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avformat/flvdec: add support for OnCaption

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This commit is contained in:
Michael Niedermayer 2015-03-13 16:25:27 +01:00
parent 1df64d6c46
commit 3727cd5416
1 changed files with 14 additions and 3 deletions
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17
libavformat/flvdec.c
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@ -546,7 +546,8 @@ static int amf_parse_object(AVFormatContext *s, AVStream *astream,
}
#define TYPE_ONTEXTDATA 1
#define TYPE_UNKNOWN 2
#define TYPE_ONCAPTION 2
#define TYPE_UNKNOWN 9
static int flv_read_metabody(AVFormatContext *s, int64_t next_pos)
{
@ -573,6 +574,9 @@ static int flv_read_metabody(AVFormatContext *s, int64_t next_pos)
if (!strcmp(buffer, "onTextData"))
return TYPE_ONTEXTDATA;
if (!strcmp(buffer, "onCaption"))
return TYPE_ONCAPTION;
if (strcmp(buffer, "onMetaData") && strcmp(buffer, "onCuePoint"))
return TYPE_UNKNOWN;
@ -717,8 +721,11 @@ static int flv_data_packet(AVFormatContext *s, AVPacket *pkt,
char buf[20];
int ret = AVERROR_INVALIDDATA;
int i, length = -1;
int array = 0;
switch (avio_r8(pb)) {
case AMF_DATA_TYPE_ARRAY:
array = 1;
case AMF_DATA_TYPE_MIXEDARRAY:
avio_seek(pb, 4, SEEK_CUR);
case AMF_DATA_TYPE_OBJECT:
@ -727,9 +734,9 @@ static int flv_data_packet(AVFormatContext *s, AVPacket *pkt,
goto skip;
}
while ((ret = amf_get_string(pb, buf, sizeof(buf))) > 0) {
while (array || (ret = amf_get_string(pb, buf, sizeof(buf))) > 0) {
AMFDataType type = avio_r8(pb);
if (type == AMF_DATA_TYPE_STRING && !strcmp(buf, "text")) {
if (type == AMF_DATA_TYPE_STRING && (array || !strcmp(buf, "text"))) {
length = avio_rb16(pb);
ret = av_get_packet(pb, pkt, length);
if (ret < 0)
@ -839,6 +846,8 @@ static int flv_read_packet(AVFormatContext *s, AVPacket *pkt)
} else if (type == TYPE_ONTEXTDATA) {
avpriv_request_sample(s, "OnTextData packet");
return flv_data_packet(s, pkt, dts, next);
} else if (type == TYPE_ONCAPTION) {
return flv_data_packet(s, pkt, dts, next);
}
avio_seek(s->pb, meta_pos, SEEK_SET);
}
@ -955,6 +964,8 @@ retry_duration:
}
} else if (stream_type == FLV_STREAM_TYPE_VIDEO) {
size -= flv_set_video_codec(s, st, flags & FLV_VIDEO_CODECID_MASK, 1);
} else if (stream_type == FLV_STREAM_TYPE_DATA) {
st->codec->codec_id = AV_CODEC_ID_TEXT;
}
if (st->codec->codec_id == AV_CODEC_ID_AAC ||