[vlc-devel] commit: Adding a invmem-chroma option (Hugo Beauzee-Luyssen )

[git version control]

vlc | branch: master | Hugo Beauzee-Luyssen <beauze.h at gmail.com> | Wed Sep 23 17:30:44 2009 +0200| [ba676907b0e64a490d26ff375b4fc33751c95123] | committer: Rémi Denis-Courmont 

Adding a invmem-chroma option

Signed-off-by: Rémi Denis-Courmont <remi at remlab.net>

> http://git.videolan.org/gitweb.cgi/vlc.git/?a=commit;h=ba676907b0e64a490d26ff375b4fc33751c95123
---

 modules/codec/invmem.c |   80 +++++++++++++++++++++++++++++++++++++++++------
 1 files changed, 69 insertions(+), 11 deletions(-)

diff --git a/modules/codec/invmem.c b/modules/codec/invmem.c
index 7b6d97f..d18513c 100644
--- a/modules/codec/invmem.c
+++ b/modules/codec/invmem.c
@@ -67,12 +67,17 @@ static picture_t *DecodeBlock  ( decoder_t *, block_t ** );
 #define T_DATA N_( "Callback data" )
 #define LT_DATA N_( "Data for the locking and unlocking functions" )
 
+#define T_CHROMA N_("Chroma")
+#define LT_CHROMA N_("Output chroma for the memory image as a 4-character " \
+                      "string, eg. \"RV32\".")
+
 #define INVMEM_HELP N_( "This module make possible making video stream from raw-image " \
                         "generating (to memory) from rendering program uses libvlc. " \
                         "To use this module from libvlc set --codec to invmem, "\
                         "set all --invmem-* options in vlc_argv an use " \
                         "libvlc_media_new(libvlc, \"fake://\", &ex);. " \
                         "Besides is simillar to vmem video output module." )
+
 vlc_module_begin()
     set_category( CAT_INPUT )
     set_subcategory( SUBCAT_INPUT_VCODEC )
@@ -88,6 +93,7 @@ vlc_module_begin()
     add_string( "invmem-lock", "0", NULL, T_LOCK, LT_LOCK, true )
     add_string( "invmem-unlock", "0", NULL, T_UNLOCK, LT_UNLOCK, true )
     add_string( "invmem-data", "0", NULL, T_DATA, LT_DATA, true )
+    add_string( "invmem-chroma", "RV24", NULL, T_CHROMA, LT_CHROMA, true)
 vlc_module_end()
 
 
@@ -101,6 +107,8 @@ struct decoder_sys_t
     int i_height;
     int i_pitch;
 
+    vlc_fourcc_t i_chroma;
+
     picture_t *p_pic;
 };
 
@@ -113,6 +121,7 @@ static int OpenDecoder( vlc_object_t *p_this )
     decoder_t *p_dec = (decoder_t*)p_this;
     decoder_sys_t *p_sys;
     char *psz_tmp;
+    int pitch;
 
     if( p_dec->fmt_in.i_codec != VLC_FOURCC('f','a','k','e'))
     {
@@ -123,14 +132,14 @@ static int OpenDecoder( vlc_object_t *p_this )
     if( ( p_dec->p_sys = p_sys = malloc(sizeof(decoder_sys_t)) ) == NULL )
         return VLC_ENOMEM;
 
-    // get parametrs
+    // get parameters
+    char* chromaStr = var_CreateGetString( p_dec, "invmem-chroma" );
     p_sys->i_width = var_CreateGetInteger( p_this, "invmem-width" );
     p_sys->i_height = var_CreateGetInteger( p_this, "invmem-height" );
     if( p_sys->i_width == 0 || p_sys->i_height == 0 )
     {
         msg_Err( p_dec, "--invmem-width and --invmem-height must be > 0" );
-        free( p_sys );
-        return VLC_EGENERIC;
+        goto error;
     }
 
     psz_tmp = var_CreateGetString( p_dec, "invmem-lock" );
@@ -148,22 +157,67 @@ static int OpenDecoder( vlc_object_t *p_this )
     if( !p_sys->pf_lock || !p_sys->pf_unlock )
     {
         msg_Err( p_dec, "Invalid lock or unlock callbacks" );
-        free( p_sys );
-        return VLC_EGENERIC;
+        goto error;
+    }
+
+    if ( chromaStr == NULL )
+    {
+        msg_Err( p_dec, "Invalid invmem-chroma string." );
+        goto error;
+    }
+    const vlc_fourcc_t chroma = vlc_fourcc_GetCodecFromString( VIDEO_ES, chromaStr );
+
+    if ( !chroma )
+    {
+        msg_Err( p_dec, "invmem-chroma should be 4 characters long." );
+        goto error;
     }
 
     /* Set output properties */
-    //p_dec->fmt_out.i_codec = VLC_CODEC_RGBA;
-    p_dec->fmt_out.i_codec = VLC_CODEC_RGB24;
+    switch (chroma)
+    {
+    case VLC_CODEC_RGB15:
+        p_dec->fmt_out.video.i_rmask = 0x001f;
+        p_dec->fmt_out.video.i_gmask = 0x03e0;
+        p_dec->fmt_out.video.i_bmask = 0x7c00;
+        pitch = p_sys->i_width * 2;
+        break;
+    case VLC_CODEC_RGB16:
+        p_dec->fmt_out.video.i_rmask = 0x001f;
+        p_dec->fmt_out.video.i_gmask = 0x07e0;
+        p_dec->fmt_out.video.i_bmask = 0xf800;
+        pitch = p_sys->i_width * 2;
+        break;
+    case VLC_CODEC_RGB24:
+        p_dec->fmt_out.video.i_rmask = 0xff0000;
+        p_dec->fmt_out.video.i_gmask = 0x00ff00;
+        p_dec->fmt_out.video.i_bmask = 0x0000ff;
+        pitch = p_sys->i_width * 3;
+        break;
+    case VLC_CODEC_RGB32:
+        p_dec->fmt_out.video.i_rmask = 0xff0000;
+        p_dec->fmt_out.video.i_gmask = 0x00ff00;
+        p_dec->fmt_out.video.i_bmask = 0x0000ff;
+        pitch = p_sys->i_width * 4;
+        break;
+    default:
+        p_dec->fmt_out.video.i_rmask = 0;
+        p_dec->fmt_out.video.i_gmask = 0;
+        p_dec->fmt_out.video.i_bmask = 0;
+        pitch = 0;
+        msg_Warn( p_dec, "Unknown chroma %s", chromaStr );
+        goto error;
+    }
+
+    free( chromaStr );
+
+    p_dec->fmt_out.i_codec = chroma;
     p_dec->fmt_out.video.i_width = p_dec->p_sys->i_width;
     p_dec->fmt_out.video.i_height = p_dec->p_sys->i_height;
     p_dec->fmt_out.video.i_aspect = VOUT_ASPECT_FACTOR * p_dec->p_sys->i_width / p_dec->p_sys->i_height;
-    p_dec->fmt_out.video.i_rmask = 0xff0000;
-    p_dec->fmt_out.video.i_gmask = 0x00ff00;
-    p_dec->fmt_out.video.i_bmask = 0x0000ff;
     p_dec->fmt_out.i_cat = VIDEO_ES;
 
-    p_sys->i_pitch = p_sys->i_width*3 + p_sys->i_width%4;
+    p_sys->i_pitch = pitch;
 
     p_sys->p_pic = NULL;
 
@@ -171,6 +225,10 @@ static int OpenDecoder( vlc_object_t *p_this )
     p_dec->pf_decode_video = DecodeBlock;
 
     return VLC_SUCCESS;
+error:
+    free( p_sys );
+    free( chromaStr );
+    return VLC_EGENERIC;
 }
 
 /****************************************************************************