[FFmpeg-devel] [PATCH] avcodec/mpeg12enc: support mpeg2 encoder const level

[lance.lmwang at gmail.com]

From: Limin Wang <lance.lmwang at gmail.com>

Signed-off-by: Limin Wang <lance.lmwang at gmail.com>
---
 doc/encoders.texi      | 10 ++++++++++
 libavcodec/mpeg12enc.c |  6 ++++++
 2 files changed, 16 insertions(+)

diff --git a/doc/encoders.texi b/doc/encoders.texi
index de0472e..13aa5de 100644
--- a/doc/encoders.texi
+++ b/doc/encoders.texi
@@ -2902,6 +2902,16 @@ SNR Scalable
 @item simple
 @end table
 
+ at item level
+Select the mpeg2 level to encode:
+
+ at table @samp
+ at item high
+ at item high1440
+ at item main
+ at item low
+ at end table
+
 @item seq_disp_ext @var{integer}
 Specifies if the encoder should write a sequence_display_extension to the
 output.
diff --git a/libavcodec/mpeg12enc.c b/libavcodec/mpeg12enc.c
index 9fbbcef..f246427 100644
--- a/libavcodec/mpeg12enc.c
+++ b/libavcodec/mpeg12enc.c
@@ -1167,6 +1167,12 @@ static const AVOption mpeg2_options[] = {
     {     "secam",        NULL, 0, AV_OPT_TYPE_CONST,  {.i64 = VIDEO_FORMAT_SECAM      },  0, 0, VE, "video_format" },
     {     "mac",          NULL, 0, AV_OPT_TYPE_CONST,  {.i64 = VIDEO_FORMAT_MAC        },  0, 0, VE, "video_format" },
     {     "unspecified",  NULL, 0, AV_OPT_TYPE_CONST,  {.i64 = VIDEO_FORMAT_UNSPECIFIED},  0, 0, VE, "video_format" },
+#define LEVEL(name, value) name, NULL, 0, AV_OPT_TYPE_CONST, { .i64 = value }, 0, 0, VE, "avctx.level"
+    { LEVEL("high",     4) },
+    { LEVEL("high1440", 6) },
+    { LEVEL("main",     8) },
+    { LEVEL("low",     10) },
+#undef LEVEL
     FF_MPV_COMMON_OPTS
     FF_MPEG2_PROFILE_OPTS
     { NULL },
-- 
1.8.3.1