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/*****************************************************************************
* muxers.c: h264 file i/o plugins
*****************************************************************************
* Copyright (C) 2003-2006 x264 project
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 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., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
*****************************************************************************/
#include "common/common.h"
#include "x264.h"
#include "matroska.h"
#include "muxers.h"
#ifndef _MSC_VER
#include "config.h"
#endif
#include <sys/types.h>
#ifdef AVIS_INPUT
#include <windows.h>
#include <vfw.h>
#endif
#ifdef MP4_OUTPUT
#include <gpac/isomedia.h>
#endif
static int64_t gcd( int64_t a, int64_t b )
{
while (1)
{
int64_t c = a % b;
if( !c )
return b;
a = b;
b = c;
}
}
typedef struct {
FILE *fh;
int width, height;
int next_frame;
} yuv_input_t;
/* raw 420 yuv file operation */
int open_file_yuv( char *psz_filename, hnd_t *p_handle, x264_param_t *p_param )
{
yuv_input_t *h = malloc(sizeof(yuv_input_t));
h->width = p_param->i_width;
h->height = p_param->i_height;
h->next_frame = 0;
if( !strcmp(psz_filename, "-") )
h->fh = stdin;
else
h->fh = fopen(psz_filename, "rb");
if( h->fh == NULL )
return -1;
*p_handle = (hnd_t)h;
return 0;
}
int get_frame_total_yuv( hnd_t handle )
{
yuv_input_t *h = handle;
int i_frame_total = 0;
if( !fseek( h->fh, 0, SEEK_END ) )
{
uint64_t i_size = ftell( h->fh );
fseek( h->fh, 0, SEEK_SET );
i_frame_total = (int)(i_size / ( h->width * h->height * 3 / 2 ));
}
return i_frame_total;
}
int read_frame_yuv( x264_picture_t *p_pic, hnd_t handle, int i_frame )
{
yuv_input_t *h = handle;
if( i_frame != h->next_frame )
if( fseek( h->fh, (uint64_t)i_frame * h->width * h->height * 3 / 2, SEEK_SET ) )
return -1;
if( fread( p_pic->img.plane[0], 1, h->width * h->height, h->fh ) <= 0
|| fread( p_pic->img.plane[1], 1, h->width * h->height / 4, h->fh ) <= 0
|| fread( p_pic->img.plane[2], 1, h->width * h->height / 4, h->fh ) <= 0 )
return -1;
h->next_frame = i_frame+1;
return 0;
}
int close_file_yuv(hnd_t handle)
{
yuv_input_t *h = handle;
if( !h || !h->fh )
return 0;
fclose( h->fh );
free( h );
return 0;
}
/* YUV4MPEG2 raw 420 yuv file operation */
typedef struct {
FILE *fh;
int width, height;
int next_frame;
int seq_header_len, frame_header_len;
int frame_size;
} y4m_input_t;
#define Y4M_MAGIC "YUV4MPEG2"
#define MAX_YUV4_HEADER 80
#define Y4M_FRAME_MAGIC "FRAME"
#define MAX_FRAME_HEADER 80
int open_file_y4m( char *psz_filename, hnd_t *p_handle, x264_param_t *p_param )
{
int i, n, d;
int interlaced;
char header[MAX_YUV4_HEADER+10];
char *tokstart, *tokend, *header_end;
y4m_input_t *h = malloc(sizeof(y4m_input_t));
h->next_frame = 0;
if( !strcmp(psz_filename, "-") )
h->fh = stdin;
else
h->fh = fopen(psz_filename, "rb");
if( h->fh == NULL )
return -1;
h->frame_header_len = strlen(Y4M_FRAME_MAGIC)+1;
/* Read header */
for( i=0; i<MAX_YUV4_HEADER; i++ )
{
header[i] = fgetc(h->fh);
if( header[i] == '\n' )
{
/* Add a space after last option. Makes parsing "444" vs
"444alpha" easier. */
header[i+1] = 0x20;
header[i+2] = 0;
break;
}
}
if( i == MAX_YUV4_HEADER || strncmp(header, Y4M_MAGIC, strlen(Y4M_MAGIC)) )
return -1;
/* Scan properties */
header_end = &header[i+1]; /* Include space */
h->seq_header_len = i+1;
for( tokstart = &header[strlen(Y4M_MAGIC)+1]; tokstart < header_end; tokstart++ )
{
if(*tokstart==0x20) continue;
switch(*tokstart++)
{
case 'W': /* Width. Required. */
h->width = p_param->i_width = strtol(tokstart, &tokend, 10);
tokstart=tokend;
break;
case 'H': /* Height. Required. */
h->height = p_param->i_height = strtol(tokstart, &tokend, 10);
tokstart=tokend;
break;
case 'C': /* Color space */
if( strncmp("420", tokstart, 3) )
{
fprintf(stderr, "Colorspace unhandled\n");
return -1;
}
tokstart = strchr(tokstart, 0x20);
break;
case 'I': /* Interlace type */
switch(*tokstart++)
{
case 'p': interlaced = 0; break;
case '?':
case 't':
case 'b':
case 'm':
default: interlaced = 1;
fprintf(stderr, "Warning, this sequence might be interlaced\n");
}
break;
case 'F': /* Frame rate - 0:0 if unknown */
if( sscanf(tokstart, "%d:%d", &n, &d) == 2 && n && d )
{
x264_reduce_fraction( &n, &d );
p_param->i_fps_num = n;
p_param->i_fps_den = d;
}
tokstart = strchr(tokstart, 0x20);
break;
case 'A': /* Pixel aspect - 0:0 if unknown */
if( sscanf(tokstart, "%d:%d", &n, &d) == 2 && n && d )
{
x264_reduce_fraction( &n, &d );
p_param->vui.i_sar_width = n;
p_param->vui.i_sar_height = d;
}
tokstart = strchr(tokstart, 0x20);
break;
case 'X': /* Vendor extensions */
if( !strncmp("YSCSS=",tokstart,6) )
{
/* Older nonstandard pixel format representation */
tokstart += 6;
if( strncmp("420JPEG",tokstart,7) &&
strncmp("420MPEG2",tokstart,8) &&
strncmp("420PALDV",tokstart,8) )
{
fprintf(stderr, "Unsupported extended colorspace\n");
return -1;
}
}
tokstart = strchr(tokstart, 0x20);
break;
}
}
fprintf(stderr, "yuv4mpeg: %ix%i@%i/%ifps, %i:%i\n",
h->width, h->height, p_param->i_fps_num, p_param->i_fps_den,
p_param->vui.i_sar_width, p_param->vui.i_sar_height);
*p_handle = (hnd_t)h;
return 0;
}
/* Most common case: frame_header = "FRAME" */
int get_frame_total_y4m( hnd_t handle )
{
y4m_input_t *h = handle;
int i_frame_total = 0;
uint64_t init_pos = ftell(h->fh);
if( !fseek( h->fh, 0, SEEK_END ) )
{
uint64_t i_size = ftell( h->fh );
fseek( h->fh, init_pos, SEEK_SET );
i_frame_total = (int)((i_size - h->seq_header_len) /
(3*(h->width*h->height)/2+h->frame_header_len));
}
return i_frame_total;
}
int read_frame_y4m( x264_picture_t *p_pic, hnd_t handle, int i_frame )
{
int slen = strlen(Y4M_FRAME_MAGIC);
int i = 0;
char header[16];
y4m_input_t *h = handle;
if( i_frame != h->next_frame )
{
if (fseek(h->fh, (uint64_t)i_frame*(3*(h->width*h->height)/2+h->frame_header_len)
+ h->seq_header_len, SEEK_SET))
return -1;
}
/* Read frame header - without terminating '\n' */
if (fread(header, 1, slen, h->fh) != slen)
return -1;
header[slen] = 0;
if (strncmp(header, Y4M_FRAME_MAGIC, slen))
{
fprintf(stderr, "Bad header magic (%08X <=> %s)\n",
*((uint32_t*)header), header);
return -1;
}
/* Skip most of it */
while (i<MAX_FRAME_HEADER && fgetc(h->fh) != '\n')
i++;
if (i == MAX_FRAME_HEADER)
{
fprintf(stderr, "Bad frame header!\n");
return -1;
}
h->frame_header_len = i+slen+1;
if( fread(p_pic->img.plane[0], 1, h->width*h->height, h->fh) <= 0
|| fread(p_pic->img.plane[1], 1, h->width * h->height / 4, h->fh) <= 0
|| fread(p_pic->img.plane[2], 1, h->width * h->height / 4, h->fh) <= 0)
return -1;
h->next_frame = i_frame+1;
return 0;
}
int close_file_y4m(hnd_t handle)
{
y4m_input_t *h = handle;
if( !h || !h->fh )
return 0;
fclose( h->fh );
free( h );
return 0;
}
/* avs/avi input file support under cygwin */
#ifdef AVIS_INPUT
typedef struct {
PAVISTREAM p_avi;
int width, height;
} avis_input_t;
int open_file_avis( char *psz_filename, hnd_t *p_handle, x264_param_t *p_param )
{
avis_input_t *h = malloc(sizeof(avis_input_t));
AVISTREAMINFO info;
int i;
*p_handle = (hnd_t)h;
AVIFileInit();
if( AVIStreamOpenFromFile( &h->p_avi, psz_filename, streamtypeVIDEO, 0, OF_READ, NULL ) )
{
AVIFileExit();
return -1;
}
if( AVIStreamInfo(h->p_avi, &info, sizeof(AVISTREAMINFO)) )
{
AVIStreamRelease(h->p_avi);
AVIFileExit();
return -1;
}
// check input format
if (info.fccHandler != MAKEFOURCC('Y', 'V', '1', '2'))
{
fprintf( stderr, "avis [error]: unsupported input format (%c%c%c%c)\n",
(char)(info.fccHandler & 0xff), (char)((info.fccHandler >> 8) & 0xff),
(char)((info.fccHandler >> 16) & 0xff), (char)((info.fccHandler >> 24)) );
AVIStreamRelease(h->p_avi);
AVIFileExit();
return -1;
}
h->width =
p_param->i_width = info.rcFrame.right - info.rcFrame.left;
h->height =
p_param->i_height = info.rcFrame.bottom - info.rcFrame.top;
i = gcd(info.dwRate, info.dwScale);
p_param->i_fps_den = info.dwScale / i;
p_param->i_fps_num = info.dwRate / i;
fprintf( stderr, "avis [info]: %dx%d @ %.2f fps (%d frames)\n",
p_param->i_width, p_param->i_height,
(double)p_param->i_fps_num / (double)p_param->i_fps_den,
(int)info.dwLength );
return 0;
}
int get_frame_total_avis( hnd_t handle )
{
avis_input_t *h = handle;
AVISTREAMINFO info;
if( AVIStreamInfo(h->p_avi, &info, sizeof(AVISTREAMINFO)) )
return -1;
return info.dwLength;
}
int read_frame_avis( x264_picture_t *p_pic, hnd_t handle, int i_frame )
{
avis_input_t *h = handle;
p_pic->img.i_csp = X264_CSP_YV12;
if( AVIStreamRead(h->p_avi, i_frame, 1, p_pic->img.plane[0], h->width * h->height * 3 / 2, NULL, NULL ) )
return -1;
return 0;
}
int close_file_avis( hnd_t handle )
{
avis_input_t *h = handle;
AVIStreamRelease(h->p_avi);
AVIFileExit();
free(h);
return 0;
}
#endif
#ifdef HAVE_PTHREAD
typedef struct {
int (*p_read_frame)( x264_picture_t *p_pic, hnd_t handle, int i_frame );
int (*p_close_infile)( hnd_t handle );
hnd_t p_handle;
x264_picture_t pic;
x264_pthread_t tid;
int next_frame;
int frame_total;
struct thread_input_arg_t *next_args;
} thread_input_t;
typedef struct thread_input_arg_t {
thread_input_t *h;
x264_picture_t *pic;
int i_frame;
int status;
} thread_input_arg_t;
int open_file_thread( char *psz_filename, hnd_t *p_handle, x264_param_t *p_param )
{
thread_input_t *h = malloc(sizeof(thread_input_t));
x264_picture_alloc( &h->pic, X264_CSP_I420, p_param->i_width, p_param->i_height );
h->p_read_frame = p_read_frame;
h->p_close_infile = p_close_infile;
h->p_handle = *p_handle;
h->next_frame = -1;
h->next_args = malloc(sizeof(thread_input_arg_t));
h->next_args->h = h;
h->next_args->status = 0;
h->frame_total = p_get_frame_total( h->p_handle );
*p_handle = (hnd_t)h;
return 0;
}
int get_frame_total_thread( hnd_t handle )
{
thread_input_t *h = handle;
return h->frame_total;
}
void read_frame_thread_int( thread_input_arg_t *i )
{
i->status = i->h->p_read_frame( i->pic, i->h->p_handle, i->i_frame );
}
int read_frame_thread( x264_picture_t *p_pic, hnd_t handle, int i_frame )
{
thread_input_t *h = handle;
UNUSED void *stuff;
int ret = 0;
if( h->next_frame >= 0 )
{
x264_pthread_join( h->tid, &stuff );
ret |= h->next_args->status;
}
if( h->next_frame == i_frame )
{
XCHG( x264_picture_t, *p_pic, h->pic );
}
else
{
ret |= h->p_read_frame( p_pic, h->p_handle, i_frame );
}
if( !h->frame_total || i_frame+1 < h->frame_total )
{
h->next_frame =
h->next_args->i_frame = i_frame+1;
h->next_args->pic = &h->pic;
x264_pthread_create( &h->tid, NULL, (void*)read_frame_thread_int, h->next_args );
}
else
h->next_frame = -1;
return ret;
}
int close_file_thread( hnd_t handle )
{
thread_input_t *h = handle;
h->p_close_infile( h->p_handle );
x264_picture_clean( &h->pic );
free( h );
return 0;
}
#endif
int open_file_bsf( char *psz_filename, hnd_t *p_handle )
{
if ((*p_handle = fopen(psz_filename, "w+b")) == NULL)
return -1;
return 0;
}
int set_param_bsf( hnd_t handle, x264_param_t *p_param )
{
return 0;
}
int write_nalu_bsf( hnd_t handle, uint8_t *p_nalu, int i_size )
{
if (fwrite(p_nalu, i_size, 1, (FILE *)handle) > 0)
return i_size;
return -1;
}
int set_eop_bsf( hnd_t handle, x264_picture_t *p_picture )
{
return 0;
}
int close_file_bsf( hnd_t handle )
{
if ((handle == NULL) || (handle == stdout))
return 0;
return fclose((FILE *)handle);
}
/* -- mp4 muxing support ------------------------------------------------- */
#ifdef MP4_OUTPUT
typedef struct
{
GF_ISOFile *p_file;
GF_AVCConfig *p_config;
GF_ISOSample *p_sample;
int i_track;
uint32_t i_descidx;
int i_time_inc;
int i_time_res;
int i_numframe;
int i_init_delay;
uint8_t b_sps;
uint8_t b_pps;
} mp4_t;
void recompute_bitrate_mp4(GF_ISOFile *p_file, int i_track)
{
u32 i, count, di, timescale, time_wnd, rate;
u64 offset;
Double br;
GF_ESD *esd;
esd = gf_isom_get_esd(p_file, i_track, 1);
if (!esd) return;
esd->decoderConfig->avgBitrate = 0;
esd->decoderConfig->maxBitrate = 0;
rate = time_wnd = 0;
timescale = gf_isom_get_media_timescale(p_file, i_track);
count = gf_isom_get_sample_count(p_file, i_track);
for (i=0; i<count; i++) {
GF_ISOSample *samp = gf_isom_get_sample_info(p_file, i_track, i+1, &di, &offset);
if (samp->dataLength>esd->decoderConfig->bufferSizeDB) esd->decoderConfig->bufferSizeDB = samp->dataLength;
if (esd->decoderConfig->bufferSizeDB < samp->dataLength) esd->decoderConfig->bufferSizeDB = samp->dataLength;
esd->decoderConfig->avgBitrate += samp->dataLength;
rate += samp->dataLength;
if (samp->DTS > time_wnd + timescale) {
if (rate > esd->decoderConfig->maxBitrate) esd->decoderConfig->maxBitrate = rate;
time_wnd = samp->DTS;
rate = 0;
}
gf_isom_sample_del(&samp);
}
br = (Double) (s64) gf_isom_get_media_duration(p_file, i_track);
br /= timescale;
esd->decoderConfig->avgBitrate = (u32) (esd->decoderConfig->avgBitrate / br);
/*move to bps*/
esd->decoderConfig->avgBitrate *= 8;
esd->decoderConfig->maxBitrate *= 8;
gf_isom_change_mpeg4_description(p_file, i_track, 1, esd);
gf_odf_desc_del((GF_Descriptor *) esd);
}
int close_file_mp4( hnd_t handle )
{
mp4_t *p_mp4 = (mp4_t *)handle;
if (p_mp4 == NULL)
return 0;
if (p_mp4->p_config)
gf_odf_avc_cfg_del(p_mp4->p_config);
if (p_mp4->p_sample)
{
if (p_mp4->p_sample->data)
free(p_mp4->p_sample->data);
gf_isom_sample_del(&p_mp4->p_sample);
}
if (p_mp4->p_file)
{
recompute_bitrate_mp4(p_mp4->p_file, p_mp4->i_track);
gf_isom_set_pl_indication(p_mp4->p_file, GF_ISOM_PL_VISUAL, 0x15);
gf_isom_set_storage_mode(p_mp4->p_file, GF_ISOM_STORE_FLAT);
gf_isom_close(p_mp4->p_file);
}
free(p_mp4);
return 0;
}
int open_file_mp4( char *psz_filename, hnd_t *p_handle )
{
mp4_t *p_mp4;
*p_handle = NULL;
if ((p_mp4 = (mp4_t *)malloc(sizeof(mp4_t))) == NULL)
return -1;
memset(p_mp4, 0, sizeof(mp4_t));
p_mp4->p_file = gf_isom_open(psz_filename, GF_ISOM_OPEN_WRITE, NULL);
if ((p_mp4->p_sample = gf_isom_sample_new()) == NULL)
{
close_file_mp4( p_mp4 );
return -1;
}
gf_isom_set_brand_info(p_mp4->p_file, GF_ISOM_BRAND_AVC1, 0);
*p_handle = p_mp4;
return 0;
}
int set_param_mp4( hnd_t handle, x264_param_t *p_param )
{
mp4_t *p_mp4 = (mp4_t *)handle;
p_mp4->i_track = gf_isom_new_track(p_mp4->p_file, 0, GF_ISOM_MEDIA_VISUAL,
p_param->i_fps_num);
p_mp4->p_config = gf_odf_avc_cfg_new();
gf_isom_avc_config_new(p_mp4->p_file, p_mp4->i_track, p_mp4->p_config,
NULL, NULL, &p_mp4->i_descidx);
gf_isom_set_track_enabled(p_mp4->p_file, p_mp4->i_track, 1);
gf_isom_set_visual_info(p_mp4->p_file, p_mp4->i_track, p_mp4->i_descidx,
p_param->i_width, p_param->i_height);
p_mp4->p_sample->data = (char *)malloc(p_param->i_width * p_param->i_height * 3 / 2);
if (p_mp4->p_sample->data == NULL)
return -1;
p_mp4->i_time_res = p_param->i_fps_num;
p_mp4->i_time_inc = p_param->i_fps_den;
p_mp4->i_init_delay = p_param->i_bframe ? (p_param->b_bframe_pyramid ? 2 : 1) : 0;
p_mp4->i_init_delay *= p_mp4->i_time_inc;
fprintf(stderr, "mp4 [info]: initial delay %d (scale %d)\n",
p_mp4->i_init_delay, p_mp4->i_time_res);
return 0;
}
int write_nalu_mp4( hnd_t handle, uint8_t *p_nalu, int i_size )
{
mp4_t *p_mp4 = (mp4_t *)handle;
GF_AVCConfigSlot *p_slot;
uint8_t type = p_nalu[4] & 0x1f;
int psize;
switch(type)
{
// sps
case 0x07:
if (!p_mp4->b_sps)
{
p_mp4->p_config->configurationVersion = 1;
p_mp4->p_config->AVCProfileIndication = p_nalu[5];
p_mp4->p_config->profile_compatibility = p_nalu[6];
p_mp4->p_config->AVCLevelIndication = p_nalu[7];
p_slot = (GF_AVCConfigSlot *)malloc(sizeof(GF_AVCConfigSlot));
p_slot->size = i_size - 4;
p_slot->data = (char *)malloc(p_slot->size);
memcpy(p_slot->data, p_nalu + 4, i_size - 4);
gf_list_add(p_mp4->p_config->sequenceParameterSets, p_slot);
p_slot = NULL;
p_mp4->b_sps = 1;
}
break;
// pps
case 0x08:
if (!p_mp4->b_pps)
{
p_slot = (GF_AVCConfigSlot *)malloc(sizeof(GF_AVCConfigSlot));
p_slot->size = i_size - 4;
p_slot->data = (char *)malloc(p_slot->size);
memcpy(p_slot->data, p_nalu + 4, i_size - 4);
gf_list_add(p_mp4->p_config->pictureParameterSets, p_slot);
p_slot = NULL;
p_mp4->b_pps = 1;
if (p_mp4->b_sps)
gf_isom_avc_config_update(p_mp4->p_file, p_mp4->i_track, 1, p_mp4->p_config);
}
break;
// slice, sei
case 0x1:
case 0x5:
case 0x6:
psize = i_size - 4 ;
memcpy(p_mp4->p_sample->data + p_mp4->p_sample->dataLength, p_nalu, i_size);
p_mp4->p_sample->data[p_mp4->p_sample->dataLength + 0] = (psize >> 24) & 0xff;
p_mp4->p_sample->data[p_mp4->p_sample->dataLength + 1] = (psize >> 16) & 0xff;
p_mp4->p_sample->data[p_mp4->p_sample->dataLength + 2] = (psize >> 8) & 0xff;
p_mp4->p_sample->data[p_mp4->p_sample->dataLength + 3] = (psize >> 0) & 0xff;
p_mp4->p_sample->dataLength += i_size;
break;
}
return i_size;
}
int set_eop_mp4( hnd_t handle, x264_picture_t *p_picture )
{
mp4_t *p_mp4 = (mp4_t *)handle;
uint64_t dts = (uint64_t)p_mp4->i_numframe * p_mp4->i_time_inc;
uint64_t pts = (uint64_t)p_picture->i_pts;
int32_t offset = p_mp4->i_init_delay + pts - dts;
p_mp4->p_sample->IsRAP = p_picture->i_type == X264_TYPE_IDR ? 1 : 0;
p_mp4->p_sample->DTS = dts;
p_mp4->p_sample->CTS_Offset = offset;
gf_isom_add_sample(p_mp4->p_file, p_mp4->i_track, p_mp4->i_descidx, p_mp4->p_sample);
p_mp4->p_sample->dataLength = 0;
p_mp4->i_numframe++;
return 0;
}
#endif
/* -- mkv muxing support ------------------------------------------------- */
typedef struct
{
mk_Writer *w;
uint8_t *sps, *pps;
int sps_len, pps_len;
int width, height, d_width, d_height;
int64_t frame_duration;
int fps_num;
int b_header_written;
char b_writing_frame;
} mkv_t;
int write_header_mkv( mkv_t *p_mkv )
{
int ret;
uint8_t *avcC;
int avcC_len;
if( p_mkv->sps == NULL || p_mkv->pps == NULL ||
p_mkv->width == 0 || p_mkv->height == 0 ||
p_mkv->d_width == 0 || p_mkv->d_height == 0)
return -1;
avcC_len = 5 + 1 + 2 + p_mkv->sps_len + 1 + 2 + p_mkv->pps_len;
avcC = malloc(avcC_len);
if (avcC == NULL)
return -1;
avcC[0] = 1;
avcC[1] = p_mkv->sps[1];
avcC[2] = p_mkv->sps[2];
avcC[3] = p_mkv->sps[3];
avcC[4] = 0xff; // nalu size length is four bytes
avcC[5] = 0xe1; // one sps
avcC[6] = p_mkv->sps_len >> 8;
avcC[7] = p_mkv->sps_len;
memcpy(avcC+8, p_mkv->sps, p_mkv->sps_len);
avcC[8+p_mkv->sps_len] = 1; // one pps
avcC[9+p_mkv->sps_len] = p_mkv->pps_len >> 8;
avcC[10+p_mkv->sps_len] = p_mkv->pps_len;
memcpy( avcC+11+p_mkv->sps_len, p_mkv->pps, p_mkv->pps_len );
ret = mk_writeHeader( p_mkv->w, "x264", "V_MPEG4/ISO/AVC",
avcC, avcC_len, p_mkv->frame_duration, 50000,
p_mkv->width, p_mkv->height,
p_mkv->d_width, p_mkv->d_height );
free( avcC );
p_mkv->b_header_written = 1;
return ret;
}
int open_file_mkv( char *psz_filename, hnd_t *p_handle )
{
mkv_t *p_mkv;
*p_handle = NULL;
p_mkv = malloc(sizeof(*p_mkv));
if (p_mkv == NULL)
return -1;
memset(p_mkv, 0, sizeof(*p_mkv));
p_mkv->w = mk_createWriter(psz_filename);
if (p_mkv->w == NULL)
{
free(p_mkv);
return -1;
}
*p_handle = p_mkv;
return 0;
}
int set_param_mkv( hnd_t handle, x264_param_t *p_param )
{
mkv_t *p_mkv = handle;
int64_t dw, dh;
if( p_param->i_fps_num > 0 )
{
p_mkv->frame_duration = (int64_t)p_param->i_fps_den *
(int64_t)1000000000 / p_param->i_fps_num;
p_mkv->fps_num = p_param->i_fps_num;
}
else
{
p_mkv->frame_duration = 0;
p_mkv->fps_num = 1;
}
p_mkv->width = p_param->i_width;
p_mkv->height = p_param->i_height;
if( p_param->vui.i_sar_width && p_param->vui.i_sar_height )
{
dw = (int64_t)p_param->i_width * p_param->vui.i_sar_width;
dh = (int64_t)p_param->i_height * p_param->vui.i_sar_height;
}
else
{
dw = p_param->i_width;
dh = p_param->i_height;
}
if( dw > 0 && dh > 0 )
{
int64_t x = gcd( dw, dh );
dw /= x;
dh /= x;
}
p_mkv->d_width = (int)dw;
p_mkv->d_height = (int)dh;
return 0;
}
int write_nalu_mkv( hnd_t handle, uint8_t *p_nalu, int i_size )
{
mkv_t *p_mkv = handle;
uint8_t type = p_nalu[4] & 0x1f;
uint8_t dsize[4];
int psize;
switch( type )
{
// sps
case 0x07:
if( !p_mkv->sps )
{
p_mkv->sps = malloc(i_size - 4);
if (p_mkv->sps == NULL)
return -1;
p_mkv->sps_len = i_size - 4;
memcpy(p_mkv->sps, p_nalu + 4, i_size - 4);
}
break;
// pps
case 0x08:
if( !p_mkv->pps )
{
p_mkv->pps = malloc(i_size - 4);
if (p_mkv->pps == NULL)
return -1;
p_mkv->pps_len = i_size - 4;
memcpy(p_mkv->pps, p_nalu + 4, i_size - 4);
}
break;
// slice, sei
case 0x1:
case 0x5:
case 0x6:
if( !p_mkv->b_writing_frame )
{
if( mk_startFrame(p_mkv->w) < 0 )
return -1;
p_mkv->b_writing_frame = 1;
}
psize = i_size - 4 ;
dsize[0] = psize >> 24;
dsize[1] = psize >> 16;
dsize[2] = psize >> 8;
dsize[3] = psize;
if( mk_addFrameData(p_mkv->w, dsize, 4) < 0 ||
mk_addFrameData(p_mkv->w, p_nalu + 4, i_size - 4) < 0 )
return -1;
break;
default:
break;
}
if( !p_mkv->b_header_written && p_mkv->pps && p_mkv->sps &&
write_header_mkv(p_mkv) < 0 )
return -1;
return i_size;
}
int set_eop_mkv( hnd_t handle, x264_picture_t *p_picture )
{
mkv_t *p_mkv = handle;
int64_t i_stamp = (int64_t)(p_picture->i_pts * 1e9 / p_mkv->fps_num);
p_mkv->b_writing_frame = 0;
return mk_setFrameFlags( p_mkv->w, i_stamp,
p_picture->i_type == X264_TYPE_IDR );
}
int close_file_mkv( hnd_t handle )
{
mkv_t *p_mkv = handle;
int ret;
if( p_mkv->sps )
free( p_mkv->sps );
if( p_mkv->pps )
free( p_mkv->pps );
ret = mk_close(p_mkv->w);
free( p_mkv );
return ret;
}
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