[FFmpeg-devel] [PATCH] split codec_id for ac-3 and e-ac-3

Ronald S. Bultje rsbultje
Mon Sep 1 04:32:53 CEST 2008

Hi Justin,

On Sun, Aug 31, 2008 at 10:24 PM, Justin Ruggles
<justin.ruggles at gmail.com> wrote:
> Here is a patch to make a separate CODEC_ID_EAC3.  It adds a separate
> demuxer, muxer, parser, and decoder for E-AC-3.
> After this is done, the various other muxers/demuxers can be modified to
> treat E-AC-3 differently if needed.

Index: libavcodec/ac3_parser.c
--- libavcodec/ac3_parser.c	(revision 15137)
+++ libavcodec/ac3_parser.c	(working copy)
@@ -194,3 +194,11 @@
+AVCodecParser eac3_parser = {
+    { CODEC_ID_EAC3 },
+    sizeof(AACAC3ParseContext),
+    ac3_parse_init,
+    ff_aac_ac3_parse,
+    ff_parse_close,

Can't you just add EAC3 in the array of ac3_parser? MP2/3 does that
too, I think. No need for the separate entry.

Same for demuxer / muxer, I think you can just share the same
ac3(de)muxer for both AC3 and EAC3 CodecIDs...


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