ffms.c
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/*****************************************************************************
* ffms.c: ffmpegsource input
*****************************************************************************
* Copyright (C) 2009-2024 x264 project
*
* Authors: Mike Gurlitz <mike.gurlitz@gmail.com>
* Steven Walters <kemuri9@gmail.com>
* Henrik Gramner <henrik@gramner.com>
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02111, USA.
*
* This program is also available under a commercial proprietary license.
* For more information, contact us at licensing@x264.com.
*****************************************************************************/
#include "input.h"
#include <ffms.h>
#undef DECLARE_ALIGNED
#include <libavcodec/avcodec.h>
#include <libswscale/swscale.h>
#define FAIL_IF_ERROR( cond, ... ) FAIL_IF_ERR( cond, "ffms", __VA_ARGS__ )
#define PROGRESS_LENGTH 36
typedef struct
{
FFMS_VideoSource *video_source;
FFMS_Track *track;
int reduce_pts;
int vfr_input;
int num_frames;
int64_t time;
} ffms_hnd_t;
static int FFMS_CC update_progress( int64_t current, int64_t total, void *private )
{
int64_t *update_time = private;
int64_t oldtime = *update_time;
int64_t newtime = x264_mdate();
if( oldtime && newtime - oldtime < UPDATE_INTERVAL )
return 0;
*update_time = newtime;
char buf[PROGRESS_LENGTH+5+1];
snprintf( buf, sizeof(buf), "ffms [info]: indexing input file [%.1f%%]", 100.0 * current / total );
fprintf( stderr, "%-*s\r", PROGRESS_LENGTH, buf+5 );
x264_cli_set_console_title( buf );
fflush( stderr );
return 0;
}
/* handle the deprecated jpeg pixel formats */
static int handle_jpeg( int csp, int *fullrange )
{
switch( csp )
{
case AV_PIX_FMT_YUVJ420P: *fullrange = 1; return AV_PIX_FMT_YUV420P;
case AV_PIX_FMT_YUVJ422P: *fullrange = 1; return AV_PIX_FMT_YUV422P;
case AV_PIX_FMT_YUVJ444P: *fullrange = 1; return AV_PIX_FMT_YUV444P;
default: return csp;
}
}
static int open_file( char *psz_filename, hnd_t *p_handle, video_info_t *info, cli_input_opt_t *opt )
{
ffms_hnd_t *h = calloc( 1, sizeof(ffms_hnd_t) );
if( !h )
return -1;
FFMS_Init( 0, 1 );
FFMS_ErrorInfo e;
e.BufferSize = 0;
int seekmode = opt->seek ? FFMS_SEEK_NORMAL : FFMS_SEEK_LINEAR_NO_RW;
FFMS_Index *idx = NULL;
if( opt->index_file )
{
x264_struct_stat index_s, input_s;
if( !x264_stat( opt->index_file, &index_s ) && !x264_stat( psz_filename, &input_s ) && input_s.st_mtime < index_s.st_mtime )
{
idx = FFMS_ReadIndex( opt->index_file, &e );
if( idx && FFMS_IndexBelongsToFile( idx, psz_filename, &e ) )
{
FFMS_DestroyIndex( idx );
idx = NULL;
}
}
}
if( !idx )
{
FFMS_Indexer *indexer = FFMS_CreateIndexer( psz_filename, &e );
FAIL_IF_ERROR( !indexer, "could not create indexer\n" );
if( opt->progress )
FFMS_SetProgressCallback( indexer, update_progress, &h->time );
idx = FFMS_DoIndexing2( indexer, FFMS_IEH_ABORT, &e );
fprintf( stderr, "%*c", PROGRESS_LENGTH+1, '\r' );
FAIL_IF_ERROR( !idx, "could not create index\n" );
if( opt->index_file && FFMS_WriteIndex( opt->index_file, idx, &e ) )
x264_cli_log( "ffms", X264_LOG_WARNING, "could not write index file\n" );
}
int trackno = FFMS_GetFirstTrackOfType( idx, FFMS_TYPE_VIDEO, &e );
if( trackno >= 0 )
h->video_source = FFMS_CreateVideoSource( psz_filename, trackno, idx, 1, seekmode, &e );
FFMS_DestroyIndex( idx );
FAIL_IF_ERROR( trackno < 0, "could not find video track\n" );
FAIL_IF_ERROR( !h->video_source, "could not create video source\n" );
const FFMS_VideoProperties *videop = FFMS_GetVideoProperties( h->video_source );
info->num_frames = h->num_frames = videop->NumFrames;
info->sar_height = videop->SARDen;
info->sar_width = videop->SARNum;
info->fps_den = videop->FPSDenominator;
info->fps_num = videop->FPSNumerator;
h->vfr_input = info->vfr;
/* ffms is thread unsafe as it uses a single frame buffer for all frame requests */
info->thread_safe = 0;
const FFMS_Frame *frame = FFMS_GetFrame( h->video_source, 0, &e );
FAIL_IF_ERROR( !frame, "could not read frame 0\n" );
info->fullrange = 0;
info->width = frame->EncodedWidth;
info->height = frame->EncodedHeight;
info->csp = handle_jpeg( frame->EncodedPixelFormat, &info->fullrange ) | X264_CSP_OTHER;
info->interlaced = frame->InterlacedFrame;
info->tff = frame->TopFieldFirst;
info->fullrange |= frame->ColorRange == FFMS_CR_JPEG;
/* ffms timestamps are in milliseconds. ffms also uses int64_ts for timebase,
* so we need to reduce large timebases to prevent overflow */
if( h->vfr_input )
{
h->track = FFMS_GetTrackFromVideo( h->video_source );
const FFMS_TrackTimeBase *timebase = FFMS_GetTimeBase( h->track );
int64_t timebase_num = timebase->Num;
int64_t timebase_den = timebase->Den * 1000;
h->reduce_pts = 0;
while( timebase_num > UINT32_MAX || timebase_den > INT32_MAX )
{
timebase_num >>= 1;
timebase_den >>= 1;
h->reduce_pts++;
}
info->timebase_num = timebase_num;
info->timebase_den = timebase_den;
}
*p_handle = h;
return 0;
}
static int picture_alloc( cli_pic_t *pic, hnd_t handle, int csp, int width, int height )
{
if( x264_cli_pic_alloc( pic, X264_CSP_NONE, width, height ) )
return -1;
pic->img.csp = csp;
pic->img.planes = 4;
return 0;
}
static int read_frame( cli_pic_t *pic, hnd_t handle, int i_frame )
{
ffms_hnd_t *h = handle;
if( i_frame >= h->num_frames )
return -1;
FFMS_ErrorInfo e;
e.BufferSize = 0;
const FFMS_Frame *frame = FFMS_GetFrame( h->video_source, i_frame, &e );
FAIL_IF_ERROR( !frame, "could not read frame %d \n", i_frame );
memcpy( pic->img.stride, frame->Linesize, sizeof(pic->img.stride) );
memcpy( pic->img.plane, frame->Data, sizeof(pic->img.plane) );
int is_fullrange = 0;
pic->img.width = frame->EncodedWidth;
pic->img.height = frame->EncodedHeight;
pic->img.csp = handle_jpeg( frame->EncodedPixelFormat, &is_fullrange ) | X264_CSP_OTHER;
if( h->vfr_input )
{
const FFMS_FrameInfo *info = FFMS_GetFrameInfo( h->track, i_frame );
FAIL_IF_ERROR( info->PTS == AV_NOPTS_VALUE, "invalid timestamp. "
"Use --force-cfr and specify a framerate with --fps\n" );
pic->pts = info->PTS >> h->reduce_pts;
pic->duration = 0;
}
return 0;
}
static void picture_clean( cli_pic_t *pic, hnd_t handle )
{
memset( pic, 0, sizeof(cli_pic_t) );
}
static int close_file( hnd_t handle )
{
ffms_hnd_t *h = handle;
FFMS_DestroyVideoSource( h->video_source );
free( h );
return 0;
}
const cli_input_t ffms_input = { open_file, picture_alloc, read_frame, NULL, picture_clean, close_file };