[libcamera-devel] [RFC PATCH 09/12] ipa: libipa: algorithm: process(): Pass frame number

Kieran Bingham kieran.bingham at ideasonboard.com
Tue Jul 26 20:50:11 CEST 2022


Quoting Jacopo Mondi (2022-07-25 16:48:42)
> Hi Kieran
> 
> On Thu, Jul 21, 2022 at 01:13:07PM +0100, Kieran Bingham via libcamera-devel wrote:
> > Pass the frame number of the current frame being processed.
> >
> > Signed-off-by: Kieran Bingham <kieran.bingham at ideasonboard.com>
> >
> >  - Use RKISP1FrameContext from the queue during IPARkISP1::processStatsBuffer
> >
> > Signed-off-by: Kieran Bingham <kieran.bingham at ideasonboard.com>
> 
> If I'm not mistaken this is not currently used.
> How do you think it will ? The algorithms receive the frameContext
> already, so they don't need the frame id to access it, right ?

For two reasons:
 - 1: Consistency of the other runtime calls 
      "Context, Frame, FrameContext, __VAR_ARGS__"

 - 2: To enable algorithms to be explicitly aware of the current frame
      'time' being worked on.
      While the current frame context is passed in, algorithms may
      choose to obtain a different one.
      For instance, the AGC may know that there is a 2 frame latency on
      manual controls taking effect, and may instead perform a
      FrameContext &peekAhead = fcq.get(frame + agcLatency_);


--
Kieran

> > ---
> >  src/ipa/ipu3/algorithms/af.cpp           | 2 ++
> >  src/ipa/ipu3/algorithms/af.h             | 4 +++-
> >  src/ipa/ipu3/algorithms/agc.cpp          | 2 ++
> >  src/ipa/ipu3/algorithms/agc.h            | 3 ++-
> >  src/ipa/ipu3/algorithms/awb.cpp          | 1 +
> >  src/ipa/ipu3/algorithms/awb.h            | 3 ++-
> >  src/ipa/ipu3/algorithms/tone_mapping.cpp | 2 ++
> >  src/ipa/ipu3/algorithms/tone_mapping.h   | 3 ++-
> >  src/ipa/ipu3/ipu3.cpp                    | 2 +-
> >  src/ipa/libipa/algorithm.cpp             | 1 +
> >  src/ipa/libipa/algorithm.h               | 1 +
> >  src/ipa/rkisp1/algorithms/agc.cpp        | 1 +
> >  src/ipa/rkisp1/algorithms/agc.h          | 3 ++-
> >  src/ipa/rkisp1/algorithms/awb.cpp        | 1 +
> >  src/ipa/rkisp1/algorithms/awb.h          | 3 ++-
> >  src/ipa/rkisp1/rkisp1.cpp                | 2 +-
> >  16 files changed, 26 insertions(+), 8 deletions(-)
> >
> > diff --git a/src/ipa/ipu3/algorithms/af.cpp b/src/ipa/ipu3/algorithms/af.cpp
> > index 1faf92969ee5..29a9f520d93c 100644
> > --- a/src/ipa/ipu3/algorithms/af.cpp
> > +++ b/src/ipa/ipu3/algorithms/af.cpp
> > @@ -409,6 +409,7 @@ bool Af::afIsOutOfFocus(IPAContext context)
> >  /**
> >   * \brief Determine the max contrast image and lens position.
> >   * \param[in] context The IPA context.
> > + * \param[in] frame The frame context sequence number
> >   * \param[in] frameContext The current frame context
> >   * \param[in] stats The statistics buffer of IPU3.
> >   *
> > @@ -424,6 +425,7 @@ bool Af::afIsOutOfFocus(IPAContext context)
> >   * [1] Hill Climbing Algorithm, https://en.wikipedia.org/wiki/Hill_climbing
> >   */
> >  void Af::process(IPAContext &context,
> > +              [[maybe_unused]] unsigned int frame,
> >                [[maybe_unused]] IPU3FrameContext &frameContext,
> >                const ipu3_uapi_stats_3a *stats)
> >  {
> > diff --git a/src/ipa/ipu3/algorithms/af.h b/src/ipa/ipu3/algorithms/af.h
> > index 4e2bbd08c3bf..977112506c98 100644
> > --- a/src/ipa/ipu3/algorithms/af.h
> > +++ b/src/ipa/ipu3/algorithms/af.h
> > @@ -31,10 +31,12 @@ public:
> >       ~Af() = default;
> >
> >       int configure(IPAContext &context, const IPAConfigInfo &configInfo) override;
> > +
> >       void prepare(IPAContext &context, unsigned int frame,
> >                    IPU3FrameContext &frameContext,
> >                    ipu3_uapi_params *params) override;
> > -     void process(IPAContext &context, IPU3FrameContext &frameContext,
> > +     void process(IPAContext &context, unsigned int frame,
> > +                  IPU3FrameContext &frameContext,
> >                    const ipu3_uapi_stats_3a *stats) override;
> >
> >  private:
> > diff --git a/src/ipa/ipu3/algorithms/agc.cpp b/src/ipa/ipu3/algorithms/agc.cpp
> > index 92ea6249798d..00ef54d45574 100644
> > --- a/src/ipa/ipu3/algorithms/agc.cpp
> > +++ b/src/ipa/ipu3/algorithms/agc.cpp
> > @@ -317,6 +317,7 @@ double Agc::estimateLuminance(IPAActiveState &activeState,
> >  /**
> >   * \brief Process IPU3 statistics, and run AGC operations
> >   * \param[in] context The shared IPA context
> > + * \param[in] frame The current frame sequence number
> >   * \param[in] frameContext The current frame context
> >   * \param[in] stats The IPU3 statistics and ISP results
> >   *
> > @@ -324,6 +325,7 @@ double Agc::estimateLuminance(IPAActiveState &activeState,
> >   * new exposure and gain for the scene.
> >   */
> >  void Agc::process(IPAContext &context,
> > +               [[maybe_unused]] unsigned int frame,
> >                 IPU3FrameContext &frameContext,
> >                 const ipu3_uapi_stats_3a *stats)
> >  {
> > diff --git a/src/ipa/ipu3/algorithms/agc.h b/src/ipa/ipu3/algorithms/agc.h
> > index 96585f48933f..5bb9dc8f610e 100644
> > --- a/src/ipa/ipu3/algorithms/agc.h
> > +++ b/src/ipa/ipu3/algorithms/agc.h
> > @@ -28,7 +28,8 @@ public:
> >       ~Agc() = default;
> >
> >       int configure(IPAContext &context, const IPAConfigInfo &configInfo) override;
> > -     void process(IPAContext &context, IPU3FrameContext &frameContext,
> > +     void process(IPAContext &context, unsigned int frame,
> > +                  IPU3FrameContext &frameContext,
> >                    const ipu3_uapi_stats_3a *stats) override;
> >
> >  private:
> > diff --git a/src/ipa/ipu3/algorithms/awb.cpp b/src/ipa/ipu3/algorithms/awb.cpp
> > index b110ad404fd1..8943ead6fc4c 100644
> > --- a/src/ipa/ipu3/algorithms/awb.cpp
> > +++ b/src/ipa/ipu3/algorithms/awb.cpp
> > @@ -388,6 +388,7 @@ void Awb::calculateWBGains(const ipu3_uapi_stats_3a *stats)
> >   * \copydoc libcamera::ipa::Algorithm::process
> >   */
> >  void Awb::process(IPAContext &context,
> > +               [[maybe_unused]] unsigned int frame,
> >                 [[maybe_unused]] IPU3FrameContext &frameContext,
> >                 const ipu3_uapi_stats_3a *stats)
> >  {
> > diff --git a/src/ipa/ipu3/algorithms/awb.h b/src/ipa/ipu3/algorithms/awb.h
> > index 731e5bae17de..094b177672ca 100644
> > --- a/src/ipa/ipu3/algorithms/awb.h
> > +++ b/src/ipa/ipu3/algorithms/awb.h
> > @@ -43,7 +43,8 @@ public:
> >       void prepare(IPAContext &context, unsigned int frame,
> >                    IPU3FrameContext &frameContext,
> >                    ipu3_uapi_params *params) override;
> > -     void process(IPAContext &context, IPU3FrameContext &frameContext,
> > +     void process(IPAContext &context, unsigned int frame,
> > +                  IPU3FrameContext &frameContext,
> >                    const ipu3_uapi_stats_3a *stats) override;
> >
> >  private:
> > diff --git a/src/ipa/ipu3/algorithms/tone_mapping.cpp b/src/ipa/ipu3/algorithms/tone_mapping.cpp
> > index 9ca3f471cbaf..e545011ce203 100644
> > --- a/src/ipa/ipu3/algorithms/tone_mapping.cpp
> > +++ b/src/ipa/ipu3/algorithms/tone_mapping.cpp
> > @@ -76,6 +76,7 @@ void ToneMapping::prepare([[maybe_unused]] IPAContext &context,
> >  /**
> >   * \brief Calculate the tone mapping look up table
> >   * \param context The shared IPA context
> > + * \param frame The current frame sequence number
> >   * \param frameContext The current frame context
> >   * \param stats The IPU3 statistics and ISP results
> >   *
> > @@ -83,6 +84,7 @@ void ToneMapping::prepare([[maybe_unused]] IPAContext &context,
> >   * our gamma setting.
> >   */
> >  void ToneMapping::process(IPAContext &context,
> > +                       [[maybe_unused]] unsigned int frame,
> >                         [[maybe_unused]] IPU3FrameContext &frameContext,
> >                         [[maybe_unused]] const ipu3_uapi_stats_3a *stats)
> >  {
> > diff --git a/src/ipa/ipu3/algorithms/tone_mapping.h b/src/ipa/ipu3/algorithms/tone_mapping.h
> > index cfb3de01b7f3..a3ab285c927f 100644
> > --- a/src/ipa/ipu3/algorithms/tone_mapping.h
> > +++ b/src/ipa/ipu3/algorithms/tone_mapping.h
> > @@ -21,7 +21,8 @@ public:
> >       int configure(IPAContext &context, const IPAConfigInfo &configInfo) override;
> >       void prepare(IPAContext &context, unsigned int frame,
> >                    IPU3FrameContext &frameContext, ipu3_uapi_params *params) override;
> > -     void process(IPAContext &context, IPU3FrameContext &frameContext,
> > +     void process(IPAContext &context, unsigned int frame,
> > +                  IPU3FrameContext &frameContext,
> >                    const ipu3_uapi_stats_3a *stats) override;
> >
> >  private:
> > diff --git a/src/ipa/ipu3/ipu3.cpp b/src/ipa/ipu3/ipu3.cpp
> > index 5663b1f4bb51..4d7a54f8d1a5 100644
> > --- a/src/ipa/ipu3/ipu3.cpp
> > +++ b/src/ipa/ipu3/ipu3.cpp
> > @@ -585,7 +585,7 @@ void IPAIPU3::processStatsBuffer(const uint32_t frame,
> >       ControlList ctrls(controls::controls);
> >
> >       for (auto const &algo : algorithms_)
> > -             algo->process(context_, frameContext, stats);
> > +             algo->process(context_, frame, frameContext, stats);
> >
> >       setControls(frame);
> >
> > diff --git a/src/ipa/libipa/algorithm.cpp b/src/ipa/libipa/algorithm.cpp
> > index bc7c130d3e09..65e9e8a56fc4 100644
> > --- a/src/ipa/libipa/algorithm.cpp
> > +++ b/src/ipa/libipa/algorithm.cpp
> > @@ -87,6 +87,7 @@ namespace ipa {
> >   * \fn Algorithm::process()
> >   * \brief Process ISP statistics, and run algorithm operations
> >   * \param[in] context The shared IPA context
> > + * \param[in] frame The frame context sequence number
> >   * \param[in] frameContext The current frame's context
> >   * \param[in] stats The IPA statistics and ISP results
> >   *
> > diff --git a/src/ipa/libipa/algorithm.h b/src/ipa/libipa/algorithm.h
> > index ce5c7cc491d8..1d2544a767eb 100644
> > --- a/src/ipa/libipa/algorithm.h
> > +++ b/src/ipa/libipa/algorithm.h
> > @@ -43,6 +43,7 @@ public:
> >       }
> >
> >       virtual void process([[maybe_unused]] typename Module::Context &context,
> > +                          [[maybe_unused]] unsigned int frame,
> >                            [[maybe_unused]] typename Module::FrameContext &frameContext,
> >                            [[maybe_unused]] const typename Module::Stats *stats)
> >       {
> > diff --git a/src/ipa/rkisp1/algorithms/agc.cpp b/src/ipa/rkisp1/algorithms/agc.cpp
> > index 2d436511caf7..60018db73260 100644
> > --- a/src/ipa/rkisp1/algorithms/agc.cpp
> > +++ b/src/ipa/rkisp1/algorithms/agc.cpp
> > @@ -281,6 +281,7 @@ double Agc::measureBrightness(const rkisp1_cif_isp_hist_stat *hist) const
> >   * new exposure and gain for the scene.
> >   */
> >  void Agc::process(IPAContext &context,
> > +               [[maybe_unused]] unsigned int frame,
> >                 [[maybe_unused]] RKISP1FrameContext &frameContext,
> >                 const rkisp1_stat_buffer *stats)
> >  {
> > diff --git a/src/ipa/rkisp1/algorithms/agc.h b/src/ipa/rkisp1/algorithms/agc.h
> > index 7844cd2e3b47..05bda50c5962 100644
> > --- a/src/ipa/rkisp1/algorithms/agc.h
> > +++ b/src/ipa/rkisp1/algorithms/agc.h
> > @@ -31,7 +31,8 @@ public:
> >       void prepare(IPAContext &context, unsigned int frame,
> >                    RKISP1FrameContext &frameContext,
> >                    rkisp1_params_cfg *params) override;
> > -     void process(IPAContext &context, RKISP1FrameContext &frameContext,
> > +     void process(IPAContext &context, unsigned int frame,
> > +                  RKISP1FrameContext &frameContext,
> >                    const rkisp1_stat_buffer *stats) override;
> >
> >  private:
> > diff --git a/src/ipa/rkisp1/algorithms/awb.cpp b/src/ipa/rkisp1/algorithms/awb.cpp
> > index 1af6d98c5252..b3ffa6cda4ea 100644
> > --- a/src/ipa/rkisp1/algorithms/awb.cpp
> > +++ b/src/ipa/rkisp1/algorithms/awb.cpp
> > @@ -123,6 +123,7 @@ void Awb::prepare(IPAContext &context,
> >   * \copydoc libcamera::ipa::Algorithm::process
> >   */
> >  void Awb::process([[maybe_unused]] IPAContext &context,
> > +               [[maybe_unused]] unsigned int frame,
> >                 [[maybe_unused]] RKISP1FrameContext &frameCtx,
> >                 const rkisp1_stat_buffer *stats)
> >  {
> > diff --git a/src/ipa/rkisp1/algorithms/awb.h b/src/ipa/rkisp1/algorithms/awb.h
> > index 8fd5b706861a..510fbad9958e 100644
> > --- a/src/ipa/rkisp1/algorithms/awb.h
> > +++ b/src/ipa/rkisp1/algorithms/awb.h
> > @@ -25,7 +25,8 @@ public:
> >       void prepare(IPAContext &context, unsigned int frame,
> >                    RKISP1FrameContext &frameContext,
> >                    rkisp1_params_cfg *params) override;
> > -     void process(IPAContext &context, RKISP1FrameContext &frameCtx,
> > +     void process(IPAContext &context, unsigned int frame,
> > +                  RKISP1FrameContext &frameCtx,
> >                    const rkisp1_stat_buffer *stats) override;
> >
> >  private:
> > diff --git a/src/ipa/rkisp1/rkisp1.cpp b/src/ipa/rkisp1/rkisp1.cpp
> > index f97484ce5030..b468e08a67fa 100644
> > --- a/src/ipa/rkisp1/rkisp1.cpp
> > +++ b/src/ipa/rkisp1/rkisp1.cpp
> > @@ -308,7 +308,7 @@ void IPARkISP1::processStatsBuffer(const uint32_t frame, const uint32_t bufferId
> >       unsigned int aeState = 0;
> >
> >       for (auto const &algo : algorithms())
> > -             algo->process(context_, frameContext, stats);
> > +             algo->process(context_, frame, frameContext, stats);
> >
> >       setControls(frame);
> >
> > --
> > 2.34.1
> >


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