diff mbox series

[FFmpeg-devel,4/6] lavf/concatdec: support stream metadata.

Message ID 20210831122209.586348-4-george@nsup.org
State New
Headers show
Series [FFmpeg-devel,1/6] lavf/concat: refactor parsing | expand

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Commit Message

Nicolas George Aug. 31, 2021, 12:22 p.m. UTC 
Signed-off-by: Nicolas George <george@nsup.org>
---
 doc/demuxers.texi       |  4 ++++
 libavformat/concatdec.c | 14 ++++++++++++--
 2 files changed, 16 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/doc/demuxers.texi b/doc/demuxers.texi
index fd06be3195..87e4d0319a 100644
--- a/doc/demuxers.texi
+++ b/doc/demuxers.texi
@@ -177,6 +177,10 @@  subfiles will be used.
 This is especially useful for MPEG-PS (VOB) files, where the order of the
 streams is not reliable.
 
+@item @code{stream_meta @var{key} @var{value}}
+Metadata for the stream.
+Can be present multiple times.
+
 @end table
 
 @subsection Options
diff --git a/libavformat/concatdec.c b/libavformat/concatdec.c
index 2981c7c27f..5ebac49b97 100644
--- a/libavformat/concatdec.c
+++ b/libavformat/concatdec.c
@@ -430,6 +430,7 @@  typedef enum ParseDirective {
    DIR_OPTION,
    DIR_STREAM,
    DIR_EXSID,
+   DIR_STMETA,
 } ParseDirective;
 
 static const ParseSyntax syntax[] = {
@@ -443,6 +444,7 @@  static const ParseSyntax syntax[] = {
     [DIR_OPTION   ] = { "option",               "ks", NEEDS_FILE | NEEDS_UNSAFE },
     [DIR_STREAM   ] = { "stream",               "",   0 },
     [DIR_EXSID    ] = { "exact_stream_id",      "i",  NEEDS_STREAM },
+    [DIR_STMETA   ] = { "stream_meta",          "ks", NEEDS_STREAM },
 };
 
 static int concat_parse_script(AVFormatContext *avf)
@@ -452,6 +454,7 @@  static int concat_parse_script(AVFormatContext *avf)
     AVBPrint bp;
     uint8_t *cursor, *keyword;
     ConcatFile *file = NULL;
+    AVStream *stream = NULL;
     unsigned line = 0, arg;
     const ParseSyntax *dir;
     char *arg_kw[MAX_ARGS];
@@ -569,11 +572,18 @@  static int concat_parse_script(AVFormatContext *avf)
             arg_str[1] = NULL;
             break;
         case DIR_STREAM:
-            if (!avformat_new_stream(avf, NULL))
+            stream = avformat_new_stream(avf, NULL);
+            if (!stream)
                 FAIL(AVERROR(ENOMEM));
             break;
         case DIR_EXSID:
-            avf->streams[avf->nb_streams - 1]->id = arg_int[0];
+            stream->id = arg_int[0];
+            break;
+        case DIR_STMETA:
+            ret = av_dict_set(&stream->metadata, arg_kw[0], arg_str[1], AV_DICT_DONT_STRDUP_VAL);
+            if (ret < 0)
+                FAIL(ret);
+            arg_str[1] = NULL;
             break;
         default:
             FAIL(AVERROR_BUG);