qtffplay_includes.h

/*
 * QTFFPlay : Simple Media Player based on the ffmpeg libraries
 * For QT4+
 * Based on ffplay, Copyright (c) 2003 Fabrice Bellard
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 */
 
#ifndef QTFFPLAYINCLUDES_H
#define QTFFPLAYINCLUDES_H

#define HAVE_AV_CONFIG_H
#include "avformat.h"

#include "cmdutils.h"

#include <SDL.h>
#include <SDL_thread.h>

#ifdef CONFIG_WIN32
#undef main /* We don't want SDL to override our main() */
#endif

#ifdef CONFIG_OS2
#define INCL_DOS
 #include <os2.h>
 #include <stdio.h>

 void MorphToPM()
 {
   PPIB pib;
   PTIB tib;

   DosGetInfoBlocks(&tib, &pib);

   // Change flag from VIO to PM:
   if (pib->pib_ultype==2) pib->pib_ultype = 3;
 }
#endif

#if defined(__linux__)
#define HAVE_X11
#endif

#ifdef HAVE_X11
#include <X11/Xlib.h>
#endif

//#define DEBUG_SYNC

#define MAX_VIDEOQ_SIZE (5 * 256 * 1024)
#define MAX_AUDIOQ_SIZE (5 * 16 * 1024)
#define MAX_SUBTITLEQ_SIZE (5 * 16 * 1024)

/* SDL audio buffer size, in samples. Should be small to have precise
   A/V sync as SDL does not have hardware buffer fullness info. */
#define SDL_AUDIO_BUFFER_SIZE 1024

/* no AV sync correction is done if below the AV sync threshold */
#define AV_SYNC_THRESHOLD 0.01
/* no AV correction is done if too big error */
#define AV_NOSYNC_THRESHOLD 10.0

/* maximum audio speed change to get correct sync */
#define SAMPLE_CORRECTION_PERCENT_MAX 10

/* we use about AUDIO_DIFF_AVG_NB A-V differences to make the average */
#define AUDIO_DIFF_AVG_NB   20

/* NOTE: the size must be big enough to compensate the hardware audio buffersize size */
#define SAMPLE_ARRAY_SIZE (2*65536)

typedef struct PacketQueue {
    AVPacketList *first_pkt, *last_pkt;
    int nb_packets;
    int size;
    int abort_request;
    SDL_mutex *mutex;
    SDL_cond *cond;
} PacketQueue;

#define VIDEO_PICTURE_QUEUE_SIZE 1
#define SUBPICTURE_QUEUE_SIZE 4

typedef struct VideoPicture {
    double pts;                                  
    SDL_Overlay *bmp;
    int width, height; /* source height & width */
    int allocated;
} VideoPicture;

typedef struct SubPicture {
    double pts; /* presentation time stamp for this picture */
    AVSubtitle sub;
} SubPicture;

enum {
    AV_SYNC_AUDIO_MASTER, /* default choice */
    AV_SYNC_VIDEO_MASTER,
    AV_SYNC_EXTERNAL_CLOCK, /* synchronize to an external clock */
};

typedef struct VideoState {
    SDL_Thread *parse_tid;
    SDL_Thread *video_tid;
    AVInputFormat *iformat;
    int no_background;
    int abort_request;
    int paused;
    int last_paused;
    int seek_req;
    int seek_flags;
    int64_t seek_pos;
    AVFormatContext *ic;
    int dtg_active_format;

    int audio_stream;

    int av_sync_type;
    double external_clock; /* external clock base */
    int64_t external_clock_time;

    double audio_clock;
    double audio_diff_cum; /* used for AV difference average computation */
    double audio_diff_avg_coef;
    double audio_diff_threshold;
    int audio_diff_avg_count;
    AVStream *audio_st;
    PacketQueue audioq;
    int audio_hw_buf_size;
    /* samples output by the codec. we reserve more space for avsync
       compensation */
    uint8_t audio_buf[(AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 2];
    unsigned int audio_buf_size; /* in bytes */
    int audio_buf_index; /* in bytes */
    AVPacket audio_pkt;
    uint8_t *audio_pkt_data;
    int audio_pkt_size;

    int show_audio; /* if true, display audio samples */
    int16_t sample_array[SAMPLE_ARRAY_SIZE];
    int sample_array_index;
    int last_i_start;

    SDL_Thread *subtitle_tid;
    int subtitle_stream;
    int subtitle_stream_changed;
    AVStream *subtitle_st;
    PacketQueue subtitleq;
    SubPicture subpq[SUBPICTURE_QUEUE_SIZE];
    int subpq_size, subpq_rindex, subpq_windex;
    SDL_mutex *subpq_mutex;
    SDL_cond *subpq_cond;

    double frame_timer;
    double frame_last_pts;
    double frame_last_delay;
    double video_clock;                          
    int video_stream;
    AVStream *video_st;
    PacketQueue videoq;
    double video_current_pts;                    
    int64_t video_current_pts_time;              
    VideoPicture pictq[VIDEO_PICTURE_QUEUE_SIZE];
    int pictq_size, pictq_rindex, pictq_windex;
    SDL_mutex *pictq_mutex;
    SDL_cond *pictq_cond;

    SDL_mutex *video_decoder_mutex;
    SDL_mutex *audio_decoder_mutex;
    SDL_mutex *subtitle_decoder_mutex;

    //    QETimer *video_timer;
    char filename[1024];
    int width, height, xleft, ytop;
} VideoState;

/* options specified by the user */
static AVInputFormat *file_iformat;
static AVImageFormat *image_format;
//static const char *input_filename;
static int fs_screen_width;
static int fs_screen_height;
static int screen_width = 640;
static int screen_height = 480;
static int audio_disable;
static int video_disable;
static int display_disable;
static int show_status;
static int av_sync_type = AV_SYNC_AUDIO_MASTER;
static int64_t start_time = AV_NOPTS_VALUE;
static int debug = 0;
static int debug_mv = 0;
static int step = 0;
static int thread_count = 1;
static int workaround_bugs = 1;
static int fast = 0;
static int genpts = 0;
static int lowres = 0;
static int idct = FF_IDCT_AUTO;
static enum AVDiscard skip_frame= AVDISCARD_DEFAULT;
static enum AVDiscard skip_idct= AVDISCARD_DEFAULT;
static enum AVDiscard skip_loop_filter= AVDISCARD_DEFAULT;
static int error_resilience = FF_ER_CAREFUL;
static int error_concealment = 3;

/* current context */
static int is_full_screen;
static VideoState *cur_stream;
static int64_t audio_callback_time;

#define FF_ALLOC_EVENT   (SDL_USEREVENT)
#define FF_REFRESH_EVENT (SDL_USEREVENT + 1)
#define FF_QUIT_EVENT    (SDL_USEREVENT + 2)


#define SCALEBITS 10
#define ONE_HALF  (1 << (SCALEBITS - 1))
#define FIX(x)    ((int) ((x) * (1<<SCALEBITS) + 0.5))

#define RGB_TO_Y_CCIR(r, g, b) \
((FIX(0.29900*219.0/255.0) * (r) + FIX(0.58700*219.0/255.0) * (g) + \
  FIX(0.11400*219.0/255.0) * (b) + (ONE_HALF + (16 << SCALEBITS))) >> SCALEBITS)

#define RGB_TO_U_CCIR(r1, g1, b1, shift)\
(((- FIX(0.16874*224.0/255.0) * r1 - FIX(0.33126*224.0/255.0) * g1 +         \
     FIX(0.50000*224.0/255.0) * b1 + (ONE_HALF << shift) - 1) >> (SCALEBITS + shift)) + 128)

#define RGB_TO_V_CCIR(r1, g1, b1, shift)\
(((FIX(0.50000*224.0/255.0) * r1 - FIX(0.41869*224.0/255.0) * g1 -           \
   FIX(0.08131*224.0/255.0) * b1 + (ONE_HALF << shift) - 1) >> (SCALEBITS + shift)) + 128)

#define ALPHA_BLEND(a, oldp, newp, s)\
((((oldp << s) * (255 - (a))) + (newp * (a))) / (255 << s))

#define RGBA_IN(r, g, b, a, s)\
{\
    unsigned int v = ((const uint32_t *)(s))[0];\
    a = (v >> 24) & 0xff;\
    r = (v >> 16) & 0xff;\
    g = (v >> 8) & 0xff;\
    b = v & 0xff;\
}

#define YUVA_IN(y, u, v, a, s, pal)\
{\
    unsigned int val = ((const uint32_t *)(pal))[*(const uint8_t*)s];\
    a = (val >> 24) & 0xff;\
    y = (val >> 16) & 0xff;\
    u = (val >> 8) & 0xff;\
    v = val & 0xff;\
}

#define YUVA_OUT(d, y, u, v, a)\
{\
    ((uint32_t *)(d))[0] = (a << 24) | (y << 16) | (u << 8) | v;\
}


#define BPP 1

/* since we have only one decoding thread, we can use a global
   variable instead of a thread local variable */
static VideoState *global_video_state;

#endif

---