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ismindex: Verify that all bitrate variants match 

In Smooth Streaming, the fragments are addressed by time, and
the manifest only stores one list of time offests for all streams,
so all streams need to have identical fragment offsets. Warn if
this isn't the case, so that the user can fix the files instead of
getting failures at runtime when the fragments can't be found.

Signed-off-by: Martin Storsjö <martin@martin.st>
This commit is contained in:
Martin Storsjö 2012-07-03 14:58:52 +03:00
parent 1be8c90847
commit 30327865f3
1 changed files with 26 additions and 4 deletions
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30
tools/ismindex.c
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@ -426,6 +426,7 @@ static void output_client_manifest(struct VideoFiles *files,
"Duration=\"%"PRId64 "\">\n", files->duration * 10); "Duration=\"%"PRId64 "\">\n", files->duration * 10);
if (files->video_file >= 0) { if (files->video_file >= 0) {
struct VideoFile *vf = files->files[files->video_file]; struct VideoFile *vf = files->files[files->video_file];
struct VideoFile *first_vf = vf;
int index = 0; int index = 0;
fprintf(out, fprintf(out,
"\t<StreamIndex Type=\"video\" QualityLevels=\"%d\" " "\t<StreamIndex Type=\"video\" QualityLevels=\"%d\" "
@ -445,15 +446,26 @@ static void output_client_manifest(struct VideoFiles *files,
fprintf(out, "%02X", vf->codec_private[j]); fprintf(out, "%02X", vf->codec_private[j]);
fprintf(out, "\" />\n"); fprintf(out, "\" />\n");
index++; index++;
if (vf->chunks != first_vf->chunks)
fprintf(stderr, "Mismatched number of video chunks in %s and %s\n",
vf->name, first_vf->name);
} }
vf = files->files[files->video_file]; vf = first_vf;
for (i = 0; i < vf->chunks; i++) for (i = 0; i < vf->chunks; i++) {
for (j = files->video_file + 1; j < files->nb_files; j++) {
if (files->files[j]->is_video &&
vf->offsets[i].duration != files->files[j]->offsets[i].duration)
fprintf(stderr, "Mismatched duration of video chunk %d in %s and %s\n",
i, vf->name, files->files[j]->name);
}
fprintf(out, "\t\t<c n=\"%d\" d=\"%d\" />\n", i, fprintf(out, "\t\t<c n=\"%d\" d=\"%d\" />\n", i,
vf->offsets[i].duration); vf->offsets[i].duration);
}
fprintf(out, "\t</StreamIndex>\n"); fprintf(out, "\t</StreamIndex>\n");
} }
if (files->audio_file >= 0) { if (files->audio_file >= 0) {
struct VideoFile *vf = files->files[files->audio_file]; struct VideoFile *vf = files->files[files->audio_file];
struct VideoFile *first_vf = vf;
int index = 0; int index = 0;
fprintf(out, fprintf(out,
"\t<StreamIndex Type=\"audio\" QualityLevels=\"%d\" " "\t<StreamIndex Type=\"audio\" QualityLevels=\"%d\" "
@ -475,11 +487,21 @@ static void output_client_manifest(struct VideoFiles *files,
fprintf(out, "%02X", vf->codec_private[j]); fprintf(out, "%02X", vf->codec_private[j]);
fprintf(out, "\" />\n"); fprintf(out, "\" />\n");
index++; index++;
if (vf->chunks != first_vf->chunks)
fprintf(stderr, "Mismatched number of audio chunks in %s and %s\n",
vf->name, first_vf->name);
} }
vf = files->files[files->audio_file]; vf = first_vf;
for (i = 0; i < vf->chunks; i++) for (i = 0; i < vf->chunks; i++) {
for (j = files->audio_file + 1; j < files->nb_files; j++) {
if (files->files[j]->is_audio &&
vf->offsets[i].duration != files->files[j]->offsets[i].duration)
fprintf(stderr, "Mismatched duration of audio chunk %d in %s and %s\n",
i, vf->name, files->files[j]->name);
}
fprintf(out, "\t\t<c n=\"%d\" d=\"%d\" />\n", fprintf(out, "\t\t<c n=\"%d\" d=\"%d\" />\n",
i, vf->offsets[i].duration); i, vf->offsets[i].duration);
}
fprintf(out, "\t</StreamIndex>\n"); fprintf(out, "\t</StreamIndex>\n");
} }
fprintf(out, "</SmoothStreamingMedia>\n"); fprintf(out, "</SmoothStreamingMedia>\n");