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working mpegplayer example

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git-svn-id: http://svn2.nishi.boats/svn/milsko/trunk@506 b9cfdab3-6d41-4d17-bbe4-086880011989
This commit is contained in:
NishiOwO
2025-10-30 01:04:54 +00:00
parent 1e11963ff4
commit c8c03ef89b
7 changed files with 624 additions and 18 deletions
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6
GNUmakefile
View File

@@ -161,10 +161,10 @@ EXAMPLES = examples/basic/example$(EXEC) examples/basic/rotate$(EXEC) examples/b
ifeq ($(OPENGL),1)
L_OBJS += src/widget/opengl.o
MP_OBJS = examples/mpegplayer/main.o
MP_OBJS = examples/mpegplayer/mpegplayer.o
MP_OBJS += external/pl_mpeg.o external/stb_ds.o external/miniaudio.o
EXAMPLES += examples/gldemos/clock$(EXEC) examples/gldemos/triangle$(EXEC) examples/gldemos/gears$(EXEC) examples/gldemos/boing$(EXEC) examples/gldemos/cube$(EXEC) examples/gldemos/tripaint$(EXEC) examples/mpegplayer/mpegplayer$(EXEC)
EXAMPLES += examples/gldemos/clock$(EXEC) examples/gldemos/triangle$(EXEC) examples/gldemos/gears$(EXEC) examples/gldemos/boing$(EXEC) examples/gldemos/cube$(EXEC) examples/gldemos/tripaint$(EXEC)
endif
ifeq ($(VULKAN),1)
@@ -211,7 +211,7 @@ src/%.o: src/%.c
$(CC) $(L_CFLAGS) -c -o $@ $<
external/%.o: external/%.c
$(CC) $(L_CFLAGS) -Wno-unused-value -Wno-unused-parameter -Wno-unused-function -c -o $@ $<
$(CC) $(L_CFLAGS) -Wno-unused-value -Wno-unused-parameter -Wno-unused-function -Wno-stringop-overflow -c -o $@ $<
examples/%.o: examples/%.c
$(CC) $(E_CFLAGS) -c -o $@ $<

5
examples/mpegplayer/common.h
View File

@@ -1,5 +0,0 @@
/* $Id$ */
#include <Mw/Milsko.h>
extern MwWidget wWindow, wOpengl;
extern MwWidget bPlay, bPause;

299
examples/mpegplayer/main.c
View File

@@ -1,24 +1,311 @@
/* $Id$ */
#include "common.h"
#include <Mw/Milsko.h>
#include <Mw/Widget/OpenGL.h>
#include "../../external/pl_mpeg.h"
#include "../../external/miniaudio.h"
#include "../../external/stb_ds.h"
#ifdef _WIN32
#include <windows.h>
#else
#include <pthread.h>
#include <unistd.h>
#endif
typedef struct buffer {
unsigned char* buffer;
int seek;
int size;
} buffer_t;
typedef struct frame {
unsigned char* buffer;
int width;
int height;
int count;
} frame_t;
MwWidget wWindow, wOpengl;
MwWidget bPlay, bPause;
plm_t* plm;
GLuint tex;
buffer_t* buffers = NULL;
frame_t* frames = NULL;
ma_mutex mutex;
ma_event event;
ma_device device;
ma_device_config config;
int paused = 0;
int quit = 0;
int wait = 16;
int v = 0, r = 1;
#ifdef _WIN32
HANDLE thread;
#else
pthread_t thread;
#endif
#ifdef _WIN32
static DWORD WINAPI thread_routine(void* arg){
#else
static void* thread_routine(void* arg){
#endif
(void)arg;
ma_event_wait(&event);
while(!plm_has_ended(plm) && !quit){
ma_mutex_lock(&mutex);
if(arrlen(frames) > 10 || paused){
ma_mutex_unlock(&mutex);
#ifdef _WIN32
Sleep(1);
#else
usleep(1000);
#endif
}else{
ma_mutex_unlock(&mutex);
v = 0;
plm_decode(plm, wait / 1000.0);
}
}
#ifdef _WIN32
return 0;
#else
return NULL;
#endif
}
static void data_callback(ma_device* device, void* out, const void* in, ma_uint32 frame){
int fsz = sizeof(float) * frame * 2;
int bsz = 0;
(void)device;
(void)in;
memset(out, 0, sizeof(float) * frame * 2);
ma_mutex_lock(&mutex);
while(fsz > 0 && arrlen(buffers) > 0){
int sz = 0;
if(fsz > (buffers[0].size - buffers[0].seek)){
sz = buffers[0].size - buffers[0].seek;
}else{
sz = fsz;
}
memcpy(bsz + (unsigned char*)out, buffers[0].buffer + buffers[0].seek, sz);
buffers[0].seek += sz;
fsz -= sz;
bsz += sz;
if(buffers[0].seek >= buffers[0].size){
free(buffers[0].buffer);
arrdel(buffers, 0);
}
}
ma_mutex_unlock(&mutex);
}
double a = 0;
static void tick(MwWidget handle, void* user, void* call){
(void)handle;
(void)user;
(void)call;
ma_mutex_lock(&mutex);
if(arrlen(frames) > 0){
double f = (1000.0 / wait) / plm_get_framerate(plm);
if(frames[0].count == 0){
glBindTexture(GL_TEXTURE_2D, tex);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, frames[0].width, frames[0].height, 0, GL_RGB, GL_UNSIGNED_BYTE, frames[0].buffer);
glBindTexture(GL_TEXTURE_2D, 0);
}
frames[0].count++;
if(f >= 1 && frames[0].count >= (int)f + (int)a){
a += f - (int)f;
if(a > 1) a--;
free(frames[0].buffer);
arrdel(frames, 0);
}else if(f < 1){
free(frames[0].buffer);
arrdel(frames, 0);
}
}
ma_mutex_unlock(&mutex);
glClear(GL_COLOR_BUFFER_BIT);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glOrtho(0, 1, 1, 0, -1, 1);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
glEnable(GL_TEXTURE_2D);
glBindTexture(GL_TEXTURE_2D, tex);
glBegin(GL_QUADS);
glTexCoord2f(0, 0); glVertex2f(0, 0);
glTexCoord2f(0, 1); glVertex2f(0, 1);
glTexCoord2f(1, 1); glVertex2f(1, 1);
glTexCoord2f(1, 0); glVertex2f(1, 0);
glEnd();
glDisable(GL_TEXTURE_2D);
MwOpenGLSwapBuffer(wOpengl);
if(r){
ma_event_signal(&event);
r = 0;
}
}
static void video_cb(plm_t* self, plm_frame_t* frame, void* user){
unsigned char* data = malloc(frame->width * frame->height * 3);
frame_t f;
(void)self;
(void)user;
if(v){
free(data);
return;
}else{
v = 1;
}
plm_frame_to_rgb(frame, data, frame->width * 3);
f.buffer = data;
f.width = frame->width;
f.height = frame->height;
f.count = 0;
ma_mutex_lock(&mutex);
arrput(frames, f);
ma_mutex_unlock(&mutex);
}
static void audio_cb(plm_t* self, plm_samples_t* samples, void* user){
buffer_t buf;
(void)self;
(void)user;
buf.size = sizeof(float) * samples->count * 2;
buf.seek = 0;
buf.buffer = malloc(sizeof(float) * samples->count * 2);
memcpy(buf.buffer, samples->interleaved, sizeof(float) * samples->count * 2);
ma_mutex_lock(&mutex);
arrput(buffers, buf);
ma_mutex_unlock(&mutex);
}
static void button_play(MwWidget handle, void* user, void* call){
(void)handle;
(void)user;
(void)call;
ma_mutex_lock(&mutex);
paused = 0;
ma_mutex_unlock(&mutex);
}
static void button_pause(MwWidget handle, void* user, void* call){
(void)handle;
(void)user;
(void)call;
ma_mutex_lock(&mutex);
paused = 1;
ma_mutex_unlock(&mutex);
}
int main(int argc, char** argv) {
MwSizeHints sh;
#ifdef _WIN32
DWORD thid;
#else
void* ret;
#endif
int scw = 640, sch = 480;
if(argc != 2) return 1;
wWindow = MwVaCreateWidget(MwWindowClass, "main", NULL, MwDEFAULT, MwDEFAULT, 5 + 640 + 5 + 64 + 5, 5 + 480 + 5,
plm = plm_create_with_filename(argv[1]);
if(plm == NULL) return 1;
wait = 1000.0 / plm_get_framerate(plm);
sh.min_width = sh.max_width = 5 + scw + 5 + 64 + 5;
sh.min_height = sh.max_height = 5 + sch + 5;
wWindow = MwVaCreateWidget(MwWindowClass, "main", NULL, MwDEFAULT, MwDEFAULT, sh.min_width, sh.min_height,
MwNtitle, "mpeg player",
MwNsizeHints, &sh,
MwNwaitMS, wait,
NULL);
wOpengl = MwCreateWidget(MwOpenGLClass, "opengl", wWindow, 5, 5, 640, 480);
bPlay = MwVaCreateWidget(MwButtonClass, "play", wWindow, 5 + 640 + 5, 5, 64, 24,
wOpengl = MwCreateWidget(MwOpenGLClass, "opengl", wWindow, 5, 5, scw, sch);
bPlay = MwVaCreateWidget(MwButtonClass, "play", wWindow, 5 + scw + 5, 5, 64, 24,
MwNtext, "Play",
NULL);
bPause = MwVaCreateWidget(MwButtonClass, "pause", wWindow, 5 + 640 + 5, 5 + 24 + 5, 64, 24,
bPause = MwVaCreateWidget(MwButtonClass, "pause", wWindow, 5 + scw + 5, 5 + 24 + 5, 64, 24,
MwNtext, "Pause",
NULL);
MwAddUserHandler(bPlay, MwNactivateHandler, button_play, NULL);
MwAddUserHandler(bPause, MwNactivateHandler, button_pause, NULL);
plm_set_loop(plm, 1);
plm_set_audio_enabled(plm, 1);
plm_set_audio_stream(plm, 0);
plm_set_video_decode_callback(plm, video_cb, NULL);
plm_set_audio_decode_callback(plm, audio_cb, NULL);
MwOpenGLMakeCurrent(wOpengl);
glGenTextures(1, &tex);
glBindTexture(GL_TEXTURE_2D, tex);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glBindTexture(GL_TEXTURE_2D, 0);
ma_event_init(&event);
ma_mutex_init(&mutex);
config = ma_device_config_init(ma_device_type_playback);
config.playback.format = ma_format_f32;
config.playback.channels = 2;
config.sampleRate = plm_get_samplerate(plm);
config.dataCallback = data_callback;
ma_device_init(NULL, &config, &device);
ma_device_start(&device);
#ifdef _WIN32
thread = CreateThread(NULL, 0, thread_routine, NULL, 0, &thid);
#else
pthread_create(&thread, NULL, thread_routine, NULL);
#endif
MwAddUserHandler(wWindow, MwNtickHandler, tick, NULL);
MwLoop(wWindow);
ma_mutex_lock(&mutex);
quit = 1;
ma_mutex_unlock(&mutex);
#ifdef _WIN32
WaitForSingleObject(thread, INFINITE);
CloseHandle(thread);
#else
pthread_join(thread, &ret);
#endif
plm_destroy(plm);
ma_device_uninit(&device);
ma_mutex_uninit(&mutex);
ma_event_uninit(&event);
}

311
examples/mpegplayer/mpegplayer.c Normal file
View File

@@ -0,0 +1,311 @@
/* $Id$ */
#include <Mw/Milsko.h>
#include <Mw/Widget/OpenGL.h>
#include "../../external/pl_mpeg.h"
#include "../../external/miniaudio.h"
#include "../../external/stb_ds.h"
#ifdef _WIN32
#include <windows.h>
#else
#include <pthread.h>
#include <unistd.h>
#endif
typedef struct buffer {
unsigned char* buffer;
int seek;
int size;
} buffer_t;
typedef struct frame {
unsigned char* buffer;
int width;
int height;
int count;
} frame_t;
MwWidget wWindow, wOpengl;
MwWidget bPlay, bPause;
plm_t* plm;
GLuint tex;
buffer_t* buffers = NULL;
frame_t* frames = NULL;
ma_mutex mutex;
ma_event event;
ma_device device;
ma_device_config config;
int paused = 0;
int quit = 0;
int wait = 16;
int v = 0, r = 1;
#ifdef _WIN32
HANDLE thread;
#else
pthread_t thread;
#endif
#ifdef _WIN32
static DWORD WINAPI thread_routine(void* arg){
#else
static void* thread_routine(void* arg){
#endif
(void)arg;
ma_event_wait(&event);
while(!plm_has_ended(plm) && !quit){
ma_mutex_lock(&mutex);
if(arrlen(frames) > 10 || paused){
ma_mutex_unlock(&mutex);
#ifdef _WIN32
Sleep(1);
#else
usleep(1000);
#endif
}else{
ma_mutex_unlock(&mutex);
v = 0;
plm_decode(plm, wait / 1000.0);
}
}
#ifdef _WIN32
return 0;
#else
return NULL;
#endif
}
static void data_callback(ma_device* device, void* out, const void* in, ma_uint32 frame){
int fsz = sizeof(float) * frame * 2;
int bsz = 0;
(void)device;
(void)in;
memset(out, 0, sizeof(float) * frame * 2);
ma_mutex_lock(&mutex);
while(fsz > 0 && arrlen(buffers) > 0){
int sz = 0;
if(fsz > (buffers[0].size - buffers[0].seek)){
sz = buffers[0].size - buffers[0].seek;
}else{
sz = fsz;
}
memcpy(bsz + (unsigned char*)out, buffers[0].buffer + buffers[0].seek, sz);
buffers[0].seek += sz;
fsz -= sz;
bsz += sz;
if(buffers[0].seek >= buffers[0].size){
free(buffers[0].buffer);
arrdel(buffers, 0);
}
}
ma_mutex_unlock(&mutex);
}
double a = 0;
static void tick(MwWidget handle, void* user, void* call){
(void)handle;
(void)user;
(void)call;
ma_mutex_lock(&mutex);
if(arrlen(frames) > 0){
double f = (1000.0 / wait) / plm_get_framerate(plm);
if(frames[0].count == 0){
glBindTexture(GL_TEXTURE_2D, tex);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, frames[0].width, frames[0].height, 0, GL_RGB, GL_UNSIGNED_BYTE, frames[0].buffer);
glBindTexture(GL_TEXTURE_2D, 0);
}
frames[0].count++;
if(f >= 1 && frames[0].count >= (int)f + (int)a){
a += f - (int)f;
if(a > 1) a--;
free(frames[0].buffer);
arrdel(frames, 0);
}else if(f < 1){
free(frames[0].buffer);
arrdel(frames, 0);
}
}
ma_mutex_unlock(&mutex);
glClear(GL_COLOR_BUFFER_BIT);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glOrtho(0, 1, 1, 0, -1, 1);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
glEnable(GL_TEXTURE_2D);
glBindTexture(GL_TEXTURE_2D, tex);
glBegin(GL_QUADS);
glTexCoord2f(0, 0); glVertex2f(0, 0);
glTexCoord2f(0, 1); glVertex2f(0, 1);
glTexCoord2f(1, 1); glVertex2f(1, 1);
glTexCoord2f(1, 0); glVertex2f(1, 0);
glEnd();
glDisable(GL_TEXTURE_2D);
MwOpenGLSwapBuffer(wOpengl);
if(r){
ma_event_signal(&event);
r = 0;
}
}
static void video_cb(plm_t* self, plm_frame_t* frame, void* user){
unsigned char* data = malloc(frame->width * frame->height * 3);
frame_t f;
(void)self;
(void)user;
if(v){
free(data);
return;
}else{
v = 1;
}
plm_frame_to_rgb(frame, data, frame->width * 3);
f.buffer = data;
f.width = frame->width;
f.height = frame->height;
f.count = 0;
ma_mutex_lock(&mutex);
arrput(frames, f);
ma_mutex_unlock(&mutex);
}
static void audio_cb(plm_t* self, plm_samples_t* samples, void* user){
buffer_t buf;
(void)self;
(void)user;
buf.size = sizeof(float) * samples->count * 2;
buf.seek = 0;
buf.buffer = malloc(sizeof(float) * samples->count * 2);
memcpy(buf.buffer, samples->interleaved, sizeof(float) * samples->count * 2);
ma_mutex_lock(&mutex);
arrput(buffers, buf);
ma_mutex_unlock(&mutex);
}
static void button_play(MwWidget handle, void* user, void* call){
(void)handle;
(void)user;
(void)call;
ma_mutex_lock(&mutex);
paused = 0;
ma_mutex_unlock(&mutex);
}
static void button_pause(MwWidget handle, void* user, void* call){
(void)handle;
(void)user;
(void)call;
ma_mutex_lock(&mutex);
paused = 1;
ma_mutex_unlock(&mutex);
}
int main(int argc, char** argv) {
MwSizeHints sh;
#ifdef _WIN32
DWORD thid;
#else
void* ret;
#endif
int scw = 640, sch = 480;
if(argc != 2) return 1;
plm = plm_create_with_filename(argv[1]);
if(plm == NULL) return 1;
wait = 1000.0 / plm_get_framerate(plm);
sh.min_width = sh.max_width = 5 + scw + 5 + 64 + 5;
sh.min_height = sh.max_height = 5 + sch + 5;
wWindow = MwVaCreateWidget(MwWindowClass, "main", NULL, MwDEFAULT, MwDEFAULT, sh.min_width, sh.min_height,
MwNtitle, "mpeg player",
MwNsizeHints, &sh,
MwNwaitMS, wait,
NULL);
wOpengl = MwCreateWidget(MwOpenGLClass, "opengl", wWindow, 5, 5, scw, sch);
bPlay = MwVaCreateWidget(MwButtonClass, "play", wWindow, 5 + scw + 5, 5, 64, 24,
MwNtext, "Play",
NULL);
bPause = MwVaCreateWidget(MwButtonClass, "pause", wWindow, 5 + scw + 5, 5 + 24 + 5, 64, 24,
MwNtext, "Pause",
NULL);
MwAddUserHandler(bPlay, MwNactivateHandler, button_play, NULL);
MwAddUserHandler(bPause, MwNactivateHandler, button_pause, NULL);
plm_set_loop(plm, 1);
plm_set_audio_enabled(plm, 1);
plm_set_audio_stream(plm, 0);
plm_set_video_decode_callback(plm, video_cb, NULL);
plm_set_audio_decode_callback(plm, audio_cb, NULL);
MwOpenGLMakeCurrent(wOpengl);
glGenTextures(1, &tex);
glBindTexture(GL_TEXTURE_2D, tex);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glBindTexture(GL_TEXTURE_2D, 0);
ma_event_init(&event);
ma_mutex_init(&mutex);
config = ma_device_config_init(ma_device_type_playback);
config.playback.format = ma_format_f32;
config.playback.channels = 2;
config.sampleRate = plm_get_samplerate(plm);
config.dataCallback = data_callback;
ma_device_init(NULL, &config, &device);
ma_device_start(&device);
#ifdef _WIN32
thread = CreateThread(NULL, 0, thread_routine, NULL, 0, &thid);
#else
pthread_create(&thread, NULL, thread_routine, NULL);
#endif
MwAddUserHandler(wWindow, MwNtickHandler, tick, NULL);
MwLoop(wWindow);
ma_mutex_lock(&mutex);
quit = 1;
ma_mutex_unlock(&mutex);
#ifdef _WIN32
WaitForSingleObject(thread, INFINITE);
CloseHandle(thread);
#else
pthread_join(thread, &ret);
#endif
plm_destroy(plm);
ma_device_uninit(&device);
ma_mutex_uninit(&mutex);
ma_event_uninit(&event);
}

1
include/Mw/StringDefs.h
View File

@@ -25,6 +25,7 @@
#define MwnhasBorder "IhasBorder"
#define MwNinverted "Iinverted"
#define MwNmodernLook "ImodernLook"
#define MwNwaitMS "IwaitMS"
#define MwNtitle "Stitle"
#define MwNtext "Stext"

7
src/backend/x11.c
View File

@@ -412,7 +412,12 @@ void MwLLNextEvent(MwLL handle) {
}
void MwLLSleep(int ms) {
usleep(ms * 1000);
struct timespec ts;
ts.tv_sec = ms / 1000;
ts.tv_nsec = (ms % 1000) * 1000 * 1000;
nanosleep(&ts, NULL);
}
void MwLLSetTitle(MwLL handle, const char* title) {

13
src/core.c
View File

@@ -289,8 +289,11 @@ int MwPending(MwWidget handle) {
void MwLoop(MwWidget handle) {
long tick = MwLLGetTick();
int i;
long wait = MwGetInteger(handle, MwNwaitMS);
if(wait == MwDEFAULT) wait = MwWaitMS;
while(!handle->close) {
int v = 0;
long t, t2;
while(MwPending(handle)) {
if((v = MwStep(handle)) != 0) break;
}
@@ -300,9 +303,13 @@ void MwLoop(MwWidget handle) {
MwDispatchUserHandler(handle->tick_list[i], MwNtickHandler, NULL);
}
tick = MwWaitMS - (MwLLGetTick() - tick);
if(tick > 0) MwLLSleep(tick);
tick = MwLLGetTick();
t = (tick + wait) - (t2 = MwLLGetTick());
if(t > 0){
MwLLSleep(t);
tick += wait;
}else{
tick = t2;
}
}
}