Added FS#2939 Encoder Codec Interface + Codecs by Antonius Hellmann with additional FM Recording support and my modifications

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@10789 a1c6a512-1295-4272-9138-f99709370657

8 files changed, 128 insertions, 3 deletions

diff --git a/firmware/export/audio.h b/firmware/export/audio.h
index 9e3499e..2ee7f89 100644
--- a/firmware/export/audio.h
+++ b/firmware/export/audio.h
@@ -31,6 +31,9 @@
 #define AUDIO_STATUS_PRERECORD 8
 #define AUDIO_STATUS_ERROR 16
 
+#define AUDIO_STATUS_STAYON_FLAGS \
+    (AUDIO_STATUS_PLAY | AUDIO_STATUS_PAUSE | AUDIO_STATUS_RECORD | AUDIO_)
+
 #define AUDIOERR_DISK_FULL 1
 
 #define AUDIO_GAIN_LINEIN    0
@@ -69,6 +72,7 @@ void audio_resume(void);
 void audio_next(void);
 void audio_prev(void);
 int audio_status(void);
+bool audio_query_poweroff(void);
 int audio_track_count(void); /* SWCODEC only */
 void audio_pre_ff_rewind(void); /* SWCODEC only */
 void audio_ff_rewind(long newtime);
@@ -93,14 +97,56 @@ void audio_stop_recording(void);
 void audio_pause_recording(void);
 void audio_resume_recording(void);
 void audio_new_file(const char *filename);
+
+/* audio sources */
+enum
+{
+    AUDIO_SRC_PLAYBACK = -1,    /* for audio playback (default) */
+    AUDIO_SRC_MIC,              /* monitor mic */
+    AUDIO_SRC_LINEIN,           /* monitor line in */
+#ifdef HAVE_SPDIF_IN
+    AUDIO_SRC_SPDIF,            /* monitor spdif */
+#endif
+#if defined(HAVE_FMRADIO_IN) || defined(CONFIG_TUNER)
+    AUDIO_SRC_FMRADIO,          /* monitor fm radio */
+#endif
+    /* define new audio sources above this line */
+    AUDIO_SOURCE_LIST_END,
+    /* AUDIO_SRC_FMRADIO must be declared #ifdef CONFIG_TUNER but is not in
+       the list of recordable sources. HAVE_FMRADIO_IN implies CONFIG_TUNER. */
+#if defined(HAVE_FMRADIO_IN) || !defined(CONFIG_TUNER)
+    AUDIO_NUM_SOURCES = AUDIO_SOURCE_LIST_END,
+#else
+    AUDIO_NUM_SOURCES = AUDIO_SOURCE_LIST_END-1,
+#endif
+    AUDIO_SRC_MAX = AUDIO_NUM_SOURCES-1
+};
+
+/* channel modes */
+enum
+{
+    CHN_MODE_MONO = 1,
+    CHN_MODE_STEREO,
+};
 void audio_set_recording_options(int frequency, int quality,
                                 int source, int channel_mode,
                                 bool editable, int prerecord_time);
 void audio_set_recording_gain(int left, int right, int type);
 unsigned long audio_recorded_time(void);
 unsigned long audio_num_recorded_bytes(void);
+#if 0
+#ifdef HAVE_SPDIF_POWER
 void audio_set_spdif_power_setting(bool on);
+#endif
+#endif
 unsigned long audio_get_spdif_sample_rate(void);
+#if CONFIG_CODEC == SWCODEC
+/* audio encoder functions (defined in playback.c) */
+int  audio_get_encoder_id(void);
+void audio_load_encoder(int enc_id);
+void audio_remove_encoder(void);
+#endif /* CONFIG_CODEC == SWCODEC */
+
 
 
 
diff --git a/firmware/export/config-h100.h b/firmware/export/config-h100.h
index c21c8a1..8f93686 100644
--- a/firmware/export/config-h100.h
+++ b/firmware/export/config-h100.h
@@ -135,6 +135,9 @@
 /* Someone with H100 and BDM, please verify if this works. */
 /* #define HAVE_EEPROM */
 
+/* Define this for FM radio input available (not for SIMULATOR) */
+#define HAVE_FMRADIO_IN
+
 #endif /* !SIMULATOR */
 
 /* Define this for S/PDIF input available */
diff --git a/firmware/export/config-h120.h b/firmware/export/config-h120.h
index 5ff567c..4ac4b2b 100644
--- a/firmware/export/config-h120.h
+++ b/firmware/export/config-h120.h
@@ -132,6 +132,9 @@
 /* Define this if the EEPROM chip is used */
 #define HAVE_EEPROM_SETTINGS
 
+/* Define this for FM radio input available (not for SIMULATOR) */
+#define HAVE_FMRADIO_IN
+
 #endif /* !SIMULATOR */
 
 /* Define this for S/PDIF input available */
diff --git a/firmware/export/config-h300.h b/firmware/export/config-h300.h
index d5c54d8..c9c0b04 100644
--- a/firmware/export/config-h300.h
+++ b/firmware/export/config-h300.h
@@ -140,4 +140,7 @@
 /* Define this if there is an EEPROM chip */
 #define HAVE_EEPROM
 
+/* Define this for FM radio input available (not for SIMULATOR) */
+#define HAVE_FMRADIO_IN
+
 #endif /* SIMULATOR */
diff --git a/firmware/export/config-iaudiox5.h b/firmware/export/config-iaudiox5.h
index 8a2ed7a..d5c67c0 100644
--- a/firmware/export/config-iaudiox5.h
+++ b/firmware/export/config-iaudiox5.h
@@ -17,6 +17,7 @@
 
 /* define this if you have access to the quickscreen */
 #define HAVE_QUICKSCREEN
+
 /* define this if you have access to the pitchscreen */
 #define HAVE_PITCHSCREEN
 
@@ -81,6 +82,9 @@
    should be defined as well. */
 #define HAVE_LCD_SLEEP
 
+/* Define this for FM radio input available (not for SIMULATOR) */
+#define HAVE_FMRADIO_IN
+
 /* Define this if you have a Motorola SCF5250 */
 #define CONFIG_CPU MCF5250
 
diff --git a/firmware/export/fmradio.h b/firmware/export/fmradio.h
index 3c55fb7..7311323 100644
--- a/firmware/export/fmradio.h
+++ b/firmware/export/fmradio.h
@@ -20,6 +20,22 @@
 #ifndef FMRADIO_H
 #define FMRADIO_H
 
+/** declare some stuff here so powermgmt.c can properly tell if the radio is
+    actually playing and not just paused. This break in heirarchy is allowed
+    for audio_status(). **/
+
+/* set when radio is playing or paused within fm radio screen */
+#define FMRADIO_OFF         0x0
+#define FMRADIO_PLAYING     0x1
+#define FMRADIO_PAUSED      0x2
+
+/* returns the IN flag */
+#define FMRADIO_IN_SCREEN(s)        ((s) & FMRADIO_IN_FLAG)
+#define FMRADIO_STATUS_PLAYING(s)   ((s) & FMRADIO_PLAYING_OUT)
+#define FMRADIO_STATUS_PAUSED(s)    ((s) & FMRADIO_PAUSED_OUT)
+
+extern int  get_radio_status(void);
+
 extern int fmradio_read(int addr);
 extern void fmradio_set(int addr, int data);
 
diff --git a/firmware/export/id3.h b/firmware/export/id3.h
index 7930cd9..dc58178 100644
--- a/firmware/export/id3.h
+++ b/firmware/export/id3.h
@@ -24,7 +24,6 @@
 #include "file.h"
 
 /* Audio file types. */
-/* NOTE: When adding new audio types, also add to codec_labels[] in id3.c */
 enum {
     AFMT_UNKNOWN = 0,  /* Unknown file format */
 
@@ -46,9 +45,48 @@ enum {
 
     /* New formats must be added to the end of this list */
 
-    AFMT_NUM_CODECS
+    AFMT_NUM_CODECS,
+
+#if CONFIG_CODEC == SWCODEC
+    /* masks to decompose parts */
+    CODEC_AFMT_MASK    = 0x0fff,
+    CODEC_TYPE_MASK    = 0x7000,
+
+    /* switch for specifying codec type when requesting a filename */
+    CODEC_TYPE_DECODER = (0 << 12), /* default */
+    CODEC_TYPE_ENCODER = (1 << 12)
+#endif
 };
 
+#if CONFIG_CODEC == SWCODEC
+#define AFMT_ENTRY(label, codec_fname, codec_enc_fname, enc_ext) \
+    { label, codec_fname, codec_enc_fname, enc_ext }
+#else
+#define AFMT_ENTRY(label, codec_fname, codec_enc_fname, enc_ext) \
+    { label }
+#endif
+
+/* record describing the audio format */
+struct afmt_entry
+{
+#if CONFIG_CODEC == SWCODEC
+    char label[8];      /* format label */
+    char *codec_fn;     /* filename of decoder codec */
+    char *codec_enc_fn; /* filename of encoder codec */
+    char *ext;          /* default extension for file (enc only for now) */
+#else
+    char label[4];
+#endif
+};
+
+/* database of labels and codecs. add formats per above enum */
+extern const struct afmt_entry audio_formats[AFMT_NUM_CODECS];
+
+#if CONFIG_CODEC == SWCODEC
+/* recording quality to AFMT_* */
+extern const int rec_quality_info_afmt[9];
+#endif
+
 struct mp3entry {
     char path[MAX_PATH];
     char* title;
diff --git a/firmware/export/pcm_record.h b/firmware/export/pcm_record.h
index 5e2d7b7..b217335 100644
--- a/firmware/export/pcm_record.h
+++ b/firmware/export/pcm_record.h
@@ -20,10 +20,22 @@
 #ifndef PCM_RECORD_H
 #define PCM_RECORD_H
 
+void          enc_set_parameters(int chunk_size, int num_chunks,
+                    int samp_per_chunk, char *head_ptr, int head_size,
+                    int enc_id);
+void          enc_get_inputs(int *buffer_size, int *channels, int *quality);
+unsigned int* enc_alloc_chunk(void);
+void          enc_free_chunk(void);
+int           enc_wavbuf_near_empty(void);
+char*         enc_get_wav_data(int size);
+extern void   (*enc_set_header_callback)(void *head_buffer, int head_size,
+                                int num_pcm_samples, bool is_file_header);
+
 unsigned long pcm_rec_status(void);
 void pcm_rec_init(void);
 void pcm_rec_mux(int source);
-
+int  pcm_rec_current_bitrate(void);
+int  pcm_get_num_unprocessed(void);
 void pcm_rec_get_peaks(int *left, int *right);
 
 /* audio.h contains audio recording functions */