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-rw-r--r--Changelog1
-rw-r--r--libavformat/version.h2
-rw-r--r--libavformat/voc.h1
-rw-r--r--libavformat/vocdec.c44
-rw-r--r--tests/ref/seek/lavf-voc51
5 files changed, 80 insertions, 19 deletions
diff --git a/Changelog b/Changelog
index cc6a9eccb6..bb53059cbf 100644
--- a/Changelog
+++ b/Changelog
@@ -12,6 +12,7 @@ version <next>:
- cropdetect support for non 8bpp, absolute (if limit >= 1) and relative (if limit < 1.0) threshold
- Camellia symmetric block cipher
- OpenH264 encoder wrapper
+- VOC seeking support
version 2.5:
diff --git a/libavformat/version.h b/libavformat/version.h
index d5c8f6b0c2..5e449bb510 100644
--- a/libavformat/version.h
+++ b/libavformat/version.h
@@ -31,7 +31,7 @@
#define LIBAVFORMAT_VERSION_MAJOR 56
#define LIBAVFORMAT_VERSION_MINOR 18
-#define LIBAVFORMAT_VERSION_MICRO 100
+#define LIBAVFORMAT_VERSION_MICRO 101
#define LIBAVFORMAT_VERSION_INT AV_VERSION_INT(LIBAVFORMAT_VERSION_MAJOR, \
LIBAVFORMAT_VERSION_MINOR, \
diff --git a/libavformat/voc.h b/libavformat/voc.h
index 08db970ae6..1f9a8be000 100644
--- a/libavformat/voc.h
+++ b/libavformat/voc.h
@@ -27,6 +27,7 @@
typedef struct voc_dec_context {
int64_t remaining_size;
+ int64_t pts;
} VocDecContext;
typedef enum voc_type {
diff --git a/libavformat/vocdec.c b/libavformat/vocdec.c
index 0b6b5a59ae..c49ed163cb 100644
--- a/libavformat/vocdec.c
+++ b/libavformat/vocdec.c
@@ -71,6 +71,15 @@ ff_voc_get_packet(AVFormatContext *s, AVPacket *pkt, AVStream *st, int max_size)
int size, tmp_codec=-1;
int sample_rate = 0;
int channels = 1;
+ int64_t duration;
+ int ret;
+
+ av_add_index_entry(st,
+ avio_tell(pb),
+ voc->pts,
+ voc->remaining_size,
+ 0,
+ AVINDEX_KEYFRAME);
while (!voc->remaining_size) {
type = avio_r8(pb);
@@ -156,7 +165,17 @@ ff_voc_get_packet(AVFormatContext *s, AVPacket *pkt, AVStream *st, int max_size)
max_size = 2048;
size = FFMIN(voc->remaining_size, max_size);
voc->remaining_size -= size;
- return av_get_packet(pb, pkt, size);
+
+ ret = av_get_packet(pb, pkt, size);
+ pkt->dts = pkt->pts = voc->pts;
+
+ duration = av_get_audio_frame_duration(st->codec, size);
+ if (duration > 0 && voc->pts != AV_NOPTS_VALUE)
+ voc->pts += duration;
+ else
+ voc->pts = AV_NOPTS_VALUE;
+
+ return ret;
}
static int voc_read_packet(AVFormatContext *s, AVPacket *pkt)
@@ -164,6 +183,28 @@ static int voc_read_packet(AVFormatContext *s, AVPacket *pkt)
return ff_voc_get_packet(s, pkt, s->streams[0], 0);
}
+static int voc_read_seek(AVFormatContext *s, int stream_index,
+ int64_t timestamp, int flags)
+{
+ VocDecContext *voc = s->priv_data;
+ AVStream *st = s->streams[stream_index];
+ int index = av_index_search_timestamp(st, timestamp, flags);
+
+ if (index >= 0 && index < st->nb_index_entries - 1) {
+ AVIndexEntry *e = &st->index_entries[index];
+ avio_seek(s->pb, e->pos, SEEK_SET);
+ voc->pts = e->timestamp;
+ voc->remaining_size = e->size;
+ return 0;
+ } else if (st->nb_index_entries && st->index_entries[0].timestamp <= timestamp) {
+ AVIndexEntry *e = &st->index_entries[st->nb_index_entries - 1];
+ // prepare context for seek_frame_generic()
+ voc->pts = e->timestamp;
+ voc->remaining_size = e->size;
+ }
+ return -1;
+}
+
AVInputFormat ff_voc_demuxer = {
.name = "voc",
.long_name = NULL_IF_CONFIG_SMALL("Creative Voice"),
@@ -171,5 +212,6 @@ AVInputFormat ff_voc_demuxer = {
.read_probe = voc_probe,
.read_header = voc_read_header,
.read_packet = voc_read_packet,
+ .read_seek = voc_read_seek,
.codec_tag = (const AVCodecTag* const []){ ff_voc_codec_tags, 0 },
};
diff --git a/tests/ref/seek/lavf-voc b/tests/ref/seek/lavf-voc
index 833d763e52..483c782e78 100644
--- a/tests/ref/seek/lavf-voc
+++ b/tests/ref/seek/lavf-voc
@@ -1,27 +1,44 @@
ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 32 size: 1024
-ret:-1 st:-1 flags:0 ts:-1.000000
-ret:-1 st:-1 flags:1 ts: 1.894167
-ret:-1 st: 0 flags:0 ts: 0.788330
+ret: 0 st:-1 flags:0 ts:-1.000000
+ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 32 size: 1024
+ret: 0 st:-1 flags:1 ts: 1.894167
+ret:-EOF
+ret: 0 st: 0 flags:0 ts: 0.788330
+ret: 0 st: 0 flags:1 dts: 0.800773 pts: 0.800773 pos: 33956 size: 1024
ret:-1 st: 0 flags:1 ts:-0.317494
ret:-1 st:-1 flags:0 ts: 2.576668
-ret:-1 st:-1 flags:1 ts: 1.470835
-ret:-1 st: 0 flags:0 ts: 0.365012
+ret: 0 st:-1 flags:1 ts: 1.470835
+ret:-EOF
+ret: 0 st: 0 flags:0 ts: 0.365012
+ret: 0 st: 0 flags:1 dts: 0.376834 pts: 0.376834 pos: 15452 size: 1024
ret:-1 st: 0 flags:1 ts:-0.740834
ret:-1 st:-1 flags:0 ts: 2.153336
-ret:-1 st:-1 flags:1 ts: 1.047503
-ret:-1 st: 0 flags:0 ts:-0.058328
-ret:-1 st: 0 flags:1 ts: 2.835848
+ret: 0 st:-1 flags:1 ts: 1.047503
+ret:-EOF
+ret: 0 st: 0 flags:0 ts:-0.058328
+ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 32 size: 1024
+ret: 0 st: 0 flags:1 ts: 2.835848
+ret:-EOF
ret:-1 st:-1 flags:0 ts: 1.730004
-ret:-1 st:-1 flags:1 ts: 0.624171
-ret:-1 st: 0 flags:0 ts:-0.481669
-ret:-1 st: 0 flags:1 ts: 2.412507
+ret: 0 st:-1 flags:1 ts: 0.624171
+ret: 0 st: 0 flags:1 dts: 0.612356 pts: 0.612356 pos: 25732 size: 1024
+ret: 0 st: 0 flags:0 ts:-0.481669
+ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 32 size: 1024
+ret: 0 st: 0 flags:1 ts: 2.412507
+ret:-EOF
ret:-1 st:-1 flags:0 ts: 1.306672
-ret:-1 st:-1 flags:1 ts: 0.200839
-ret:-1 st: 0 flags:0 ts:-0.904986
-ret:-1 st: 0 flags:1 ts: 1.989167
-ret:-1 st:-1 flags:0 ts: 0.883340
+ret: 0 st:-1 flags:1 ts: 0.200839
+ret: 0 st: 0 flags:1 dts: 0.188417 pts: 0.188417 pos: 7228 size: 1024
+ret: 0 st: 0 flags:0 ts:-0.904986
+ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 32 size: 1024
+ret: 0 st: 0 flags:1 ts: 1.989167
+ret:-EOF
+ret: 0 st:-1 flags:0 ts: 0.883340
+ret: 0 st: 0 flags:1 dts: 0.894981 pts: 0.894981 pos: 38068 size: 1024
ret:-1 st:-1 flags:1 ts:-0.222493
ret:-1 st: 0 flags:0 ts: 2.671673
-ret:-1 st: 0 flags:1 ts: 1.565849
-ret:-1 st:-1 flags:0 ts: 0.460008
+ret: 0 st: 0 flags:1 ts: 1.565849
+ret:-EOF
+ret: 0 st:-1 flags:0 ts: 0.460008
+ret: 0 st: 0 flags:1 dts: 0.471043 pts: 0.471043 pos: 19564 size: 1024
ret:-1 st:-1 flags:1 ts:-0.645825
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-21 23:10:40 +0000