mpegplayer: Make playback engine fully seekable and frame-accurate and split into logical parts. Be sure to have all current features work. Actual UI for seeking will be added soon. Recommended GOP size is about 15-30 frames depending on target or seeking can be slow with really long GOPs (nature of MPEG video). More refined encoding recommendations for a particular player should be posted soon.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15977 a1c6a512-1295-4272-9138-f99709370657

1 files changed, 46 insertions, 0 deletions

diff --git a/apps/plugins/mpegplayer/pcm_output.h b/apps/plugins/mpegplayer/pcm_output.h
new file mode 100644
index 0000000000..8a230b87a5
--- /dev/null
+++ b/apps/plugins/mpegplayer/pcm_output.h
@@ -0,0 +1,46 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * PCM output buffer declarations
+ *
+ * Copyright (c) 2007 Michael Sevakis
+ *
+ * All files in this archive are subject to the GNU General Public License.
+ * See the file COPYING in the source tree root for full license agreement.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+#ifndef PCM_OUTPUT_H
+#define PCM_OUTPUT_H
+
+struct pcm_frame_header   /* Header added to pcm data every time a decoded
+                             audio frame is sent out */
+{
+    uint32_t size;        /* size of this frame - including header */
+    uint32_t time;        /* timestamp for this frame in audio ticks */
+    unsigned char data[]; /* open array of audio data */
+} ALIGNED_ATTR(4);
+
+bool pcm_output_init(void);
+void pcm_output_exit(void);
+void pcm_output_flush(void);
+void pcm_output_set_clock(uint32_t time);
+uint32_t pcm_output_get_clock(void);
+uint32_t pcm_output_get_ticks(uint32_t *start);
+void pcm_output_play_pause(bool play);
+void pcm_output_stop(void);
+void pcm_output_drain(void);
+struct pcm_frame_header * pcm_output_get_buffer(void);
+void pcm_output_add_data(void);
+ssize_t pcm_output_used(void);
+ssize_t pcm_output_free(void);
+
+#endif /* PCM_OUTPUT_H */