X-Git-Url: https://git.nihav.org/?a=blobdiff_plain;f=nihav-realmedia%2Fsrc%2Fcodecs%2Frv3040.rs;h=9e8c68a34792144a8dfd43210a1b941c1b2560b1;hb=b7c882c1ce6f86c07c2340751200e3a060942826;hp=c3526196356ca9da336dfd4f891b17c46affa7a1;hpb=16cbd8c0f1508886caf521710e0ab14e55c089a9;p=nihav.git diff --git a/nihav-realmedia/src/codecs/rv3040.rs b/nihav-realmedia/src/codecs/rv3040.rs index c352619..9e8c68a 100644 --- a/nihav-realmedia/src/codecs/rv3040.rs +++ b/nihav-realmedia/src/codecs/rv3040.rs @@ -532,10 +532,13 @@ fn parse_slice_offsets(src: &[u8], offsets: &mut Vec) -> DecoderResult<() Ok(()) } -fn decode_slice_header(br: &mut BitReader, bd: &mut RV34BitstreamDecoder, slice_no: usize, slice_offs: &[usize], old_width: usize, old_height: usize) -> DecoderResult { +fn decode_slice_header(br: &mut BitReader, bd: &mut dyn RV34BitstreamDecoder, slice_no: usize, slice_offs: &[usize], old_width: usize, old_height: usize) -> DecoderResult { validate!(slice_no < slice_offs.len()); br.seek((slice_offs[slice_no] * 8) as u32)?; let mut shdr = bd.decode_slice_header(br, old_width, old_height)?; + if ((shdr.width == 0) || (shdr.height == 0)) && (shdr.ftype != FrameType::I) { + return Err(DecoderError::MissingReference); + } if slice_no < slice_offs.len() - 1 { let cur_pos = br.tell() as u32; br.seek((slice_offs[slice_no + 1] * 8) as u32)?; @@ -566,6 +569,9 @@ const RV34_MB_MAX_SIZES: [usize; 6] = [ 0x2F, 0x62, 0x18B, 0x62F, 0x18BF, 0x23FF const RV34_SLICE_START_BITS: [u8; 6] = [ 6, 7, 9, 11, 13, 14 ]; pub fn get_slice_start_offset_bits(w: usize, h: usize) -> u8 { + if (w == 0) || (h == 0) { + return 0; + } let mb_size = ((w + 15) >> 4) * ((h + 15) >> 4) - 1; let mut idx: usize = 0; while (idx < 5) && (RV34_MB_MAX_SIZES[idx] < mb_size) { idx += 1; } @@ -693,13 +699,13 @@ fn decode_mv(br: &mut BitReader) -> DecoderResult { Ok(MV{ x, y }) } -fn do_mc_16x16(dsp: &Box, buf: &mut NAVideoBuffer, prevbuf: &NAVideoBuffer, mb_x: usize, mb_y: usize, mv: MV, avg: bool) { +fn do_mc_16x16(dsp: &mut dyn RV34DSP, buf: &mut NAVideoBuffer, prevbuf: &NAVideoBuffer, mb_x: usize, mb_y: usize, mv: MV, avg: bool) { dsp.do_luma_mc (buf, prevbuf, mb_x * 16, mb_y * 16, mv, true, avg); dsp.do_chroma_mc(buf, prevbuf, mb_x * 8, mb_y * 8, 1, mv, true, avg); dsp.do_chroma_mc(buf, prevbuf, mb_x * 8, mb_y * 8, 2, mv, true, avg); } -fn do_mc_8x8(dsp: &Box, buf: &mut NAVideoBuffer, prevbuf: &NAVideoBuffer, mb_x: usize, xoff: usize, mb_y: usize, yoff: usize, mv: MV, avg: bool) { +fn do_mc_8x8(dsp: &mut dyn RV34DSP, buf: &mut NAVideoBuffer, prevbuf: &NAVideoBuffer, mb_x: usize, xoff: usize, mb_y: usize, yoff: usize, mv: MV, avg: bool) { dsp.do_luma_mc (buf, prevbuf, mb_x * 16 + xoff * 8, mb_y * 16 + yoff * 8, mv, false, avg); dsp.do_chroma_mc(buf, prevbuf, mb_x * 8 + xoff * 4, mb_y * 8 + yoff * 4, 1, mv, false, avg); dsp.do_chroma_mc(buf, prevbuf, mb_x * 8 + xoff * 4, mb_y * 8 + yoff * 4, 2, mv, false, avg); @@ -771,7 +777,7 @@ impl RV34Decoder { base_ts: 0, } } - fn decode_mb_header_intra(&mut self, bd: &mut RV34BitstreamDecoder, br: &mut BitReader, is_i16: bool, im: &mut IntraModeState, q: u8, has_top: bool, has_dq: bool) -> DecoderResult { + fn decode_mb_header_intra(&mut self, bd: &mut dyn RV34BitstreamDecoder, br: &mut BitReader, is_i16: bool, im: &mut IntraModeState, q: u8, has_top: bool, has_dq: bool) -> DecoderResult { if is_i16 { let imode = br.read(2)? as i8; im.fill_block(imode); @@ -787,7 +793,7 @@ impl RV34Decoder { Ok(MBInfo { mbtype: MBType::MBIntra, skip_run: 0, dquant: dq }) } } - fn decode_mb_header_inter(&mut self, bd: &mut RV34BitstreamDecoder, br: &mut BitReader, ftype: FrameType, mbtype: MBType, im: &mut IntraModeState, q: u8, has_top: bool) -> DecoderResult { + fn decode_mb_header_inter(&mut self, bd: &mut dyn RV34BitstreamDecoder, br: &mut BitReader, ftype: FrameType, mbtype: MBType, im: &mut IntraModeState, q: u8, has_top: bool) -> DecoderResult { let hdr = bd.decode_inter_mb_hdr(br, ftype, mbtype)?; validate!(hdr.mbtype != MBType::Invalid); if hdr.dquant { @@ -918,19 +924,19 @@ impl RV34Decoder { MBType::MBP16x16 | MBType::MBP16x16Mix => { if let Some(ref prevbuf) = self.ipbs.get_lastref() { let mv = self.mvi.get_mv(mb_x, mb_y, 0, 0, true); - do_mc_16x16(&self.dsp, buf, prevbuf, mb_x, mb_y, mv, false); + do_mc_16x16(self.dsp.as_mut(), buf, prevbuf, mb_x, mb_y, mv, false); } }, MBType::MBForward => { if let Some(ref fwdbuf) = self.ipbs.get_b_fwdref() { let mv = self.mvi.get_mv(mb_x, mb_y, 0, 0, true); - do_mc_16x16(&self.dsp, buf, fwdbuf, mb_x, mb_y, mv, false); + do_mc_16x16(self.dsp.as_mut(), buf, fwdbuf, mb_x, mb_y, mv, false); } }, MBType::MBBackward => { if let Some(ref bwdbuf) = self.ipbs.get_b_bwdref() { let mv = self.mvi.get_mv(mb_x, mb_y, 0, 0, false); - do_mc_16x16(&self.dsp, buf, bwdbuf, mb_x, mb_y, mv, false); + do_mc_16x16(self.dsp.as_mut(), buf, bwdbuf, mb_x, mb_y, mv, false); } }, MBType::MBP8x8 | MBType::MBP8x16 | MBType::MBP16x8 => { @@ -938,14 +944,14 @@ impl RV34Decoder { for y in 0..2 { for x in 0..2 { let mv = self.mvi.get_mv(mb_x, mb_y, x, y, true); - do_mc_8x8(&self.dsp, buf, prevbuf, mb_x, x, mb_y, y, mv, false); + do_mc_8x8(self.dsp.as_mut(), buf, prevbuf, mb_x, x, mb_y, y, mv, false); } } } }, MBType::MBSkip if !self.is_b => { if let Some(ref prevbuf) = self.ipbs.get_lastref() { - do_mc_16x16(&self.dsp, buf, prevbuf, mb_x, mb_y, ZERO_MV, false); + do_mc_16x16(self.dsp.as_mut(), buf, prevbuf, mb_x, mb_y, ZERO_MV, false); } }, MBType::MBSkip | MBType::MBDirect => { @@ -953,8 +959,8 @@ impl RV34Decoder { for y in 0..2 { for x in 0..2 { let (mv_f, mv_b) = self.ref_mvi.get_mv(mb_x, mb_y, x, y, true).scale(sstate.trd, sstate.trb); - do_mc_8x8(&self.dsp, buf, fwdbuf, mb_x, x, mb_y, y, mv_f, false); - do_mc_8x8(&self.dsp, &mut self.avg_buf, bwdbuf, mb_x, x, mb_y, y, mv_b, true); + do_mc_8x8(self.dsp.as_mut(), buf, fwdbuf, mb_x, x, mb_y, y, mv_f, false); + do_mc_8x8(self.dsp.as_mut(), &mut self.avg_buf, bwdbuf, mb_x, x, mb_y, y, mv_b, true); do_avg(&self.cdsp, buf, &self.avg_buf, mb_x, x, mb_y, y, 8, self.ratio1, self.ratio2); } } @@ -964,8 +970,8 @@ impl RV34Decoder { if let (Some(ref fwdbuf), Some(ref bwdbuf)) = (self.ipbs.get_b_fwdref(), self.ipbs.get_b_bwdref()) { let mv_f = self.mvi.get_mv(mb_x, mb_y, 0, 0, true); let mv_b = self.mvi.get_mv(mb_x, mb_y, 0, 0, false); - do_mc_16x16(&self.dsp, buf, fwdbuf, mb_x, mb_y, mv_f, false); - do_mc_16x16(&self.dsp, &mut self.avg_buf, bwdbuf, mb_x, mb_y, mv_b, true); + do_mc_16x16(self.dsp.as_mut(), buf, fwdbuf, mb_x, mb_y, mv_f, false); + do_mc_16x16(self.dsp.as_mut(), &mut self.avg_buf, bwdbuf, mb_x, mb_y, mv_b, true); do_avg(&self.cdsp, buf, &self.avg_buf, mb_x, 0, mb_y, 0, 16, self.ratio1, self.ratio2); } }, @@ -1089,7 +1095,8 @@ impl RV34Decoder { } } - pub fn parse_frame(&mut self, supp: &mut NADecoderSupport, src: &[u8], bd: &mut RV34BitstreamDecoder) -> DecoderResult<(NABufferType, FrameType, u64)> { + #[allow(clippy::cognitive_complexity)] + pub fn parse_frame(&mut self, supp: &mut NADecoderSupport, src: &[u8], bd: &mut dyn RV34BitstreamDecoder) -> DecoderResult<(NABufferType, FrameType, u64)> { let mut slice_offs: Vec = Vec::new(); parse_slice_offsets(src, &mut slice_offs)?; let ini_off = slice_offs.len() * 8 + 1; @@ -1249,6 +1256,7 @@ impl RV34Decoder { sstate.q_dc = bd.quant_dc(true, q); self.decode_mb_intra(&sstate, &imode, &mut buf, &mut br, is_16)?; } else { + sstate.q_dc = bd.quant_dc(false, q); imode.fill_block(0); self.decode_mb_inter(&sstate, &mbh, &mut buf, &mut br, is_16)?; }