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| author | Michele Calgaro <[email protected]> | 2020-06-13 22:45:28 +0900 |
|---|---|---|
| committer | Michele Calgaro <[email protected]> | 2020-06-13 22:45:28 +0900 |
| commit | 5f44f7b187093ef290315b7f8766b540a31de35f (patch) | |
| tree | 27ffb7b218199ca04f240c390c52426c65f45dce /src/app/xineScope.c | |
| download | codeine-5f44f7b187093ef290315b7f8766b540a31de35f.tar.gz codeine-5f44f7b187093ef290315b7f8766b540a31de35f.zip | |
Initial code import from debian snapshot
https://snapshot.debian.org/package/codeine/1.0.1-3.dfsg-3.1/
Signed-off-by: Michele Calgaro <[email protected]>
Diffstat (limited to 'src/app/xineScope.c')
| -rw-r--r-- | src/app/xineScope.c | 148 |
1 files changed, 148 insertions, 0 deletions
diff --git a/src/app/xineScope.c b/src/app/xineScope.c new file mode 100644 index 0000000..740d574 --- /dev/null +++ b/src/app/xineScope.c @@ -0,0 +1,148 @@ +/* Author: Max Howell <[email protected]>, (C) 2004
+ Copyright: See COPYING file that comes with this distribution */
+
+/* gcc doesn't like inline for me */
+#define inline
+/* need access to port_ticket */
+#define XINE_ENGINE_INTERNAL
+
+#include "xineScope.h"
+#include <xine/post.h>
+#include <xine/xine_internal.h>
+
+
+static MyNode theList;
+static metronom_t theMetronom;
+static int myChannels = 0;
+
+MyNode* const myList = &theList;
+metronom_t* const myMetronom = &theMetronom;
+
+
+/* defined in xineEngine.cpp */
+extern void _debug( const char * );
+
+
+/*************************
+* post plugin functions *
+*************************/
+
+static int
+scope_port_open( xine_audio_port_t *port_gen, xine_stream_t *stream, uint32_t bits, uint32_t rate, int mode )
+{
+ _debug( "scope_port_open()\n" );
+
+ #define port ((post_audio_port_t*)port_gen)
+
+ _x_post_rewire( (post_plugin_t*)port->post );
+ _x_post_inc_usage( port );
+
+ port->stream = stream;
+ port->bits = bits;
+ port->rate = rate;
+ port->mode = mode;
+
+ myChannels = _x_ao_mode2channels( mode );
+
+ return port->original_port->open( port->original_port, stream, bits, rate, mode );
+}
+
+static void
+scope_port_close( xine_audio_port_t *port_gen, xine_stream_t *stream )
+{
+ _debug( "scope_port_close()\n" );
+
+ port->stream = NULL;
+ port->original_port->close( port->original_port, stream );
+
+ _x_post_dec_usage( port );
+}
+
+static void
+scope_port_put_buffer( xine_audio_port_t *port_gen, audio_buffer_t *buf, xine_stream_t *stream )
+{
+ MyNode *new_node;
+ const int num_samples = buf->num_frames * myChannels;
+
+ /* we are too simple to handle 8bit */
+ /* what does it mean when stream == NULL? */
+ if( port->bits == 8 ) {
+ port->original_port->put_buffer( port->original_port, buf, stream ); return; }
+
+ /* I keep my own metronom because xine wouldn't for some reason */
+ memcpy( myMetronom, stream->metronom, sizeof(metronom_t) );
+
+ new_node = malloc( sizeof(MyNode) );
+ new_node->vpts = myMetronom->got_audio_samples( myMetronom, buf->vpts, buf->num_frames );
+ new_node->num_frames = buf->num_frames;
+ new_node->mem = malloc( num_samples * 2 );
+ memcpy( new_node->mem, buf->mem, num_samples * 2 );
+
+ {
+ int64_t
+ K = myMetronom->pts_per_smpls; /*smpls = 1<<16 samples*/
+ K *= num_samples;
+ K /= (1<<16);
+ K += new_node->vpts;
+
+ new_node->vpts_end = K;
+ }
+
+ /* pass data to original port */
+ port->original_port->put_buffer( port->original_port, buf, stream );
+
+ /* finally we should append the current buffer to the list
+ * NOTE this is thread-safe due to the way we handle the list in the GUI thread */
+ new_node->next = myList->next;
+ myList->next = new_node;
+
+ #undef port
+}
+
+static void
+scope_dispose( post_plugin_t *this )
+{
+ free( this );
+}
+
+
+/************************
+* plugin init function *
+************************/
+
+xine_post_t*
+scope_plugin_new( xine_t *xine, xine_audio_port_t *audio_target )
+{
+ if( audio_target == NULL )
+ return NULL;
+
+ post_plugin_t *post_plugin = xine_xmalloc( sizeof(post_plugin_t) );
+
+ {
+ post_plugin_t *this = post_plugin;
+ post_in_t *input;
+ post_out_t *output;
+ post_audio_port_t *port;
+
+ _x_post_init( this, 1, 0 );
+
+ port = _x_post_intercept_audio_port( this, audio_target, &input, &output );
+ port->new_port.open = scope_port_open;
+ port->new_port.close = scope_port_close;
+ port->new_port.put_buffer = scope_port_put_buffer;
+
+ this->xine_post.audio_input[0] = &port->new_port;
+ this->xine_post.type = PLUGIN_POST;
+
+ this->dispose = scope_dispose;
+ }
+
+ /* code is straight from xine_init_post()
+ can't use that function as it only dlopens the plugins
+ and our plugin is statically linked in */
+
+ post_plugin->running_ticket = xine->port_ticket;
+ post_plugin->xine = xine;
+
+ return &post_plugin->xine_post;
+}
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