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qtdemux: attach cbcs crypt info at the right moment

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Before it was always added but that can cause issues when the stream begins
unencrypted.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/5085>
This commit is contained in:
Xabier Rodriguez Calvar 2023-07-21 12:48:08 +02:00 committed by GStreamer Marge Bot
parent dc494d9edb
commit 5114fb4170
1 changed files with 15 additions and 6 deletions
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11
subprojects/gst-plugins-good/gst/isomp4/qtdemux.c
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@ -6530,14 +6530,23 @@ gst_qtdemux_push_buffer (GstQTDemux * qtdemux, QtDemuxStream * stream,
if (info->crypto_info == NULL) {
if (stream->protection_scheme_type == FOURCC_cbcs) {
if (CUR_STREAM (stream)->fourcc == FOURCC_enca ||
CUR_STREAM (stream)->fourcc == FOURCC_encs ||
CUR_STREAM (stream)->fourcc == FOURCC_enct ||
CUR_STREAM (stream)->fourcc == FOURCC_encv) {
crypto_info = qtdemux_get_cenc_sample_properties (qtdemux, stream, 0);
if (!crypto_info || !gst_buffer_add_protection_meta (buf, crypto_info)) {
if (!crypto_info
|| !gst_buffer_add_protection_meta (buf, crypto_info)) {
GST_ERROR_OBJECT (qtdemux,
"failed to attach cbcs metadata to buffer");
qtdemux_gst_structure_free (crypto_info);
} else {
GST_TRACE_OBJECT (qtdemux, "added cbcs protection metadata");
}
} else {
GST_TRACE_OBJECT (qtdemux,
"cbcs stream is not encrypted yet, not adding protection metadata");
}
} else {
GST_DEBUG_OBJECT (qtdemux,
"cenc metadata hasn't been parsed yet, pushing buffer as if it wasn't encrypted");