X-Git-Url: https://git.nihav.org/?a=blobdiff_plain;f=nihav-commonfmt%2Fsrc%2Fcodecs%2Fclearvideo.rs;h=4236ae0c83180400d2191ea6dfe97f15a32411e9;hb=4c6a05ff74cba9a3e84c8628f9f0189ce2ffae30;hp=9b5ee77635072a668338dec6295b040e99e4b60b;hpb=5b9e314dc124b8325325f940d7863d39c012dd2e;p=nihav.git

diff --git a/nihav-commonfmt/src/codecs/clearvideo.rs b/nihav-commonfmt/src/codecs/clearvideo.rs
index 9b5ee77..4236ae0 100644
--- a/nihav-commonfmt/src/codecs/clearvideo.rs
+++ b/nihav-commonfmt/src/codecs/clearvideo.rs
@@ -3,6 +3,7 @@ use nihav_core::io::bitreader::*;
 use nihav_core::io::codebook::*;
 use nihav_core::formats;
 use nihav_core::codecs::*;
+use nihav_codec_support::codecs::{HAMShuffler, MV, ZERO_MV, ZIGZAG};
 
 struct CLVDCCodeReader { }
 struct CLVACCodeReader { }
@@ -623,7 +624,6 @@ impl ClearVideoDecoder {
 
 impl NADecoder for ClearVideoDecoder {
     fn init(&mut self, _supp: &mut NADecoderSupport, info: NACodecInfoRef) -> DecoderResult<()> {
-        if info.get_extradata().is_none() { return Err(DecoderError::InvalidData); }
         if let NACodecTypeInfo::Video(vinfo) = info.get_properties() {
             let w = vinfo.get_width();
             let h = vinfo.get_height();
@@ -632,9 +632,11 @@ impl NADecoder for ClearVideoDecoder {
             let myinfo = NACodecTypeInfo::Video(NAVideoInfo::new(w, h, f, fmt));
             self.info = NACodecInfo::new_ref(info.get_name(), myinfo, info.get_extradata()).into_ref();
             self.frmmgr.clear();
-            let edata = info.get_extradata().unwrap();
+            let edata = info.get_extradata().unwrap_or(std::sync::Arc::new(vec![]));
 //todo detect simply by extradata contents?
-            if !self.is_rm {
+            if edata.len() == 0 || edata.len() < 0x60 { // no or short extradata probably comes from MOV
+                self.tsize = 4;
+            } else if !self.is_rm {
                 let mut mr = MemoryReader::new_read(edata.as_slice());
                 let mut br = ByteReader::new(&mut mr);
                 br.read_skip(0x5E).unwrap();
@@ -671,7 +673,7 @@ impl NADecoder for ClearVideoDecoder {
         }
 
         let is_intra = (src[off] & 2) == 2;
-        let mut br = BitReader::new(&src[(off + 1)..], src.len() - (off + 1), BitReaderMode::BE);
+        let mut br = BitReader::new(&src[(off + 1)..], BitReaderMode::BE);
 
         let vinfo = self.info.get_properties().get_video_info().unwrap();
         let bufinfo = alloc_video_buffer(vinfo, self.tsize)?;
@@ -717,9 +719,9 @@ pub fn get_decoder_rm() -> Box<dyn NADecoder + Send> {
 mod test {
     use nihav_core::codecs::RegisteredDecoders;
     use nihav_core::demuxers::RegisteredDemuxers;
-    use nihav_core::test::dec_video::*;
-    use crate::codecs::generic_register_all_codecs;
-    use crate::demuxers::generic_register_all_demuxers;
+    use nihav_codec_support::test::dec_video::*;
+    use crate::generic_register_all_codecs;
+    use crate::generic_register_all_demuxers;
     #[test]
     fn test_clv() {
         let mut dmx_reg = RegisteredDemuxers::new();