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player: move to mp3dec_ex

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This commit is contained in:
lieff
2020-02-16 20:39:15 +03:00
parent b004823d33
commit 2d69929215
5 changed files with 24 additions and 75 deletions
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.gitignore
+1
View File
@@ -1,4 +1,5 @@
fate-suite.ffmpeg.org
player/SDL
minimp3
minimp3_arm
*.gcda
minimp3_ex.h
+3 -4
View File
@@ -455,7 +455,7 @@ int mp3dec_iterate_cb(mp3dec_io_t *io, uint8_t *buf, size_t buf_size, MP3D_ITERA
if (!io || !buf || (size_t)-1 == buf_size || buf_size < MINIMP3_BUF_SIZE)
return MP3D_E_PARAM;
size_t filled = io->read(buf, MINIMP3_ID3_DETECT_SIZE, io->read_data), consumed = 0;
uint64_t readed = 0, frames = 0;
uint64_t readed = 0;
mp3dec_frame_info_t frame_info;
int eof = 0;
memset(&frame_info, 0, sizeof(frame_info));
@@ -500,7 +500,6 @@ int mp3dec_iterate_cb(mp3dec_io_t *io, uint8_t *buf, size_t buf_size, MP3D_ITERA
frame_info.frame_bytes = frame_size;
readed += i;
frames++;
if (callback)
{
if ((ret = callback(user_data, hdr, frame_size, free_format_bytes, filled - consumed, readed, &frame_info)))
@@ -765,8 +764,8 @@ size_t mp3dec_ex_read(mp3dec_ex_t *dec, mp3d_sample_t *buf, size_t samples)
{ /* count decoded samples to properly cut padding */
if (dec->cur_sample + to_copy >= dec->detected_samples)
to_copy = dec->detected_samples - dec->cur_sample;
dec->cur_sample += to_copy;
}
dec->cur_sample += to_copy;
memcpy(buf, dec->buffer + dec->buffer_consumed, to_copy*sizeof(mp3d_sample_t));
buf += to_copy;
dec->buffer_consumed += to_copy;
@@ -820,8 +819,8 @@ size_t mp3dec_ex_read(mp3dec_ex_t *dec, mp3d_sample_t *buf, size_t samples)
{ /* ^ handle padding */
if (dec->cur_sample + to_copy >= dec->detected_samples)
to_copy = dec->detected_samples - dec->cur_sample;
dec->cur_sample += to_copy;
}
dec->cur_sample += to_copy;
memcpy(buf, dec->buffer + dec->buffer_consumed, to_copy*sizeof(mp3d_sample_t));
buf += to_copy;
dec->buffer_consumed += to_copy;
player/decode.c
+7 -62
View File
@@ -8,16 +8,15 @@
#include <fcntl.h>
#include <stdlib.h>
#include <math.h>
#include "decode.h"
#define MINIMP3_IMPLEMENTATION
#include "../minimp3.h"
#include "decode.h"
#define MIN(a, b) ((a) < (b) ? (a) : (b))
static void get_spectrum(decoder *dec, int numch)
{
int i, ch, band;
const mp3dec_t *d = &dec->mp3d;
const mp3dec_t *d = &dec->mp3d.mp3d;
// Average spectrum power for 32 frequency band
for (ch = 0; ch < numch; ch++)
{
@@ -53,38 +52,8 @@ static void get_spectrum(decoder *dec, int numch)
void decode_samples(decoder *dec, uint8_t *buf, int bytes)
{
if (dec->pcm_bytes - dec->pcm_copied)
{
int to_copy = MIN(dec->pcm_bytes - dec->pcm_copied, bytes);
memcpy(buf, (uint8_t*)dec->pcm + dec->pcm_copied, to_copy);
buf += to_copy;
bytes -= to_copy;
dec->pcm_copied += to_copy;
}
if (!bytes)
return;
do
{
int samples = mp3dec_decode_frame(&dec->mp3d, dec->mp3_buf + dec->pos, dec->mp3_size - dec->pos, dec->pcm, &dec->info);
dec->pos += dec->info.frame_bytes;
if (samples)
{
get_spectrum(dec, dec->info.channels);
dec->pcm_bytes = samples*2*dec->info.channels;
dec->pcm_copied = MIN(dec->pcm_bytes, bytes);
memcpy(buf, dec->pcm, dec->pcm_copied);
buf += dec->pcm_copied;
bytes -= dec->pcm_copied;
if (!dec->mp3_rate)
dec->mp3_rate = dec->info.hz;
if (!dec->mp3_channels)
dec->mp3_channels = dec->info.channels;
if (dec->mp3_rate != dec->info.hz || dec->mp3_channels != dec->info.channels)
break;
}
} while (dec->info.frame_bytes && bytes);
if (bytes)
memset(buf, 0, bytes);
memset(buf, 0, bytes);
mp3dec_ex_read(&dec->mp3d, (mp3d_sample_t*)buf, bytes/sizeof(mp3d_sample_t));
}
int open_dec(decoder *dec, const char *file_name)
@@ -94,38 +63,14 @@ int open_dec(decoder *dec, const char *file_name)
memset(dec, 0, sizeof(*dec));
struct stat st;
retry_open:
dec->file = open(file_name, O_RDONLY);
if (dec->file < 0 && (errno == EAGAIN || errno == EINTR))
goto retry_open;
if (dec->file < 0 || fstat(dec->file, &st) < 0)
{
close_dec(dec);
mp3dec_ex_open(&dec->mp3d, file_name, MP3D_SEEK_TO_SAMPLE);
if (!dec->mp3d.samples)
return 0;
}
dec->mp3_size = st.st_size;
retry_mmap:
dec->mp3_buf = mmap(NULL, st.st_size, PROT_READ, MAP_PRIVATE | MAP_POPULATE, dec->file, 0);
if (MAP_FAILED == dec->mp3_buf && (errno == EAGAIN || errno == EINTR))
goto retry_mmap;
if (MAP_FAILED == dec->mp3_buf)
{
close_dec(dec);
return 0;
}
mp3dec_init(&dec->mp3d);
return 1;
}
int close_dec(decoder *dec)
{
if (dec->mp3_buf)
free(dec->mp3_buf);
if (dec->mp3_buf && MAP_FAILED != dec->mp3_buf)
munmap(dec->mp3_buf, dec->mp3_size);
if (dec->file)
close(dec->file);
mp3dec_ex_close(&dec->mp3d);
memset(dec, 0, sizeof(*dec));
}
player/decode.h
+2 -8
View File
@@ -1,6 +1,6 @@
#pragma once
#include <stdint.h>
#include "../minimp3.h"
#include "../minimp3_ex.h"
#ifdef __cplusplus
extern "C" {
#endif
@@ -10,14 +10,9 @@ typedef int (*PARSE_INFO_CB)(void *user, char *file_name, int rate, int mp3_chan
typedef struct decoder
{
mp3dec_t mp3d;
mp3dec_frame_info_t info;
uint8_t *mp3_buf;
size_t mp3_size, pos;
int file, pcm_bytes, pcm_copied, mp3_rate, mp3_channels;
mp3dec_ex_t mp3d;
float mp3_duration;
float spectrum[32][2]; // for visualization
short pcm[MINIMP3_MAX_SAMPLES_PER_FRAME];
} decoder;
extern decoder _dec;
@@ -25,7 +20,6 @@ extern decoder _dec;
int open_dec(decoder *dec, const char *file_name);
int close_dec(decoder *dec);
void decode_samples(decoder *dec, uint8_t *buf, int bytes);
void start_parser(PARSE_GET_FILE_CB fcb, void *fcb_user, PARSE_INFO_CB icb, void *icb_user);
#ifdef __cplusplus
}
player/player.cpp
+11 -1
View File
@@ -98,7 +98,7 @@ static int init()
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 2);
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 0);
#endif
_mainWindow = SDL_CreateWindow("Lion Audio Player", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, 400, 600, SDL_WINDOW_RESIZABLE|SDL_WINDOW_OPENGL|SDL_WINDOW_SHOWN|SDL_WINDOW_ALLOW_HIGHDPI);
_mainWindow = SDL_CreateWindow("minimp3", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, 400, 600, SDL_WINDOW_RESIZABLE|SDL_WINDOW_OPENGL|SDL_WINDOW_SHOWN|SDL_WINDOW_ALLOW_HIGHDPI);
if (!_mainWindow)
{
printf("error: create window failed: %s\n", SDL_GetError());
@@ -197,6 +197,16 @@ static void tick()
}
}
nk_button_pop_behavior(ctx);
static size_t progress = 0;
uint64_t cur_sample = _dec.mp3d.cur_sample;
progress = cur_sample;
nk_progress(ctx, &progress, _dec.mp3d.samples, NK_MODIFIABLE);
if (progress != cur_sample)
{
SDL_PauseAudio(1);
mp3dec_ex_seek(&_dec.mp3d, progress);
SDL_PauseAudio(0);
}
if (nk_tree_push(ctx, NK_TREE_TAB, "Playlist", NK_MAXIMIZED))
{