[FFmpeg-devel] [PATCHv2 3/4] avcodec/svq1enc: output ident string in extradata field

[Peter Ross <pross@xvid.org>]

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This will enable the acurate identification of FFmpeg produced
SVQ1 streams, should there be new bugs found in the encoder.
---
 libavcodec/svq1enc.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/libavcodec/svq1enc.c b/libavcodec/svq1enc.c
index 9bd5a04368..6aacaef88d 100644
--- a/libavcodec/svq1enc.c
+++ b/libavcodec/svq1enc.c
@@ -41,6 +41,7 @@
 #include "svq1.h"
 #include "svq1encdsp.h"
 #include "svq1enc_cb.h"
+#include "version.h"
 
 #include "libavutil/avassert.h"
 #include "libavutil/frame.h"
@@ -628,6 +629,14 @@ static av_cold int svq1_encode_init(AVCodecContext *avctx)
 
     ff_h263_encode_init(&s->m); // mv_penalty
 
+    if (!(s->avctx->flags & AV_CODEC_FLAG_BITEXACT)) {
+        avctx->extradata = av_malloc(sizeof(LIBAVCODEC_IDENT));
+        if (!avctx->extradata)
+            return AVERROR(ENOMEM);
+        memcpy(avctx->extradata, LIBAVCODEC_IDENT, sizeof(LIBAVCODEC_IDENT));
+        avctx->extradata_size = sizeof(LIBAVCODEC_IDENT);
+    }
+
     return 0;
 }
 
-- 
2.35.1

-- Peter
(A907 E02F A6E5 0CD2 34CD 20D2 6760 79C5 AC40 DD6B)

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