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lavf/img2enc: extend current options documentation

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This commit is contained in:
Stefano Sabatini 2013-01-24 16:37:49 +01:00
parent 069d156454
commit 1ec3324f00
2 changed files with 9 additions and 4 deletions
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9
doc/muxers.texi
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@ -241,8 +241,13 @@ ffmpeg -i in.avi -f image2 -frames:v 1 img.jpeg
@end example @end example
@table @option @table @option
@item -start_number @var{number} @item start_number @var{number}
Start the sequence from @var{number}. Start the sequence from @var{number}. Default value is 1. Must be a
positive number.
@item updatefirst 1|0
If set to 1, update the first written image file again and
again. Default value is 0.
@end table @end table
The image muxer supports the .Y.U.V image file format. This format is The image muxer supports the .Y.U.V image file format. This format is

4
libavformat/img2enc.c
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@ -128,8 +128,8 @@ static int write_packet(AVFormatContext *s, AVPacket *pkt)
#define OFFSET(x) offsetof(VideoMuxData, x) #define OFFSET(x) offsetof(VideoMuxData, x)
#define ENC AV_OPT_FLAG_ENCODING_PARAM #define ENC AV_OPT_FLAG_ENCODING_PARAM
static const AVOption muxoptions[] = { static const AVOption muxoptions[] = {
{ "updatefirst", "", OFFSET(updatefirst), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, ENC }, { "updatefirst", "update the first image file", OFFSET(updatefirst), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, ENC },
{ "start_number", "first number in the sequence", OFFSET(img_number), AV_OPT_TYPE_INT, { .i64 = 1 }, 1, INT_MAX, ENC }, { "start_number", "set first number in the sequence", OFFSET(img_number), AV_OPT_TYPE_INT, { .i64 = 1 }, 1, INT_MAX, ENC },
{ NULL }, { NULL },
}; };