[FFmpeg-devel] [PATCH 4/6] avformat/argo_asf: add version_major and version_minor options

[Zane van Iperen]

Signed-off-by: Zane van Iperen <zane at zanevaniperen.com>
---
 libavformat/argo_asf.c | 37 +++++++++++++++++++++++++++++++++++--
 1 file changed, 35 insertions(+), 2 deletions(-)

diff --git a/libavformat/argo_asf.c b/libavformat/argo_asf.c
index 1770192aad..9845cb955b 100644
--- a/libavformat/argo_asf.c
+++ b/libavformat/argo_asf.c
@@ -23,6 +23,7 @@
 #include "internal.h"
 #include "libavutil/intreadwrite.h"
 #include "libavutil/avassert.h"
+#include "libavutil/opt.h"
 
 #define ASF_TAG                 MKTAG('A', 'S', 'F', '\0')
 #define ASF_FILE_HEADER_SIZE    24
@@ -64,6 +65,7 @@ enum {
 };
 
 typedef struct ArgoASFContext {
+    const AVClass      *class;
     ArgoASFFileHeader   fhdr;
     ArgoASFChunkHeader  ckhdr;
     uint32_t            blocks_read;
@@ -296,8 +298,7 @@ static int argo_asf_write_header(AVFormatContext *s)
     ArgoASFContext          *ctx = s->priv_data;
 
     ctx->fhdr.magic              = ASF_TAG;
-    ctx->fhdr.version_major      = 2;
-    ctx->fhdr.version_minor      = 1;
+    /* version_{major,minor} set by options. */
     ctx->fhdr.num_chunks         = 1;
     ctx->fhdr.chunk_offset       = ASF_FILE_HEADER_SIZE;
     strncpy(ctx->fhdr.name, av_basename(s->url), FF_ARRAY_ELEMS(ctx->fhdr.name));
@@ -340,6 +341,37 @@ static int argo_asf_write_trailer(AVFormatContext *s)
     return 0;
 }
 
+static const AVOption argo_asf_options[] = {
+    {
+        .name        = "version_major",
+        .help        = "set file major version",
+        .offset      = offsetof(ArgoASFContext, fhdr.version_major),
+        .type        = AV_OPT_TYPE_INT,
+        .default_val = {.i64 = 2},
+        .min         = 0,
+        .max         = UINT16_MAX,
+        .flags       = AV_OPT_FLAG_ENCODING_PARAM
+    },
+    {
+        .name        = "version_minor",
+        .help        = "set file minor version",
+        .offset      = offsetof(ArgoASFContext, fhdr.version_minor),
+        .type        = AV_OPT_TYPE_INT,
+        .default_val = {.i64 = 1},
+        .min         = 0,
+        .max         = UINT16_MAX,
+        .flags       = AV_OPT_FLAG_ENCODING_PARAM
+    },
+    { NULL }
+};
+
+static const AVClass argo_asf_muxer_class = {
+    .class_name = "argo_asf_muxer",
+    .item_name  = av_default_item_name,
+    .option     = argo_asf_options,
+    .version    = LIBAVUTIL_VERSION_INT
+};
+
 AVOutputFormat ff_argo_asf_muxer = {
     .name           = "argo_asf",
     .long_name      = NULL_IF_CONFIG_SMALL("Argonaut Games ASF"),
@@ -353,6 +385,7 @@ AVOutputFormat ff_argo_asf_muxer = {
     .write_header   = argo_asf_write_header,
     .write_packet   = argo_asf_write_packet,
     .write_trailer  = argo_asf_write_trailer,
+    .priv_class     = &argo_asf_muxer_class,
     .priv_data_size = sizeof(ArgoASFContext)
 };
 #endif
-- 
2.25.1