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added SDL fallback for vanilla-pi, fixed decoding issue seemingly

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This commit is contained in:
itsmattkc 2024-11-15 19:59:29 -08:00
parent b17645c71e
commit 7788aebd8b
1 changed files with 35 additions and 19 deletions
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54
rpi/main.c
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@ -48,7 +48,7 @@ enum AVPixelFormat get_format(AVCodecContext* ctx, const enum AVPixelFormat *pix
return AV_PIX_FMT_NONE;
}
int decode(const void *data, size_t size)
int decode(void *data, size_t size)
{
int err;
@ -56,13 +56,13 @@ int decode(const void *data, size_t size)
err = av_packet_from_data(video_packet, (uint8_t *) data, size);
if (err < 0) {
fprintf(stderr, "Failed to initialize AVPacket from data: %s (%i)\n", av_err2str(err), err);
av_free(data);
return 0;
}
int64_t ticks = SDL_GetTicks64();
// Send packet to decoder
err = avcodec_send_packet(video_codec_ctx, video_packet);
av_packet_unref(video_packet);
if (err < 0) {
fprintf(stderr, "Failed to send packet to decoder: %s (%i)\n", av_err2str(err), err);
return 0;
@ -104,26 +104,29 @@ int decode(const void *data, size_t size)
static SDL_mutex *decode_loop_mutex;
static SDL_cond *decode_loop_cond;
static int decode_loop_running = 0;
static int decode_pkt_ready = 0;
static uint8_t decode_data[65536];
static uint8_t *decode_data = NULL;
static size_t decode_size = 0;
int decode_loop(void *)
{
uint8_t our_data[65536];
size_t our_data_size = 0;
SDL_LockMutex(decode_loop_mutex);
while (decode_loop_running) {
while (!decode_pkt_ready) {
while (decode_loop_running && !decode_data) {
SDL_CondWait(decode_loop_cond, decode_loop_mutex);
}
memcpy(our_data, decode_data, decode_size);
our_data_size = decode_size;
if (!decode_loop_running) {
break;
}
// Copy into av_malloc buffer
uint8_t *our_data = decode_data;
size_t our_size = decode_size;
decode_data = NULL;
decode_size = 0;
SDL_UnlockMutex(decode_loop_mutex);
decode(our_data, decode_size);
decode(our_data, our_size);
SDL_LockMutex(decode_loop_mutex);
}
@ -153,14 +156,24 @@ int run_backend(void *data)
SDL_Thread *decode_thread = SDL_CreateThread(decode_loop, "vanilla-decode", NULL);
while (vanilla_wait_event(&event)) {
printf("front end got event\n");
if (event.type == VANILLA_EVENT_VIDEO) {
SDL_LockMutex(decode_loop_mutex);
memcpy(decode_data, event.data, event.size);
if (decode_data) {
av_free(decode_data);
decode_data = NULL;
}
decode_size = event.size;
decode_pkt_ready = 1;
decode_data = av_malloc(event.size);
memcpy(decode_data, event.data, event.size);
SDL_CondBroadcast(decode_loop_cond);
SDL_UnlockMutex(decode_loop_mutex);
// decode(event.data, event.size);
/*uint8_t *data = av_malloc(event.size);
memcpy(data, event.data, event.size);
decode(data, event.size);*/
} else if (event.type == VANILLA_EVENT_AUDIO) {
if (audio) {
if (SDL_QueueAudio(audio, event.data, event.size) < 0) {
@ -411,16 +424,21 @@ int main(int argc, const char **argv)
#else
SDL_Window *window = SDL_CreateWindow("vanilla-pi", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, SCREEN_WIDTH, SCREEN_HEIGHT, SDL_WINDOW_RESIZABLE);
SDL_Renderer *renderer = SDL_CreateRenderer(window, -1, SDL_RENDERER_ACCELERATED | SDL_RENDERER_PRESENTVSYNC);
SDL_Texture *texture = SDL_CreateTexture(renderer, SDL_PIXELFORMAT_YV12, SDL_TEXTUREACCESS_STREAMING, SCREEN_WIDTH, SCREEN_HEIGHT);
SDL_Texture *texture = SDL_CreateTexture(renderer, SDL_PIXELFORMAT_IYUV, SDL_TEXTUREACCESS_STREAMING, SCREEN_WIDTH, SCREEN_HEIGHT);
AVFrame *frame = av_frame_alloc();
#endif
SDL_GameController *controller = find_valid_controller();
Uint32 ticks = SDL_GetTicks();
while (running) {
SDL_Event event;
#ifdef RASPBERRY_PI
if (SDL_WaitEvent(&event)) {
#else
while (SDL_PollEvent(&event)) {
#endif
switch (event.type) {
case SDL_QUIT:
// Exit loop
@ -484,13 +502,11 @@ int main(int argc, const char **argv)
#ifndef RASPBERRY_PI
pthread_mutex_lock(&decoding_mutex);
if (present_frame->data[0]) {
av_frame_unref(frame);
av_frame_move_ref(frame, present_frame);
}
pthread_mutex_unlock(&decoding_mutex);
if (frame->data[0]) {
printf("frame->format: %i\n", frame->format);
SDL_UpdateYUVTexture(texture, NULL,
frame->data[0], frame->linesize[0],
frame->data[1], frame->linesize[1],