On date Monday 2014-08-11 17:39:37 +0800, Steven Liu encoded:
> Hi Guys,
>
> The FFmpeg hls module can make m3u8 and ts, but it dosen't delete the
> old ts segment file.
> If always run this module, the disk will full, so this patch can fix
> the problem.
> When update the segment list m3u8 file, it will delete the ts segment
> out range from the list file.
>
> before use this patch:
> [root@localhost ffmpeg]# ls *.ts *.m3u8
> a0.ts a10.ts a11.ts a12.ts a13.ts a14.ts a15.ts a16.ts a17.ts
> a18.ts a19.ts a1.ts a20.ts a2.ts a3.ts a4.ts a5.ts a6.ts a7.ts
> a8.ts a9.ts a.m3u8
> [root@localhost ffmpeg]# cat a.m3u8
> #EXTM3U
> #EXT-X-VERSION:3
> #EXT-X-TARGETDURATION:11
> #EXT-X-MEDIA-SEQUENCE:16
> #EXTINF:10.427075,
> a16.ts
> #EXTINF:10.427075,
> a17.ts
> #EXTINF:10.427075,
> a18.ts
> #EXTINF:10.427075,
> a19.ts
> #EXTINF:3.670330,
> a20.ts
> #EXT-X-ENDLIST
> [root@localhost ffmpeg]#
>
> after use this patch:
> [root@localhost ffmpeg]# ls *.ts *.m3u8
> a10.ts a11.ts a12.ts a13.ts a9.ts a.m3u8
> [root@localhost ffmpeg]# cat a.m3u8
> #EXTM3U
> #EXT-X-VERSION:3
> #EXT-X-TARGETDURATION:11
> #EXT-X-MEDIA-SEQUENCE:9
> #EXTINF:10.427075,
> a9.ts
> #EXTINF:10.427075,
> a10.ts
> #EXTINF:10.427075,
> a11.ts
> #EXTINF:10.427075,
> a12.ts
> #EXTINF:2.335665,
> a13.ts
> #EXT-X-ENDLIST
> [root@localhost ffmpeg]#
>
> -------------------------------------------
> The patch context:
>
> when update the hls m3u8 list, the old file is not unlinked
> this patch can do this operation
>
> Signed-off-by: Steven Liu <qi....@chinacache.com>
> ---
> libavformat/hlsenc.c | 5 +++++
> 1 files changed, 5 insertions(+), 0 deletions(-)
>
> diff --git a/libavformat/hlsenc.c b/libavformat/hlsenc.c
> index 11f1e5b..2ee0970 100644
> --- a/libavformat/hlsenc.c
> +++ b/libavformat/hlsenc.c
> @@ -30,6 +30,10 @@
>
> #include "avformat.h"
> #include "internal.h"
> +#if HAVE_UNISTD_H
> +#include <unistd.h>
> +#endif
> +
>
> typedef struct HLSSegment {
> char filename[1024];
> @@ -115,6 +119,7 @@ static int hls_append_segment(HLSContext *hls, double
> duration)
> if (hls->max_nb_segments && hls->nb_entries >= hls->max_nb_segments) {
> en = hls->segments;
> hls->segments = en->next;
> + unlink(en->filename);
Check for the return value, and log an explicit error message in case
of failure.
> av_free(en);
> } else
> hls->nb_entries++;
Also, in order not to alter the standard behavior, I think it might be
safer to add an option to enable this behavior. Also, what happens if
unistd.h is not available?
--
FFmpeg = Frightening and Forgiving Monstrous Proud Elastic Gadget
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