Here is my new approach with side data.
________________________________
Visit our website: https://www.loewe.tv/int
[Facebook]<https://www.facebook.com/LoeweDeutschland> [Instagram]
<https://www.instagram.com/loewe.international/> [Pinterest]
<https://www.pinterest.com/loewetv/> [YouTube]
<http://www.youtube.com/user/loewe>
Loewe Technologies GmbH, Industriestraße 11, 96317 Kronach
Tel. +49 9261 99-500 • Fax +49 9261 99-515
c...@loewe.de<mailto:c...@loewe.de> • www.loewe.tv<https://www.loewe.tv>
Executive Management: Mark Hüsges, Hans-Henning Doerr, Peter Nortmann, Dr. Ralf
Vogt • Registered Office: Kronach • Commercial Register: Amtsgericht Coburg HRB
5443
From ec14915807d79a9e2c4bbf082d07080fdc86a37b Mon Sep 17 00:00:00 2001
From: gressermdm <dmitrij.gresser...@loewe.de>
Date: Thu, 18 Oct 2018 14:19:53 +0200
Subject: [PATCH] Access to the reference track (dolby vision) of a stream
---
libavcodec/avcodec.h | 6 ++++++
libavformat/dump.c | 22 ++++++++++++++++++++++
libavformat/mov.c | 23 +++++++++++++++++++++++
3 files changed, 51 insertions(+)
diff --git a/libavcodec/avcodec.h b/libavcodec/avcodec.h
index 705a3ce..81b30dc 100644
--- a/libavcodec/avcodec.h
+++ b/libavcodec/avcodec.h
@@ -1372,6 +1372,12 @@ enum AVPacketSideDataType {
AV_PKT_DATA_AFD,
/**
+ * This side data contains an integer value representing the
+ * reference to another dolby track.
+ */
+ AV_PKT_DATA_REFERENCE_TRACK,
+
+ /**
* The number of side data types.
* This is not part of the public API/ABI in the sense that it may
* change when new side data types are added.
diff --git a/libavformat/dump.c b/libavformat/dump.c
index bc0f401..ef20070 100644
--- a/libavformat/dump.c
+++ b/libavformat/dump.c
@@ -380,6 +380,24 @@ static void dump_spherical(void *ctx, AVCodecParameters *par, AVPacketSideData *
}
}
+static void dump_reference_track(void *ctx, AVPacketSideData *sd)
+{
+ uint32_t *track_id;
+
+ if (sd->size < sizeof(uint32_t)) {
+ av_log(ctx, AV_LOG_INFO, "invalid data");
+ return;
+ }
+
+ track_id = (uint32_t *)sd->data;
+
+ if (!track_id) {
+ av_log(ctx, AV_LOG_INFO, "invalid data");
+ return;
+ }
+ av_log(ctx, AV_LOG_INFO, "%"PRIu32"", *track_id);
+}
+
static void dump_sidedata(void *ctx, AVStream *st, const char *indent)
{
int i;
@@ -439,6 +457,10 @@ static void dump_sidedata(void *ctx, AVStream *st, const char *indent)
case AV_PKT_DATA_CONTENT_LIGHT_LEVEL:
dump_content_light_metadata(ctx, &sd);
break;
+ case AV_PKT_DATA_REFERENCE_TRACK:
+ av_log(ctx, AV_LOG_INFO, "reference track: ");
+ dump_reference_track(ctx, &sd);
+ break;
default:
av_log(ctx, AV_LOG_INFO,
"unknown side data type %d (%d bytes)", sd.type, sd.size);
diff --git a/libavformat/mov.c b/libavformat/mov.c
index ec57a05..922776e 100644
--- a/libavformat/mov.c
+++ b/libavformat/mov.c
@@ -6658,6 +6658,28 @@ static int mov_read_dops(MOVContext *c, AVIOContext *pb, MOVAtom atom)
return 0;
}
+static int mov_read_vdep(MOVContext *c, AVIOContext *pb, MOVAtom atom)
+{
+ uint32_t *track_id;
+ AVStream *st;
+ int ret;
+
+ track_id = av_mallocz(sizeof(uint32_t));
+ if (!track_id)
+ return AVERROR(ENOMEM);
+ *track_id = (uint32_t)avio_rb32(pb);
+
+ st = c->fc->streams[c->fc->nb_streams-1];
+ ret = av_stream_add_side_data(st, AV_PKT_DATA_REFERENCE_TRACK,
+ (uint8_t *)track_id, sizeof(uint32_t));
+ if (ret < 0) {
+ av_freep(&track_id);
+ return ret;
+ }
+
+ return 0;
+}
+
static const MOVParseTableEntry mov_default_parse_table[] = {
{ MKTAG('A','C','L','R'), mov_read_aclr },
{ MKTAG('A','P','R','G'), mov_read_avid },
@@ -6751,6 +6773,7 @@ static const MOVParseTableEntry mov_default_parse_table[] = {
{ MKTAG('v','p','c','C'), mov_read_vpcc },
{ MKTAG('m','d','c','v'), mov_read_mdcv },
{ MKTAG('c','l','l','i'), mov_read_clli },
+{ MKTAG('v','d','e','p'), mov_read_vdep },
{ 0, NULL }
};
--
2.7.4
_______________________________________________
ffmpeg-devel mailing list
ffmpeg-devel@ffmpeg.org
http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
