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Anonymous committed c1a0426

removed old files.

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Files changed (2)

lib/_ffplaybackend.py

-import subprocess, os, time
-import threading
-
-player="ffplay"
-
-
-class Movie(object):
-    """pygame._ffmovbackend.Movie:
-        plays a video file via subprocess and a pre-packaged ffplay executable.
-    """
-    def __init__(self, filename, surface):
-        self.filename=filename
-        self._surface = surface
-        self.process = None
-        self.loops=0
-        self.playing = False
-        self.paused  = False
-        self._backend = "FFPLAY"
-    def getSurface(self):
-        #special stuff here
-        return self._surface
-    
-    def setSurface(self, value):
-        #special stuff here, like redirecting movie output here
-        self._surface = value
-    def delSurface(self):
-        del self._surface
-    surface=property(fget=getSurface, fset=setSurface, fdel=delSurface)
-    
-    def play(self, loops=0):
-        self.loops=loops
-        if loops<=-1: self.eternity=1
-        else:         self.eternity=0
-        self.loops -= 1
-        if not self.process:
-            self._play()
-        #otherwise stop playback, and start again with the new loops value.
-        else:
-            self.stop()
-            self._play()
-    def _play(self):
-        self.process=subprocess.Popen([player, self.filename], stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
-        self.t=MovieWatcher(self, self.process.pid)
-        self.t.start()
-        self.playing = not self.playing
-        
-    def pause(self):
-        if self.process:
-            #send value to pause playback
-            self.paused = not self.paused
-            pass
-    
-    def stop(self):
-        if self.process:
-            pass
-            
-    def __repr__(self):
-        if self.process:
-            return "(%s: )" % self.filename #add on timestamp
-        else:
-            return "(%s)" % self.filename
-    
-        
-class MovieWatcher(threading.Thread):
-    def __init__(self, movie, pid):
-        threading.Thread.__init__(self)
-        self.movie=movie
-        self.pid=pid
-    def run():        
-        sts=os.waitpid(self.pid, 0)
-        #video finished playing, so we run it again
-        if(movie.loops>-1 or self.eternity):
-            movie._play()
-            movie.loops -= 1
-
-            

src/ffplay.c

-/*
- * FFplay : Simple Media Player based on the ffmpeg libraries
- * Copyright (c) 2003 Fabrice Bellard
- *
- * This file is part of FFmpeg.
- *
- * FFmpeg 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 2.1 of the License, or (at your option) any later version.
- *
- * FFmpeg 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 FFmpeg; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#include <math.h>
-#include <limits.h>
-#include <libavutil/avstring.h>
-#include <libavformat/avformat.h>
-#include <libavformat/rtsp.h>
-#include <libavdevice/avdevice.h>
-#include <libswscale/swscale.h>
-#include <libavcodec/audioconvert.h>
-
-#include <SDL.h>
-#include <SDL_thread.h>
-
-//needed imports for fcntl and select calls
-#include <fcntl.h>
-#include <stdio.h>
-#include <sys/time.h>
-#include <sys/types.h>
-#include <unistd.h>
-
-#ifdef __MINGW32__
-#undef main /* We don't want SDL to override our main() */
-#endif
-
-#undef exit
-
-const char program_name[] = "FFplay";
-const int program_birth_year = 2003;
-
-//#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)
-
-static int sws_flags = SWS_BICUBIC;
-
-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;                                  ///<presentation time stamp for this picture
-    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 */
-    DECLARE_ALIGNED(16,uint8_t,audio_buf1[(AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 2]);
-    DECLARE_ALIGNED(16,uint8_t,audio_buf2[(AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 2]);
-    uint8_t *audio_buf;
-    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;
-    enum SampleFormat audio_src_fmt;
-    AVAudioConvert *reformat_ctx;
-
-    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;                          ///<pts of last decoded frame / predicted pts of next decoded frame
-    int video_stream;
-    AVStream *video_st;
-    PacketQueue videoq;
-    double video_current_pts;                    ///<current displayed pts (different from video_clock if frame fifos are used)
-    int64_t video_current_pts_time;              ///<time (av_gettime) at which we updated video_current_pts - used to have running video pts
-    VideoPicture pictq[VIDEO_PICTURE_QUEUE_SIZE];
-    int pictq_size, pictq_rindex, pictq_windex;
-    SDL_mutex *pictq_mutex;
-    SDL_cond *pictq_cond;
-
-    //    QETimer *video_timer;
-    char filename[1024];
-    int width, height, xleft, ytop;
-} VideoState;
-
-static void show_help(void);
-static int audio_write_get_buf_size(VideoState *is);
-
-/* options specified by the user */
-static AVInputFormat *file_iformat;
-static const char *input_filename;
-static int fs_screen_width;
-static int fs_screen_height;
-static int screen_width = 0;
-static int screen_height = 0;
-static int frame_width = 0;
-static int frame_height = 0;
-static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
-static int audio_disable;
-static int video_disable;
-static int wanted_audio_stream= 0;
-static int wanted_video_stream= 0;
-static int wanted_subtitle_stream= -1;
-static int seek_by_bytes;
-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_recognition = FF_ER_CAREFUL;
-static int error_concealment = 3;
-static int decoder_reorder_pts= 0;
-
-/* current context */
-static int is_full_screen;
-static VideoState *cur_stream;
-static int64_t audio_callback_time;
-
-static AVPacket flush_pkt;
-
-#define FF_ALLOC_EVENT   (SDL_USEREVENT)
-#define FF_REFRESH_EVENT (SDL_USEREVENT + 1)
-#define FF_QUIT_EVENT    (SDL_USEREVENT + 2)
-
-static SDL_Surface *screen;
-
-/* packet queue handling */
-static void packet_queue_init(PacketQueue *q)
-{
-    memset(q, 0, sizeof(PacketQueue));
-    q->mutex = SDL_CreateMutex();
-    q->cond = SDL_CreateCond();
-}
-
-static void packet_queue_flush(PacketQueue *q)
-{
-    AVPacketList *pkt, *pkt1;
-
-    SDL_LockMutex(q->mutex);
-    for(pkt = q->first_pkt; pkt != NULL; pkt = pkt1) {
-        pkt1 = pkt->next;
-        av_free_packet(&pkt->pkt);
-        av_freep(&pkt);
-    }
-    q->last_pkt = NULL;
-    q->first_pkt = NULL;
-    q->nb_packets = 0;
-    q->size = 0;
-    SDL_UnlockMutex(q->mutex);
-}
-
-static void packet_queue_end(PacketQueue *q)
-{
-    packet_queue_flush(q);
-    SDL_DestroyMutex(q->mutex);
-    SDL_DestroyCond(q->cond);
-}
-
-static int packet_queue_put(PacketQueue *q, AVPacket *pkt)
-{
-    AVPacketList *pkt1;
-
-    /* duplicate the packet */
-    if (pkt!=&flush_pkt && av_dup_packet(pkt) < 0)
-        return -1;
-
-    pkt1 = av_malloc(sizeof(AVPacketList));
-    if (!pkt1)
-        return -1;
-    pkt1->pkt = *pkt;
-    pkt1->next = NULL;
-
-
-    SDL_LockMutex(q->mutex);
-
-    if (!q->last_pkt)
-
-        q->first_pkt = pkt1;
-    else
-        q->last_pkt->next = pkt1;
-    q->last_pkt = pkt1;
-    q->nb_packets++;
-    q->size += pkt1->pkt.size + sizeof(*pkt1);
-    /* XXX: should duplicate packet data in DV case */
-    SDL_CondSignal(q->cond);
-
-    SDL_UnlockMutex(q->mutex);
-    return 0;
-}
-
-static void packet_queue_abort(PacketQueue *q)
-{
-    SDL_LockMutex(q->mutex);
-
-    q->abort_request = 1;
-
-    SDL_CondSignal(q->cond);
-
-    SDL_UnlockMutex(q->mutex);
-}
-
-/* return < 0 if aborted, 0 if no packet and > 0 if packet.  */
-static int packet_queue_get(PacketQueue *q, AVPacket *pkt, int block)
-{
-    AVPacketList *pkt1;
-    int ret;
-
-    SDL_LockMutex(q->mutex);
-
-    for(;;) {
-        if (q->abort_request) {
-            ret = -1;
-            break;
-        }
-
-        pkt1 = q->first_pkt;
-        if (pkt1) {
-            q->first_pkt = pkt1->next;
-            if (!q->first_pkt)
-                q->last_pkt = NULL;
-            q->nb_packets--;
-            q->size -= pkt1->pkt.size + sizeof(*pkt1);
-            *pkt = pkt1->pkt;
-            av_free(pkt1);
-            ret = 1;
-            break;
-        } else if (!block) {
-            ret = 0;
-            break;
-        } else {
-            SDL_CondWait(q->cond, q->mutex);
-        }
-    }
-    SDL_UnlockMutex(q->mutex);
-    return ret;
-}
-
-static inline void fill_rectangle(SDL_Surface *screen,
-                                  int x, int y, int w, int h, int color)
-{
-    SDL_Rect rect;
-    rect.x = x;
-    rect.y = y;
-    rect.w = w;
-    rect.h = h;
-    SDL_FillRect(screen, &rect, color);
-}
-
-#if 0
-/* draw only the border of a rectangle */
-void fill_border(VideoState *s, int x, int y, int w, int h, int color)
-{
-    int w1, w2, h1, h2;
-
-    /* fill the background */
-    w1 = x;
-    if (w1 < 0)
-        w1 = 0;
-    w2 = s->width - (x + w);
-    if (w2 < 0)
-        w2 = 0;
-    h1 = y;
-    if (h1 < 0)
-        h1 = 0;
-    h2 = s->height - (y + h);
-    if (h2 < 0)
-        h2 = 0;
-    fill_rectangle(screen,
-                   s->xleft, s->ytop,
-                   w1, s->height,
-                   color);
-    fill_rectangle(screen,
-                   s->xleft + s->width - w2, s->ytop,
-                   w2, s->height,
-                   color);
-    fill_rectangle(screen,
-                   s->xleft + w1, s->ytop,
-                   s->width - w1 - w2, h1,
-                   color);
-    fill_rectangle(screen,
-                   s->xleft + w1, s->ytop + s->height - h2,
-                   s->width - w1 - w2, h2,
-                   color);
-}
-#endif
-
-
-
-#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
-
-static void blend_subrect(AVPicture *dst, const AVSubtitleRect *rect, int imgw, int imgh)
-{
-    int wrap, wrap3, width2, skip2;
-    int y, u, v, a, u1, v1, a1, w, h;
-    uint8_t *lum, *cb, *cr;
-    const uint8_t *p;
-    const uint32_t *pal;
-    int dstx, dsty, dstw, dsth;
-
-    dstw = av_clip(rect->w, 0, imgw);
-    dsth = av_clip(rect->h, 0, imgh);
-    dstx = av_clip(rect->x, 0, imgw - dstw);
-    dsty = av_clip(rect->y, 0, imgh - dsth);
-    lum = dst->data[0] + dsty * dst->linesize[0];
-    cb = dst->data[1] + (dsty >> 1) * dst->linesize[1];
-    cr = dst->data[2] + (dsty >> 1) * dst->linesize[2];
-
-    width2 = ((dstw + 1) >> 1) + (dstx & ~dstw & 1);
-    skip2 = dstx >> 1;
-    wrap = dst->linesize[0];
-    wrap3 = rect->pict.linesize[0];
-    p = rect->pict.data[0];
-    pal = (const uint32_t *)rect->pict.data[1];  /* Now in YCrCb! */
-
-    if (dsty & 1) {
-        lum += dstx;
-        cb += skip2;
-        cr += skip2;
-
-        if (dstx & 1) {
-            YUVA_IN(y, u, v, a, p, pal);
-            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
-            cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
-            cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
-            cb++;
-            cr++;
-            lum++;
-            p += BPP;
-        }
-        for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
-            YUVA_IN(y, u, v, a, p, pal);
-            u1 = u;
-            v1 = v;
-            a1 = a;
-            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
-
-            YUVA_IN(y, u, v, a, p + BPP, pal);
-            u1 += u;
-            v1 += v;
-            a1 += a;
-            lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
-            cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
-            cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
-            cb++;
-            cr++;
-            p += 2 * BPP;
-            lum += 2;
-        }
-        if (w) {
-            YUVA_IN(y, u, v, a, p, pal);
-            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
-            cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
-            cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
-            p++;
-            lum++;
-        }
-        p += wrap3 - dstw * BPP;
-        lum += wrap - dstw - dstx;
-        cb += dst->linesize[1] - width2 - skip2;
-        cr += dst->linesize[2] - width2 - skip2;
-    }
-    for(h = dsth - (dsty & 1); h >= 2; h -= 2) {
-        lum += dstx;
-        cb += skip2;
-        cr += skip2;
-
-        if (dstx & 1) {
-            YUVA_IN(y, u, v, a, p, pal);
-            u1 = u;
-            v1 = v;
-            a1 = a;
-            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
-            p += wrap3;
-            lum += wrap;
-            YUVA_IN(y, u, v, a, p, pal);
-            u1 += u;
-            v1 += v;
-            a1 += a;
-            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
-            cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
-            cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
-            cb++;
-            cr++;
-            p += -wrap3 + BPP;
-            lum += -wrap + 1;
-        }
-        for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
-            YUVA_IN(y, u, v, a, p, pal);
-            u1 = u;
-            v1 = v;
-            a1 = a;
-            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
-
-            YUVA_IN(y, u, v, a, p + BPP, pal);
-            u1 += u;
-            v1 += v;
-            a1 += a;
-            lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
-            p += wrap3;
-            lum += wrap;
-
-            YUVA_IN(y, u, v, a, p, pal);
-            u1 += u;
-            v1 += v;
-            a1 += a;
-            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
-
-            YUVA_IN(y, u, v, a, p + BPP, pal);
-            u1 += u;
-            v1 += v;
-            a1 += a;
-            lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
-
-            cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 2);
-            cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 2);
-
-            cb++;
-            cr++;
-            p += -wrap3 + 2 * BPP;
-            lum += -wrap + 2;
-        }
-        if (w) {
-            YUVA_IN(y, u, v, a, p, pal);
-            u1 = u;
-            v1 = v;
-            a1 = a;
-            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
-            p += wrap3;
-            lum += wrap;
-            YUVA_IN(y, u, v, a, p, pal);
-            u1 += u;
-            v1 += v;
-            a1 += a;
-            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
-            cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
-            cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
-            cb++;
-            cr++;
-            p += -wrap3 + BPP;
-            lum += -wrap + 1;
-        }
-        p += wrap3 + (wrap3 - dstw * BPP);
-        lum += wrap + (wrap - dstw - dstx);
-        cb += dst->linesize[1] - width2 - skip2;
-        cr += dst->linesize[2] - width2 - skip2;
-    }
-    /* handle odd height */
-    if (h) {
-        lum += dstx;
-        cb += skip2;
-        cr += skip2;
-
-        if (dstx & 1) {
-            YUVA_IN(y, u, v, a, p, pal);
-            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
-            cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
-            cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
-            cb++;
-            cr++;
-            lum++;
-            p += BPP;
-        }
-        for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
-            YUVA_IN(y, u, v, a, p, pal);
-            u1 = u;
-            v1 = v;
-            a1 = a;
-            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
-
-            YUVA_IN(y, u, v, a, p + BPP, pal);
-            u1 += u;
-            v1 += v;
-            a1 += a;
-            lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
-            cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u, 1);
-            cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v, 1);
-            cb++;
-            cr++;
-            p += 2 * BPP;
-            lum += 2;
-        }
-        if (w) {
-            YUVA_IN(y, u, v, a, p, pal);
-            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
-            cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
-            cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
-        }
-    }
-}
-
-static void free_subpicture(SubPicture *sp)
-{
-    int i;
-
-    for (i = 0; i < sp->sub.num_rects; i++)
-    {
-        av_freep(&sp->sub.rects[i]->pict.data[0]);
-        av_freep(&sp->sub.rects[i]->pict.data[1]);
-        av_freep(&sp->sub.rects[i]);
-    }
-
-    av_free(sp->sub.rects);
-
-    memset(&sp->sub, 0, sizeof(AVSubtitle));
-}
-
-static void video_image_display(VideoState *is)
-{
-    VideoPicture *vp;
-    SubPicture *sp;
-    AVPicture pict;
-    float aspect_ratio;
-    int width, height, x, y;
-    SDL_Rect rect;
-    int i;
-
-    vp = &is->pictq[is->pictq_rindex];
-    if (vp->bmp) {
-        /* XXX: use variable in the frame */
-        if (is->video_st->sample_aspect_ratio.num)
-            aspect_ratio = av_q2d(is->video_st->sample_aspect_ratio);
-        else if (is->video_st->codec->sample_aspect_ratio.num)
-            aspect_ratio = av_q2d(is->video_st->codec->sample_aspect_ratio);
-        else
-            aspect_ratio = 0;
-        if (aspect_ratio <= 0.0)
-            aspect_ratio = 1.0;
-        aspect_ratio *= (float)is->video_st->codec->width / is->video_st->codec->height;
-        /* if an active format is indicated, then it overrides the
-           mpeg format */
-#if 0
-        if (is->video_st->codec->dtg_active_format != is->dtg_active_format) {
-            is->dtg_active_format = is->video_st->codec->dtg_active_format;
-            printf("dtg_active_format=%d\n", is->dtg_active_format);
-        }
-#endif
-#if 0
-        switch(is->video_st->codec->dtg_active_format) {
-        case FF_DTG_AFD_SAME:
-        default:
-            /* nothing to do */
-            break;
-        case FF_DTG_AFD_4_3:
-            aspect_ratio = 4.0 / 3.0;
-            break;
-        case FF_DTG_AFD_16_9:
-            aspect_ratio = 16.0 / 9.0;
-            break;
-        case FF_DTG_AFD_14_9:
-            aspect_ratio = 14.0 / 9.0;
-            break;
-        case FF_DTG_AFD_4_3_SP_14_9:
-            aspect_ratio = 14.0 / 9.0;
-            break;
-        case FF_DTG_AFD_16_9_SP_14_9:
-            aspect_ratio = 14.0 / 9.0;
-            break;
-        case FF_DTG_AFD_SP_4_3:
-            aspect_ratio = 4.0 / 3.0;
-            break;
-        }
-#endif
-
-        if (is->subtitle_st)
-        {
-            if (is->subpq_size > 0)
-            {
-                sp = &is->subpq[is->subpq_rindex];
-
-                if (vp->pts >= sp->pts + ((float) sp->sub.start_display_time / 1000))
-                {
-                    SDL_LockYUVOverlay (vp->bmp);
-
-                    pict.data[0] = vp->bmp->pixels[0];
-                    pict.data[1] = vp->bmp->pixels[2];
-                    pict.data[2] = vp->bmp->pixels[1];
-
-                    pict.linesize[0] = vp->bmp->pitches[0];
-                    pict.linesize[1] = vp->bmp->pitches[2];
-                    pict.linesize[2] = vp->bmp->pitches[1];
-
-                    for (i = 0; i < sp->sub.num_rects; i++)
-                        blend_subrect(&pict, sp->sub.rects[i],
-                                      vp->bmp->w, vp->bmp->h);
-
-                    SDL_UnlockYUVOverlay (vp->bmp);
-                }
-            }
-        }
-
-
-        /* XXX: we suppose the screen has a 1.0 pixel ratio */
-        height = is->height;
-        width = ((int)rint(height * aspect_ratio)) & ~1;
-        if (width > is->width) {
-            width = is->width;
-            height = ((int)rint(width / aspect_ratio)) & ~1;
-        }
-        x = (is->width - width) / 2;
-        y = (is->height - height) / 2;
-        if (!is->no_background) {
-            /* fill the background */
-            //            fill_border(is, x, y, width, height, QERGB(0x00, 0x00, 0x00));
-        } else {
-            is->no_background = 0;
-        }
-        rect.x = is->xleft + x;
-        rect.y = is->ytop  + y;
-        rect.w = width;
-        rect.h = height;
-        SDL_DisplayYUVOverlay(vp->bmp, &rect);
-    } else {
-#if 0
-        fill_rectangle(screen,
-                       is->xleft, is->ytop, is->width, is->height,
-                       QERGB(0x00, 0x00, 0x00));
-#endif
-    }
-}
-
-static inline int compute_mod(int a, int b)
-{
-    a = a % b;
-    if (a >= 0)
-        return a;
-    else
-        return a + b;
-}
-
-static void video_audio_display(VideoState *s)
-{
-    int i, i_start, x, y1, y, ys, delay, n, nb_display_channels;
-    int ch, channels, h, h2, bgcolor, fgcolor;
-    int16_t time_diff;
-
-    /* compute display index : center on currently output samples */
-    channels = s->audio_st->codec->channels;
-    nb_display_channels = channels;
-    if (!s->paused) {
-        n = 2 * channels;
-        delay = audio_write_get_buf_size(s);
-        delay /= n;
-
-        /* to be more precise, we take into account the time spent since
-           the last buffer computation */
-        if (audio_callback_time) {
-            time_diff = av_gettime() - audio_callback_time;
-            delay += (time_diff * s->audio_st->codec->sample_rate) / 1000000;
-        }
-
-        delay -= s->width / 2;
-        if (delay < s->width)
-            delay = s->width;
-
-        i_start= x = compute_mod(s->sample_array_index - delay * channels, SAMPLE_ARRAY_SIZE);
-
-        h= INT_MIN;
-        for(i=0; i<1000; i+=channels){
-            int idx= (SAMPLE_ARRAY_SIZE + x - i) % SAMPLE_ARRAY_SIZE;
-            int a= s->sample_array[idx];
-            int b= s->sample_array[(idx + 4*channels)%SAMPLE_ARRAY_SIZE];
-            int c= s->sample_array[(idx + 5*channels)%SAMPLE_ARRAY_SIZE];
-            int d= s->sample_array[(idx + 9*channels)%SAMPLE_ARRAY_SIZE];
-            int score= a-d;
-            if(h<score && (b^c)<0){
-                h= score;
-                i_start= idx;
-            }
-        }
-
-        s->last_i_start = i_start;
-    } else {
-        i_start = s->last_i_start;
-    }
-
-    bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
-    fill_rectangle(screen,
-                   s->xleft, s->ytop, s->width, s->height,
-                   bgcolor);
-
-    fgcolor = SDL_MapRGB(screen->format, 0xff, 0xff, 0xff);
-
-    /* total height for one channel */
-    h = s->height / nb_display_channels;
-    /* graph height / 2 */
-    h2 = (h * 9) / 20;
-    for(ch = 0;ch < nb_display_channels; ch++) {
-        i = i_start + ch;
-        y1 = s->ytop + ch * h + (h / 2); /* position of center line */
-        for(x = 0; x < s->width; x++) {
-            y = (s->sample_array[i] * h2) >> 15;
-            if (y < 0) {
-                y = -y;
-                ys = y1 - y;
-            } else {
-                ys = y1;
-            }
-            fill_rectangle(screen,
-                           s->xleft + x, ys, 1, y,
-                           fgcolor);
-            i += channels;
-            if (i >= SAMPLE_ARRAY_SIZE)
-                i -= SAMPLE_ARRAY_SIZE;
-        }
-    }
-
-    fgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0xff);
-
-    for(ch = 1;ch < nb_display_channels; ch++) {
-        y = s->ytop + ch * h;
-        fill_rectangle(screen,
-                       s->xleft, y, s->width, 1,
-                       fgcolor);
-    }
-    SDL_UpdateRect(screen, s->xleft, s->ytop, s->width, s->height);
-}
-
-static int video_open(VideoState *is){
-    int flags = SDL_HWSURFACE|SDL_ASYNCBLIT|SDL_HWACCEL;
-    int w,h;
-
-    if(is_full_screen) flags |= SDL_FULLSCREEN;
-    else               flags |= SDL_RESIZABLE;
-
-    if (is_full_screen && fs_screen_width) {
-        w = fs_screen_width;
-        h = fs_screen_height;
-    } else if(!is_full_screen && screen_width){
-        w = screen_width;
-        h = screen_height;
-    }else if (is->video_st && is->video_st->codec->width){
-        w = is->video_st->codec->width;
-        h = is->video_st->codec->height;
-    } else {
-        w = 640;
-        h = 480;
-    }
-#ifndef __APPLE__
-    screen = SDL_SetVideoMode(w, h, 0, flags);
-#else
-    /* setting bits_per_pixel = 0 or 32 causes blank video on OS X */
-    screen = SDL_SetVideoMode(w, h, 24, flags);
-#endif
-    if (!screen) {
-        fprintf(stderr, "SDL: could not set video mode - exiting\n");
-        return -1;
-    }
-    SDL_WM_SetCaption("FFplay", "FFplay");
-
-    is->width = screen->w;
-    is->height = screen->h;
-
-    return 0;
-}
-
-/* display the current picture, if any */
-static void video_display(VideoState *is)
-{
-    if(!screen)
-        video_open(cur_stream);
-    if (is->audio_st && is->show_audio)
-        video_audio_display(is);
-    else if (is->video_st)
-        video_image_display(is);
-}
-
-static Uint32 sdl_refresh_timer_cb(Uint32 interval, void *opaque)
-{
-    SDL_Event event;
-    event.type = FF_REFRESH_EVENT;
-    event.user.data1 = opaque;
-    SDL_PushEvent(&event);
-    return 0; /* 0 means stop timer */
-}
-
-/* schedule a video refresh in 'delay' ms */
-static void schedule_refresh(VideoState *is, int delay)
-{
-    if(!delay) delay=1; //SDL seems to be buggy when the delay is 0
-    SDL_AddTimer(delay, sdl_refresh_timer_cb, is);
-}
-
-/* get the current audio clock value */
-static double get_audio_clock(VideoState *is)
-{
-    double pts;
-    int hw_buf_size, bytes_per_sec;
-    pts = is->audio_clock;
-    hw_buf_size = audio_write_get_buf_size(is);
-    bytes_per_sec = 0;
-    if (is->audio_st) {
-        bytes_per_sec = is->audio_st->codec->sample_rate *
-            2 * is->audio_st->codec->channels;
-    }
-    if (bytes_per_sec)
-        pts -= (double)hw_buf_size / bytes_per_sec;
-    return pts;
-}
-
-/* get the current video clock value */
-static double get_video_clock(VideoState *is)
-{
-    double delta;
-    if (is->paused) {
-        delta = 0;
-    } else {
-        delta = (av_gettime() - is->video_current_pts_time) / 1000000.0;
-    }
-    return is->video_current_pts + delta;
-}
-
-/* get the current external clock value */
-static double get_external_clock(VideoState *is)
-{
-    int64_t ti;
-    ti = av_gettime();
-    return is->external_clock + ((ti - is->external_clock_time) * 1e-6);
-}
-
-/* get the current master clock value */
-static double get_master_clock(VideoState *is)
-{
-    double val;
-
-    if (is->av_sync_type == AV_SYNC_VIDEO_MASTER) {
-        if (is->video_st)
-            val = get_video_clock(is);
-        else
-            val = get_audio_clock(is);
-    } else if (is->av_sync_type == AV_SYNC_AUDIO_MASTER) {
-        if (is->audio_st)
-            val = get_audio_clock(is);
-        else
-            val = get_video_clock(is);
-    } else {
-        val = get_external_clock(is);
-    }
-    return val;
-}
-
-/* seek in the stream */
-static void stream_seek(VideoState *is, int64_t pos, int rel)
-{
-    if (!is->seek_req) {
-        is->seek_pos = pos;
-        is->seek_flags = rel < 0 ? AVSEEK_FLAG_BACKWARD : 0;
-        if (seek_by_bytes)
-            is->seek_flags |= AVSEEK_FLAG_BYTE;
-        is->seek_req = 1;
-    }
-}
-
-/* pause or resume the video */
-static void stream_pause(VideoState *is)
-{
-    is->paused = !is->paused;
-    if (!is->paused) {
-        is->video_current_pts = get_video_clock(is);
-        is->frame_timer += (av_gettime() - is->video_current_pts_time) / 1000000.0;
-    }
-}
-
-static double compute_frame_delay(double frame_current_pts, VideoState *is)
-{
-    double actual_delay, delay, sync_threshold, ref_clock, diff;
-
-    /* compute nominal delay */
-    delay = frame_current_pts - is->frame_last_pts;
-    if (delay <= 0 || delay >= 10.0) {
-        /* if incorrect delay, use previous one */
-        delay = is->frame_last_delay;
-    } else {
-        is->frame_last_delay = delay;
-    }
-    is->frame_last_pts = frame_current_pts;
-
-    /* update delay to follow master synchronisation source */
-    if (((is->av_sync_type == AV_SYNC_AUDIO_MASTER && is->audio_st) ||
-         is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
-        /* if video is slave, we try to correct big delays by
-           duplicating or deleting a frame */
-        ref_clock = get_master_clock(is);
-        diff = frame_current_pts - ref_clock;
-
-        /* skip or repeat frame. We take into account the
-           delay to compute the threshold. I still don't know
-           if it is the best guess */
-        sync_threshold = FFMAX(AV_SYNC_THRESHOLD, delay);
-        if (fabs(diff) < AV_NOSYNC_THRESHOLD) {
-            if (diff <= -sync_threshold)
-                delay = 0;
-            else if (diff >= sync_threshold)
-                delay = 2 * delay;
-        }
-    }
-
-    is->frame_timer += delay;
-    /* compute the REAL delay (we need to do that to avoid
-       long term errors */
-    actual_delay = is->frame_timer - (av_gettime() / 1000000.0);
-    if (actual_delay < 0.010) {
-        /* XXX: should skip picture */
-        actual_delay = 0.010;
-    }
-
-#if defined(DEBUG_SYNC)
-    printf("video: delay=%0.3f actual_delay=%0.3f pts=%0.3f A-V=%f\n",
-            delay, actual_delay, frame_current_pts, -diff);
-#endif
-
-    return actual_delay;
-}
-
-/* called to display each frame */
-static void video_refresh_timer(void *opaque)
-{
-    VideoState *is = opaque;
-    VideoPicture *vp;
-
-    SubPicture *sp, *sp2;
-
-    if (is->video_st) {
-        if (is->pictq_size == 0) {
-            /* if no picture, need to wait */
-            schedule_refresh(is, 1);
-        } else {
-            /* dequeue the picture */
-            vp = &is->pictq[is->pictq_rindex];
-
-            /* update current video pts */
-            is->video_current_pts = vp->pts;
-            is->video_current_pts_time = av_gettime();
-
-            /* launch timer for next picture */
-            schedule_refresh(is, (int)(compute_frame_delay(vp->pts, is) * 1000 + 0.5));
-
-            if(is->subtitle_st) {
-                if (is->subtitle_stream_changed) {
-                    SDL_LockMutex(is->subpq_mutex);
-
-                    while (is->subpq_size) {
-                        free_subpicture(&is->subpq[is->subpq_rindex]);
-
-                        /* update queue size and signal for next picture */
-                        if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
-                            is->subpq_rindex = 0;
-
-                        is->subpq_size--;
-                    }
-                    is->subtitle_stream_changed = 0;
-
-                    SDL_CondSignal(is->subpq_cond);
-                    SDL_UnlockMutex(is->subpq_mutex);
-                } else {
-                    if (is->subpq_size > 0) {
-                        sp = &is->subpq[is->subpq_rindex];
-
-                        if (is->subpq_size > 1)
-                            sp2 = &is->subpq[(is->subpq_rindex + 1) % SUBPICTURE_QUEUE_SIZE];
-                        else
-                            sp2 = NULL;
-
-                        if ((is->video_current_pts > (sp->pts + ((float) sp->sub.end_display_time / 1000)))
-                                || (sp2 && is->video_current_pts > (sp2->pts + ((float) sp2->sub.start_display_time / 1000))))
-                        {
-                            free_subpicture(sp);
-
-                            /* update queue size and signal for next picture */
-                            if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
-                                is->subpq_rindex = 0;
-
-                            SDL_LockMutex(is->subpq_mutex);
-                            is->subpq_size--;
-                            SDL_CondSignal(is->subpq_cond);
-                            SDL_UnlockMutex(is->subpq_mutex);
-                        }
-                    }
-                }
-            }
-
-            /* display picture */
-            video_display(is);
-
-            /* update queue size and signal for next picture */
-            if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
-                is->pictq_rindex = 0;
-
-            SDL_LockMutex(is->pictq_mutex);
-            is->pictq_size--;
-            SDL_CondSignal(is->pictq_cond);
-            SDL_UnlockMutex(is->pictq_mutex);
-        }
-    } else if (is->audio_st) {
-        /* draw the next audio frame */
-
-        schedule_refresh(is, 40);
-
-        /* if only audio stream, then display the audio bars (better
-           than nothing, just to test the implementation */
-
-        /* display picture */
-        video_display(is);
-    } else {
-        schedule_refresh(is, 100);
-    }
-    if (show_status) {
-        static int64_t last_time;
-        int64_t cur_time;
-        int aqsize, vqsize, sqsize;
-        double av_diff;
-
-        cur_time = av_gettime();
-        if (!last_time || (cur_time - last_time) >= 500 * 1000) {
-            aqsize = 0;
-            vqsize = 0;
-            sqsize = 0;
-            if (is->audio_st)
-                aqsize = is->audioq.size;
-            if (is->video_st)
-                vqsize = is->videoq.size;
-            if (is->subtitle_st)
-                sqsize = is->subtitleq.size;
-            av_diff = 0;
-            if (is->audio_st && is->video_st)
-                av_diff = get_audio_clock(is) - get_video_clock(is);
-            printf("%7.2f A-V:%7.3f aq=%5dKB vq=%5dKB sq=%5dB    \r",
-                   get_master_clock(is), av_diff, aqsize / 1024, vqsize / 1024, sqsize);
-            fflush(stdout);
-            last_time = cur_time;
-        }
-    }
-}
-
-/* allocate a picture (needs to do that in main thread to avoid
-   potential locking problems */
-static void alloc_picture(void *opaque)
-{
-    VideoState *is = opaque;
-    VideoPicture *vp;
-
-    vp = &is->pictq[is->pictq_windex];
-
-    if (vp->bmp)
-        SDL_FreeYUVOverlay(vp->bmp);
-
-#if 0
-    /* XXX: use generic function */
-    /* XXX: disable overlay if no hardware acceleration or if RGB format */
-    switch(is->video_st->codec->pix_fmt) {
-    case PIX_FMT_YUV420P:
-    case PIX_FMT_YUV422P:
-    case PIX_FMT_YUV444P:
-    case PIX_FMT_YUYV422:
-    case PIX_FMT_YUV410P:
-    case PIX_FMT_YUV411P:
-        is_yuv = 1;
-        break;
-    default:
-        is_yuv = 0;
-        break;
-    }
-#endif
-    vp->bmp = SDL_CreateYUVOverlay(is->video_st->codec->width,
-                                   is->video_st->codec->height,
-                                   SDL_YV12_OVERLAY,
-                                   screen);
-    vp->width = is->video_st->codec->width;
-    vp->height = is->video_st->codec->height;
-
-    SDL_LockMutex(is->pictq_mutex);
-    vp->allocated = 1;
-    SDL_CondSignal(is->pictq_cond);
-    SDL_UnlockMutex(is->pictq_mutex);
-}
-
-/**
- *
- * @param pts the dts of the pkt / pts of the frame and guessed if not known
- */
-static int queue_picture(VideoState *is, AVFrame *src_frame, double pts)
-{
-    VideoPicture *vp;
-    int dst_pix_fmt;
-    AVPicture pict;
-    static struct SwsContext *img_convert_ctx;
-
-    /* wait until we have space to put a new picture */
-    SDL_LockMutex(is->pictq_mutex);
-    while (is->pictq_size >= VIDEO_PICTURE_QUEUE_SIZE &&
-           !is->videoq.abort_request) {
-        SDL_CondWait(is->pictq_cond, is->pictq_mutex);
-    }
-    SDL_UnlockMutex(is->pictq_mutex);
-
-    if (is->videoq.abort_request)
-        return -1;
-
-    vp = &is->pictq[is->pictq_windex];
-
-    /* alloc or resize hardware picture buffer */
-    if (!vp->bmp ||
-        vp->width != is->video_st->codec->width ||
-        vp->height != is->video_st->codec->height) {
-        SDL_Event event;
-
-        vp->allocated = 0;
-
-        /* the allocation must be done in the main thread to avoid
-           locking problems */
-        event.type = FF_ALLOC_EVENT;
-        event.user.data1 = is;
-        SDL_PushEvent(&event);
-
-        /* wait until the picture is allocated */
-        SDL_LockMutex(is->pictq_mutex);
-        while (!vp->allocated && !is->videoq.abort_request) {
-            SDL_CondWait(is->pictq_cond, is->pictq_mutex);
-        }
-        SDL_UnlockMutex(is->pictq_mutex);
-
-        if (is->videoq.abort_request)
-            return -1;
-    }
-
-    /* if the frame is not skipped, then display it */
-    if (vp->bmp) {
-        /* get a pointer on the bitmap */
-        SDL_LockYUVOverlay (vp->bmp);
-
-        dst_pix_fmt = PIX_FMT_YUV420P;
-        pict.data[0] = vp->bmp->pixels[0];
-        pict.data[1] = vp->bmp->pixels[2];
-        pict.data[2] = vp->bmp->pixels[1];
-
-        pict.linesize[0] = vp->bmp->pitches[0];
-        pict.linesize[1] = vp->bmp->pitches[2];
-        pict.linesize[2] = vp->bmp->pitches[1];
-        sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
-        img_convert_ctx = sws_getCachedContext(img_convert_ctx,
-            is->video_st->codec->width, is->video_st->codec->height,
-            is->video_st->codec->pix_fmt,
-            is->video_st->codec->width, is->video_st->codec->height,
-            dst_pix_fmt, sws_flags, NULL, NULL, NULL);
-        if (img_convert_ctx == NULL) {
-            fprintf(stderr, "Cannot initialize the conversion context\n");
-            exit(1);
-        }
-        sws_scale(img_convert_ctx, src_frame->data, src_frame->linesize,
-                  0, is->video_st->codec->height, pict.data, pict.linesize);
-        /* update the bitmap content */
-        SDL_UnlockYUVOverlay(vp->bmp);
-
-        vp->pts = pts;
-
-        /* now we can update the picture count */
-        if (++is->pictq_windex == VIDEO_PICTURE_QUEUE_SIZE)
-            is->pictq_windex = 0;
-        SDL_LockMutex(is->pictq_mutex);
-        is->pictq_size++;
-        SDL_UnlockMutex(is->pictq_mutex);
-    }
-    return 0;
-}
-
-/**
- * compute the exact PTS for the picture if it is omitted in the stream
- * @param pts1 the dts of the pkt / pts of the frame
- */
-static int output_picture2(VideoState *is, AVFrame *src_frame, double pts1)
-{
-    double frame_delay, pts;
-
-    pts = pts1;
-
-    if (pts != 0) {
-        /* update video clock with pts, if present */
-        is->video_clock = pts;
-    } else {
-        pts = is->video_clock;
-    }
-    /* update video clock for next frame */
-    frame_delay = av_q2d(is->video_st->codec->time_base);
-    /* for MPEG2, the frame can be repeated, so we update the
-       clock accordingly */
-    frame_delay += src_frame->repeat_pict * (frame_delay * 0.5);
-    is->video_clock += frame_delay;
-
-#if defined(DEBUG_SYNC) && 0
-    {
-        int ftype;
-        if (src_frame->pict_type == FF_B_TYPE)
-            ftype = 'B';
-        else if (src_frame->pict_type == FF_I_TYPE)
-            ftype = 'I';
-        else
-            ftype = 'P';
-        printf("frame_type=%c clock=%0.3f pts=%0.3f\n",
-               ftype, pts, pts1);
-    }
-#endif
-    return queue_picture(is, src_frame, pts);
-}
-
-static int video_thread(void *arg)
-{
-    VideoState *is = arg;
-    AVPacket pkt1, *pkt = &pkt1;
-    int len1, got_picture;
-    AVFrame *frame= avcodec_alloc_frame();
-    double pts;
-
-    for(;;) {
-        while (is->paused && !is->videoq.abort_request) {
-            SDL_Delay(10);
-        }
-        if (packet_queue_get(&is->videoq, pkt, 1) < 0)
-            break;
-
-        if(pkt->data == flush_pkt.data){
-            avcodec_flush_buffers(is->video_st->codec);
-            continue;
-        }
-
-        /* NOTE: ipts is the PTS of the _first_ picture beginning in
-           this packet, if any */
-        is->video_st->codec->reordered_opaque= pkt->pts;
-        len1 = avcodec_decode_video(is->video_st->codec,
-                                    frame, &got_picture,
-                                    pkt->data, pkt->size);
-
-        if(   (decoder_reorder_pts || pkt->dts == AV_NOPTS_VALUE)
-           && frame->reordered_opaque != AV_NOPTS_VALUE)
-            pts= frame->reordered_opaque;
-        else if(pkt->dts != AV_NOPTS_VALUE)
-            pts= pkt->dts;
-        else
-            pts= 0;
-        pts *= av_q2d(is->video_st->time_base);
-
-//            if (len1 < 0)
-//                break;
-        if (got_picture) {
-            if (output_picture2(is, frame, pts) < 0)
-                goto the_end;
-        }
-        av_free_packet(pkt);
-        if (step)
-            if (cur_stream)
-                stream_pause(cur_stream);
-    }
- the_end:
-    av_free(frame);
-    return 0;
-}
-
-static int subtitle_thread(void *arg)
-{
-    VideoState *is = arg;
-    SubPicture *sp;
-    AVPacket pkt1, *pkt = &pkt1;
-    int len1, got_subtitle;
-    double pts;
-    int i, j;
-    int r, g, b, y, u, v, a;
-
-    for(;;) {
-        while (is->paused && !is->subtitleq.abort_request) {
-            SDL_Delay(10);
-        }
-        if (packet_queue_get(&is->subtitleq, pkt, 1) < 0)
-            break;
-
-        if(pkt->data == flush_pkt.data){
-            avcodec_flush_buffers(is->subtitle_st->codec);
-            continue;
-        }
-        SDL_LockMutex(is->subpq_mutex);
-        while (is->subpq_size >= SUBPICTURE_QUEUE_SIZE &&
-               !is->subtitleq.abort_request) {
-            SDL_CondWait(is->subpq_cond, is->subpq_mutex);
-        }
-        SDL_UnlockMutex(is->subpq_mutex);
-
-        if (is->subtitleq.abort_request)
-            goto the_end;
-
-        sp = &is->subpq[is->subpq_windex];
-
-       /* NOTE: ipts is the PTS of the _first_ picture beginning in
-           this packet, if any */
-        pts = 0;
-        if (pkt->pts != AV_NOPTS_VALUE)
-            pts = av_q2d(is->subtitle_st->time_base)*pkt->pts;
-
-        len1 = avcodec_decode_subtitle(is->subtitle_st->codec,
-                                    &sp->sub, &got_subtitle,
-                                    pkt->data, pkt->size);
-//            if (len1 < 0)
-//                break;
-        if (got_subtitle && sp->sub.format == 0) {
-            sp->pts = pts;
-
-            for (i = 0; i < sp->sub.num_rects; i++)
-            {
-                for (j = 0; j < sp->sub.rects[i]->nb_colors; j++)
-                {
-                    RGBA_IN(r, g, b, a, (uint32_t*)sp->sub.rects[i]->pict.data[1] + j);
-                    y = RGB_TO_Y_CCIR(r, g, b);
-                    u = RGB_TO_U_CCIR(r, g, b, 0);
-                    v = RGB_TO_V_CCIR(r, g, b, 0);
-                    YUVA_OUT((uint32_t*)sp->sub.rects[i]->pict.data[1] + j, y, u, v, a);
-                }
-            }
-
-            /* now we can update the picture count */
-            if (++is->subpq_windex == SUBPICTURE_QUEUE_SIZE)
-                is->subpq_windex = 0;
-            SDL_LockMutex(is->subpq_mutex);
-            is->subpq_size++;
-            SDL_UnlockMutex(is->subpq_mutex);
-        }
-        av_free_packet(pkt);
-//        if (step)
-//            if (cur_stream)
-//                stream_pause(cur_stream);
-    }
- the_end:
-    return 0;
-}
-
-/* copy samples for viewing in editor window */
-static void update_sample_display(VideoState *is, short *samples, int samples_size)
-{
-    int size, len, channels;
-
-    channels = is->audio_st->codec->channels;
-
-    size = samples_size / sizeof(short);
-    while (size > 0) {
-        len = SAMPLE_ARRAY_SIZE - is->sample_array_index;
-        if (len > size)
-            len = size;
-        memcpy(is->sample_array + is->sample_array_index, samples, len * sizeof(short));
-        samples += len;
-        is->sample_array_index += len;
-        if (is->sample_array_index >= SAMPLE_ARRAY_SIZE)
-            is->sample_array_index = 0;
-        size -= len;
-    }
-}
-
-/* return the new audio buffer size (samples can be added or deleted
-   to get better sync if video or external master clock) */
-static int synchronize_audio(VideoState *is, short *samples,
-                             int samples_size1, double pts)
-{
-    int n, samples_size;
-    double ref_clock;
-
-    n = 2 * is->audio_st->codec->channels;
-    samples_size = samples_size1;
-
-    /* if not master, then we try to remove or add samples to correct the clock */
-    if (((is->av_sync_type == AV_SYNC_VIDEO_MASTER && is->video_st) ||
-         is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
-        double diff, avg_diff;
-        int wanted_size, min_size, max_size, nb_samples;
-
-        ref_clock = get_master_clock(is);
-        diff = get_audio_clock(is) - ref_clock;
-
-        if (diff < AV_NOSYNC_THRESHOLD) {
-            is->audio_diff_cum = diff + is->audio_diff_avg_coef * is->audio_diff_cum;
-            if (is->audio_diff_avg_count < AUDIO_DIFF_AVG_NB) {
-                /* not enough measures to have a correct estimate */
-                is->audio_diff_avg_count++;
-            } else {
-                /* estimate the A-V difference */
-                avg_diff = is->audio_diff_cum * (1.0 - is->audio_diff_avg_coef);
-
-                if (fabs(avg_diff) >= is->audio_diff_threshold) {
-                    wanted_size = samples_size + ((int)(diff * is->audio_st->codec->sample_rate) * n);
-                    nb_samples = samples_size / n;
-
-                    min_size = ((nb_samples * (100 - SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
-                    max_size = ((nb_samples * (100 + SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
-                    if (wanted_size < min_size)
-                        wanted_size = min_size;
-                    else if (wanted_size > max_size)
-                        wanted_size = max_size;
-
-                    /* add or remove samples to correction the synchro */
-                    if (wanted_size < samples_size) {
-                        /* remove samples */
-                        samples_size = wanted_size;
-                    } else if (wanted_size > samples_size) {
-                        uint8_t *samples_end, *q;
-                        int nb;
-
-                        /* add samples */
-                        nb = (samples_size - wanted_size);
-                        samples_end = (uint8_t *)samples + samples_size - n;
-                        q = samples_end + n;
-                        while (nb > 0) {
-                            memcpy(q, samples_end, n);
-                            q += n;
-                            nb -= n;
-                        }
-                        samples_size = wanted_size;
-                    }
-                }
-#if 0
-                printf("diff=%f adiff=%f sample_diff=%d apts=%0.3f vpts=%0.3f %f\n",
-                       diff, avg_diff, samples_size - samples_size1,
-                       is->audio_clock, is->video_clock, is->audio_diff_threshold);
-#endif
-            }
-        } else {
-            /* too big difference : may be initial PTS errors, so
-               reset A-V filter */
-            is->audio_diff_avg_count = 0;
-            is->audio_diff_cum = 0;
-        }
-    }
-
-    return samples_size;
-}
-
-/* decode one audio frame and returns its uncompressed size */
-static int audio_decode_frame(VideoState *is, double *pts_ptr)
-{
-    AVPacket *pkt = &is->audio_pkt;
-    AVCodecContext *dec= is->audio_st->codec;
-    int n, len1, data_size;
-    double pts;
-
-    for(;;) {
-        /* NOTE: the audio packet can contain several frames */
-        while (is->audio_pkt_size > 0) {
-            data_size = sizeof(is->audio_buf1);
-            len1 = avcodec_decode_audio2(dec,
-                                        (int16_t *)is->audio_buf1, &data_size,
-                                        is->audio_pkt_data, is->audio_pkt_size);
-            if (len1 < 0) {
-                /* if error, we skip the frame */
-                is->audio_pkt_size = 0;
-                break;
-            }
-
-            is->audio_pkt_data += len1;
-            is->audio_pkt_size -= len1;
-            if (data_size <= 0)
-                continue;
-
-            if (dec->sample_fmt != is->audio_src_fmt) {
-                if (is->reformat_ctx)
-                    av_audio_convert_free(is->reformat_ctx);
-                is->reformat_ctx= av_audio_convert_alloc(SAMPLE_FMT_S16, 1,
-                                                         dec->sample_fmt, 1, NULL, 0);
-                if (!is->reformat_ctx) {
-                    fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
-                        avcodec_get_sample_fmt_name(dec->sample_fmt),
-                        avcodec_get_sample_fmt_name(SAMPLE_FMT_S16));
-                        break;
-                }
-                is->audio_src_fmt= dec->sample_fmt;
-            }
-
-            if (is->reformat_ctx) {
-                const void *ibuf[6]= {is->audio_buf1};
-                void *obuf[6]= {is->audio_buf2};
-                int istride[6]= {av_get_bits_per_sample_format(dec->sample_fmt)/8};
-                int ostride[6]= {2};
-                int len= data_size/istride[0];
-                if (av_audio_convert(is->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
-                    printf("av_audio_convert() failed\n");
-                    break;
-                }
-                is->audio_buf= is->audio_buf2;
-                /* FIXME: existing code assume that data_size equals framesize*channels*2
-                          remove this legacy cruft */
-                data_size= len*2;
-            }else{
-                is->audio_buf= is->audio_buf1;
-            }
-
-            /* if no pts, then compute it */
-            pts = is->audio_clock;
-            *pts_ptr = pts;
-            n = 2 * dec->channels;
-            is->audio_clock += (double)data_size /
-                (double)(n * dec->sample_rate);
-#if defined(DEBUG_SYNC)
-            {
-                static double last_clock;
-                printf("audio: delay=%0.3f clock=%0.3f pts=%0.3f\n",
-                       is->audio_clock - last_clock,
-                       is->audio_clock, pts);
-                last_clock = is->audio_clock;
-            }
-#endif
-            return data_size;
-        }
-
-        /* free the current packet */
-        if (pkt->data)
-            av_free_packet(pkt);
-
-        if (is->paused || is->audioq.abort_request) {
-            return -1;
-        }
-
-        /* read next packet */
-        if (packet_queue_get(&is->audioq, pkt, 1) < 0)
-            return -1;
-        if(pkt->data == flush_pkt.data){
-            avcodec_flush_buffers(dec);
-            continue;
-        }
-
-        is->audio_pkt_data = pkt->data;
-        is->audio_pkt_size = pkt->size;
-
-        /* if update the audio clock with the pts */
-        if (pkt->pts != AV_NOPTS_VALUE) {
-            is->audio_clock = av_q2d(is->audio_st->time_base)*pkt->pts;
-        }
-    }
-}
-
-/* get the current audio output buffer size, in samples. With SDL, we
-   cannot have a precise information */
-static int audio_write_get_buf_size(VideoState *is)
-{
-    return is->audio_buf_size - is->audio_buf_index;
-}
-
-
-/* prepare a new audio buffer */
-static void sdl_audio_callback(void *opaque, Uint8 *stream, int len)
-{
-    VideoState *is = opaque;
-    int audio_size, len1;
-    double pts;
-
-    audio_callback_time = av_gettime();
-
-    while (len > 0) {
-        if (is->audio_buf_index >= is->audio_buf_size) {
-           audio_size = audio_decode_frame(is, &pts);
-           if (audio_size < 0) {
-                /* if error, just output silence */
-               is->audio_buf = is->audio_buf1;
-               is->audio_buf_size = 1024;
-               memset(is->audio_buf, 0, is->audio_buf_size);
-           } else {
-               if (is->show_audio)
-                   update_sample_display(is, (int16_t *)is->audio_buf, audio_size);
-               audio_size = synchronize_audio(is, (int16_t *)is->audio_buf, audio_size,
-                                              pts);
-               is->audio_buf_size = audio_size;
-           }
-           is->audio_buf_index = 0;
-        }
-        len1 = is->audio_buf_size - is->audio_buf_index;
-        if (len1 > len)
-            len1 = len;
-        memcpy(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1);
-        len -= len1;
-        stream += len1;
-        is->audio_buf_index += len1;
-    }
-}
-
-/* open a given stream. Return 0 if OK */
-static int stream_component_open(VideoState *is, int stream_index)
-{
-    AVFormatContext *ic = is->ic;
-    AVCodecContext *enc;
-    AVCodec *codec;
-    SDL_AudioSpec wanted_spec, spec;
-
-    if (stream_index < 0 || stream_index >= ic->nb_streams)
-        return -1;
-    enc = ic->streams[stream_index]->codec;
-
-    /* prepare audio output */
-    if (enc->codec_type == CODEC_TYPE_AUDIO) {
-        if (enc->channels > 0) {
-            enc->request_channels = FFMIN(2, enc->channels);
-        } else {
-            enc->request_channels = 2;
-        }
-    }
-
-    codec = avcodec_find_decoder(enc->codec_id);
-    enc->debug_mv = debug_mv;
-    enc->debug = debug;
-    enc->workaround_bugs = workaround_bugs;
-    enc->lowres = lowres;
-    if(lowres) enc->flags |= CODEC_FLAG_EMU_EDGE;
-    enc->idct_algo= idct;
-    if(fast) enc->flags2 |= CODEC_FLAG2_FAST;
-    enc->skip_frame= skip_frame;
-    enc->skip_idct= skip_idct;
-    enc->skip_loop_filter= skip_loop_filter;
-    enc->error_recognition= error_recognition;
-    enc->error_concealment= error_concealment;
-
-    set_context_opts(enc, avctx_opts[enc->codec_type], 0);
-
-    if (!codec ||
-        avcodec_open(enc, codec) < 0)
-        return -1;
-
-    /* prepare audio output */
-    if (enc->codec_type == CODEC_TYPE_AUDIO) {
-        wanted_spec.freq = enc->sample_rate;
-        wanted_spec.format = AUDIO_S16SYS;
-        wanted_spec.channels = enc->channels;
-        wanted_spec.silence = 0;
-        wanted_spec.samples = SDL_AUDIO_BUFFER_SIZE;
-        wanted_spec.callback = sdl_audio_callback;
-        wanted_spec.userdata = is;
-        if (SDL_OpenAudio(&wanted_spec, &spec) < 0) {
-            fprintf(stderr, "SDL_OpenAudio: %s\n", SDL_GetError());
-            return -1;
-        }
-        is->audio_hw_buf_size = spec.size;
-        is->audio_src_fmt= SAMPLE_FMT_S16;
-    }
-
-    if(thread_count>1)
-        avcodec_thread_init(enc, thread_count);
-    enc->thread_count= thread_count;
-    ic->streams[stream_index]->discard = AVDISCARD_DEFAULT;
-    switch(enc->codec_type) {
-    case CODEC_TYPE_AUDIO:
-        is->audio_stream = stream_index;
-        is->audio_st = ic->streams[stream_index];
-        is->audio_buf_size = 0;
-        is->audio_buf_index = 0;
-
-        /* init averaging filter */
-        is->audio_diff_avg_coef = exp(log(0.01) / AUDIO_DIFF_AVG_NB);
-        is->audio_diff_avg_count = 0;
-        /* since we do not have a precise anough audio fifo fullness,
-           we correct audio sync only if larger than this threshold */
-        is->audio_diff_threshold = 2.0 * SDL_AUDIO_BUFFER_SIZE / enc->sample_rate;
-
-        memset(&is->audio_pkt, 0, sizeof(is->audio_pkt));
-        packet_queue_init(&is->audioq);
-        SDL_PauseAudio(0);
-        break;
-    case CODEC_TYPE_VIDEO:
-        is->video_stream = stream_index;
-        is->video_st = ic->streams[stream_index];
-
-        is->frame_last_delay = 40e-3;
-        is->frame_timer = (double)av_gettime() / 1000000.0;
-        is->video_current_pts_time = av_gettime();
-
-        packet_queue_init(&is->videoq);
-        is->video_tid = SDL_CreateThread(video_thread, is);
-        break;
-    case CODEC_TYPE_SUBTITLE:
-        is->subtitle_stream = stream_index;
-        is->subtitle_st = ic->streams[stream_index];
-        packet_queue_init(&is->subtitleq);
-
-        is->subtitle_tid = SDL_CreateThread(subtitle_thread, is);
-        break;
-    default:
-        break;
-    }
-    return 0;
-}
-
-static void stream_component_close(VideoState *is, int stream_index)
-{
-    AVFormatContext *ic = is->ic;
-    AVCodecContext *enc;
-
-    if (stream_index < 0 || stream_index >= ic->nb_streams)
-        return;
-    enc = ic->streams[stream_index]->codec;
-
-    switch(enc->codec_type) {
-    case CODEC_TYPE_AUDIO:
-        packet_queue_abort(&is->audioq);
-
-        SDL_CloseAudio();
-
-        packet_queue_end(&is->audioq);
-        if (is->reformat_ctx)
-            av_audio_convert_free(is->reformat_ctx);
-        break;
-    case CODEC_TYPE_VIDEO:
-        packet_queue_abort(&is->videoq);
-
-        /* note: we also signal this mutex to make sure we deblock the
-           video thread in all cases */
-        SDL_LockMutex(is->pictq_mutex);
-        SDL_CondSignal(is->pictq_cond);
-        SDL_UnlockMutex(is->pictq_mutex);
-
-        SDL_WaitThread(is->video_tid, NULL);
-
-        packet_queue_end(&is->videoq);
-        break;
-    case CODEC_TYPE_SUBTITLE:
-        packet_queue_abort(&is->subtitleq);
-
-        /* note: we also signal this mutex to make sure we deblock the
-           video thread in all cases */
-        SDL_LockMutex(is->subpq_mutex);
-        is->subtitle_stream_changed = 1;
-
-        SDL_CondSignal(is->subpq_cond);
-        SDL_UnlockMutex(is->subpq_mutex);
-
-        SDL_WaitThread(is->subtitle_tid, NULL);
-
-        packet_queue_end(&is->subtitleq);
-        break;
-    default:
-        break;
-    }
-
-    ic->streams[stream_index]->discard = AVDISCARD_ALL;
-    avcodec_close(enc);
-    switch(enc->codec_type) {
-    case CODEC_TYPE_AUDIO:
-        is->audio_st = NULL;
-        is->audio_stream = -1;
-        break;
-    case CODEC_TYPE_VIDEO:
-        is->video_st = NULL;
-        is->video_stream = -1;
-        break;
-    case CODEC_TYPE_SUBTITLE:
-        is->subtitle_st = NULL;
-        is->subtitle_stream = -1;
-        break;
-    default:
-        break;
-    }
-}
-
-static void dump_stream_info(const AVFormatContext *s)
-{
-    AVMetadataTag *tag = NULL;
-    while ((tag=av_metadata_get(s->metadata,"",tag,AV_METADATA_IGNORE_SUFFIX)))
-        fprintf(stderr, "%s: %s\n", tag->key, tag->value);
-}
-
-/* since we have only one decoding thread, we can use a global
-   variable instead of a thread local variable */
-static VideoState *global_video_state;
-
-static int decode_interrupt_cb(void)
-{
-    return (global_video_state && global_video_state->abort_request);
-}
-
-/* this thread gets the stream from the disk or the network */
-static int decode_thread(void *arg)
-{
-    VideoState *is = arg;
-    AVFormatContext *ic;
-    int err, i, ret, video_index, audio_index, subtitle_index;
-    AVPacket pkt1, *pkt = &pkt1;
-    AVFormatParameters params, *ap = &params;
-
-    video_index = -1;
-    audio_index = -1;
-    subtitle_index = -1;
-    is->video_stream = -1;
-    is->audio_stream = -1;
-    is->subtitle_stream = -1;
-
-    global_video_state = is;
-    url_set_interrupt_cb(decode_interrupt_cb);
-
-    memset(ap, 0, sizeof(*ap));
-
-    ap->width = frame_width;
-    ap->height= frame_height;
-    ap->time_base= (AVRational){1, 25};
-    ap->pix_fmt = frame_pix_fmt;
-
-    err = av_open_input_file(&ic, is->filename, is->iformat, 0, ap);
-    if (err < 0) {
-        print_error(is->filename, err);
-        ret = -1;
-        goto fail;
-    }
-    is->ic = ic;
-
-    if(genpts)
-        ic->flags |= AVFMT_FLAG_GENPTS;
-
-    err = av_find_stream_info(ic);
-    if (err < 0) {
-        fprintf(stderr, "%s: could not find codec parameters\n", is->filename);
-        ret = -1;
-        goto fail;
-    }
-    if(ic->pb)
-        ic->pb->eof_reached= 0; //FIXME hack, ffplay maybe should not use url_feof() to test for the end
-
-    /* if seeking requested, we execute it */
-    if (start_time != AV_NOPTS_VALUE) {
-        int64_t timestamp;
-
-        timestamp = start_time;
-        /* add the stream start time */
-        if (ic->start_time != AV_NOPTS_VALUE)
-            timestamp += ic->start_time;
-        ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
-        if (ret < 0) {
-            fprintf(stderr, "%s: could not seek to position %0.3f\n",
-                    is->filename, (double)timestamp / AV_TIME_BASE);
-        }
-    }
-
-    for(i = 0; i < ic->nb_streams; i++) {
-        AVCodecContext *enc = ic->streams[i]->codec;
-        ic->streams[i]->discard = AVDISCARD_ALL;
-        switch(enc->codec_type) {
-        case CODEC_TYPE_AUDIO:
-            if (wanted_audio_stream-- >= 0 && !audio_disable)
-                audio_index = i;
-            break;
-        case CODEC_TYPE_VIDEO:
-            if (wanted_video_stream-- >= 0 && !video_disable)
-                video_index = i;
-            break;
-        case CODEC_TYPE_SUBTITLE:
-            if (wanted_subtitle_stream-- >= 0 && !video_disable)
-                subtitle_index = i;
-            break;
-        default:
-            break;
-        }
-    }
-    if (show_status) {
-        dump_format(ic, 0, is->filename, 0);
-        dump_stream_info(ic);
-    }
-
-    /* open the streams */
-    if (audio_index >= 0) {
-        stream_component_open(is, audio_index);
-    }
-
-    if (video_index >= 0) {
-        stream_component_open(is, video_index);
-    } else {
-        if (!display_disable)
-            is->show_audio = 1;
-    }
-
-    if (subtitle_index >= 0) {
-        stream_component_open(is, subtitle_index);
-    }
-
-    if (is->video_stream < 0 && is->audio_stream < 0) {
-        fprintf(stderr, "%s: could not open codecs\n", is->filename);
-        ret = -1;
-        goto fail;
-    }
-
-    for(;;) {
-        if (is->abort_request)
-            break;
-        if (is->paused != is->last_paused) {
-            is->last_paused = is->paused;
-            if (is->paused)
-                av_read_pause(ic);
-            else
-                av_read_play(ic);
-        }
-#if CONFIG_RTSP_DEMUXER
-        if (is->paused && !strcmp(ic->iformat->name, "rtsp")) {
-            /* wait 10 ms to avoid trying to get another packet */
-            /* XXX: horrible */
-            SDL_Delay(10);
-            continue;
-        }
-#endif
-        if (is->seek_req) {
-            int stream_index= -1;
-            int64_t seek_target= is->seek_pos;
-
-            if     (is->   video_stream >= 0) stream_index= is->   video_stream;
-            else if(is->   audio_stream >= 0) stream_index= is->   audio_stream;
-            else if(is->subtitle_stream >= 0) stream_index= is->subtitle_stream;
-
-            if(stream_index>=0){
-                seek_target= av_rescale_q(seek_target, AV_TIME_BASE_Q, ic->streams[stream_index]->time_base);
-            }
-
-            ret = av_seek_frame(is->ic, stream_index, seek_target, is->seek_flags);
-            if (ret < 0) {
-                fprintf(stderr, "%s: error while seeking\n", is->ic->filename);
-            }else{
-                if (is->audio_stream >= 0) {
-                    packet_queue_flush(&is->audioq);
-                    packet_queue_put(&is->audioq, &flush_pkt);
-                }
-                if (is->subtitle_stream >= 0) {
-                    packet_queue_flush(&is->subtitleq);
-                    packet_queue_put(&is->subtitleq, &flush_pkt);
-                }
-                if (is->video_stream >= 0) {
-                    packet_queue_flush(&is->videoq);
-                    packet_queue_put(&is->videoq, &flush_pkt);
-                }
-            }
-            is->seek_req = 0;
-        }
-
-        /* if the queue are full, no need to read more */
-        if (is->audioq.size > MAX_AUDIOQ_SIZE ||
-            is->videoq.size > MAX_VIDEOQ_SIZE ||
-            is->subtitleq.size > MAX_SUBTITLEQ_SIZE) {
-            /* wait 10 ms */
-            SDL_Delay(10);
-            continue;
-        }
-        if(url_feof(ic->pb)) {
-            av_init_packet(pkt);
-            pkt->data=NULL;
-            pkt->size=0;
-            pkt->stream_index= is->video_stream;
-            packet_queue_put(&is->videoq, pkt);
-            continue;
-        }
-        ret = av_read_frame(ic, pkt);
-        if (ret < 0) {
-            if (ret != AVERROR_EOF && url_ferror(ic->pb) == 0) {
-                SDL_Delay(100); /* wait for user event */
-                continue;
-            } else
-                break;
-        }
-        if (pkt->stream_index == is->audio_stream) {
-            packet_queue_put(&is->audioq, pkt);
-        } else if (pkt->stream_index == is->video_stream) {
-            packet_queue_put(&is->videoq, pkt);
-        } else if (pkt->stream_index == is->subtitle_stream) {
-            packet_queue_put(&is->subtitleq, pkt);
-        } else {
-            av_free_packet(pkt);
-        }
-    }
-    /* wait until the end */
-    while (!is->abort_request) {
-        SDL_Delay(100);
-    }
-
-    ret = 0;
- fail:
-    /* disable interrupting */
-    global_video_state = NULL;
-
-    /* close each stream */
-    if (is->audio_stream >= 0)
-        stream_component_close(is, is->audio_stream);
-    if (is->video_stream >= 0)
-        stream_component_close(is, is->video_stream);
-    if (is->subtitle_stream >= 0)
-        stream_component_close(is, is->subtitle_stream);
-    if (is->ic) {
-        av_close_input_file(is->ic);
-        is->ic = NULL; /* safety */
-    }
-    url_set_interrupt_cb(NULL);
-
-    if (ret != 0) {
-        SDL_Event event;
-
-        event.type = FF_QUIT_EVENT;
-        event.user.data1 = is;
-        SDL_PushEvent(&event);
-    }
-    return 0;
-}
-
-static VideoState *stream_open(const char *filename, AVInputFormat *iformat)
-{
-    VideoState *is;
-
-    is = av_mallocz(sizeof(VideoState));
-    if (!is)
-        return NULL;
-    av_strlcpy(is->filename, filename, sizeof(is->filename));
-    is->iformat = iformat;
-    is->ytop = 0;
-    is->xleft = 0;
-
-    /* start video display */
-    is->pictq_mutex = SDL_CreateMutex();
-    is->pictq_cond = SDL_CreateCond();
-
-    is->subpq_mutex = SDL_CreateMutex();
-    is->subpq_cond = SDL_CreateCond();
-
-    /* add the refresh timer to draw the picture */
-    schedule_refresh(is, 40);
-
-    is->av_sync_type = av_sync_type;
-    is->parse_tid = SDL_CreateThread(decode_thread, is);
-    if (!is->parse_tid) {
-        av_free(is);
-        return NULL;
-    }
-    return is;
-}
-
-static void stream_close(VideoState *is)
-{
-    VideoPicture *vp;