Start image number was hardcoded to 1 for the first image check.
Signed-off-by: Marton Balint <c...@passwd.hu>
---
libavformat/img2enc.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/libavformat/img2enc.c b/libavformat/img2enc.c
index b3a0801ec9..82a04e639b 100644
--- a/libavformat/img2enc.c
+++ b/libavformat/img2enc.c
@@ -36,6 +36,7 @@
typedef struct VideoMuxData {
const AVClass *class; /**< Class for private options. */
+ int start_img_number;
int img_number;
int split_planes; /**< use independent file for each Y, U, V plane */
char tmp[4][1024];
@@ -69,6 +70,7 @@ static int write_header(AVFormatContext *s)
&&(desc->flags & AV_PIX_FMT_FLAG_PLANAR)
&& desc->nb_components >= 3;
}
+ img->img_number = img->start_img_number;
return 0;
}
@@ -162,7 +164,7 @@ static int write_packet(AVFormatContext *s, AVPacket *pkt)
} else if (av_get_frame_filename2(filename, sizeof(filename), s->url,
img->img_number,
AV_FRAME_FILENAME_FLAGS_MULTIPLE) < 0 &&
- img->img_number > 1) {
+ img->img_number > img->start_img_number) {
av_log(s, AV_LOG_ERROR,
"Could not get frame filename number %d from pattern '%s'. "
"Use '-frames:v 1' for a single image, or '-update' option, or
use a pattern such as %%03d within the filename.\n",
@@ -246,7 +248,7 @@ static int query_codec(enum AVCodecID id, int
std_compliance)
#define ENC AV_OPT_FLAG_ENCODING_PARAM
static const AVOption muxoptions[] = {
{ "update", "continuously overwrite one file", OFFSET(update),
AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, ENC },
- { "start_number", "set first number in the sequence", OFFSET(img_number),
AV_OPT_TYPE_INT, { .i64 = 1 }, 0, INT_MAX, ENC },
+ { "start_number", "set first number in the sequence",
OFFSET(start_img_number), AV_OPT_TYPE_INT, { .i64 = 1 }, 0, INT_MAX, ENC },
{ "strftime", "use strftime for filename", OFFSET(use_strftime),
AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, ENC },
{ "frame_pts", "use current frame pts for filename", OFFSET(frame_pts),
AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, ENC },
{ "atomic_writing", "write files atomically (using temporary files and
renames)", OFFSET(use_rename), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, ENC },
--
2.34.1
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