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lavc_conv: pass real_time=1 option to ffmpeg for eia_608 decoder

This commit is contained in:
Aman Gupta 2016-01-18 12:13:42 -08:00
parent 1781bf26f1
commit ed3e5330ec
1 changed files with 7 additions and 1 deletions
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8
sub/lavc_conv.c
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@ -21,6 +21,7 @@
#include <libavcodec/avcodec.h>
#include <libavutil/intreadwrite.h>
#include <libavutil/common.h>
#include <libavutil/opt.h>
#include "config.h"
@ -70,6 +71,7 @@ struct lavc_conv *lavc_conv_create(struct mp_log *log, const char *codec_name,
priv->cur_list = talloc_array(priv, char*, 0);
priv->codec = talloc_strdup(priv, codec_name);
AVCodecContext *avctx = NULL;
AVDictionary *opts = NULL;
const char *fmt = get_lavc_format(priv->codec);
AVCodec *codec = avcodec_find_decoder(mp_codec_to_av_codec_id(fmt));
if (!codec)
@ -82,8 +84,11 @@ struct lavc_conv *lavc_conv_create(struct mp_log *log, const char *codec_name,
if (!avctx->extradata)
goto error;
memcpy(avctx->extradata, extradata, extradata_len);
if (avcodec_open2(avctx, codec, NULL) < 0)
if (strcmp(codec_name, "eia_608") == 0)
av_dict_set(&opts, "real_time", "1", 0);
if (avcodec_open2(avctx, codec, &opts) < 0)
goto error;
av_dict_free(&opts);
// Documented as "set by libavcodec", but there is no other way
avctx->time_base = (AVRational) {1, 1000};
priv->avctx = avctx;
@ -94,6 +99,7 @@ struct lavc_conv *lavc_conv_create(struct mp_log *log, const char *codec_name,
error:
MP_FATAL(priv, "Could not open libavcodec subtitle converter\n");
av_dict_free(&opts);
av_free(avctx);
talloc_free(priv);
return NULL;