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roq-player.c
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roq-player.c
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/*
* Roq-Player by Andress Barajas
*
* This is the playback engine. Handles displaying video
* and playing audio that is decoded by the decoder engine.
*/
#include <kos/thread.h>
#include <dc/sound/stream.h>
#include <dc/pvr.h>
#include <arch/timer.h>
#include <arch/cache.h>
#include <stdlib.h>
#include <string.h>
#include "dreamroqlib.h"
#include "roq-player.h"
#define SND_STREAM_STATUS_NULL 0x00
#define SND_STREAM_STATUS_READY 0x01
#define SND_STREAM_STATUS_STREAMING 0x02
#define SND_STREAM_STATUS_PAUSING 0x03
#define SND_STREAM_STATUS_STOPPING 0x04
#define SND_STREAM_STATUS_RESUMING 0x05
#define SND_STREAM_STATUS_DONE 0x06
#define SND_STREAM_STATUS_ERROR 0x07
#define ROQ_SAMPLE_RATE 22050
int player_errno = 0;
struct roq_player_t {
roq_t* decoder;
int paused;
int initialized_format;
};
typedef struct {
unsigned char *buffer;
int head;
int tail;
int size;
int capacity;
} ring_buffer;
#define AUDIO_BUFFER_SIZE 1024*160
#define AUDIO_DECODE_BUFFER_SIZE 1024*1024
typedef int snd_stream_hnd_t;
typedef struct {
int initialized;
snd_stream_hnd_t shnd;
volatile int status;
unsigned int vol;
unsigned int rate;
unsigned int channels;
mutex_t decode_buffer_mut;
ring_buffer decode_buffer;
unsigned char pcm_buffer[AUDIO_BUFFER_SIZE];
} sound_hndlr;
typedef struct {
int framerate;
int initialized;
int frame_index;
int texture_byte_length;
pvr_ptr_t textures[2];
pvr_poly_hdr_t hdr[2];
pvr_vertex_t vert[4];
} video_hndlr;
static void* player_snd_thread();
static void* aica_callback(snd_stream_hnd_t hnd, int req, int* done);
static void roq_loop_cb(void* user_data);
static void roq_video_cb(unsigned short *buf, int width, int height, int stride, int texture_height, void* user_data);
static void roq_audio_cb(unsigned char *buf, int size, int channels, void* user_data);
static void initialize_defaults(roq_player_t* player, int index);
static int initialize_graphics(int width, int height);
static int initialize_audio(void);
static int ring_buffer_write(ring_buffer *rb, const unsigned char *data, int data_length);
static int ring_buffer_read(ring_buffer *rb, unsigned char *data, int data_length);
static int ring_buffer_underflow(ring_buffer *rb, int data_length);
static unsigned int get_current_time();
static video_hndlr vid_stream;
static sound_hndlr snd_stream;
static kthread_t* audio_thread;
static int playing_loop;
// Used to keep video @ 30fps
static unsigned int last_frame_time = 0;
static unsigned int target_frame_time = 1000 / 30; // Target frame time in milliseconds
int player_init(void) {
snd_stream_init();
pvr_init_defaults();
snd_stream.shnd = SND_STREAM_INVALID;
snd_stream.vol = 240;
snd_stream.rate = ROQ_SAMPLE_RATE;
snd_stream.status = SND_STREAM_STATUS_NULL;
audio_thread = thd_create(0, player_snd_thread, NULL);
if(audio_thread != NULL) {
snd_stream.status = SND_STREAM_STATUS_READY;
return PLAYER_SUCCESS;
}
else {
snd_stream.status = SND_STREAM_STATUS_ERROR;
return PLAYER_ERROR;
}
}
void player_shutdown(roq_player_t* player) {
snd_stream.status = SND_STREAM_STATUS_DONE;
playing_loop = 0;
thd_join(audio_thread, NULL);
if(snd_stream.shnd != SND_STREAM_INVALID) {
snd_stream_stop(snd_stream.shnd);
snd_stream_destroy(snd_stream.shnd);
snd_stream.shnd = SND_STREAM_INVALID;
snd_stream.vol = 240;
snd_stream.status = SND_STREAM_STATUS_NULL;
}
if(vid_stream.initialized) {
vid_stream.initialized = 0;
vid_stream.frame_index = 0;
vid_stream.texture_byte_length = 0;
pvr_mem_free(vid_stream.textures[0]);
pvr_mem_free(vid_stream.textures[1]);
}
if(snd_stream.initialized) {
snd_stream.initialized = 0;
free(snd_stream.decode_buffer.buffer);
mutex_destroy(&snd_stream.decode_buffer_mut);
}
if(player != NULL && player->initialized_format) {
roq_destroy(player->decoder);
free(player);
player = NULL;
}
}
roq_player_t* player_create(const char* filename) {
snd_stream_hnd_t index;
roq_player_t* player = NULL;
if(filename == NULL) {
player_errno = PLAYER_SOURCE_ERROR;
return NULL;
}
index = snd_stream_alloc(aica_callback, SND_STREAM_BUFFER_MAX/4);
if(index == SND_STREAM_INVALID) {
snd_stream_destroy(index);
player_errno = PLAYER_SND_INIT_FAILURE;
return NULL;
}
player = malloc(sizeof(roq_player_t));
if(!player) {
snd_stream_destroy(index);
player_errno = PLAYER_OUT_OF_MEMORY;
return NULL;
}
player->decoder = roq_create_with_filename(filename);
if(!player->decoder) {
snd_stream_destroy(index);
player_errno = PLAYER_FORMAT_INIT_FAILURE;
return NULL;
}
initialize_defaults(player, index);
return player;
}
roq_player_t* player_create_file(FILE* file) {
snd_stream_hnd_t index;
roq_player_t* player = NULL;
if(file == NULL) {
player_errno = PLAYER_SOURCE_ERROR;
return NULL;
}
index = snd_stream_alloc(aica_callback, SND_STREAM_BUFFER_MAX/4);
if(index == SND_STREAM_INVALID) {
snd_stream_destroy(index);
player_errno = PLAYER_SND_INIT_FAILURE;
return NULL;
}
player = malloc(sizeof(roq_player_t));
if(!player) {
snd_stream_destroy(index);
player_errno = PLAYER_OUT_OF_MEMORY;
return NULL;
}
player->decoder = roq_create_with_file(file, 1);
if(!player->decoder) {
snd_stream_destroy(index);
player_errno = PLAYER_FORMAT_INIT_FAILURE;
return NULL;
}
initialize_defaults(player, index);
return player;
}
roq_player_t* player_create_memory(unsigned char* memory, const unsigned int length) {
snd_stream_hnd_t index;
roq_player_t* player = NULL;
index = snd_stream_alloc(aica_callback, SND_STREAM_BUFFER_MAX/4);
if(memory == NULL) {
player_errno = PLAYER_SOURCE_ERROR;
return NULL;
}
if(index == SND_STREAM_INVALID) {
snd_stream_destroy(index);
player_errno = PLAYER_SND_INIT_FAILURE;
return NULL;
}
player = malloc(sizeof(roq_player_t));
if(!player) {
snd_stream_destroy(index);
player_errno = PLAYER_OUT_OF_MEMORY;
return NULL;
}
player->decoder = roq_create_with_memory(memory, length, 1);
if(!player->decoder) {
snd_stream_destroy(index);
player_errno = PLAYER_FORMAT_INIT_FAILURE;
return NULL;
}
initialize_defaults(player, index);
return player;
}
void player_play(roq_player_t* player, frame_callback frame_cb) {
if(snd_stream.status == SND_STREAM_STATUS_STREAMING)
return;
player->paused = 0;
snd_stream.status = SND_STREAM_STATUS_RESUMING;
// Protect against recursion bc we can call player_play() in
// frame_cb()
if(!playing_loop)
{
playing_loop = 1;
do {
if(frame_cb)
frame_cb();
// We shutdown the player, exit the loop
if(snd_stream.status == SND_STREAM_STATUS_NULL) {
break;
}
if(!player->paused)
roq_decode(player->decoder);
} while (!roq_has_ended(player->decoder));
}
}
void player_pause(roq_player_t* player) {
player->paused = 1;
if(snd_stream.status != SND_STREAM_STATUS_READY &&
snd_stream.status != SND_STREAM_STATUS_PAUSING)
snd_stream.status = SND_STREAM_STATUS_PAUSING;
}
void player_stop(roq_player_t* player) {
player->paused = 1;
roq_rewind(player->decoder);
if(snd_stream.status != SND_STREAM_STATUS_READY &&
snd_stream.status != SND_STREAM_STATUS_STOPPING)
snd_stream.status = SND_STREAM_STATUS_STOPPING;
}
void player_volume(roq_player_t* player, int vol) {
if(snd_stream.shnd == SND_STREAM_INVALID)
return;
if(vol > 255)
vol = 255;
if(vol < 0)
vol = 0;
snd_stream.vol = vol;
snd_stream_volume(snd_stream.shnd, snd_stream.vol);
}
int player_isplaying(roq_player_t* player) {
return snd_stream.status == SND_STREAM_STATUS_STREAMING;
}
int player_get_loop(roq_player_t* player) {
return roq_get_loop(player->decoder);
}
void player_set_loop(roq_player_t* player, int loop) {
roq_set_loop(player->decoder, loop, roq_loop_cb);
}
int player_has_ended(roq_player_t* player) {
return roq_has_ended(player->decoder);
}
static void roq_loop_cb(void* user_data) {
}
static void roq_video_cb(unsigned short *texture_data, int width, int height, int stride, int texture_height, void* user_data) {
// DMA causes artifacts
// dcache_flush_range((uint32)texture_data, vid_stream.texture_byte_length); // dcache flush is needed when using DMA
// pvr_txr_load_dma(texture_data, vid_stream.textures[vid_stream.frame_index], vid_stream.texture_byte_length, 1, NULL, 0);
pvr_txr_load(texture_data, vid_stream.textures[vid_stream.frame_index], stride * texture_height * 2);
unsigned int elapsed_time = get_current_time() - last_frame_time; // Calculate elapsed time since last frame
//printf("%u\n", elapsed_time);
if (elapsed_time < target_frame_time) {
thd_sleep(target_frame_time - elapsed_time);
}
pvr_wait_ready();
pvr_scene_begin();
pvr_list_begin(PVR_LIST_OP_POLY);
pvr_prim(&vid_stream.hdr[vid_stream.frame_index], sizeof(pvr_poly_hdr_t));
pvr_prim(&vid_stream.vert[0], sizeof(pvr_vertex_t));
pvr_prim(&vid_stream.vert[1], sizeof(pvr_vertex_t));
pvr_prim(&vid_stream.vert[2], sizeof(pvr_vertex_t));
pvr_prim(&vid_stream.vert[3], sizeof(pvr_vertex_t));
pvr_list_finish();
pvr_scene_finish();
// Update the last frame time
last_frame_time = get_current_time();
vid_stream.frame_index = !vid_stream.frame_index;
}
static void roq_audio_cb(unsigned char *audio_data, int data_length, int channels, void* user_data) {
snd_stream.channels = channels;
mutex_lock(&snd_stream.decode_buffer_mut);
ring_buffer_write(&snd_stream.decode_buffer, audio_data, data_length);
mutex_unlock(&snd_stream.decode_buffer_mut);
}
static void* aica_callback(snd_stream_hnd_t hnd, int bytes_needed, int* bytes_returning) {
if(ring_buffer_underflow(&snd_stream.decode_buffer, bytes_needed))
thd_pass();
mutex_lock(&snd_stream.decode_buffer_mut);
ring_buffer_read(&snd_stream.decode_buffer, snd_stream.pcm_buffer, bytes_needed);
mutex_unlock(&snd_stream.decode_buffer_mut);
*bytes_returning = bytes_needed;
return snd_stream.pcm_buffer;
}
static void initialize_defaults(roq_player_t* player, int index) {
roq_set_video_decode_callback(player->decoder, roq_video_cb);
roq_set_audio_decode_callback(player->decoder, roq_audio_cb);
vid_stream.framerate = roq_get_framerate(player->decoder);
snd_stream.shnd = index;
snd_stream.status = SND_STREAM_STATUS_READY;
player->initialized_format = 1;
initialize_graphics(roq_get_width(player->decoder), roq_get_height(player->decoder));
initialize_audio();
}
static int initialize_graphics(int width, int height) {
if(vid_stream.initialized)
return PLAYER_SUCCESS;
vid_stream.texture_byte_length = width * height * 2;
vid_stream.textures[0] = pvr_mem_malloc(vid_stream.texture_byte_length);
vid_stream.textures[1] = pvr_mem_malloc(vid_stream.texture_byte_length);
if (!vid_stream.textures[0] || !vid_stream.textures[1])
return PLAYER_OUT_OF_VID_MEMORY;
pvr_poly_cxt_t cxt;
pvr_poly_cxt_txr(&cxt, PVR_LIST_OP_POLY, PVR_TXRFMT_RGB565 | PVR_TXRFMT_NONTWIDDLED, width, height, vid_stream.textures[0], PVR_FILTER_NONE);// PVR_FILTER_BILINEAR); //PVR_FILTER_NONE
pvr_poly_compile(&vid_stream.hdr[0], &cxt);
pvr_poly_cxt_txr(&cxt, PVR_LIST_OP_POLY, PVR_TXRFMT_RGB565 | PVR_TXRFMT_NONTWIDDLED, width, height, vid_stream.textures[1], PVR_FILTER_NONE); //PVR_FILTER_BILINEAR); //PVR_FILTER_NONE
pvr_poly_compile(&vid_stream.hdr[1], &cxt);
vid_stream.vert[0].z = vid_stream.vert[1].z = vid_stream.vert[2].z = vid_stream.vert[3].z = 1.0f;
vid_stream.vert[0].argb = vid_stream.vert[1].argb = vid_stream.vert[2].argb = vid_stream.vert[3].argb = PVR_PACK_COLOR(1.0f, 1.0f, 1.0f, 1.0f);
vid_stream.vert[0].oargb = vid_stream.vert[1].oargb = vid_stream.vert[2].oargb = vid_stream.vert[3].oargb = 0;
vid_stream.vert[0].flags = vid_stream.vert[1].flags = vid_stream.vert[2].flags = PVR_CMD_VERTEX;
vid_stream.vert[3].flags = PVR_CMD_VERTEX_EOL;
float ratio;
int ul_x, ul_y, br_x, br_y;
ratio = 640.0 / width;
ul_x = 0;
br_x = (ratio * width);
ul_y = ((480 - ratio * height) / 2);
br_y = ul_y + ratio * height;
vid_stream.vert[0].x = ul_x;
vid_stream.vert[0].y = ul_y;
vid_stream.vert[0].u = 0.0;
vid_stream.vert[0].v = 0.0;
vid_stream.vert[1].x = br_x;
vid_stream.vert[1].y = ul_y;
vid_stream.vert[1].u = 1.0;
vid_stream.vert[1].v = 0.0;
vid_stream.vert[2].x = ul_x;
vid_stream.vert[2].y = br_y;
vid_stream.vert[2].u = 0.0;
vid_stream.vert[2].v = 1.0;
vid_stream.vert[3].x = br_x;
vid_stream.vert[3].y = br_y;
vid_stream.vert[3].u = 1.0;
vid_stream.vert[3].v = 1.0;
vid_stream.initialized = 1;
return PLAYER_SUCCESS;
}
static int initialize_audio(void) {
if(snd_stream.initialized)
return PLAYER_SUCCESS;
snd_stream.decode_buffer.head = 0;
snd_stream.decode_buffer.tail = 0;
snd_stream.decode_buffer.size = 0;
snd_stream.decode_buffer.capacity = AUDIO_DECODE_BUFFER_SIZE;
snd_stream.decode_buffer.buffer = malloc(AUDIO_DECODE_BUFFER_SIZE);
if(snd_stream.decode_buffer.buffer == NULL)
return PLAYER_OUT_OF_MEMORY;
mutex_init(&snd_stream.decode_buffer_mut, MUTEX_TYPE_NORMAL);
snd_stream.initialized = 1;
return PLAYER_SUCCESS;
}
static void* player_snd_thread() {
while(snd_stream.status != SND_STREAM_STATUS_DONE && snd_stream.status != SND_STREAM_STATUS_ERROR) {
switch(snd_stream.status)
{
case SND_STREAM_STATUS_READY:
break;
case SND_STREAM_STATUS_RESUMING:
snd_stream_start(snd_stream.shnd, snd_stream.rate, snd_stream.channels-1);
snd_stream.status = SND_STREAM_STATUS_STREAMING;
break;
case SND_STREAM_STATUS_PAUSING:
snd_stream_stop(snd_stream.shnd);
snd_stream.status = SND_STREAM_STATUS_READY;
break;
case SND_STREAM_STATUS_STOPPING:
snd_stream_stop(snd_stream.shnd);
snd_stream.decode_buffer.head = 0;
snd_stream.decode_buffer.tail = 0;
snd_stream.decode_buffer.size = 0;
snd_stream.status = SND_STREAM_STATUS_READY;
break;
case SND_STREAM_STATUS_STREAMING:
snd_stream_poll(snd_stream.shnd);
thd_sleep(10);
break;
}
}
return NULL;
}
static int ring_buffer_write(ring_buffer *rb, const unsigned char *data, int data_length) {
if (data_length > rb->capacity - rb->size) {
return 0;
}
for (int i = 0; i < data_length; ++i) {
rb->buffer[rb->head] = data[i];
rb->head = (rb->head + 1) % rb->capacity;
}
rb->size += data_length;
return 1;
}
static int ring_buffer_read(ring_buffer *rb, unsigned char *data, int data_length) {
if (data_length > rb->size) {
return 0;
}
for (int i = 0; i < data_length; ++i) {
data[i] = rb->buffer[rb->tail];
rb->tail = (rb->tail + 1) % rb->capacity;
}
rb->size -= data_length;
return 1;
}
static int ring_buffer_underflow(ring_buffer *rb, int data_length) {
if (data_length > rb->size) {
return 1;
}
return 0;
}
static unsigned int get_current_time() {
uint32_t s, ms;
uint64_t msec;
timer_ms_gettime(&s, &ms);
msec = (((uint64_t)s) * ((uint64_t)1000)) + ((uint64_t)ms);
return (unsigned int)msec;
}