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avformat/webmdashenc: Only check for existence of metadata if it is used 

Also return proper error codes when it is absent: AVERROR(EINVAL)
instead of AVERROR_INVALIDDATA.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
This commit is contained in:
Andreas Rheinhardt 2020-07-17 06:17:44 +02:00
parent f163b2eb27
commit e45365d15d
1 changed files with 12 additions and 10 deletions
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22
libavformat/webmdashenc.c
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@ -165,21 +165,16 @@ static int write_representation(AVFormatContext *s, AVStream *stream, char *id,
int output_width, int output_height,
int output_sample_rate) {
WebMDashMuxContext *w = s->priv_data;
AVDictionaryEntry *irange = av_dict_get(stream->metadata, INITIALIZATION_RANGE, NULL, 0);
AVDictionaryEntry *cues_start = av_dict_get(stream->metadata, CUES_START, NULL, 0);
AVDictionaryEntry *cues_end = av_dict_get(stream->metadata, CUES_END, NULL, 0);
AVDictionaryEntry *filename = av_dict_get(stream->metadata, FILENAME, NULL, 0);
AVDictionaryEntry *bandwidth = av_dict_get(stream->metadata, BANDWIDTH, NULL, 0);
const char *bandwidth_str;
if (!w->is_live && (!irange || !cues_start || !cues_end || !filename || !bandwidth)) {
return AVERROR_INVALIDDATA;
}
avio_printf(s->pb, "<Representation id=\"%s\"", id);
// if bandwidth for live was not provided, use a default
if (w->is_live && !bandwidth) {
if (bandwidth) {
bandwidth_str = bandwidth->value;
} else if (w->is_live) {
// if bandwidth for live was not provided, use a default
bandwidth_str = (stream->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) ? "128000" : "1000000";
} else {
bandwidth_str = bandwidth->value;
return AVERROR(EINVAL);
}
avio_printf(s->pb, " bandwidth=\"%s\"", bandwidth_str);
if (stream->codecpar->codec_type == AVMEDIA_TYPE_VIDEO && output_width)
@ -198,6 +193,13 @@ static int write_representation(AVFormatContext *s, AVStream *stream, char *id,
avio_printf(s->pb, " startsWithSAP=\"1\"");
avio_printf(s->pb, ">");
} else {
AVDictionaryEntry *irange = av_dict_get(stream->metadata, INITIALIZATION_RANGE, NULL, 0);
AVDictionaryEntry *cues_start = av_dict_get(stream->metadata, CUES_START, NULL, 0);
AVDictionaryEntry *cues_end = av_dict_get(stream->metadata, CUES_END, NULL, 0);
AVDictionaryEntry *filename = av_dict_get(stream->metadata, FILENAME, NULL, 0);
if (!irange || !cues_start || !cues_end || !filename)
return AVERROR(EINVAL);
avio_printf(s->pb, ">\n");
avio_printf(s->pb, "<BaseURL>%s</BaseURL>\n", filename->value);
avio_printf(s->pb, "<SegmentBase\n");