[FFmpeg-cvslog] cbs_mpeg2: Correct error codes

[Andreas Rheinhardt]

ffmpeg | branch: master | Andreas Rheinhardt <andreas.rheinhardt at gmail.com> | Wed May 22 03:04:35 2019 +0200| [1759a9e5b52de524fa9f3f4d115087132744176b] | committer: Mark Thompson

cbs_mpeg2: Correct error codes

Up until now, things that are merely unsupported by cbs_mpeg2 have been
declared to be invalid input. This has been changed.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt at gmail.com>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=1759a9e5b52de524fa9f3f4d115087132744176b
---

 libavcodec/cbs_mpeg2.c                 | 4 +---
 libavcodec/cbs_mpeg2_syntax_template.c | 4 ++--
 2 files changed, 3 insertions(+), 5 deletions(-)

diff --git a/libavcodec/cbs_mpeg2.c b/libavcodec/cbs_mpeg2.c
index 1f1197fb30..ce22e32c15 100644
--- a/libavcodec/cbs_mpeg2.c
+++ b/libavcodec/cbs_mpeg2.c
@@ -251,9 +251,7 @@ static int cbs_mpeg2_read_unit(CodedBitstreamContext *ctx,
                   group_of_pictures_header, NULL);
 #undef START
         default:
-            av_log(ctx->log_ctx, AV_LOG_ERROR, "Unknown start code %02"PRIx32".\n",
-                   unit->type);
-            return AVERROR_INVALIDDATA;
+            return AVERROR(ENOSYS);
         }
     }
 
diff --git a/libavcodec/cbs_mpeg2_syntax_template.c b/libavcodec/cbs_mpeg2_syntax_template.c
index 09487fe56d..d753cdc901 100644
--- a/libavcodec/cbs_mpeg2_syntax_template.c
+++ b/libavcodec/cbs_mpeg2_syntax_template.c
@@ -335,9 +335,9 @@ static int FUNC(extension_data)(CodedBitstreamContext *ctx, RWContext *rw,
         return FUNC(picture_coding_extension)
             (ctx, rw, &current->data.picture_coding);
     default:
-        av_log(ctx->log_ctx, AV_LOG_ERROR, "Invalid extension ID %d.\n",
+        av_log(ctx->log_ctx, AV_LOG_ERROR, "Extension ID %d not supported.\n",
                current->extension_start_code_identifier);
-        return AVERROR_INVALIDDATA;
+        return AVERROR_PATCHWELCOME;
     }
 }