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Code Issues Releases Activity

lavf/mpeg: vobsub add an option to specify the .sub's URI

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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Rodger Combs 2015-04-13 01:17:28 -05:00 committed by Michael Niedermayer
parent 30ce065ffe
commit c69ff12dc3
1 changed files with 37 additions and 15 deletions
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52
libavformat/mpeg.c
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@ -26,6 +26,7 @@
#if CONFIG_VOBSUB_DEMUXER
# include "subtitles.h"
# include "libavutil/bprint.h"
# include "libavutil/opt.h"
#endif
#include "libavutil/avassert.h"
@ -121,6 +122,7 @@ static int mpegps_probe(AVProbeData *p)
}
typedef struct MpegDemuxContext {
AVClass *class;
int32_t header_state;
unsigned char psm_es_type[256];
int sofdec;
@ -129,6 +131,7 @@ typedef struct MpegDemuxContext {
#if CONFIG_VOBSUB_DEMUXER
AVFormatContext *sub_ctx;
FFDemuxSubtitlesQueue q[32];
char *sub_name;
#endif
} MpegDemuxContext;
@ -684,9 +687,8 @@ static int vobsub_read_header(AVFormatContext *s)
{
int i, ret = 0, header_parsed = 0, langidx = 0;
MpegDemuxContext *vobsub = s->priv_data;
char *sub_name = NULL;
size_t fname_len;
char *ext, *header_str;
char *header_str;
AVBPrint header;
int64_t delay = 0;
AVStream *st = NULL;
@ -695,17 +697,25 @@ static int vobsub_read_header(AVFormatContext *s)
char alt[MAX_LINE_SIZE] = {0};
AVInputFormat *iformat;
sub_name = av_strdup(s->filename);
fname_len = strlen(sub_name);
ext = sub_name - 3 + fname_len;
if (fname_len < 4 || *(ext - 1) != '.') {
av_log(s, AV_LOG_ERROR, "The input index filename is too short "
"to guess the associated .SUB file\n");
ret = AVERROR_INVALIDDATA;
goto end;
if (!vobsub->sub_name) {
char *ext;
vobsub->sub_name = av_strdup(s->filename);
if (!vobsub->sub_name) {
ret = AVERROR(ENOMEM);
goto end;
}
fname_len = strlen(vobsub->sub_name);
ext = vobsub->sub_name - 3 + fname_len;
if (fname_len < 4 || *(ext - 1) != '.') {
av_log(s, AV_LOG_ERROR, "The input index filename is too short "
"to guess the associated .SUB file\n");
ret = AVERROR_INVALIDDATA;
goto end;
}
memcpy(ext, !strncmp(ext, "IDX", 3) ? "SUB" : "sub", 3);
av_log(s, AV_LOG_VERBOSE, "IDX/SUB: %s -> %s\n", s->filename, vobsub->sub_name);
}
memcpy(ext, !strncmp(ext, "IDX", 3) ? "SUB" : "sub", 3);
av_log(s, AV_LOG_VERBOSE, "IDX/SUB: %s -> %s\n", s->filename, sub_name);
if (!(iformat = av_find_input_format("mpeg"))) {
ret = AVERROR_DEMUXER_NOT_FOUND;
@ -721,9 +731,9 @@ static int vobsub_read_header(AVFormatContext *s)
if ((ret = ff_copy_whitelists(vobsub->sub_ctx, s)) < 0)
goto end;
ret = avformat_open_input(&vobsub->sub_ctx, sub_name, iformat, NULL);
ret = avformat_open_input(&vobsub->sub_ctx, vobsub->sub_name, iformat, NULL);
if (ret < 0) {
av_log(s, AV_LOG_ERROR, "Unable to open %s as MPEG subtitles\n", sub_name);
av_log(s, AV_LOG_ERROR, "Unable to open %s as MPEG subtitles\n", vobsub->sub_name);
goto end;
}
@ -860,7 +870,6 @@ static int vobsub_read_header(AVFormatContext *s)
av_free(header_str);
end:
av_free(sub_name);
return ret;
}
@ -996,6 +1005,18 @@ static int vobsub_read_close(AVFormatContext *s)
return 0;
}
static const AVOption options[] = {
{ "sub_name", "URI for .sub file", offsetof(MpegDemuxContext, sub_name), AV_OPT_TYPE_STRING, { .str = NULL }, 0, 0, AV_OPT_FLAG_DECODING_PARAM },
{ NULL }
};
static const AVClass vobsub_demuxer_class = {
.class_name = "vobsub",
.item_name = av_default_item_name,
.option = options,
.version = LIBAVUTIL_VERSION_INT,
};
AVInputFormat ff_vobsub_demuxer = {
.name = "vobsub",
.long_name = NULL_IF_CONFIG_SMALL("VobSub subtitle format"),
@ -1007,5 +1028,6 @@ AVInputFormat ff_vobsub_demuxer = {
.read_close = vobsub_read_close,
.flags = AVFMT_SHOW_IDS,
.extensions = "idx",
.priv_class = &vobsub_demuxer_class,
};
#endif