ensure sf_seek is called on the out file in copyBytes
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parent
8c2bbee372
commit
d12268f028
1 changed files with 24 additions and 11 deletions
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@ -54,6 +54,21 @@ fn swrite(file: *c.SNDFILE, buf: [*]f32, frames: i64) !void {
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}
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}
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fn sseek(file: *c.SNDFILE, offset: usize) !void {
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const frames = c.sf_seek(file, @intCast(i64, offset), c.SEEK_SET);
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if (frames != @intCast(i64, offset)) {
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std.debug.warn("failed to seek to {}\n", offset);
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return error.SeekFail;
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}
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}
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fn sf_tell(file: *c.SNDFILE) i64 {
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var frames = c.sf_seek(file, 0, c.SEEK_CUR);
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std.debug.warn("\t\t{} frames\n", frames);
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return -frames;
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}
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fn temporaryName(allocator: *std.mem.Allocator) ![]u8 {
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const template_start = "/temp/temp_";
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const template = "/tmp/temp_XXXXXXXX";
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@ -168,12 +183,12 @@ pub const Image = struct {
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var buf = try self.allocator.alloc(f32, BufferSize);
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defer self.allocator.free(buf);
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const total_bytes = end - start;
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var i: usize = start;
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// we do sf_seek() calls to make sure we are actually on the start
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// and actually end at the end position for the file.
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_ = c.sf_seek(self.sndfile, @intCast(i64, start), c.SEEK_SET);
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try sseek(self.sndfile, start);
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try sseek(out_file, start);
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while (i <= end) : (i += buf.len) {
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std.debug.warn("i={}, buf.len={}, end={}\n", i, buf.len, end);
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@ -197,7 +212,8 @@ pub const Image = struct {
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try swrite(out_file, view.ptr, @intCast(i64, view.len));
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}
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_ = c.sf_seek(self.sndfile, @intCast(i64, end), c.SEEK_SET);
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try sseek(self.sndfile, end);
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try sseek(out_file, end);
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}
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fn getSeekPos(self: *Image, position: plugins.Position) plugins.SeekPos {
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@ -275,9 +291,6 @@ pub const Image = struct {
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const seek_pos = self.getSeekPos(position);
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// make sure we start from 0
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_ = c.sf_seek(self.sndfile, 0, c.SEEK_SET);
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// there are four main stages:
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// - the bmp header copy
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// - pre-plugin
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@ -291,7 +304,7 @@ pub const Image = struct {
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seek_pos.start,
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);
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_ = c.sf_seek(self.sndfile, @intCast(i64, seek_pos.start), c.SEEK_SET);
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try sseek(self.sndfile, seek_pos.start);
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var i: usize = seek_pos.start;
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std.debug.warn("\tseek pos start: {} end: {}\n", seek_pos.start, seek_pos.end);
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@ -310,7 +323,7 @@ pub const Image = struct {
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try swrite(out_file, outbuf.ptr, 1);
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}
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_ = c.sf_seek(self.sndfile, @intCast(i64, seek_pos.end), c.SEEK_SET);
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try sseek(self.sndfile, seek_pos.end);
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// post-plugin copy
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try self.copyBytes(
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@ -355,7 +368,7 @@ pub const Image = struct {
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const seek_pos = self.getSeekPos(position);
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// make sure we start from 0
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_ = c.sf_seek(self.sndfile, 0, c.SEEK_SET);
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try sseek(self.sndfile, 0);
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// there are four main stages:
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// - the bmp header copy
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@ -370,7 +383,7 @@ pub const Image = struct {
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seek_pos.start,
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);
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_ = c.sf_seek(self.sndfile, @intCast(i64, seek_pos.start), c.SEEK_SET);
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try sseek(self.sndfile, seek_pos.start);
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var i: usize = seek_pos.start;
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std.debug.warn("\tseek pos start: {} end: {}\n", seek_pos.start, seek_pos.end);
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@ -389,7 +402,7 @@ pub const Image = struct {
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try swrite(out_file, bufs.out.ptr, 1);
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}
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_ = c.sf_seek(self.sndfile, @intCast(i64, seek_pos.end), c.SEEK_SET);
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try sseek(self.sndfile, seek_pos.end);
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// post-plugin copy
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try self.copyBytes(
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