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FF-1361 - parsing video bits

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John Andrews
2024-02-22 14:47:22 +13:00
parent 65cb4ee398
commit bcf10d21e1
1 changed files with 15 additions and 31 deletions
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46
VideoNodes/VideoInfoHelper.cs
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@@ -257,6 +257,7 @@ public class VideoInfoHelper
vs.Codec = line.Substring(line.IndexOf("Video: ") + "Video: ".Length).Replace(",", "").Trim().Split(' ').First().ToLower();
vs.PixelFormat = GetDecoderPixelFormat(line);
vs.Bits = GetBitDepthFromStreamInfo(logger, info);
var dimensions = Regex.Match(line, @"([\d]{3,})x([\d]{3,})");
if (int.TryParse(dimensions.Groups[1].Value, out int width))
@@ -294,7 +295,6 @@ public class VideoInfoHelper
// "HDR is only the new transfer function" (PQ or HLG)
vs.HDR = info.Contains("arib-std-b67") || info.Contains("smpte2084");
vs.Bits = GetBitDepthFromStreamInfo(logger, info);
vs.DolbyVision = info.Contains("DOVI configuration record");
@@ -469,47 +469,31 @@ public class VideoInfoHelper
// return "yuv444p";
return string.Empty;
}
/// <summary>
/// Extracts the number of bits from the given video stream information.
/// </summary>
/// <param name="logger">the logger to use for logging</param>
/// <param name="streamInfo">The video stream information string.</param>
/// <param name="line">The video stream information string.</param>
/// <returns>The number of bits, or 0 if unknown.</returns>
static int GetBitDepthFromStreamInfo(ILogger logger, string streamInfo)
static int GetBitDepthFromStreamInfo(ILogger logger, string line)
{
Regex bitsRegex = new Regex(@"bits_per_raw_sample=(\d+)");
Regex pixFmtRegex = new Regex(@"pix_fmt=([^\s]+)");
Match bitsMatch = bitsRegex.Match(streamInfo);
if (bitsMatch.Success)
if (line.Contains("p10le") || line.Replace(" ", string.Empty).Contains("main10"))
{
logger?.ILog("Bit detected by bits_per_raw_sample: " + bitsMatch.Groups[1].Value);
int bits = int.Parse(bitsMatch.Groups[1].Value);
return bits;
logger?.ILog("10-Bit detected");
return 10;
}
Match pixFmtMatch = pixFmtRegex.Match(streamInfo);
if (pixFmtMatch.Success)
if (line.Contains("p12le"))
{
string pixFmt = pixFmtMatch.Groups[1].Value;
if (pixFmt.EndsWith("p10le"))
{
logger?.ILog("10-Bit detected pix_fmt: " + pixFmtMatch);
return 10;
}
logger?.ILog("12-Bit detected");
return 12;
}
if (pixFmt.EndsWith("p12le"))
{
logger?.ILog("12-Bit detected pix_fmt: " + pixFmtMatch);
return 12;
}
if (pixFmt.EndsWith("p"))
{
logger?.ILog("8-Bit detected pix_fmt: " + pixFmtMatch);
return 8;
}
if (line.Contains("yuv420p") || line.Contains("nv12"))
{
logger?.ILog("8-Bit detected");
return 8;
}
logger?.ILog("Bits not detected in video");