static pixmap_t *
opengl_read_pixels(glw_root_t *gr)
{
pixmap_t *pm = pixmap_create(gr->gr_width, gr->gr_height, PIXMAP_BGR32, 0);
glReadPixels(0, 0, gr->gr_width, gr->gr_height,
GL_BGRA, GL_UNSIGNED_BYTE, pm->pm_data);
pm->pm_flags |= PIXMAP_VFLIP;
return pm;
}
static pixmap_t *
rsx_read_pixels(glw_root_t *gr)
{
glw_ps3_t *gp = (glw_ps3_t *)gr;
pixmap_t *pm = pixmap_create(gr->gr_width, gr->gr_height, PIXMAP_RGBA, 0);
memcpy(pm->pm_data, rsx_to_ppu(gp->framebuffer[0]),
pm->pm_linesize * pm->pm_height);
return pm;
}
static pixmap_t *
fa_image_from_video2(const char *url, const image_meta_t *im,
const char *cacheid, char *errbuf, size_t errlen,
int sec, time_t mtime, cancellable_t *c)
{
pixmap_t *pm = NULL;
if(ifv_url == NULL || strcmp(url, ifv_url)) {
// Need to open
int i;
AVFormatContext *fctx;
fa_handle_t *fh = fa_open_ex(url, errbuf, errlen, FA_BUFFERED_BIG, NULL);
if(fh == NULL)
return NULL;
AVIOContext *avio = fa_libav_reopen(fh, 0);
if((fctx = fa_libav_open_format(avio, url, NULL, 0, NULL, 0, 0,
0)) == NULL) {
fa_libav_close(avio);
snprintf(errbuf, errlen, "Unable to open format");
return NULL;
}
if(!strcmp(fctx->iformat->name, "avi"))
fctx->flags |= AVFMT_FLAG_GENPTS;
AVCodecContext *ctx = NULL;
for(i = 0; i < fctx->nb_streams; i++) {
if(fctx->streams[i]->codec != NULL &&
fctx->streams[i]->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
ctx = fctx->streams[i]->codec;
break;
}
}
if(ctx == NULL) {
fa_libav_close_format(fctx);
return NULL;
}
AVCodec *codec = avcodec_find_decoder(ctx->codec_id);
if(codec == NULL) {
fa_libav_close_format(fctx);
snprintf(errbuf, errlen, "Unable to find codec");
return NULL;
}
if(avcodec_open2(ctx, codec, NULL) < 0) {
fa_libav_close_format(fctx);
snprintf(errbuf, errlen, "Unable to open codec");
return NULL;
}
ifv_close();
ifv_stream = i;
ifv_url = strdup(url);
ifv_fctx = fctx;
ifv_ctx = ctx;
}
AVPacket pkt;
AVFrame *frame = av_frame_alloc();
int got_pic;
AVStream *st = ifv_fctx->streams[ifv_stream];
int64_t ts = av_rescale(sec, st->time_base.den, st->time_base.num);
if(av_seek_frame(ifv_fctx, ifv_stream, ts, AVSEEK_FLAG_BACKWARD) < 0) {
ifv_close();
snprintf(errbuf, errlen, "Unable to seek to %"PRId64, ts);
return NULL;
}
avcodec_flush_buffers(ifv_ctx);
#define MAX_FRAME_SCAN 500
int cnt = MAX_FRAME_SCAN;
while(1) {
int r;
r = av_read_frame(ifv_fctx, &pkt);
if(r == AVERROR(EAGAIN))
continue;
if(r == AVERROR_EOF)
break;
if(cancellable_is_cancelled(c)) {
snprintf(errbuf, errlen, "Cancelled");
av_free_packet(&pkt);
break;
}
if(r != 0) {
ifv_close();
break;
}
if(pkt.stream_index != ifv_stream) {
av_free_packet(&pkt);
continue;
}
cnt--;
int want_pic = pkt.pts >= ts || cnt <= 0;
ifv_ctx->skip_frame = want_pic ? AVDISCARD_DEFAULT : AVDISCARD_NONREF;
avcodec_decode_video2(ifv_ctx, frame, &got_pic, &pkt);
av_free_packet(&pkt);
if(got_pic == 0 || !want_pic) {
continue;
}
int w,h;
if(im->im_req_width != -1 && im->im_req_height != -1) {
w = im->im_req_width;
h = im->im_req_height;
} else if(im->im_req_width != -1) {
w = im->im_req_width;
h = im->im_req_width * ifv_ctx->height / ifv_ctx->width;
} else if(im->im_req_height != -1) {
w = im->im_req_height * ifv_ctx->width / ifv_ctx->height;
h = im->im_req_height;
} else {
w = im->im_req_width;
h = im->im_req_height;
}
pm = pixmap_create(w, h, PIXMAP_BGR32, 0);
if(pm == NULL) {
ifv_close();
snprintf(errbuf, errlen, "Out of memory");
av_free(frame);
return NULL;
}
struct SwsContext *sws;
sws = sws_getContext(ifv_ctx->width, ifv_ctx->height, ifv_ctx->pix_fmt,
w, h, AV_PIX_FMT_BGR32, SWS_BILINEAR,
NULL, NULL, NULL);
if(sws == NULL) {
ifv_close();
snprintf(errbuf, errlen, "Scaling failed");
pixmap_release(pm);
av_free(frame);
return NULL;
}
uint8_t *ptr[4] = {0,0,0,0};
int strides[4] = {0,0,0,0};
ptr[0] = pm->pm_pixels;
strides[0] = pm->pm_linesize;
sws_scale(sws, (const uint8_t **)frame->data, frame->linesize,
0, ifv_ctx->height, ptr, strides);
sws_freeContext(sws);
write_thumb(ifv_ctx, frame, w, h, cacheid, mtime);
break;
}
av_frame_free(&frame);
if(pm == NULL)
snprintf(errbuf, errlen, "Frame not found (scanned %d)",
MAX_FRAME_SCAN - cnt);
avcodec_flush_buffers(ifv_ctx);
callout_arm(&thumb_flush_callout, ifv_autoclose, NULL, 5);
return pm;
}
static void
polygon_view_draw (PolygonView *self, cairo_t *cr)
{
polygon_t *polygon;
gdouble sf_x, sf_y, sf;
gdouble mid, dim;
gdouble x0, y0;
box_t extents;
extents = self->extents;
mid = (extents.p2.x + extents.p1.x) / 2.;
dim = (extents.p2.x - extents.p1.x) / 2. * 1.25;
sf_x = self->widget.allocation.width / dim / 2;
mid = (extents.p2.y + extents.p1.y) / 2.;
dim = (extents.p2.y - extents.p1.y) / 2. * 1.25;
sf_y = self->widget.allocation.height / dim / 2;
sf = MIN (sf_x, sf_y);
mid = (extents.p2.x + extents.p1.x) / 2.;
dim = sf_x / sf * (extents.p2.x - extents.p1.x) / 2. * 1.25;
x0 = mid - dim;
mid = (extents.p2.y + extents.p1.y) / 2.;
dim = sf_y / sf * (extents.p2.y - extents.p1.y) / 2. * 1.25;
y0 = mid - dim;
if (self->pixmap_width != self->widget.allocation.width ||
self->pixmap_height != self->widget.allocation.height)
{
cairo_surface_destroy (self->pixmap);
self->pixmap = pixmap_create (self, cairo_get_target (cr));
self->pixmap_width = self->widget.allocation.width;
self->pixmap_height = self->widget.allocation.height;
}
cairo_set_source_surface (cr, self->pixmap, 0, 0);
cairo_paint (cr);
if (self->polygons == NULL)
return;
/* draw a zoom view of the area around the mouse */
if (1) {
double zoom = self->mag_zoom;
int size = self->mag_size;
int mag_x = self->mag_x;
int mag_y = self->mag_y;
if (1) {
if (self->px + size < self->widget.allocation.width/2)
mag_x = self->px + size/4;
else
mag_x = self->px - size/4 - size;
mag_y = self->py - size/2;
if (mag_y < 0)
mag_y = 0;
if (mag_y + size > self->widget.allocation.height)
mag_y = self->widget.allocation.height - size;
}
cairo_save (cr); {
/* bottom right */
cairo_rectangle (cr, mag_x, mag_y, size, size);
cairo_stroke_preserve (cr);
cairo_set_source_rgb (cr, 1, 1, 1);
cairo_fill_preserve (cr);
cairo_clip (cr);
/* compute roi in extents */
cairo_translate (cr, mag_x + size/2, mag_y + size/2);
cairo_save (cr); {
cairo_scale (cr, zoom, zoom);
cairo_translate (cr, -(self->px / sf + x0), -(self->py /sf + y0));
for (polygon = self->polygons; polygon; polygon = polygon->next) {
if (polygon->num_edges == 0)
continue;
draw_polygon (cr, polygon, zoom);
}
if (highlight != -1) {
cairo_move_to (cr, extents.p1.x, highlight);
cairo_line_to (cr, extents.p2.x, highlight);
cairo_set_source_rgb (cr, 0, .7, 0);
cairo_save (cr);
cairo_identity_matrix (cr);
cairo_set_line_width (cr, 1.);
cairo_stroke (cr);
cairo_restore (cr);
}
} cairo_restore (cr);
/* grid */
cairo_save (cr); {
int i;
cairo_translate (cr,
-zoom*fmod (self->px/sf + x0, 1.),
-zoom*fmod (self->py/sf + y0, 1.));
zoom /= 2;
for (i = -size/2/zoom; i <= size/2/zoom + 1; i+=2) {
cairo_move_to (cr, zoom*i, -size/2);
cairo_line_to (cr, zoom*i, size/2 + zoom);
cairo_move_to (cr, -size/2, zoom*i);
cairo_line_to (cr, size/2 + zoom, zoom*i);
}
zoom *= 2;
cairo_set_source_rgba (cr, .7, .7, .7, .5);
cairo_set_line_width (cr, 1.);
cairo_stroke (cr);
for (i = -size/2/zoom - 1; i <= size/2/zoom + 1; i++) {
cairo_move_to (cr, zoom*i, -size/2);
cairo_line_to (cr, zoom*i, size/2 + zoom);
cairo_move_to (cr, -size/2, zoom*i);
cairo_line_to (cr, size/2 + zoom, zoom*i);
}
cairo_set_source_rgba (cr, .1, .1, .1, .5);
cairo_set_line_width (cr, 2.);
cairo_stroke (cr);
} cairo_restore (cr);
} cairo_restore (cr);
}
}
bool bbruntime_create(){
if( blitz_create() ){
if( hook_create() ){
if( event_create() ){
if( math_create() ){
if( string_create() ){
if( stdio_create() ){
if( stream_create() ){
if( sockets_create() ){
if( enet_create() ){
if( runtime_create() ){
if( system_create() ){
if( bank_create() ){
if( system_windows_create() ){
if( filesystem_create() ){
if( filesystem_windows_create() ){
if( timer_windows_create() ){
if( input_create() ){
if( input_directinput8_create() ){
if( audio_create() ){
if( audio_fmod_create() ){
if( userlibs_create() ){
if( pixmap_create() ){
if( blitz2d_create() ){
if( graphics_create() ){
if( runtime_glfw3_create() ){
return true;
}else sue( "runtime_glfw3_create failed" );
graphics_destroy();
}else sue( "graphics_create failed" );
blitz2d_destroy();
}else sue( "blitz2d_create failed" );
pixmap_destroy();
}else sue( "pixmap_create failed" );
userlibs_destroy();
}else sue( "userlibs_create failed" );
audio_fmod_destroy();
}else sue( "audio_fmod_create failed" );
audio_destroy();
}else sue( "audio_create failed" );
input_directinput8_destroy();
}else sue( "input_directinput8_create failed" );
input_destroy();
}else sue( "input_create failed" );
timer_windows_destroy();
}else sue( "timer_windows_create failed" );
filesystem_windows_destroy();
}else sue( "filesystem_windows_create failed" );
filesystem_destroy();
}else sue( "filesystem_create failed" );
system_windows_destroy();
}else sue( "system_windows_create failed" );
bank_destroy();
}else sue( "bank_create failed" );
system_destroy();
}else sue( "system_create failed" );
runtime_destroy();
}else sue( "runtime_create failed" );
enet_destroy();
}else sue( "enet_create failed" );
sockets_destroy();
}else sue( "sockets_create failed" );
stream_destroy();
}else sue( "stream_create failed" );
stdio_destroy();
}else sue( "stdio_create failed" );
string_destroy();
}else sue( "string_create failed" );
math_destroy();
}else sue( "math_create failed" );
event_destroy();
}else sue( "event_create failed" );
hook_destroy();
}else sue( "hook_create failed" );
blitz_destroy();
}else sue( "blitz_create failed" );
return false;
}
/**
* Decode subtitles from LAVC
*/
static void
video_subtitles_lavc(video_decoder_t *vd, media_buf_t *mb,
AVCodecContext *ctx)
{
AVSubtitle sub;
int size = 0, i, x, y;
video_overlay_t *vo;
AVPacket avpkt;
av_init_packet(&avpkt);
avpkt.data = mb->mb_data;
avpkt.size = mb->mb_size;
if(avcodec_decode_subtitle2(ctx, &sub, &size, &avpkt) < 1 || size < 1)
return;
if(sub.num_rects == 0) {
// Flush screen
vo = calloc(1, sizeof(video_overlay_t));
vo->vo_type = VO_TIMED_FLUSH;
vo->vo_start = mb->mb_pts + sub.start_display_time * 1000;
video_overlay_enqueue(vd, vo);
return;
}
for(i = 0; i < sub.num_rects; i++) {
AVSubtitleRect *r = sub.rects[i];
switch(r->type) {
case SUBTITLE_BITMAP:
vo = calloc(1, sizeof(video_overlay_t));
vo->vo_start = mb->mb_pts + sub.start_display_time * 1000;
vo->vo_stop = mb->mb_pts + sub.end_display_time * 1000;
vo->vo_x = r->x;
vo->vo_y = r->y;
vo->vo_pixmap = pixmap_create(r->w, r->h, PIX_FMT_BGR32, 1);
const uint8_t *src = r->pict.data[0];
const uint32_t *clut = (uint32_t *)r->pict.data[1];
uint32_t *dst = (uint32_t *)vo->vo_pixmap->pm_pixels;
for(y = 0; y < r->h; y++) {
for(x = 0; x < r->w; x++) {
*dst++ = clut[src[x]];
}
src += r->pict.linesize[0];
}
video_overlay_enqueue(vd, vo);
break;
case SUBTITLE_ASS:
sub_ass_render(vd, r->ass,
ctx->subtitle_header, ctx->subtitle_header_size);
break;
default:
break;
}
}
}
static image_t *
fa_image_from_video2(const char *url, const image_meta_t *im,
const char *cacheid, char *errbuf, size_t errlen,
int sec, time_t mtime, cancellable_t *c)
{
image_t *img = NULL;
if(ifv_url == NULL || strcmp(url, ifv_url)) {
// Need to open
int i;
AVFormatContext *fctx;
fa_handle_t *fh = fa_open_ex(url, errbuf, errlen, FA_BUFFERED_BIG, NULL);
if(fh == NULL)
return NULL;
AVIOContext *avio = fa_libav_reopen(fh, 0);
if((fctx = fa_libav_open_format(avio, url, NULL, 0, NULL, 0, 0,
0)) == NULL) {
fa_libav_close(avio);
snprintf(errbuf, errlen, "Unable to open format");
return NULL;
}
if(!strcmp(fctx->iformat->name, "avi"))
fctx->flags |= AVFMT_FLAG_GENPTS;
AVCodecContext *ctx = NULL;
int vstream = 0;
for(i = 0; i < fctx->nb_streams; i++) {
AVStream *st = fctx->streams[i];
AVCodecContext *c = st->codec;
AVDictionaryEntry *mt;
if(c == NULL)
continue;
switch(c->codec_type) {
case AVMEDIA_TYPE_VIDEO:
if(ctx == NULL) {
vstream = i;
ctx = fctx->streams[i]->codec;
}
break;
case AVMEDIA_TYPE_ATTACHMENT:
mt = av_dict_get(st->metadata, "mimetype", NULL, AV_DICT_IGNORE_SUFFIX);
if(sec == -1 && mt != NULL &&
(!strcmp(mt->value, "image/jpeg") ||
!strcmp(mt->value, "image/png"))) {
int64_t offset = st->attached_offset;
int size = st->attached_size;
fa_libav_close_format(fctx);
return thumb_from_attachment(url, offset, size, errbuf, errlen,
cacheid, mtime);
}
break;
default:
break;
}
}
if(ctx == NULL) {
fa_libav_close_format(fctx);
return NULL;
}
AVCodec *codec = avcodec_find_decoder(ctx->codec_id);
if(codec == NULL) {
fa_libav_close_format(fctx);
snprintf(errbuf, errlen, "Unable to find codec");
return NULL;
}
if(avcodec_open2(ctx, codec, NULL) < 0) {
fa_libav_close_format(fctx);
snprintf(errbuf, errlen, "Unable to open codec");
return NULL;
}
ifv_close();
ifv_stream = vstream;
ifv_url = strdup(url);
ifv_fctx = fctx;
ifv_ctx = ctx;
}
AVPacket pkt;
AVFrame *frame = av_frame_alloc();
int got_pic;
#define MAX_FRAME_SCAN 500
int cnt = MAX_FRAME_SCAN;
AVStream *st = ifv_fctx->streams[ifv_stream];
if(sec == -1) {
// Automatically try to find a good frame
int duration_in_seconds = ifv_fctx->duration / 1000000;
sec = MAX(1, duration_in_seconds * 0.05); // 5% of duration
sec = MIN(sec, 150); // , buy no longer than 2:30 in
sec = MAX(0, MIN(sec, duration_in_seconds - 1));
cnt = 1;
}
int64_t ts = av_rescale(sec, st->time_base.den, st->time_base.num);
int delayed_seek = 0;
if(ifv_ctx->codec_id == AV_CODEC_ID_RV40 ||
ifv_ctx->codec_id == AV_CODEC_ID_RV30) {
// Must decode one frame
delayed_seek = 1;
} else {
if(av_seek_frame(ifv_fctx, ifv_stream, ts, AVSEEK_FLAG_BACKWARD) < 0) {
ifv_close();
snprintf(errbuf, errlen, "Unable to seek to %"PRId64, ts);
return NULL;
}
}
avcodec_flush_buffers(ifv_ctx);
while(1) {
int r;
r = av_read_frame(ifv_fctx, &pkt);
if(r == AVERROR(EAGAIN))
continue;
if(r == AVERROR_EOF)
break;
if(cancellable_is_cancelled(c)) {
snprintf(errbuf, errlen, "Cancelled");
av_free_packet(&pkt);
break;
}
if(r != 0) {
ifv_close();
break;
}
if(pkt.stream_index != ifv_stream) {
av_free_packet(&pkt);
continue;
}
cnt--;
int want_pic = pkt.pts >= ts || cnt <= 0;
ifv_ctx->skip_frame = want_pic ? AVDISCARD_DEFAULT : AVDISCARD_NONREF;
avcodec_decode_video2(ifv_ctx, frame, &got_pic, &pkt);
av_free_packet(&pkt);
if(delayed_seek) {
delayed_seek = 0;
if(av_seek_frame(ifv_fctx, ifv_stream, ts, AVSEEK_FLAG_BACKWARD) < 0) {
ifv_close();
break;
}
continue;
}
if(got_pic == 0 || !want_pic) {
continue;
}
int w,h;
if(im->im_req_width != -1 && im->im_req_height != -1) {
w = im->im_req_width;
h = im->im_req_height;
} else if(im->im_req_width != -1) {
w = im->im_req_width;
h = im->im_req_width * ifv_ctx->height / ifv_ctx->width;
} else if(im->im_req_height != -1) {
w = im->im_req_height * ifv_ctx->width / ifv_ctx->height;
h = im->im_req_height;
} else {
w = im->im_req_width;
h = im->im_req_height;
}
pixmap_t *pm = pixmap_create(w, h, PIXMAP_BGR32, 0);
if(pm == NULL) {
ifv_close();
snprintf(errbuf, errlen, "Out of memory");
av_free(frame);
return NULL;
}
struct SwsContext *sws;
sws = sws_getContext(ifv_ctx->width, ifv_ctx->height, ifv_ctx->pix_fmt,
w, h, AV_PIX_FMT_BGR32, SWS_BILINEAR,
NULL, NULL, NULL);
if(sws == NULL) {
ifv_close();
snprintf(errbuf, errlen, "Scaling failed");
pixmap_release(pm);
av_free(frame);
return NULL;
}
uint8_t *ptr[4] = {0,0,0,0};
int strides[4] = {0,0,0,0};
ptr[0] = pm->pm_data;
strides[0] = pm->pm_linesize;
sws_scale(sws, (const uint8_t **)frame->data, frame->linesize,
0, ifv_ctx->height, ptr, strides);
sws_freeContext(sws);
write_thumb(ifv_ctx, frame, w, h, cacheid, mtime);
img = image_create_from_pixmap(pm);
pixmap_release(pm);
break;
}
av_frame_free(&frame);
if(img == NULL)
snprintf(errbuf, errlen, "Frame not found (scanned %d)",
MAX_FRAME_SCAN - cnt);
if(ifv_ctx != NULL) {
avcodec_flush_buffers(ifv_ctx);
callout_arm(&thumb_flush_callout, ifv_autoclose, NULL, 5);
}
return img;
}
static pixmap_t *
fa_image_from_video2(const char *url, const image_meta_t *im,
const char *cacheid, char *errbuf, size_t errlen,
int sec, time_t mtime, fa_load_cb_t *cb, void *opaque)
{
pixmap_t *pm = NULL;
if(ifv_url == NULL || strcmp(url, ifv_url)) {
// Need to open
int i;
AVFormatContext *fctx;
fa_handle_t *fh = fa_open_ex(url, errbuf, errlen, FA_BUFFERED_BIG, NULL);
if(fh == NULL)
return NULL;
AVIOContext *avio = fa_libav_reopen(fh);
if((fctx = fa_libav_open_format(avio, url, NULL, 0, NULL)) == NULL) {
fa_libav_close(avio);
snprintf(errbuf, errlen, "Unable to open format");
return NULL;
}
if(!strcmp(fctx->iformat->name, "avi"))
fctx->flags |= AVFMT_FLAG_GENPTS;
AVCodecContext *ctx = NULL;
for(i = 0; i < fctx->nb_streams; i++) {
if(fctx->streams[i]->codec != NULL &&
fctx->streams[i]->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
ctx = fctx->streams[i]->codec;
break;
}
}
if(ctx == NULL) {
fa_libav_close_format(fctx);
return NULL;
}
AVCodec *codec = avcodec_find_decoder(ctx->codec_id);
if(codec == NULL) {
fa_libav_close_format(fctx);
snprintf(errbuf, errlen, "Unable to find codec");
return NULL;
}
if(avcodec_open(ctx, codec) < 0) {
fa_libav_close_format(fctx);
snprintf(errbuf, errlen, "Unable to open codec");
return NULL;
}
ifv_close();
ifv_stream = i;
ifv_url = strdup(url);
ifv_fctx = fctx;
ifv_ctx = ctx;
}
AVPacket pkt;
AVFrame *frame = avcodec_alloc_frame();
int got_pic;
AVStream *st = ifv_fctx->streams[ifv_stream];
int64_t ts = av_rescale(sec, st->time_base.den, st->time_base.num);
if(av_seek_frame(ifv_fctx, ifv_stream, ts, AVSEEK_FLAG_BACKWARD) < 0) {
ifv_close();
snprintf(errbuf, errlen, "Unable to seek to %"PRId64, ts);
return NULL;
}
avcodec_flush_buffers(ifv_ctx);
#define MAX_FRAME_SCAN 500
int cnt = MAX_FRAME_SCAN;
while(1) {
int r;
r = av_read_frame(ifv_fctx, &pkt);
if(r == AVERROR(EAGAIN))
continue;
if(r == AVERROR_EOF) {
break;
}
if(cb != NULL && cb(opaque, 0, 1)) {
snprintf(errbuf, errlen, "Aborted");
break;
}
if(r != 0) {
ifv_close();
break;
}
if(pkt.stream_index != ifv_stream) {
av_free_packet(&pkt);
continue;
}
cnt--;
int want_pic = pkt.pts >= ts || cnt <= 0;
ifv_ctx->skip_frame = want_pic ? AVDISCARD_DEFAULT : AVDISCARD_NONREF;
avcodec_decode_video2(ifv_ctx, frame, &got_pic, &pkt);
av_free_packet(&pkt);
if(got_pic == 0 || !want_pic) {
continue;
}
int w,h;
if(im->im_req_width != -1 && im->im_req_height != -1) {
w = im->im_req_width;
h = im->im_req_height;
} else if(im->im_req_width != -1) {
w = im->im_req_width;
h = im->im_req_width * ifv_ctx->height / ifv_ctx->width;
} else if(im->im_req_height != -1) {
w = im->im_req_height * ifv_ctx->width / ifv_ctx->height;
h = im->im_req_height;
} else {
w = im->im_req_width;
h = im->im_req_height;
}
pm = pixmap_create(w, h, PIXMAP_RGB24,
#ifdef __PPC__
16
#else
1
#endif
);
if(pm == NULL) {
ifv_close();
snprintf(errbuf, errlen, "Out of memory");
return NULL;
}
struct SwsContext *sws;
sws = sws_getContext(ifv_ctx->width, ifv_ctx->height, ifv_ctx->pix_fmt,
w, h, PIX_FMT_RGB24, SWS_BILINEAR, NULL, NULL, NULL);
if(sws == NULL) {
ifv_close();
snprintf(errbuf, errlen, "Scaling failed");
pixmap_release(pm);
return NULL;
}
uint8_t *ptr[4] = {0,0,0,0};
int strides[4] = {0,0,0,0};
ptr[0] = pm->pm_pixels;
strides[0] = pm->pm_linesize;
sws_scale(sws, (const uint8_t **)frame->data, frame->linesize,
0, ifv_ctx->height, ptr, strides);
sws_freeContext(sws);
if(pngencoder != NULL) {
AVFrame *oframe = avcodec_alloc_frame();
memset(&frame, 0, sizeof(frame));
oframe->data[0] = pm->pm_pixels;
oframe->linesize[0] = pm->pm_linesize;
size_t outputsize = MAX(pm->pm_linesize * h, FF_MIN_BUFFER_SIZE);
void *output = malloc(outputsize);
pngencoder->width = w;
pngencoder->height = h;
pngencoder->pix_fmt = PIX_FMT_RGB24;
r = avcodec_encode_video(pngencoder, output, outputsize, oframe);
if(r > 0)
blobcache_put(cacheid, "videothumb", output, r, INT32_MAX,
NULL, mtime);
free(output);
av_free(oframe);
}
break;
}
av_free(frame);
if(pm == NULL)
snprintf(errbuf, errlen, "Frame not found (scanned %d)",
MAX_FRAME_SCAN - cnt);
return pm;
}
static pixmap_t *
fa_image_from_video2(const char *url0, const image_meta_t *im,
const char *cacheid)
{
pixmap_t *pm = NULL;
char *url = mystrdupa(url0);
char *tim = strchr(url, '#');
*tim++ = 0;
if(ifv_url == NULL || strcmp(url, ifv_url)) {
// Need to open
int i;
AVFormatContext *fctx;
AVIOContext *avio;
if((avio = fa_libav_open(url, 65536, NULL, 0, 0)) == NULL)
return NULL;
if((fctx = fa_libav_open_format(avio, url, NULL, 0, NULL)) == NULL) {
fa_libav_close(avio);
return NULL;
}
if(!strcmp(fctx->iformat->name, "avi"))
fctx->flags |= AVFMT_FLAG_GENPTS;
AVCodecContext *ctx = NULL;
for(i = 0; i < fctx->nb_streams; i++) {
if(fctx->streams[i]->codec != NULL &&
fctx->streams[i]->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
ctx = fctx->streams[i]->codec;
break;
}
}
if(ctx == NULL) {
fa_libav_close_format(fctx);
return NULL;
}
AVCodec *codec = avcodec_find_decoder(ctx->codec_id);
if(codec == NULL) {
fa_libav_close_format(fctx);
return NULL;
}
if(avcodec_open(ctx, codec) < 0) {
fa_libav_close_format(fctx);
return NULL;
}
ifv_close();
ifv_stream = i;
ifv_url = strdup(url);
ifv_fctx = fctx;
ifv_ctx = ctx;
}
AVPacket pkt;
AVFrame *frame = avcodec_alloc_frame();
int got_pic;
int secs = atoi(tim);
AVStream *st = ifv_fctx->streams[ifv_stream];
int64_t ts = av_rescale(secs, st->time_base.den, st->time_base.num);
if(av_seek_frame(ifv_fctx, ifv_stream, ts, AVSEEK_FLAG_BACKWARD) < 0) {
ifv_close();
return NULL;
}
avcodec_flush_buffers(ifv_ctx);
int cnt = 500;
while(1) {
int r;
r = av_read_frame(ifv_fctx, &pkt);
if(r == AVERROR(EAGAIN))
continue;
if(r == AVERROR_EOF)
break;
if(r != 0) {
ifv_close();
break;
}
if(pkt.stream_index != ifv_stream) {
av_free_packet(&pkt);
continue;
}
cnt--;
int want_pic = pkt.pts >= ts || cnt <= 0;
ifv_ctx->skip_frame = want_pic ? AVDISCARD_DEFAULT : AVDISCARD_NONREF;
avcodec_decode_video2(ifv_ctx, frame, &got_pic, &pkt);
if(got_pic == 0 || !want_pic)
continue;
int w,h;
if(im->req_width != -1 && im->req_height != -1) {
w = im->req_width;
h = im->req_height;
} else if(im->req_width != -1) {
w = im->req_width;
h = im->req_width * ifv_ctx->height / ifv_ctx->width;
} else if(im->req_height != -1) {
w = im->req_height * ifv_ctx->width / ifv_ctx->height;
h = im->req_height;
} else {
w = im->req_width;
h = im->req_height;
}
pm = pixmap_create(w, h, PIX_FMT_RGB24);
struct SwsContext *sws;
sws = sws_getContext(ifv_ctx->width, ifv_ctx->height, ifv_ctx->pix_fmt,
w, h, PIX_FMT_RGB24, SWS_LANCZOS, NULL, NULL, NULL);
if(sws == NULL) {
ifv_close();
return NULL;
}
uint8_t *ptr[4] = {0,0,0,0};
int strides[4] = {0,0,0,0};
ptr[0] = pm->pm_pixels;
strides[0] = pm->pm_linesize;
sws_scale(sws, (const uint8_t **)frame->data, frame->linesize,
0, ifv_ctx->height, ptr, strides);
sws_freeContext(sws);
if(pngencoder != NULL) {
AVFrame *oframe = avcodec_alloc_frame();
memset(&frame, 0, sizeof(frame));
oframe->data[0] = pm->pm_pixels;
oframe->linesize[0] = pm->pm_linesize;
size_t outputsize = pm->pm_linesize * h;
void *output = malloc(outputsize);
pngencoder->width = w;
pngencoder->height = h;
pngencoder->pix_fmt = PIX_FMT_RGB24;
r = avcodec_encode_video(pngencoder, output, outputsize, oframe);
if(r > 0)
blobcache_put(cacheid, "videothumb", output, outputsize, 86400 * 5);
free(output);
av_free(oframe);
}
break;
}
av_free(frame);
return pm;
}
/**
* Decode subtitles from LAVC
*/
static void
video_subtitles_lavc(media_pipe_t *mp, media_buf_t *mb,
AVCodecContext *ctx)
{
AVSubtitle sub;
int got_sub = 0, i, x, y;
video_overlay_t *vo;
AVPacket avpkt;
av_init_packet(&avpkt);
avpkt.data = mb->mb_data;
avpkt.size = mb->mb_size;
if(avcodec_decode_subtitle2(ctx, &sub, &got_sub, &avpkt) < 1 || !got_sub)
return;
if(sub.num_rects == 0) {
// Flush screen
vo = calloc(1, sizeof(video_overlay_t));
vo->vo_type = VO_TIMED_FLUSH;
vo->vo_start = mb->mb_pts + sub.start_display_time * 1000;
video_overlay_enqueue(mp, vo);
} else {
for(i = 0; i < sub.num_rects; i++) {
AVSubtitleRect *r = sub.rects[i];
switch(r->type) {
case SUBTITLE_BITMAP:
vo = calloc(1, sizeof(video_overlay_t));
vo->vo_start = mb->mb_pts + sub.start_display_time * 1000;
vo->vo_stop = mb->mb_pts + sub.end_display_time * 1000;
vo->vo_canvas_width = ctx->width;
vo->vo_canvas_height = ctx->height;
vo->vo_x = r->x;
vo->vo_y = r->y;
vo->vo_pixmap = pixmap_create(r->w, r->h, PIXMAP_BGR32, 0);
if(vo->vo_pixmap == NULL) {
free(vo);
break;
}
const uint8_t *src = r->pict.data[0];
const uint32_t *clut = (uint32_t *)r->pict.data[1];
for(y = 0; y < r->h; y++) {
uint32_t *dst = (uint32_t *)(vo->vo_pixmap->pm_pixels +
y * vo->vo_pixmap->pm_linesize);
for(x = 0; x < r->w; x++)
*dst++ = clut[src[x]];
src += r->pict.linesize[0];
}
video_overlay_enqueue(mp, vo);
break;
case SUBTITLE_ASS:
sub_ass_render(mp, r->ass,
ctx->subtitle_header, ctx->subtitle_header_size,
mb->mb_font_context);
break;
default:
break;
}
}
}
avsubtitle_free(&sub);
}