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authorwm4 <wm4@nowhere>2016-09-03 17:05:11 +0200
committerwm4 <wm4@nowhere>2016-09-03 17:12:53 +0200
commit4f263dce34822a3f8356f88fa736353a20fd0c8c (patch)
treeb67ba23fa637129581d5f8b54fceaa5c1787d513 /sub
parent590caeb2bdeddd85aa86e4b08c05db058c538433 (diff)
downloadmpv-4f263dce34822a3f8356f88fa736353a20fd0c8c.tar.bz2
mpv-4f263dce34822a3f8356f88fa736353a20fd0c8c.tar.xz
sd_lavc: enable teletext
Whitelisting supported codecs is (probably) still better than just allowing everything, given the weird FFmpeg API. I'm also assuming Libav doesn't even have the codec ID, but I didn't check. Also add a --teletext-page option, since otherwise it decodes every teletext page and shows them in succession. And yes, we can't use av_opt_set_int() - instead we have to set it as string. Because FFmpeg's option system is terrible.
Diffstat (limited to 'sub')
-rw-r--r--sub/sd_lavc.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/sub/sd_lavc.c b/sub/sd_lavc.c
index f310367734..2c1b327b38 100644
--- a/sub/sd_lavc.c
+++ b/sub/sd_lavc.c
@@ -22,6 +22,7 @@
#include <libavcodec/avcodec.h>
#include <libavutil/common.h>
#include <libavutil/intreadwrite.h>
+#include <libavutil/opt.h>
#include "config.h"
@@ -106,6 +107,9 @@ static int init(struct sd *sd)
// Supported codecs must be known to decode to paletted bitmaps
switch (cid) {
case AV_CODEC_ID_DVB_SUBTITLE:
+#if LIBAVCODEC_VERSION_MICRO >= 100
+ case AV_CODEC_ID_DVB_TELETEXT:
+#endif
case AV_CODEC_ID_HDMV_PGS_SUBTITLE:
case AV_CODEC_ID_XSUB:
case AV_CODEC_ID_DVD_SUBTITLE:
@@ -339,6 +343,13 @@ static void decode(struct sd *sd, struct demux_packet *packet)
MP_WARN(sd, "Subtitle with unknown start time.\n");
mp_set_av_packet(&pkt, packet, &priv->pkt_timebase);
+
+ if (ctx->codec_id == AV_CODEC_ID_DVB_TELETEXT) {
+ char page[4];
+ snprintf(page, sizeof(page), "%d", opts->teletext_page);
+ av_opt_set(ctx, "txt_page", page, AV_OPT_SEARCH_CHILDREN);
+ }
+
int got_sub;
int res = avcodec_decode_subtitle2(ctx, &sub, &got_sub, &pkt);
if (res < 0 || !got_sub)