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media-converter: Fall back to OGV if no MKV is available

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CW-Bug-Id: #19516
This commit is contained in:
Andrew Eikum 2021-11-30 15:00:11 -06:00 committed by Arkadiusz Hiler
parent f1893068c3
commit f002efd808
1 changed files with 55 additions and 8 deletions
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63
media-converter/src/videoconv.rs
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@ -293,6 +293,8 @@ struct VideoConvState {
upstream_duration: Option<u64>,
our_duration: Option<u64>,
transcoded_tag: u32,
}
impl VideoConvState {
@ -314,6 +316,8 @@ impl VideoConvState {
upstream_duration: None,
our_duration: None,
transcoded_tag: VIDEOCONV_FOZ_TAG_MKVDATA,
})
}
@ -321,8 +325,17 @@ impl VideoConvState {
fn begin_transcode(&mut self, hash: u128) -> bool {
if let Some(read_fozdb) = &mut self.read_fozdb {
if let Ok(transcoded_size) = read_fozdb.entry_size(VIDEOCONV_FOZ_TAG_MKVDATA, hash) {
gst_log!(CAT, "Found an MKV video for hash {}", format_hash(hash));
self.transcode_hash = Some(hash);
self.our_duration = Some(transcoded_size as u64);
self.transcoded_tag = VIDEOCONV_FOZ_TAG_MKVDATA;
return true;
}
if let Ok(transcoded_size) = read_fozdb.entry_size(VIDEOCONV_FOZ_TAG_OGVDATA, hash) {
gst_log!(CAT, "Found an OGV video for hash {}", format_hash(hash));
self.transcode_hash = Some(hash);
self.our_duration = Some(transcoded_size as u64);
self.transcoded_tag = VIDEOCONV_FOZ_TAG_OGVDATA;
return true;
}
}
@ -339,7 +352,7 @@ impl VideoConvState {
match self.transcode_hash {
Some(hash) => {
let read_fozdb = self.read_fozdb.as_mut().unwrap();
read_fozdb.read_entry(VIDEOCONV_FOZ_TAG_MKVDATA, hash, offs as u64, out, fossilize::CRCCheck::WithoutCRC)
read_fozdb.read_entry(self.transcoded_tag, hash, offs as u64, out, fossilize::CRCCheck::WithoutCRC)
.map_err(|e| gst_loggable_error!(CAT, "Error reading ogvdata: {:?}", e))
},
@ -435,7 +448,12 @@ impl ObjectSubclass for VideoConv {
&caps).unwrap();
klass.add_pad_template(sink_pad_template);
let caps = gst::Caps::builder("video/x-matroska").build();
let mut caps = gst::Caps::new_empty();
{
let caps = caps.get_mut().unwrap();
caps.append(gst::Caps::builder("video/x-matroska").build());
caps.append(gst::Caps::builder("application/ogg").build());
}
let src_pad_template = gst::PadTemplate::new(
"src",
gst::PadDirection::Src,
@ -598,7 +616,34 @@ impl VideoConv {
gst_log!(CAT, obj:pad, "Got an event {:?}", event);
match event.view() {
EventView::Caps(_) => {
let caps = gst::Caps::builder("video/x-matroska").build();
/* push_event, below, can also grab state and cause a deadlock, so make sure it's
* released before calling */
let caps = {
let mut state = self.state.lock().unwrap();
let mut state = match &mut *state {
Some(s) => s,
None => { gst_error!(CAT, "VideoConv not yet in READY state?"); return false; },
};
if !self.sinkpad.activate_mode(gst::PadMode::Pull, true).is_ok() {
gst_error!(CAT, "Failed to activate sinkpad in pull mode");
return false;
}
if !self.init_transcode(&mut state).is_ok() {
gst_error!(CAT, "Failed to init transcode");
return false;
}
match state.transcoded_tag {
VIDEOCONV_FOZ_TAG_MKVDATA => gst::Caps::builder("video/x-matroska").build(),
VIDEOCONV_FOZ_TAG_OGVDATA => gst::Caps::builder("application/ogg").build(),
_ => { return false; },
}
};
self.srcpad.push_event(gst::event::Caps::new(&caps))
}
_ => pad.event_default(Some(element), event)
@ -717,13 +762,15 @@ impl VideoConv {
state: &mut VideoConvState
) -> Result<(), gst::LoggableError> {
(*DUMP_FOZDB).lock().unwrap().discard_transcoded();
if state.transcode_hash.is_none() {
(*DUMP_FOZDB).lock().unwrap().discard_transcoded();
let hash = self.hash_upstream_data();
let hash = self.hash_upstream_data();
if let Ok(hash) = hash {
if !state.begin_transcode(hash) {
self.dump_upstream_data(hash).map_err(|_| gst_loggable_error!(CAT, "Dumping file to disk failed"))?;
if let Ok(hash) = hash {
if !state.begin_transcode(hash) {
self.dump_upstream_data(hash).map_err(|_| gst_loggable_error!(CAT, "Dumping file to disk failed"))?;
}
}
}