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-rw-r--r--contrib/ffmpeg/ffplay.c2488
1 files changed, 2488 insertions, 0 deletions
diff --git a/contrib/ffmpeg/ffplay.c b/contrib/ffmpeg/ffplay.c
new file mode 100644
index 000000000..f80a43548
--- /dev/null
+++ b/contrib/ffmpeg/ffplay.c
@@ -0,0 +1,2488 @@
+/*
+ * 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
+ */
+#define HAVE_AV_CONFIG_H
+#include "avformat.h"
+#include "swscale.h"
+
+#include "version.h"
+#include "cmdutils.h"
+
+#include <SDL.h>
+#include <SDL_thread.h>
+
+#ifdef __MINGW32__
+#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
+
+//#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_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; ///<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;
+
+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 = 640;
+static int screen_height = 480;
+static int audio_disable;
+static int video_disable;
+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_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;
+
+AVPacket flush_pkt;
+
+#define FF_ALLOC_EVENT (SDL_USEREVENT)
+#define FF_REFRESH_EVENT (SDL_USEREVENT + 1)
+#define FF_QUIT_EVENT (SDL_USEREVENT + 2)
+
+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;
+ /* 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;
+ *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 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;
+
+ lum = dst->data[0] + rect->y * dst->linesize[0];
+ cb = dst->data[1] + (rect->y >> 1) * dst->linesize[1];
+ cr = dst->data[2] + (rect->y >> 1) * dst->linesize[2];
+
+ width2 = (rect->w + 1) >> 1;
+ skip2 = rect->x >> 1;
+ wrap = dst->linesize[0];
+ wrap3 = rect->linesize;
+ p = rect->bitmap;
+ pal = rect->rgba_palette; /* Now in YCrCb! */
+
+ if (rect->y & 1) {
+ lum += rect->x;
+ cb += skip2;
+ cr += skip2;
+
+ if (rect->x & 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 = rect->w - (rect->x & 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 += wrap3 + (wrap3 - rect->w * BPP);
+ lum += wrap + (wrap - rect->w - rect->x);
+ cb += dst->linesize[1] - width2 - skip2;
+ cr += dst->linesize[2] - width2 - skip2;
+ }
+ for(h = rect->h - (rect->y & 1); h >= 2; h -= 2) {
+ lum += rect->x;
+ cb += skip2;
+ cr += skip2;
+
+ if (rect->x & 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 = rect->w - (rect->x & 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, 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, 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 - rect->w * BPP);
+ lum += wrap + (wrap - rect->w - rect->x);
+ cb += dst->linesize[1] - width2 - skip2;
+ cr += dst->linesize[2] - width2 - skip2;
+ }
+ /* handle odd height */
+ if (h) {
+ lum += rect->x;
+ cb += skip2;
+ cr += skip2;
+
+ if (rect->x & 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 = rect->w - (rect->x & 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_free(sp->sub.rects[i].bitmap);
+ av_free(sp->sub.rects[i].rgba_palette);
+ }
+
+ 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->codec->sample_aspect_ratio.num == 0)
+ aspect_ratio = 0;
+ else
+ aspect_ratio = av_q2d(is->video_st->codec->sample_aspect_ratio)
+ * is->video_st->codec->width / is->video_st->codec->height;;
+ if (aspect_ratio <= 0.0)
+ aspect_ratio = (float)is->video_st->codec->width /
+ (float)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]);
+
+ SDL_UnlockYUVOverlay (vp->bmp);
+ }
+ }
+ }
+
+
+ /* XXX: we suppose the screen has a 1.0 pixel ratio */
+ height = is->height;
+ width = ((int)rint(height * aspect_ratio)) & -3;
+ if (width > is->width) {
+ width = is->width;
+ height = ((int)rint(width / aspect_ratio)) & -3;
+ }
+ 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->xleft + 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 = compute_mod(s->sample_array_index - delay * channels, SAMPLE_ARRAY_SIZE);
+ 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);
+}
+
+/* display the current picture, if any */
+static void video_display(VideoState *is)
+{
+ 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)
+{
+ 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);
+ }
+}
+
+/* called to display each frame */
+static void video_refresh_timer(void *opaque)
+{
+ VideoState *is = opaque;
+ VideoPicture *vp;
+ double actual_delay, delay, sync_threshold, ref_clock, diff;
+
+ 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();
+
+ /* compute nominal delay */
+ delay = vp->pts - is->frame_last_pts;
+ if (delay <= 0 || delay >= 1.0) {
+ /* if incorrect delay, use previous one */
+ delay = is->frame_last_delay;
+ }
+ is->frame_last_delay = delay;
+ is->frame_last_pts = vp->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 = vp->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 = AV_SYNC_THRESHOLD;
+ if (delay > sync_threshold)
+ 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;
+ }
+ /* launch timer for next picture */
+ schedule_refresh(is, (int)(actual_delay * 1000 + 0.5));
+
+#if defined(DEBUG_SYNC)
+ printf("video: delay=%0.3f actual_delay=%0.3f pts=%0.3f A-V=%f\n",
+ delay, actual_delay, vp->pts, -diff);
+#endif
+
+ 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_YUV422:
+ 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];
+ if (img_convert_ctx == NULL) {
+ img_convert_ctx = sws_getContext(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 */
+ pts = 0;
+ if (pkt->dts != AV_NOPTS_VALUE)
+ pts = av_q2d(is->video_st->time_base)*pkt->dts;
+
+ len1 = avcodec_decode_video(is->video_st->codec,
+ frame, &got_picture,
+ pkt->data, pkt->size);
+// 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, sp->sub.rects[i].rgba_palette + 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(sp->sub.rects[i].rgba_palette + 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, uint8_t *audio_buf, double *pts_ptr)
+{
+ AVPacket *pkt = &is->audio_pkt;
+ int n, len1, data_size;
+ double pts;
+
+ for(;;) {
+ /* NOTE: the audio packet can contain several frames */
+ while (is->audio_pkt_size > 0) {
+ len1 = avcodec_decode_audio(is->audio_st->codec,
+ (int16_t *)audio_buf, &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 no pts, then compute it */
+ pts = is->audio_clock;
+ *pts_ptr = pts;
+ n = 2 * is->audio_st->codec->channels;
+ is->audio_clock += (double)data_size /
+ (double)(n * is->audio_st->codec->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(is->audio_st->codec);
+ 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_hw_buf_size - is->audio_buf_index;
+}
+
+
+/* prepare a new audio buffer */
+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, is->audio_buf, &pts);
+ if (audio_size < 0) {
+ /* if error, just output silence */
+ 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) {
+ wanted_spec.freq = enc->sample_rate;
+ wanted_spec.format = AUDIO_S16SYS;
+ /* hack for AC3. XXX: suppress that */
+ if (enc->channels > 2)
+ enc->channels = 2;
+ 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;
+ }
+
+ 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_resilience= error_resilience;
+ enc->error_concealment= error_concealment;
+ if (!codec ||
+ avcodec_open(enc, codec) < 0)
+ return -1;
+#if defined(HAVE_THREADS)
+ if(thread_count>1)
+ avcodec_thread_init(enc, thread_count);
+#endif
+ enc->thread_count= thread_count;
+ 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);
+ 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;
+ }
+
+ 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)
+{
+ if (s->track != 0)
+ fprintf(stderr, "Track: %d\n", s->track);
+ if (s->title[0] != '\0')
+ fprintf(stderr, "Title: %s\n", s->title);
+ if (s->author[0] != '\0')
+ fprintf(stderr, "Author: %s\n", s->author);
+ if (s->copyright[0] != '\0')
+ fprintf(stderr, "Copyright: %s\n", s->copyright);
+ if (s->comment[0] != '\0')
+ fprintf(stderr, "Comment: %s\n", s->comment);
+ if (s->album[0] != '\0')
+ fprintf(stderr, "Album: %s\n", s->album);
+ if (s->year != 0)
+ fprintf(stderr, "Year: %d\n", s->year);
+ if (s->genre[0] != '\0')
+ fprintf(stderr, "Genre: %s\n", s->genre);
+}
+
+/* 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, use_play;
+ AVPacket pkt1, *pkt = &pkt1;
+ AVFormatParameters params, *ap = &params;
+
+ video_index = -1;
+ audio_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->initial_pause = 1; /* we force a pause when starting an RTSP
+ stream */
+
+ 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;
+#ifdef CONFIG_NETWORK
+ use_play = (ic->iformat == &rtsp_demuxer);
+#else
+ use_play = 0;
+#endif
+
+ if(genpts)
+ ic->flags |= AVFMT_FLAG_GENPTS;
+
+ if (!use_play) {
+ err = av_find_stream_info(ic);
+ if (err < 0) {
+ fprintf(stderr, "%s: could not find codec parameters\n", is->filename);
+ ret = -1;
+ goto fail;
+ }
+ ic->pb.eof_reached= 0; //FIXME hack, ffplay maybe shouldnt 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);
+ }
+ }
+
+ /* now we can begin to play (RTSP stream only) */
+ av_read_play(ic);
+
+ if (use_play) {
+ err = av_find_stream_info(ic);
+ if (err < 0) {
+ fprintf(stderr, "%s: could not find codec parameters\n", is->filename);
+ ret = -1;
+ goto fail;
+ }
+ }
+
+ for(i = 0; i < ic->nb_streams; i++) {
+ AVCodecContext *enc = ic->streams[i]->codec;
+ switch(enc->codec_type) {
+ case CODEC_TYPE_AUDIO:
+ if (audio_index < 0 && !audio_disable)
+ audio_index = i;
+ break;
+ case CODEC_TYPE_VIDEO:
+ if (video_index < 0 && !video_disable)
+ video_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 (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;
+#ifdef CONFIG_NETWORK
+ if (is->paused != is->last_paused) {
+ is->last_paused = is->paused;
+ if (is->paused)
+ av_read_pause(ic);
+ else
+ av_read_play(ic);
+ }
+ if (is->paused && ic->iformat == &rtsp_demuxer) {
+ /* wait 10 ms to avoid trying to get another packet */
+ /* XXX: horrible */
+ SDL_Delay(10);
+ continue;
+ }
+#endif
+ if (is->seek_req) {
+ ret = av_seek_frame(is->ic, -1, is->seek_pos, 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 ||
+ url_feof(&ic->pb)) {
+ /* wait 10 ms */
+ SDL_Delay(10);
+ continue;
+ }
+ ret = av_read_frame(ic, pkt);
+ if (ret < 0) {
+ if (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;
+ pstrcpy(is->filename, sizeof(is->filename), filename);
+ is->iformat = iformat;
+ if (screen) {
+ is->width = screen->w;
+ is->height = screen->h;
+ }
+ 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;
+ int i;
+ /* XXX: use a special url_shutdown call to abort parse cleanly */
+ is->abort_request = 1;
+ SDL_WaitThread(is->parse_tid, NULL);
+
+ /* free all pictures */
+ for(i=0;i<VIDEO_PICTURE_QUEUE_SIZE; i++) {
+ vp = &is->pictq[i];
+ if (vp->bmp) {
+ SDL_FreeYUVOverlay(vp->bmp);
+ vp->bmp = NULL;
+ }
+ }
+ SDL_DestroyMutex(is->pictq_mutex);
+ SDL_DestroyCond(is->pictq_cond);
+ SDL_DestroyMutex(is->subpq_mutex);
+ SDL_DestroyCond(is->subpq_cond);
+}
+
+static void stream_cycle_channel(VideoState *is, int codec_type)
+{
+ AVFormatContext *ic = is->ic;
+ int start_index, stream_index;
+ AVStream *st;
+
+ if (codec_type == CODEC_TYPE_VIDEO)
+ start_index = is->video_stream;
+ else if (codec_type == CODEC_TYPE_AUDIO)
+ start_index = is->audio_stream;
+ else
+ start_index = is->subtitle_stream;
+ if (start_index < (codec_type == CODEC_TYPE_SUBTITLE ? -1 : 0))
+ return;
+ stream_index = start_index;
+ for(;;) {
+ if (++stream_index >= is->ic->nb_streams)
+ {
+ if (codec_type == CODEC_TYPE_SUBTITLE)
+ {
+ stream_index = -1;
+ goto the_end;
+ } else
+ stream_index = 0;
+ }
+ if (stream_index == start_index)
+ return;
+ st = ic->streams[stream_index];
+ if (st->codec->codec_type == codec_type) {
+ /* check that parameters are OK */
+ switch(codec_type) {
+ case CODEC_TYPE_AUDIO:
+ if (st->codec->sample_rate != 0 &&
+ st->codec->channels != 0)
+ goto the_end;
+ break;
+ case CODEC_TYPE_VIDEO:
+ case CODEC_TYPE_SUBTITLE:
+ goto the_end;
+ default:
+ break;
+ }
+ }
+ }
+ the_end:
+ stream_component_close(is, start_index);
+ stream_component_open(is, stream_index);
+}
+
+
+static void toggle_full_screen(void)
+{
+ int w, h, flags;
+ is_full_screen = !is_full_screen;
+ if (!fs_screen_width) {
+ /* use default SDL method */
+ SDL_WM_ToggleFullScreen(screen);
+ } else {
+ /* use the recorded resolution */
+ flags = SDL_HWSURFACE|SDL_ASYNCBLIT|SDL_HWACCEL;
+ if (is_full_screen) {
+ w = fs_screen_width;
+ h = fs_screen_height;
+ flags |= SDL_FULLSCREEN;
+ } else {
+ w = screen_width;
+ h = screen_height;
+ flags |= SDL_RESIZABLE;
+ }
+ screen = SDL_SetVideoMode(w, h, 0, flags);
+ cur_stream->width = w;
+ cur_stream->height = h;
+ }
+}
+
+static void toggle_pause(void)
+{
+ if (cur_stream)
+ stream_pause(cur_stream);
+ step = 0;
+}
+
+static void step_to_next_frame(void)
+{
+ if (cur_stream) {
+ if (cur_stream->paused)
+ cur_stream->paused=0;
+ cur_stream->video_current_pts = get_video_clock(cur_stream);
+ }
+ step = 1;
+}
+
+static void do_exit(void)
+{
+ if (cur_stream) {
+ stream_close(cur_stream);
+ cur_stream = NULL;
+ }
+ if (show_status)
+ printf("\n");
+ SDL_Quit();
+ exit(0);
+}
+
+static void toggle_audio_display(void)
+{
+ if (cur_stream) {
+ cur_stream->show_audio = !cur_stream->show_audio;
+ }
+}
+
+/* handle an event sent by the GUI */
+static void event_loop(void)
+{
+ SDL_Event event;
+ double incr, pos, frac;
+
+ for(;;) {
+ SDL_WaitEvent(&event);
+ switch(event.type) {
+ case SDL_KEYDOWN:
+ switch(event.key.keysym.sym) {
+ case SDLK_ESCAPE:
+ case SDLK_q:
+ do_exit();
+ break;
+ case SDLK_f:
+ toggle_full_screen();
+ break;
+ case SDLK_p:
+ case SDLK_SPACE:
+ toggle_pause();
+ break;
+ case SDLK_s: //S: Step to next frame
+ step_to_next_frame();
+ break;
+ case SDLK_a:
+ if (cur_stream)
+ stream_cycle_channel(cur_stream, CODEC_TYPE_AUDIO);
+ break;
+ case SDLK_v:
+ if (cur_stream)
+ stream_cycle_channel(cur_stream, CODEC_TYPE_VIDEO);
+ break;
+ case SDLK_t:
+ if (cur_stream)
+ stream_cycle_channel(cur_stream, CODEC_TYPE_SUBTITLE);
+ break;
+ case SDLK_w:
+ toggle_audio_display();
+ break;
+ case SDLK_LEFT:
+ incr = -10.0;
+ goto do_seek;
+ case SDLK_RIGHT:
+ incr = 10.0;
+ goto do_seek;
+ case SDLK_UP:
+ incr = 60.0;
+ goto do_seek;
+ case SDLK_DOWN:
+ incr = -60.0;
+ do_seek:
+ if (cur_stream) {
+ if (seek_by_bytes) {
+ pos = url_ftell(&cur_stream->ic->pb);
+ if (cur_stream->ic->bit_rate)
+ incr *= cur_stream->ic->bit_rate / 60.0;
+ else
+ incr *= 180000.0;
+ pos += incr;
+ stream_seek(cur_stream, pos, incr);
+ } else {
+ pos = get_master_clock(cur_stream);
+ pos += incr;
+ stream_seek(cur_stream, (int64_t)(pos * AV_TIME_BASE), incr);
+ }
+ }
+ break;
+ default:
+ break;
+ }
+ break;
+ case SDL_MOUSEBUTTONDOWN:
+ if (cur_stream) {
+ int ns, hh, mm, ss;
+ int tns, thh, tmm, tss;
+ tns = cur_stream->ic->duration/1000000LL;
+ thh = tns/3600;
+ tmm = (tns%3600)/60;
+ tss = (tns%60);
+ frac = (double)event.button.x/(double)cur_stream->width;
+ ns = frac*tns;
+ hh = ns/3600;
+ mm = (ns%3600)/60;
+ ss = (ns%60);
+ fprintf(stderr, "Seek to %2.0f%% (%2d:%02d:%02d) of total duration (%2d:%02d:%02d) \n", frac*100,
+ hh, mm, ss, thh, tmm, tss);
+ stream_seek(cur_stream, (int64_t)(cur_stream->ic->start_time+frac*cur_stream->ic->duration), 0);
+ }
+ break;
+ case SDL_VIDEORESIZE:
+ if (cur_stream) {
+ screen = SDL_SetVideoMode(event.resize.w, event.resize.h, 0,
+ SDL_HWSURFACE|SDL_RESIZABLE|SDL_ASYNCBLIT|SDL_HWACCEL);
+ cur_stream->width = event.resize.w;
+ cur_stream->height = event.resize.h;
+ }
+ break;
+ case SDL_QUIT:
+ case FF_QUIT_EVENT:
+ do_exit();
+ break;
+ case FF_ALLOC_EVENT:
+ alloc_picture(event.user.data1);
+ break;
+ case FF_REFRESH_EVENT:
+ video_refresh_timer(event.user.data1);
+ break;
+ default:
+ break;
+ }
+ }
+}
+
+void opt_width(const char *arg)
+{
+ screen_width = atoi(arg);
+}
+
+void opt_height(const char *arg)
+{
+ screen_height = atoi(arg);
+}
+
+static void opt_format(const char *arg)
+{
+ file_iformat = av_find_input_format(arg);
+ if (!file_iformat) {
+ fprintf(stderr, "Unknown input format: %s\n", arg);
+ exit(1);
+ }
+}
+
+#ifdef CONFIG_NETWORK
+void opt_rtp_tcp(void)
+{
+ /* only tcp protocol */
+ rtsp_default_protocols = (1 << RTSP_PROTOCOL_RTP_TCP);
+}
+#endif
+
+void opt_sync(const char *arg)
+{
+ if (!strcmp(arg, "audio"))
+ av_sync_type = AV_SYNC_AUDIO_MASTER;
+ else if (!strcmp(arg, "video"))
+ av_sync_type = AV_SYNC_VIDEO_MASTER;
+ else if (!strcmp(arg, "ext"))
+ av_sync_type = AV_SYNC_EXTERNAL_CLOCK;
+ else
+ show_help();
+}
+
+void opt_seek(const char *arg)
+{
+ start_time = parse_date(arg, 1);
+}
+
+static void opt_debug(const char *arg)
+{
+ av_log_set_level(99);
+ debug = atoi(arg);
+}
+
+static void opt_vismv(const char *arg)
+{
+ debug_mv = atoi(arg);
+}
+
+static void opt_thread_count(const char *arg)
+{
+ thread_count= atoi(arg);
+#if !defined(HAVE_THREADS)
+ fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
+#endif
+}
+
+const OptionDef options[] = {
+ { "h", 0, {(void*)show_help}, "show help" },
+ { "x", HAS_ARG, {(void*)opt_width}, "force displayed width", "width" },
+ { "y", HAS_ARG, {(void*)opt_height}, "force displayed height", "height" },
+ { "fs", OPT_BOOL, {(void*)&is_full_screen}, "force full screen" },
+ { "an", OPT_BOOL, {(void*)&audio_disable}, "disable audio" },
+ { "vn", OPT_BOOL, {(void*)&video_disable}, "disable video" },
+ { "ss", HAS_ARG, {(void*)&opt_seek}, "seek to a given position in seconds", "pos" },
+ { "bytes", OPT_BOOL, {(void*)&seek_by_bytes}, "seek by bytes" },
+ { "nodisp", OPT_BOOL, {(void*)&display_disable}, "disable graphical display" },
+ { "f", HAS_ARG, {(void*)opt_format}, "force format", "fmt" },
+ { "stats", OPT_BOOL | OPT_EXPERT, {(void*)&show_status}, "show status", "" },
+ { "debug", HAS_ARG | OPT_EXPERT, {(void*)opt_debug}, "print specific debug info", "" },
+ { "bug", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&workaround_bugs}, "workaround bugs", "" },
+ { "vismv", HAS_ARG | OPT_EXPERT, {(void*)opt_vismv}, "visualize motion vectors", "" },
+ { "fast", OPT_BOOL | OPT_EXPERT, {(void*)&fast}, "non spec compliant optimizations", "" },
+ { "genpts", OPT_BOOL | OPT_EXPERT, {(void*)&genpts}, "generate pts", "" },
+ { "lowres", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&lowres}, "", "" },
+ { "skiploop", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_loop_filter}, "", "" },
+ { "skipframe", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_frame}, "", "" },
+ { "skipidct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_idct}, "", "" },
+ { "idct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&idct}, "set idct algo", "algo" },
+ { "er", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_resilience}, "set error detection threshold (0-4)", "threshold" },
+ { "ec", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_concealment}, "set error concealment options", "bit_mask" },
+#ifdef CONFIG_NETWORK
+ { "rtp_tcp", OPT_EXPERT, {(void*)&opt_rtp_tcp}, "force RTP/TCP protocol usage", "" },
+#endif
+ { "sync", HAS_ARG | OPT_EXPERT, {(void*)opt_sync}, "set audio-video sync. type (type=audio/video/ext)", "type" },
+ { "threads", HAS_ARG | OPT_EXPERT, {(void*)opt_thread_count}, "thread count", "count" },
+ { NULL, },
+};
+
+void show_help(void)
+{
+ printf("ffplay version " FFMPEG_VERSION ", Copyright (c) 2003-2006 Fabrice Bellard, et al.\n"
+ "usage: ffplay [options] input_file\n"
+ "Simple media player\n");
+ printf("\n");
+ show_help_options(options, "Main options:\n",
+ OPT_EXPERT, 0);
+ show_help_options(options, "\nAdvanced options:\n",
+ OPT_EXPERT, OPT_EXPERT);
+ printf("\nWhile playing:\n"
+ "q, ESC quit\n"
+ "f toggle full screen\n"
+ "p, SPC pause\n"
+ "a cycle audio channel\n"
+ "v cycle video channel\n"
+ "t cycle subtitle channel\n"
+ "w show audio waves\n"
+ "left/right seek backward/forward 10 seconds\n"
+ "down/up seek backward/forward 1 minute\n"
+ "mouse click seek to percentage in file corresponding to fraction of width\n"
+ );
+ exit(1);
+}
+
+void parse_arg_file(const char *filename)
+{
+ if (!strcmp(filename, "-"))
+ filename = "pipe:";
+ input_filename = filename;
+}
+
+/* Called from the main */
+int main(int argc, char **argv)
+{
+ int flags, w, h;
+
+ /* register all codecs, demux and protocols */
+ av_register_all();
+
+ #ifdef CONFIG_OS2
+ MorphToPM(); // Morph the VIO application to a PM one to be able to use Win* functions
+
+ // Make stdout and stderr unbuffered
+ setbuf( stdout, NULL );
+ setbuf( stderr, NULL );
+ #endif
+
+ parse_options(argc, argv, options);
+
+ if (!input_filename)
+ show_help();
+
+ if (display_disable) {
+ video_disable = 1;
+ }
+ flags = SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER;
+#if !defined(__MINGW32__) && !defined(CONFIG_DARWIN)
+ flags |= SDL_INIT_EVENTTHREAD; /* Not supported on win32 or darwin */
+#endif
+ if (SDL_Init (flags)) {
+ fprintf(stderr, "Could not initialize SDL - %s\n", SDL_GetError());
+ exit(1);
+ }
+
+ if (!display_disable) {
+#ifdef HAVE_SDL_VIDEO_SIZE
+ const SDL_VideoInfo *vi = SDL_GetVideoInfo();
+ fs_screen_width = vi->current_w;
+ fs_screen_height = vi->current_h;
+#endif
+ flags = SDL_HWSURFACE|SDL_ASYNCBLIT|SDL_HWACCEL;
+ if (is_full_screen && fs_screen_width) {
+ w = fs_screen_width;
+ h = fs_screen_height;
+ flags |= SDL_FULLSCREEN;
+ } else {
+ w = screen_width;
+ h = screen_height;
+ flags |= SDL_RESIZABLE;
+ }
+#ifndef CONFIG_DARWIN
+ 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");
+ exit(1);
+ }
+ SDL_WM_SetCaption("FFplay", "FFplay");
+ }
+
+ SDL_EventState(SDL_ACTIVEEVENT, SDL_IGNORE);
+ SDL_EventState(SDL_MOUSEMOTION, SDL_IGNORE);
+ SDL_EventState(SDL_SYSWMEVENT, SDL_IGNORE);
+ SDL_EventState(SDL_USEREVENT, SDL_IGNORE);
+
+ av_init_packet(&flush_pkt);
+ flush_pkt.data= "FLUSH";
+
+ cur_stream = stream_open(input_filename, file_iformat);
+
+ event_loop();
+
+ /* never returns */
+
+ return 0;
+}
generated by cgit v1.2.3 (git 2.25.1) at 2025-04-26 05:40:53 +0000