSTANT;
vf->control = control;
vf->query_format = query_format;
vf->put_image = put_image;
vf->uninit = uninit;
vf->priv = malloc(sizeof(h264_module_t));
mod=(h264_module_t*)vf->priv;
mod->mux = (muxer_stream_t*)args;
mod->mux->bih = malloc(sizeof(BITMAPINFOHEADER));
memset(mod->mux->bih, 0, sizeof(BITMAPINFOHEADER));
mod->mux->bih->biSize = sizeof(BITMAPINFOHEADER);
mod->mux->bih->biPlanes = 1;
mod->mux->bih->biBitCount = 24;
mod->mux->bih->biCompression = mmioFOURCC('h', '2', '6', '4');
return 1;
}
vf_info_t ve_info_x264 = {
"H.264 encoder",
"x264",
"Bernhard Rosenkraenzer <bero@arklinux.org>",
"(C) 2004 LINUX4MEDIA GmbH; (C) 2004 Ark Linux",
vf_open
};
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