From a8e748eee506f86b345323f532a87ab2050a00f2 Mon Sep 17 00:00:00 2001
From: Michael Niedermayer <michaelni@gmx.at>
Date: Mon, 6 Aug 2012 01:25:57 +0200
Subject: [PATCH] lavf: add seek2any to allow forcing seeking to non keyframes
via AVOptions
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
---
libavformat/avformat.h | 7 +++++++
libavformat/options_table.h | 1 +
libavformat/utils.c | 3 +++
3 files changed, 11 insertions(+)
diff --git a/libavformat/avformat.h b/libavformat/avformat.h
index 8330c6b61be..03fca570518 100644
--- a/libavformat/avformat.h
+++ b/libavformat/avformat.h
@@ -1203,6 +1203,13 @@ typedef struct AVFormatContext {
*/
unsigned int correct_ts_overflow;
+ /**
+ * Force seeking to any (also non key) frames.
+ * - encoding: unused
+ * - decoding: Set by user via AVOPtions (NO direct access)
+ */
+ int seek2any;
+
/*****************************************************************
* All fields below this line are not part of the public API. They
* may not be used outside of libavformat and can be changed and
diff --git a/libavformat/options_table.h b/libavformat/options_table.h
index e78e5981f2d..6750050c1f7 100644
--- a/libavformat/options_table.h
+++ b/libavformat/options_table.h
@@ -48,6 +48,7 @@ static const AVOption options[]={
{"keepside", "dont merge side data", 0, AV_OPT_TYPE_CONST, {.i64 = AVFMT_FLAG_KEEP_SIDE_DATA }, INT_MIN, INT_MAX, D, "fflags"},
{"latm", "enable RTP MP4A-LATM payload", 0, AV_OPT_TYPE_CONST, {.i64 = AVFMT_FLAG_MP4A_LATM }, INT_MIN, INT_MAX, E, "fflags"},
{"nobuffer", "reduce the latency introduced by optional buffering", 0, AV_OPT_TYPE_CONST, {.i64 = AVFMT_FLAG_NOBUFFER }, 0, INT_MAX, D, "fflags"},
+{"seek2any", "forces seeking to enable seek to any mode", OFFSET(seek2any), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, 1, D},
{"analyzeduration", "specify how many microseconds are analyzed to probe the input", OFFSET(max_analyze_duration), AV_OPT_TYPE_INT, {.i64 = 5*AV_TIME_BASE }, 0, INT_MAX, D},
{"cryptokey", "decryption key", OFFSET(key), AV_OPT_TYPE_BINARY, {.dbl = 0}, 0, 0, D},
{"indexmem", "max memory used for timestamp index (per stream)", OFFSET(max_index_size), AV_OPT_TYPE_INT, {.i64 = 1<<20 }, 0, INT_MAX, D},
diff --git a/libavformat/utils.c b/libavformat/utils.c
index 97d65583eed..10d2449d286 100644
--- a/libavformat/utils.c
+++ b/libavformat/utils.c
@@ -2092,6 +2092,9 @@ int avformat_seek_file(AVFormatContext *s, int stream_index, int64_t min_ts, int
if(min_ts > ts || max_ts < ts)
return -1;
+ if(s->seek2any>0)
+ flags |= AVSEEK_FLAG_ANY;
+
if (s->iformat->read_seek2) {
int ret;
ff_read_frame_flush(s);
--
GitLab