-//! Simple PNM image writers for RGB and YUV images.
-use std::io::prelude::*;
-use std::fs::File;
-use nihav_core::frame::{NABufferType, NAFrameRef, NAFrame, alloc_video_buffer};
-use nihav_core::scale::*;
-use nihav_core::formats::YUV420_FORMAT;
-
-/// Writes PGMYUV for input frame.
-pub fn write_pgmyuv(name: &str, frm: NAFrameRef) -> std::io::Result<()> {
- if let NABufferType::None = frm.get_buffer() { return Ok(()); }
- let mut ofile = File::create(name)?;
- let buf = frm.get_buffer().get_vbuf().unwrap();
- let is_flipped = buf.get_info().is_flipped();
- let (w, h) = buf.get_dimensions(0);
- let (w2, h2) = buf.get_dimensions(1);
- let full_w = w2 * 2 > w;
- let has_alpha = buf.get_info().get_format().has_alpha();
- let mut tot_h = h + h2;
- if has_alpha {
- tot_h += h;
- }
- if full_w {
- tot_h += h2;
- }
- let hdr = format!("P5\n{} {}\n255\n", w, tot_h);
- ofile.write_all(hdr.as_bytes())?;
- let dta = buf.get_data();
- let ls = buf.get_stride(0);
- let pad: Vec<u8> = vec![0xFF; if !full_w { (w - w2 * 2) / 2 } else { w - w2 } ];
- if !is_flipped {
- let ylines = dta.chunks(ls).take(h);
- for line in ylines {
- ofile.write_all(&line[..w])?;
- }
- } else {
- let ylines = dta[..h * ls].chunks(ls).rev();
- for line in ylines {
- ofile.write_all(&line[..w])?;
- }
- }
- let base1 = buf.get_offset(1);
- let stride1 = buf.get_stride(1);
- let base2 = buf.get_offset(2);
- let stride2 = buf.get_stride(2);
- let u = &dta[base1..][..h2*stride1];
- let v = &dta[base2..][..h2*stride2];
- let has_chroma = stride1 > 0 && stride2 > 0;
- if !full_w && has_chroma {
- if !is_flipped {
- for (uline, vline) in u.chunks(stride1).zip(v.chunks(stride2)) {
- ofile.write_all(&uline[..w2])?;
- ofile.write_all(pad.as_slice())?;
-
- ofile.write_all(&vline[..w2])?;
- ofile.write_all(pad.as_slice())?;
- }
- } else {
- for (uline, vline) in u.chunks(stride1).rev().zip(v.chunks(stride2).rev()) {
- ofile.write_all(&uline[..w2])?;
- ofile.write_all(pad.as_slice())?;
-
- ofile.write_all(&vline[..w2])?;
- ofile.write_all(pad.as_slice())?;
- }
- }
- } else if has_chroma {
- if !is_flipped {
- for uline in u.chunks(stride1) {
- ofile.write_all(&uline[..w2])?;
- ofile.write_all(pad.as_slice())?;
- }
- for vline in v.chunks(stride2) {
- ofile.write_all(&vline[..w2])?;
- ofile.write_all(pad.as_slice())?;
- }
- } else {
- for uline in u.chunks(stride1).rev() {
- ofile.write_all(&uline[..w2])?;
- ofile.write_all(pad.as_slice())?;
- }
- for vline in v.chunks(stride2).rev() {
- ofile.write_all(&vline[..w2])?;
- ofile.write_all(pad.as_slice())?;
- }
- }
- }
- if has_alpha {
- let ls = buf.get_stride(3);
- if !is_flipped {
- let alines = dta[buf.get_offset(3)..].chunks(ls).take(h);
- for line in alines {
- ofile.write_all(&line[..w])?;
- }
- } else {
- let alines = dta[buf.get_offset(3)..].chunks(ls).take(h).rev();
- for line in alines {
- ofile.write_all(&line[..w])?;
- }
- }
- }
- Ok(())
-}
-
-/// Writes output PPM for input paletted input frame.
-pub fn write_palppm(name: &str, frm: NAFrameRef) -> std::io::Result<()> {
- if let NABufferType::None = frm.get_buffer() { return Ok(()); }
- let mut ofile = File::create(name)?;
- let buf = frm.get_buffer().get_vbuf().unwrap();
- let (w, h) = buf.get_dimensions(0);
- let paloff = buf.get_offset(1);
- let hdr = format!("P6\n{} {}\n255\n", w, h);
- ofile.write_all(hdr.as_bytes())?;
- let dta = buf.get_data();
- let ls = buf.get_stride(0);
- let offs: [usize; 3] = [
- buf.get_info().get_format().get_chromaton(0).unwrap().get_offset() as usize,
- buf.get_info().get_format().get_chromaton(1).unwrap().get_offset() as usize,
- buf.get_info().get_format().get_chromaton(2).unwrap().get_offset() as usize
- ];
- let flipped = buf.get_info().is_flipped();
- let mut idx = if !flipped { 0 } else { ls * h };
- let mut line: Vec<u8> = vec![0; w * 3];
- for _ in 0..h {
- if flipped {
- idx -= ls;
- }
- let src = &dta[idx..(idx+w)];
- for x in 0..w {
- let pix = src[x] as usize;
- line[x * 3 + 0] = dta[paloff + pix * 3 + offs[0]];
- line[x * 3 + 1] = dta[paloff + pix * 3 + offs[1]];
- line[x * 3 + 2] = dta[paloff + pix * 3 + offs[2]];
- }
- ofile.write_all(line.as_slice())?;
- if !flipped {
- idx += ls;
- }
- }
- Ok(())
-}
-
-/// Writes PPM file for RGB input.
-pub fn write_rgbppm(name: &str, frm: NAFrameRef) -> std::io::Result<()> {
- if let NABufferType::None = frm.get_buffer() { return Ok(()); }
- let mut ofile = File::create(name)?;
- let info = frm.get_buffer().get_video_info().unwrap();
- let flipped = info.is_flipped();
- let buffer = frm.get_buffer();
- if let Some(ref buf) = buffer.get_vbuf() {
- let (w, h) = buf.get_dimensions(0);
- let hdr = format!("P6\n{} {}\n255\n", w, h);
- ofile.write_all(hdr.as_bytes())?;
- let dta = buf.get_data();
- let stride = buf.get_stride(0);
- let offs: [usize; 3] = [
- info.get_format().get_chromaton(0).unwrap().get_offset() as usize,
- info.get_format().get_chromaton(1).unwrap().get_offset() as usize,
- info.get_format().get_chromaton(2).unwrap().get_offset() as usize
- ];
- let step = info.get_format().get_elem_size() as usize;
- let mut line: Vec<u8> = vec![0; w * 3];
- if !flipped {
- for src in dta.chunks(stride) {
- for x in 0..w {
- line[x * 3 + 0] = src[x * step + offs[0]];
- line[x * 3 + 1] = src[x * step + offs[1]];
- line[x * 3 + 2] = src[x * step + offs[2]];
- }
- ofile.write_all(line.as_slice())?;
- }
- } else {
- for src in dta[..stride * h].chunks(stride).rev() {
- for x in 0..w {
- line[x * 3 + 0] = src[x * step + offs[0]];
- line[x * 3 + 1] = src[x * step + offs[1]];
- line[x * 3 + 2] = src[x * step + offs[2]];
- }
- ofile.write_all(line.as_slice())?;
- }
- }
- } else if let NABufferType::Video16(ref buf) = buffer {
- let (w, h) = buf.get_dimensions(0);
- let hdr = format!("P6\n{} {}\n255\n", w, h);
- ofile.write_all(hdr.as_bytes())?;
- let dta = buf.get_data();
- let stride = buf.get_stride(0);
- let depths: [u8; 3] = [
- info.get_format().get_chromaton(0).unwrap().get_depth(),
- info.get_format().get_chromaton(1).unwrap().get_depth(),
- info.get_format().get_chromaton(2).unwrap().get_depth()
- ];
- let masks: [u16; 3] = [
- (1 << depths[0]) - 1,
- (1 << depths[1]) - 1,
- (1 << depths[2]) - 1
- ];
- let shifts: [u8; 3] = [
- info.get_format().get_chromaton(0).unwrap().get_shift(),
- info.get_format().get_chromaton(1).unwrap().get_shift(),
- info.get_format().get_chromaton(2).unwrap().get_shift()
- ];
- let mut line: Vec<u8> = vec![0; w * 3];
- if !flipped {
- for src in dta.chunks(stride) {
- for x in 0..w {
- let elem = src[x];
- let r = ((elem >> shifts[0]) & masks[0]) << (8 - depths[0]);
- let g = ((elem >> shifts[1]) & masks[1]) << (8 - depths[1]);
- let b = ((elem >> shifts[2]) & masks[2]) << (8 - depths[2]);
- line[x * 3 + 0] = r as u8;
- line[x * 3 + 1] = g as u8;
- line[x * 3 + 2] = b as u8;
- }
- ofile.write_all(line.as_slice())?;
- }
- } else {
- for src in dta[..h * stride].chunks(stride).rev() {
- for x in 0..w {
- let elem = src[x];
- let r = ((elem >> shifts[0]) & masks[0]) << (8 - depths[0]);
- let g = ((elem >> shifts[1]) & masks[1]) << (8 - depths[1]);
- let b = ((elem >> shifts[2]) & masks[2]) << (8 - depths[2]);
- line[x * 3 + 0] = r as u8;
- line[x * 3 + 1] = g as u8;
- line[x * 3 + 2] = b as u8;
- }
- ofile.write_all(line.as_slice())?;
- }
- }
- } else {
-panic!(" unhandled buf format");
- }
- Ok(())
-}
-
-/// Writes PNM file with a format depending on input format.
-pub fn write_pnm(pfx: &str, strno: usize, num: u64, frm: NAFrameRef) -> std::io::Result<()> {
- if let NABufferType::None = frm.get_buffer() { return Ok(()); }
-
- let vinfo = frm.get_buffer().get_video_info().unwrap();
- if vinfo.get_format().is_paletted() {
- let name = format!("{}{:02}_{:06}.ppm", pfx, strno, num);
- write_palppm(name.as_str(), frm)
- } else if vinfo.get_format().get_model().is_yuv() {
- let name = format!("{}{:02}_{:06}.pgm", pfx, strno, num);
- if vinfo.get_format().is_unpacked() {
- write_pgmyuv(name.as_str(), frm)
- } else {
- let mut dst_vinfo = vinfo;
- dst_vinfo.format = YUV420_FORMAT;
- let mut cvt_buf = alloc_video_buffer(dst_vinfo, 2).unwrap();
- let buf = frm.get_buffer();
-
- let ifmt = get_scale_fmt_from_pic(&buf);
- let ofmt = get_scale_fmt_from_pic(&cvt_buf);
- let mut scaler = NAScale::new(ifmt, ofmt).unwrap();
- scaler.convert(&buf, &mut cvt_buf).unwrap();
- let frm = NAFrame::new(frm.get_time_information(), frm.frame_type, frm.key, frm.get_info(), cvt_buf);
- write_pgmyuv(name.as_str(), frm.into_ref())
- }
- } else if vinfo.get_format().get_model().is_rgb() {
- let name = format!("{}{:02}_{:06}.ppm", pfx, strno, num);
- write_rgbppm(name.as_str(), frm)
- } else {
-panic!(" unknown format");
- }
-}
-
+//! Simple PNM image writers for RGB and YUV images.
+use std::fs::File;
+use nihav_core::frame::{NABufferType, NAFrameRef, NAFrame, alloc_video_buffer};
+use nihav_core::io::byteio::*;
+use nihav_core::scale::*;
+use nihav_core::formats::YUV420_FORMAT;
+
+/// The error type for image writing operations.
+#[derive(Clone,Copy,Debug,PartialEq)]
+pub enum ImgWriteError {
+ /// File open error.
+ OpenError,
+ /// Invalid input format (e.g. audio).
+ InvalidInput,
+ /// Unsupported input format.
+ NotImplemented,
+ /// Write error.
+ WriteError,
+}
+
+/// A specialised `Return` type for image writing operations.
+pub type ImgWriteResult<T> = Result<T, ImgWriteError>;
+
+impl From<ByteIOError> for ImgWriteError {
+ fn from(_: ByteIOError) -> ImgWriteError { ImgWriteError::WriteError }
+}
+
+/// Writes PGMYUV for input frame.
+pub fn write_pgmyuv(name: &str, frm: NAFrameRef) -> ImgWriteResult<()> {
+ if let NABufferType::None = frm.get_buffer() { return Ok(()); }
+ let ofile = File::create(name).map_err(|_| ImgWriteError::OpenError)?;
+ let mut fw = FileWriter::new_write(ofile);
+ match frm.get_buffer() {
+ NABufferType::Video(ref buf) | NABufferType::VideoPacked(ref buf) => {
+ let is_flipped = buf.get_info().is_flipped();
+ let (w, h) = buf.get_dimensions(0);
+ let (w2, h2) = buf.get_dimensions(1);
+ let full_w = w2 * 2 > w;
+ let has_alpha = buf.get_info().get_format().has_alpha();
+ let mut tot_h = h + h2;
+ if has_alpha {
+ tot_h += h;
+ }
+ if full_w {
+ tot_h += h2;
+ }
+ let hdr = format!("P5\n{} {}\n255\n", w, tot_h);
+ fw.write_buf(hdr.as_bytes())?;
+ let dta = buf.get_data();
+ let ls = buf.get_stride(0);
+ let pad: Vec<u8> = vec![0xFF; if !full_w { (w - w2 * 2) / 2 } else { w - w2 } ];
+ if !is_flipped {
+ let ylines = dta.chunks(ls).take(h);
+ for line in ylines {
+ fw.write_buf(&line[..w])?;
+ }
+ } else {
+ let ylines = dta[..h * ls].chunks(ls).rev();
+ for line in ylines {
+ fw.write_buf(&line[..w])?;
+ }
+ }
+ let base1 = buf.get_offset(1);
+ let stride1 = buf.get_stride(1);
+ let base2 = buf.get_offset(2);
+ let stride2 = buf.get_stride(2);
+ let u = &dta[base1..][..h2*stride1];
+ let v = &dta[base2..][..h2*stride2];
+ let has_chroma = stride1 > 0 && stride2 > 0;
+ if !full_w && has_chroma {
+ if !is_flipped {
+ for (uline, vline) in u.chunks(stride1).zip(v.chunks(stride2)) {
+ fw.write_buf(&uline[..w2])?;
+ fw.write_buf(pad.as_slice())?;
+
+ fw.write_buf(&vline[..w2])?;
+ fw.write_buf(pad.as_slice())?;
+ }
+ } else {
+ for (uline, vline) in u.chunks(stride1).rev().zip(v.chunks(stride2).rev()) {
+ fw.write_buf(&uline[..w2])?;
+ fw.write_buf(pad.as_slice())?;
+
+ fw.write_buf(&vline[..w2])?;
+ fw.write_buf(pad.as_slice())?;
+ }
+ }
+ } else if has_chroma {
+ if !is_flipped {
+ for uline in u.chunks(stride1) {
+ fw.write_buf(&uline[..w2])?;
+ fw.write_buf(pad.as_slice())?;
+ }
+ for vline in v.chunks(stride2) {
+ fw.write_buf(&vline[..w2])?;
+ fw.write_buf(pad.as_slice())?;
+ }
+ } else {
+ for uline in u.chunks(stride1).rev() {
+ fw.write_buf(&uline[..w2])?;
+ fw.write_buf(pad.as_slice())?;
+ }
+ for vline in v.chunks(stride2).rev() {
+ fw.write_buf(&vline[..w2])?;
+ fw.write_buf(pad.as_slice())?;
+ }
+ }
+ }
+ if has_alpha {
+ let ls = buf.get_stride(3);
+ if !is_flipped {
+ let alines = dta[buf.get_offset(3)..].chunks(ls).take(h);
+ for line in alines {
+ fw.write_buf(&line[..w])?;
+ }
+ } else {
+ let alines = dta[buf.get_offset(3)..].chunks(ls).take(h).rev();
+ for line in alines {
+ fw.write_buf(&line[..w])?;
+ }
+ }
+ }
+ },
+ NABufferType::Video16(ref _buf) => {
+ return Err(ImgWriteError::NotImplemented);
+ },
+ NABufferType::Video32(ref _buf) => {
+ return Err(ImgWriteError::NotImplemented);
+ },
+ NABufferType::None => unreachable!(),
+ _ => return Err(ImgWriteError::InvalidInput),
+ }
+ fw.flush()?;
+ Ok(())
+}
+
+/// Writes output PPM for input paletted input frame.
+pub fn write_palppm(name: &str, frm: NAFrameRef) -> ImgWriteResult<()> {
+ if let NABufferType::None = frm.get_buffer() { return Ok(()); }
+ let ofile = File::create(name).map_err(|_| ImgWriteError::OpenError)?;
+ let mut fw = FileWriter::new_write(ofile);
+ let buf = frm.get_buffer().get_vbuf().unwrap();
+ let (w, h) = buf.get_dimensions(0);
+ let paloff = buf.get_offset(1);
+ let hdr = format!("P6\n{} {}\n255\n", w, h);
+ fw.write_buf(hdr.as_bytes())?;
+ let dta = buf.get_data();
+ let ls = buf.get_stride(0);
+ let offs: [usize; 3] = [
+ buf.get_info().get_format().get_chromaton(0).unwrap().get_offset() as usize,
+ buf.get_info().get_format().get_chromaton(1).unwrap().get_offset() as usize,
+ buf.get_info().get_format().get_chromaton(2).unwrap().get_offset() as usize
+ ];
+ let flipped = buf.get_info().is_flipped();
+ let mut idx = if !flipped { 0 } else { ls * h };
+ let mut line: Vec<u8> = vec![0; w * 3];
+ for _ in 0..h {
+ if flipped {
+ idx -= ls;
+ }
+ let src = &dta[idx..(idx+w)];
+ for x in 0..w {
+ let pix = src[x] as usize;
+ line[x * 3 + 0] = dta[paloff + pix * 3 + offs[0]];
+ line[x * 3 + 1] = dta[paloff + pix * 3 + offs[1]];
+ line[x * 3 + 2] = dta[paloff + pix * 3 + offs[2]];
+ }
+ fw.write_buf(line.as_slice())?;
+ if !flipped {
+ idx += ls;
+ }
+ }
+ fw.flush()?;
+ Ok(())
+}
+
+/// Writes PPM file for RGB input.
+pub fn write_rgbppm(name: &str, frm: NAFrameRef) -> ImgWriteResult<()> {
+ if let NABufferType::None = frm.get_buffer() { return Ok(()); }
+ let ofile = File::create(name).map_err(|_| ImgWriteError::OpenError)?;
+ let mut fw = FileWriter::new_write(ofile);
+ let info = frm.get_buffer().get_video_info().unwrap();
+ let flipped = info.is_flipped();
+ match frm.get_buffer() {
+ NABufferType::Video(ref buf) | NABufferType::VideoPacked(ref buf) => {
+ let (w, h) = buf.get_dimensions(0);
+ let hdr = format!("P6\n{} {}\n255\n", w, h);
+ fw.write_buf(hdr.as_bytes())?;
+ let dta = buf.get_data();
+ let stride = buf.get_stride(0);
+ let offs: [usize; 3] = [
+ info.get_format().get_chromaton(0).unwrap().get_offset() as usize,
+ info.get_format().get_chromaton(1).unwrap().get_offset() as usize,
+ info.get_format().get_chromaton(2).unwrap().get_offset() as usize
+ ];
+ let step = info.get_format().get_elem_size() as usize;
+ let mut line: Vec<u8> = vec![0; w * 3];
+ if !flipped {
+ for src in dta.chunks(stride) {
+ for x in 0..w {
+ line[x * 3 + 0] = src[x * step + offs[0]];
+ line[x * 3 + 1] = src[x * step + offs[1]];
+ line[x * 3 + 2] = src[x * step + offs[2]];
+ }
+ fw.write_buf(line.as_slice())?;
+ }
+ } else {
+ for src in dta[..stride * h].chunks(stride).rev() {
+ for x in 0..w {
+ line[x * 3 + 0] = src[x * step + offs[0]];
+ line[x * 3 + 1] = src[x * step + offs[1]];
+ line[x * 3 + 2] = src[x * step + offs[2]];
+ }
+ fw.write_buf(line.as_slice())?;
+ }
+ }
+ },
+ NABufferType::Video16(ref buf) => {
+ let (w, h) = buf.get_dimensions(0);
+ let hdr = format!("P6\n{} {}\n255\n", w, h);
+ fw.write_buf(hdr.as_bytes())?;
+ let dta = buf.get_data();
+ let stride = buf.get_stride(0);
+ let depths: [u8; 3] = [
+ info.get_format().get_chromaton(0).unwrap().get_depth(),
+ info.get_format().get_chromaton(1).unwrap().get_depth(),
+ info.get_format().get_chromaton(2).unwrap().get_depth()
+ ];
+ let masks: [u16; 3] = [
+ (1 << depths[0]) - 1,
+ (1 << depths[1]) - 1,
+ (1 << depths[2]) - 1
+ ];
+ let shifts: [u8; 3] = [
+ info.get_format().get_chromaton(0).unwrap().get_shift(),
+ info.get_format().get_chromaton(1).unwrap().get_shift(),
+ info.get_format().get_chromaton(2).unwrap().get_shift()
+ ];
+ let mut line: Vec<u8> = vec![0; w * 3];
+ if !flipped {
+ for src in dta.chunks(stride) {
+ for x in 0..w {
+ let elem = src[x];
+ let r = ((elem >> shifts[0]) & masks[0]) << (8 - depths[0]);
+ let g = ((elem >> shifts[1]) & masks[1]) << (8 - depths[1]);
+ let b = ((elem >> shifts[2]) & masks[2]) << (8 - depths[2]);
+ line[x * 3 + 0] = r as u8;
+ line[x * 3 + 1] = g as u8;
+ line[x * 3 + 2] = b as u8;
+ }
+ fw.write_buf(line.as_slice())?;
+ }
+ } else {
+ for src in dta[..h * stride].chunks(stride).rev() {
+ for x in 0..w {
+ let elem = src[x];
+ let r = ((elem >> shifts[0]) & masks[0]) << (8 - depths[0]);
+ let g = ((elem >> shifts[1]) & masks[1]) << (8 - depths[1]);
+ let b = ((elem >> shifts[2]) & masks[2]) << (8 - depths[2]);
+ line[x * 3 + 0] = r as u8;
+ line[x * 3 + 1] = g as u8;
+ line[x * 3 + 2] = b as u8;
+ }
+ fw.write_buf(line.as_slice())?;
+ }
+ }
+ },
+ NABufferType::Video32(ref _buf) => return Err(ImgWriteError::NotImplemented),
+ _ => return Err(ImgWriteError::InvalidInput),
+ }
+ fw.flush()?;
+ Ok(())
+}
+
+/// Writes PNM file with a format depending on input format.
+pub fn write_pnm(pfx: &str, strno: usize, num: u64, frm: NAFrameRef) -> ImgWriteResult<()> {
+ if let NABufferType::None = frm.get_buffer() { return Ok(()); }
+
+ let vinfo = frm.get_buffer().get_video_info().unwrap();
+ if vinfo.get_format().is_paletted() {
+ let name = format!("{}{:02}_{:06}.ppm", pfx, strno, num);
+ write_palppm(name.as_str(), frm)
+ } else if vinfo.get_format().get_model().is_yuv() {
+ let name = format!("{}{:02}_{:06}.pgm", pfx, strno, num);
+ if vinfo.get_format().is_unpacked() {
+ write_pgmyuv(name.as_str(), frm)
+ } else {
+ let mut dst_vinfo = vinfo;
+ dst_vinfo.format = YUV420_FORMAT;
+ let mut cvt_buf = alloc_video_buffer(dst_vinfo, 2).unwrap();
+ let buf = frm.get_buffer();
+
+ let ifmt = get_scale_fmt_from_pic(&buf);
+ let ofmt = get_scale_fmt_from_pic(&cvt_buf);
+ let mut scaler = NAScale::new(ifmt, ofmt).unwrap();
+ scaler.convert(&buf, &mut cvt_buf).unwrap();
+ let frm = NAFrame::new(frm.get_time_information(), frm.frame_type, frm.key, frm.get_info(), cvt_buf);
+ write_pgmyuv(name.as_str(), frm.into_ref())
+ }
+ } else if vinfo.get_format().get_model().is_rgb() {
+ let name = format!("{}{:02}_{:06}.ppm", pfx, strno, num);
+ write_rgbppm(name.as_str(), frm)
+ } else {
+ Err(ImgWriteError::NotImplemented)
+ }
+}
+
projects / nihav.git / commitdiff