From a222f27c4a17ed8f9809cda7861fe5f23d4cc0c1 Mon Sep 17 00:00:00 2001 From: Michael Sevakis Date: Sat, 29 Dec 2007 19:46:35 +0000 Subject: 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 --- apps/plugins/mpegplayer/pcm_output.h | 46 ++++++++++++++++++++++++++++++++++++ 1 file changed, 46 insertions(+) create mode 100644 apps/plugins/mpegplayer/pcm_output.h (limited to 'apps/plugins/mpegplayer/pcm_output.h') 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 */ -- cgit v1.2.3