/**
* Find the end of the current frame in the bitstream.
* @return the position of the first byte of the next frame, or -1
*/
static int dca_find_frame_end(DCAParseContext *pc1, const uint8_t *buf,
int buf_size)
{
int start_found, i;
uint64_t state;
ParseContext *pc = &pc1->pc;
start_found = pc->frame_start_found;
state = pc->state64;
i = 0;
if (!start_found) {
for (i = 0; i < buf_size; i++) {
state = (state << 8) | buf[i];
if (IS_MARKER(state)) {
if (!pc1->lastmarker ||
pc1->lastmarker == CORE_MARKER(state) ||
pc1->lastmarker == DCA_SYNCWORD_SUBSTREAM) {
start_found = 1;
if (IS_EXSS_MARKER(state))
pc1->lastmarker = EXSS_MARKER(state);
else
pc1->lastmarker = CORE_MARKER(state);
i++;
break;
}
}
}
}
if (start_found) {
for (; i < buf_size; i++) {
pc1->size++;
state = (state << 8) | buf[i];
if (IS_MARKER(state) &&
(pc1->lastmarker == CORE_MARKER(state) ||
pc1->lastmarker == DCA_SYNCWORD_SUBSTREAM)) {
if (pc1->framesize > pc1->size)
continue;
pc->frame_start_found = 0;
pc->state64 = -1;
pc1->size = 0;
return IS_EXSS_MARKER(state) ? i - 3 : i - 5;
}
}
}
pc->frame_start_found = start_found;
pc->state64 = state;
return END_NOT_FOUND;
}
/**
* finds the end of the current frame in the bitstream.
* @return the position of the first byte of the next frame, or -1
*/
static int dca_find_frame_end(DCAParseContext * pc1, const uint8_t * buf,
int buf_size)
{
int start_found, i;
uint32_t state;
ParseContext *pc = &pc1->pc;
start_found = pc->frame_start_found;
state = pc->state;
i = 0;
if (!start_found) {
for (i = 0; i < buf_size; i++) {
state = (state << 8) | buf[i];
if (IS_MARKER(state, i, buf, buf_size)) {
if (pc1->lastmarker && state == pc1->lastmarker) {
start_found = 1;
break;
} else if (!pc1->lastmarker) {
start_found = 1;
pc1->lastmarker = state;
break;
}
}
}
}
if (start_found) {
for (; i < buf_size; i++) {
pc1->size++;
state = (state << 8) | buf[i];
if (state == DCA_HD_MARKER && !pc1->hd_pos)
pc1->hd_pos = pc1->size;
if (state == pc1->lastmarker && IS_MARKER(state, i, buf, buf_size)) {
if(pc1->framesize > pc1->size)
continue;
if(!pc1->framesize){
pc1->framesize = pc1->hd_pos ? pc1->hd_pos : pc1->size;
}
pc->frame_start_found = 0;
pc->state = -1;
pc1->size = 0;
return i - 3;
}
}
}
pc->frame_start_found = start_found;
pc->state = state;
return END_NOT_FOUND;
}
static int extract_extradata_vc1(AVBSFContext *ctx, AVPacket *pkt,
uint8_t **data, int *size)
{
ExtractExtradataContext *s = ctx->priv_data;
const uint8_t *ptr = pkt->data, *end = pkt->data + pkt->size;
uint32_t state = UINT32_MAX;
int has_extradata = 0, extradata_size = 0;
while (ptr < end) {
ptr = avpriv_find_start_code(ptr, end, &state);
if (state == VC1_CODE_SEQHDR || state == VC1_CODE_ENTRYPOINT) {
has_extradata = 1;
} else if (has_extradata && IS_MARKER(state)) {
extradata_size = ptr - 4 - pkt->data;
break;
}
}
if (extradata_size) {
*data = av_malloc(extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
if (!*data)
return AVERROR(ENOMEM);
memcpy(*data, pkt->data, extradata_size);
*size = extradata_size;
if (s->remove) {
pkt->data += extradata_size;
pkt->size -= extradata_size;
}
}
return 0;
}
/**
* finds the end of the current frame in the bitstream.
* @return the position of the first byte of the next frame, or -1
*/
static int dca_find_frame_end(DCAParseContext * pc1, const uint8_t * buf,
int buf_size)
{
int start_found, i;
uint32_t state;
ParseContext *pc = &pc1->pc;
start_found = pc->frame_start_found;
state = pc->state;
i = 0;
if (!start_found) {
for (i = 0; i < buf_size; i++) {
state = (state << 8) | buf[i];
if (IS_MARKER(state, i, buf, buf_size)) {
if (!pc1->lastmarker || state == pc1->lastmarker || pc1->lastmarker == DCA_HD_MARKER) {
start_found = 1;
pc1->lastmarker = state;
break;
}
}
}
}
if (start_found) {
for (; i < buf_size; i++) {
pc1->size++;
state = (state << 8) | buf[i];
if (state == DCA_HD_MARKER && !pc1->hd_pos)
pc1->hd_pos = pc1->size;
if (IS_MARKER(state, i, buf, buf_size) && (state == pc1->lastmarker || pc1->lastmarker == DCA_HD_MARKER)) {
if(pc1->framesize > pc1->size)
continue;
// We have to check that we really read a full frame here, and that it isn't a pure HD frame, because their size is not constant.
if(!pc1->framesize && state == pc1->lastmarker && state != DCA_HD_MARKER){
pc1->framesize = pc1->hd_pos ? pc1->hd_pos : pc1->size;
}
pc->frame_start_found = 0;
pc->state = -1;
pc1->size = 0;
return i - 3;
}
}
}
pc->frame_start_found = start_found;
pc->state = state;
return END_NOT_FOUND;
}
CMarker* lua_tomarker ( lua_State* luaVM, int iArgument )
{
CElement* pElement = lua_toelement ( luaVM, iArgument );
if ( pElement && IS_MARKER ( pElement ) )
return static_cast < CMarker* > ( pElement );
else
return NULL;
}
/** Find VC-1 marker in buffer
* @return position where next marker starts or end of buffer if no marker found
*/
static inline const uint8_t* find_next_marker(const uint8_t *src, const uint8_t *end)
{
uint32_t mrk = 0xFFFFFFFF;
if(end-src < 4) return end;
while(src < end){
mrk = (mrk << 8) | *src++;
if(IS_MARKER(mrk))
return src-4;
}
return end;
}
static int vc1_split(AVCodecContext *avctx,
const uint8_t *buf, int buf_size)
{
uint32_t state = -1;
int charged = 0;
const uint8_t *ptr = buf, *end = buf + buf_size;
while (ptr < end) {
ptr = avpriv_find_start_code(ptr, end, &state);
if (state == VC1_CODE_SEQHDR || state == VC1_CODE_ENTRYPOINT) {
charged = 1;
} else if (charged && IS_MARKER(state))
return ptr - 4 - buf;
}
return 0;
}
/**
* finds the end of the current frame in the bitstream.
* @return the position of the first byte of the next frame, or -1
*/
static int vc1_find_frame_end(ParseContext *pc, const uint8_t *buf,
int buf_size)
{
int pic_found, i;
uint32_t state;
pic_found= pc->frame_start_found;
state= pc->state;
i=0;
if(!pic_found)
{
for(i=0; i<buf_size; i++)
{
state= (state<<8) | buf[i];
if(state == VC1_CODE_FRAME || state == VC1_CODE_FIELD)
{
i++;
pic_found=1;
break;
}
}
}
if(pic_found)
{
/* EOF considered as end of frame */
if (buf_size == 0)
return 0;
for(; i<buf_size; i++)
{
state= (state<<8) | buf[i];
if(IS_MARKER(state) && state != VC1_CODE_FIELD && state != VC1_CODE_SLICE)
{
pc->frame_start_found=0;
pc->state=-1;
return i-3;
}
}
}
pc->frame_start_found= pic_found;
pc->state= state;
return END_NOT_FOUND;
}
static int vc1_split(AVCodecContext *avctx,
const uint8_t *buf, int buf_size)
{
int i;
uint32_t state= -1;
int charged=0;
for(i=0; i<buf_size; i++){
state= (state<<8) | buf[i];
if(IS_MARKER(state)){
if(state == VC1_CODE_SEQHDR || state == VC1_CODE_ENTRYPOINT){
charged=1;
}else if(charged){
return i-3;
}
}
}
return 0;
}
static int vaapi_vc1_decode_slice(AVCodecContext *avctx, const uint8_t *buffer, uint32_t size)
{
VC1Context * const v = avctx->priv_data;
MpegEncContext * const s = &v->s;
VASliceParameterBufferVC1 *slice_param;
av_dlog(avctx, "vaapi_vc1_decode_slice(): buffer %p, size %d\n", buffer, size);
/* Current bit buffer is beyond any marker for VC-1, so skip it */
if (avctx->codec_id == AV_CODEC_ID_VC1 && IS_MARKER(AV_RB32(buffer))) {
buffer += 4;
size -= 4;
}
/* Fill in VASliceParameterBufferVC1 */
slice_param = (VASliceParameterBufferVC1 *)ff_vaapi_alloc_slice(avctx->hwaccel_context, buffer, size);
if (!slice_param)
return -1;
slice_param->macroblock_offset = get_bits_count(&s->gb);
slice_param->slice_vertical_position = s->mb_y;
return 0;
}
static int extract_extradata_vc1(AVBSFContext *ctx, AVPacket *pkt,
uint8_t **data, int *size)
{
ExtractExtradataContext *s = ctx->priv_data;
uint32_t state = UINT32_MAX;
int has_extradata = 0, extradata_size = 0;
int i;
for (i = 0; i < pkt->size; i++) {
state = (state << 8) | pkt->data[i];
if (IS_MARKER(state)) {
if (state == VC1_CODE_SEQHDR || state == VC1_CODE_ENTRYPOINT) {
has_extradata = 1;
} else if (has_extradata) {
extradata_size = i - 3;
break;
}
}
}
if (extradata_size) {
*data = av_malloc(extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
if (!*data)
return AVERROR(ENOMEM);
memcpy(*data, pkt->data, extradata_size);
memset(*data + extradata_size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
*size = extradata_size;
if (s->remove) {
pkt->data += extradata_size;
pkt->size -= extradata_size;
}
}
return 0;
}
static AVPictureType parse_picture_type(const uint8_t *buf, int buflen, CVC1HeaderParser *vc1Header)
{
AVPictureType pictype = AV_PICTURE_TYPE_NONE;
int skipped = 0;
const BYTE *framestart = buf;
if (IS_MARKER(AV_RB32(buf))) {
framestart = NULL;
const BYTE *start, *end, *next;
next = buf;
for (start = buf, end = buf + buflen; next < end; start = next) {
if (AV_RB32(start) == VC1_CODE_FRAME) {
framestart = start + 4;
break;
}
next = find_next_marker(start + 4, end);
}
}
if (framestart) {
GetBitContext gb;
init_get_bits(&gb, framestart, (buflen - (framestart-buf))*8);
if (vc1Header->hdr.profile == PROFILE_ADVANCED) {
int fcm = PROGRESSIVE;
if (vc1Header->hdr.interlaced)
fcm = decode012(&gb);
if (fcm == ILACE_FIELD) {
int fptype = get_bits(&gb, 3);
pictype = (fptype & 2) ? AV_PICTURE_TYPE_P : AV_PICTURE_TYPE_I;
if (fptype & 4) // B-picture
pictype = (fptype & 2) ? AV_PICTURE_TYPE_BI : AV_PICTURE_TYPE_B;
} else {
switch (get_unary(&gb, 0, 4)) {
case 0:
pictype = AV_PICTURE_TYPE_P;
break;
case 1:
pictype = AV_PICTURE_TYPE_B;
break;
case 2:
pictype = AV_PICTURE_TYPE_I;
break;
case 3:
pictype = AV_PICTURE_TYPE_BI;
break;
case 4:
pictype = AV_PICTURE_TYPE_P; // skipped pic
skipped = 1;
break;
}
}
} else {
if (vc1Header->hdr.finterp)
skip_bits1(&gb);
skip_bits(&gb, 2); // framecnt
if (vc1Header->hdr.rangered)
skip_bits1(&gb);
int pic = get_bits1(&gb);
if (vc1Header->hdr.bframes) {
if (!pic) {
if (get_bits1(&gb)) {
pictype = AV_PICTURE_TYPE_I;
} else {
pictype = AV_PICTURE_TYPE_B;
}
} else {
pictype = AV_PICTURE_TYPE_P;
}
} else {
pictype = pic ? AV_PICTURE_TYPE_P : AV_PICTURE_TYPE_I;
}
}
}
return pictype;
}
STDMETHODIMP CDecWMV9::InitDecoder(AVCodecID codec, const CMediaType *pmt)
{
HRESULT hr = S_OK;
DbgLog((LOG_TRACE, 10, L"CDecWMV9::InitDecoder(): Initializing WMV9 DMO decoder"));
DestroyDecoder(false);
BITMAPINFOHEADER *pBMI = NULL;
REFERENCE_TIME rtAvg = 0;
DWORD dwARX = 0, dwARY = 0;
videoFormatTypeHandler(*pmt, &pBMI, &rtAvg, &dwARX, &dwARY);
size_t extralen = 0;
BYTE *extra = NULL;
getExtraData(*pmt, NULL, &extralen);
if (extralen > 0) {
extra = (BYTE *)av_mallocz(extralen + FF_INPUT_BUFFER_PADDING_SIZE);
getExtraData(*pmt, extra, &extralen);
}
if (codec == AV_CODEC_ID_VC1 && extralen) {
size_t i = 0;
for (i = 0; i < (extralen - 4); i++) {
uint32_t code = AV_RB32(extra+i);
if (IS_MARKER(code))
break;
}
if (i == 0) {
memmove(extra+1, extra, extralen);
*extra = 0;
extralen++;
} else if (i > 1) {
DbgLog((LOG_TRACE, 10, L"-> VC-1 Header at position %u (should be 0 or 1)", i));
}
}
/* Create input type */
GUID subtype = codec == AV_CODEC_ID_VC1 ? MEDIASUBTYPE_WVC1 : MEDIASUBTYPE_WMV3;
m_nCodecId = codec;
mtIn.SetType(&MEDIATYPE_Video);
mtIn.SetSubtype(&subtype);
mtIn.SetFormatType(&FORMAT_VideoInfo);
mtIn.SetTemporalCompression(TRUE);
mtIn.SetSampleSize(0);
mtIn.SetVariableSize();
VIDEOINFOHEADER *vih = (VIDEOINFOHEADER *)mtIn.AllocFormatBuffer((ULONG)(sizeof(VIDEOINFOHEADER) + extralen));
memset(vih, 0, sizeof(VIDEOINFOHEADER));
vih->bmiHeader.biWidth = pBMI->biWidth;
vih->bmiHeader.biHeight = pBMI->biHeight;
vih->bmiHeader.biPlanes = 1;
vih->bmiHeader.biBitCount = 24;
vih->bmiHeader.biSizeImage = pBMI->biWidth * pBMI->biHeight * 3 / 2;
vih->bmiHeader.biSize = (DWORD)(sizeof(BITMAPINFOHEADER) + extralen);
vih->bmiHeader.biCompression = subtype.Data1;
vih->AvgTimePerFrame = rtAvg;
SetRect(&vih->rcSource, 0, 0, pBMI->biWidth, pBMI->biHeight);
vih->rcTarget = vih->rcSource;
if (extralen > 0) {
memcpy((BYTE *)vih + sizeof(VIDEOINFOHEADER), extra, extralen);
av_freep(&extra);
extra = (BYTE *)vih + sizeof(VIDEOINFOHEADER);
}
hr = m_pDMO->SetInputType(0, &mtIn, 0);
if (FAILED(hr)) {
DbgLog((LOG_TRACE, 10, L"-> Failed to set input type on DMO"));
return hr;
}
/* Create output type */
int idx = 0;
while(SUCCEEDED(hr = m_pDMO->GetOutputType(0, idx++, &mtOut))) {
if (mtOut.subtype == MEDIASUBTYPE_NV12) {
hr = m_pDMO->SetOutputType(0, &mtOut, 0);
m_OutPixFmt = LAVPixFmt_NV12;
break;
} else if (mtOut.subtype == MEDIASUBTYPE_YV12) {
hr = m_pDMO->SetOutputType(0, &mtOut, 0);
m_OutPixFmt = LAVPixFmt_YUV420;
break;
}
}
if (FAILED(hr)) {
DbgLog((LOG_TRACE, 10, L"-> Failed to set output type on DMO"));
return hr;
}
videoFormatTypeHandler(mtOut, &pBMI);
m_pRawBufferSize = pBMI->biSizeImage + FF_INPUT_BUFFER_PADDING_SIZE;
m_bInterlaced = FALSE;
memset(&m_StreamAR, 0, sizeof(m_StreamAR));
if (extralen > 0) {
m_vc1Header = new CVC1HeaderParser(extra, extralen, codec);
if (m_vc1Header->hdr.valid) {
m_bInterlaced = m_vc1Header->hdr.interlaced;
m_StreamAR = m_vc1Header->hdr.ar;
}
}
m_bManualReorder = (codec == AV_CODEC_ID_VC1) && !(m_pCallback->GetDecodeFlags() & LAV_VIDEO_DEC_FLAG_VC1_DTS);
return S_OK;
}
static void menu_draw(SDL_Surface *screen, menu_t *p_menu, int sel, int font_size)
{
static SDL_Thread *thread = NULL;
quit_thread = 1;
int font_height = TTF_FontHeight(p_menu->p_font);
int line_height = font_height + font_height/16 +(font_height==24);
int x_start = p_menu->x1+6/RATIO;
int y_start = p_menu->y1 + line_height;
SDL_Rect r;
int entries_visible = (p_menu->y2 - p_menu->y1 -5) / line_height - 1;
int i, y;
SDL_Rect r_ext = {p_menu->x1, p_menu->y1,
p_menu->x2 - p_menu->x1, p_menu->y2 - p_menu->y1+2/RATIO};
SDL_Rect r_int = {p_menu->x1+4/RATIO, p_menu->y1,
p_menu->x2 - p_menu->x1-8/RATIO, p_menu->y2 - p_menu->y1-2/RATIO};
SDL_FillRect(screen, &r_ext, SDL_MapRGB(screen->format, 116, 117, 206));
SDL_BlitSurface(image_window, &r_int, screen, &r_int);
if ( p_menu->n_entries * line_height > p_menu->y2 )
y_start = p_menu->y1 + line_height;
if (p_menu->cur_sel - p_menu->start_entry_visible > entries_visible)
{
while (p_menu->cur_sel - p_menu->start_entry_visible > entries_visible)
{
p_menu->start_entry_visible ++;
if (p_menu->start_entry_visible > p_menu->n_entries)
{
p_menu->start_entry_visible = 0;
break;
}
}
}
else if ( p_menu->cur_sel < p_menu->start_entry_visible )
p_menu->start_entry_visible = p_menu->cur_sel;
if (strlen(p_menu->title))
{
r.x = p_menu->x1;
r.y = p_menu->y1;
r.w = p_menu->x2 - p_menu->x1;
r.h = line_height-1;
if (sel < 0)
SDL_FillRect(screen, &r, SDL_MapRGB(screen->format, 0x40, 0x00, 0x00));
else
SDL_FillRect(screen, &r, SDL_MapRGB(screen->format, 116, 117, 206)); //Title
menu_print_font(screen, 255,255,255, p_menu->x1+4/RATIO, p_menu->y1, p_menu->title, font_size);
}
for (i = p_menu->start_entry_visible; i <= p_menu->start_entry_visible + entries_visible; i++)
{
const char *msg = p_menu->pp_msgs[i];
if (i >= p_menu->n_entries)
break;
if (IS_MARKER(msg))
p_menu->cur_sel = atoi(&msg[1]);
else
{
y = (i - p_menu->start_entry_visible) * line_height;
if (sel < 0)
menu_print_font(screen, 0x40,0x40,0x40,
x_start, y_start + y, msg, font_size);
else if (p_menu->cur_sel == i) /* Selected - color */
{
if (strlen(msg)<=_MAX_STRING) menu_print_font(screen, 0,128,0,
x_start, y_start + y, msg, font_size);
else
{
if (thread) SDL_WaitThread(thread, NULL);
thread_struct.screen=screen;
thread_struct.x=x_start;
thread_struct.y=y_start + y;
thread_struct.msg=msg;
thread_struct.font_size=font_size;
quit_thread=0;
thread = SDL_CreateThread(menu_thread, NULL );
}
}
else if (IS_SUBMENU(msg))
{
if (p_menu->cur_sel == i-1) /* Selected - color */
menu_print_font(screen, 0,128,0,
x_start, y_start + y, msg, font_size);
else
menu_print_font(screen, 20,20,20,
x_start, y_start + y, msg, font_size);
}
else if (msg[0] == '#')
{
switch (msg[1])
{
case '1':
menu_print_font(screen, 116,117,206,
x_start, y_start + y, msg+2, font_size);
break;
case '2':
menu_print_font(screen, 25,0,231,
x_start, y_start + y, msg+2, font_size);
break;
default:
menu_print_font(screen, 0x40,0x40,0x40,
x_start, y_start + y, msg, font_size);
break;
}
}
else //Not selected
menu_print_font(screen, 20,20,20,
x_start, y_start + y, msg, font_size);
if (IS_SUBMENU(msg))
{
submenu_t *p_submenu = find_submenu(p_menu, i);
int n_pipe = 0;
int n;
for (n=0; msg[n] != '\0'; n++)
{
/* Underline the selected entry */
if (msg[n] == '|')
{
int16_t n_chars;
for (n_chars = 1; msg[n+n_chars] && msg[n+n_chars] != '|'; n_chars++);
n_pipe++;
if (p_submenu->sel == n_pipe-1)
{
int w;
int h;
if (TTF_SizeText(p_menu->p_font, "X", &w, &h) < 0)
{
fw = w;
fh = h;
write_log("%s\n", TTF_GetError());
exit(1);
}
r = (SDL_Rect){ x_start + (n+1) * w, y_start + (i+ 1 - p_menu->start_entry_visible) * line_height -3/RATIO, (n_chars - 1) * w, 2};
if (p_menu->cur_sel == i-1)
SDL_FillRect(screen, &r,
SDL_MapRGB(screen->format, 255,0,0));
else
SDL_FillRect(screen, &r,
SDL_MapRGB(screen->format, 20,20,20));
break;
}
}
}
}
}
}
}