@ -36,7 +36,7 @@ typedef struct {
int is_pipe ;
int split_planes ; /**< use independent file for each Y, U, V plane */
char path [ 1024 ] ;
int updatefirst ;
int update ;
} VideoMuxData ;
static int write_header ( AVFormatContext * s )
@ -75,8 +75,10 @@ static int write_packet(AVFormatContext *s, AVPacket *pkt)
int i ;
if ( ! img - > is_pipe ) {
if ( av_get_frame_filename ( filename , sizeof ( filename ) ,
img - > path , img - > img_number ) < 0 & & img - > img_number > 1 & & ! img - > updatefirst ) {
if ( img - > update ) {
av_strlcpy ( filename , img - > path , sizeof ( filename ) ) ;
} else if ( av_get_frame_filename ( filename , sizeof ( filename ) , img - > path , img - > img_number ) < 0 & &
img - > img_number > 1 ) {
av_log ( s , AV_LOG_ERROR ,
" Could not get frame filename number %d from pattern '%s' (either set updatefirst or use a pattern like %%03d within the filename pattern) \n " ,
img - > img_number , img - > path ) ;
@ -128,7 +130,8 @@ static int write_packet(AVFormatContext *s, AVPacket *pkt)
# define OFFSET(x) offsetof(VideoMuxData, x)
# define ENC AV_OPT_FLAG_ENCODING_PARAM
static const AVOption muxoptions [ ] = {
{ " updatefirst " , " update the first image file " , OFFSET ( updatefirst ) , AV_OPT_TYPE_INT , { . i64 = 0 } , 0 , 1 , ENC } ,
{ " updatefirst " , " continuously overwrite one file " , OFFSET ( update ) , AV_OPT_TYPE_INT , { . i64 = 0 } , 0 , 1 , ENC } ,
{ " update " , " continuously overwrite one file " , OFFSET ( update ) , AV_OPT_TYPE_INT , { . i64 = 0 } , 0 , 1 , ENC } ,
{ " start_number " , " set first number in the sequence " , OFFSET ( img_number ) , AV_OPT_TYPE_INT , { . i64 = 1 } , 1 , INT_MAX , ENC } ,
{ NULL } ,
} ;