Chiebot-Mirror
/
FFmpeg
mirror of https://github.com/FFmpeg/FFmpeg.git
8
0
Fork 0
Code Issues Projects Releases Wiki Activity

Windows Media Image decoder (WMVP/WVP2)

Browse Source 
Signed-off-by: Anton Khirnov <anton@khirnov.net>
pull/2/head
Alberto Delmás 14 years ago committed by Anton Khirnov
parent 3be5a94351
commit 45ecda8554
14 changed files with 431 additions and 85 deletions
Whitespace
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Split View
Diff Options
Show Stats Download Patch File Download Diff File
  1. 1
      Changelog
  2. 2
      configure
  3. 1
      doc/general.texi
  4. 2
      libavcodec/allcodecs.c
  5. 2
      libavcodec/avcodec.h
  6. 2
      libavcodec/h263dec.c
  7. 12
      libavcodec/mpegvideo.c
  8. 3
      libavcodec/vc1.c
  9. 3
      libavcodec/vc1.h
  10. 404
      libavcodec/vc1dec.c
  11. 68
      libavcodec/vc1dsp.c
  12. 10
      libavcodec/vc1dsp.h
  13. 2
      libavcodec/version.h
  14. 4
      libavformat/riff.c

1
Changelog
Unescape View File

@ -41,6 +41,7 @@ easier to use. The changes are:
'-preset <presetname>'.
* -intra option was removed, it's equivalent to -g 0.
- XMV demuxer
- Windows Media Image decoder
version 0.7:

2
configure vendored
Unescape View File

@ -1354,6 +1354,7 @@ vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
vc1_vdpau_decoder_select="vdpau vc1_decoder"
vc1image_decoder_select="vc1_decoder"
vorbis_decoder_select="mdct"
vorbis_encoder_select="mdct"
vp6_decoder_select="huffman"
@ -1374,6 +1375,7 @@ wmv3_decoder_select="vc1_decoder"
wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
wmv3image_decoder_select="wmv3_decoder"
zlib_decoder_select="zlib"
zlib_encoder_select="zlib"
zmbv_decoder_select="zlib"

1
doc/general.texi
Unescape View File

@ -518,6 +518,7 @@ following image formats are supported:
@item VMware Screen Codec / VMware Video @tab @tab X
@tab Codec used in videos captured by VMware.
@item Westwood Studios VQA (Vector Quantized Animation) video @tab @tab X
@item Windows Media Image @tab @tab X
@item Windows Media Video 7 @tab X @tab X
@item Windows Media Video 8 @tab X @tab X
@item Windows Media Video 9 @tab @tab X

2
libavcodec/allcodecs.c
Unescape View File

@ -203,6 +203,7 @@ void avcodec_register_all(void)
REGISTER_DECODER (VB, vb);
REGISTER_DECODER (VC1, vc1);
REGISTER_DECODER (VC1_VDPAU, vc1_vdpau);
REGISTER_DECODER (VC1IMAGE, vc1image);
REGISTER_DECODER (VCR1, vcr1);
REGISTER_DECODER (VMDVIDEO, vmdvideo);
REGISTER_DECODER (VMNC, vmnc);
@ -217,6 +218,7 @@ void avcodec_register_all(void)
REGISTER_ENCDEC (WMV2, wmv2);
REGISTER_DECODER (WMV3, wmv3);
REGISTER_DECODER (WMV3_VDPAU, wmv3_vdpau);
REGISTER_DECODER (WMV3IMAGE, wmv3image);
REGISTER_DECODER (WNV1, wnv1);
REGISTER_DECODER (XAN_WC3, xan_wc3);
REGISTER_DECODER (XAN_WC4, xan_wc4);

2
libavcodec/avcodec.h
Unescape View File

@ -208,6 +208,8 @@ enum CodecID {
CODEC_ID_PRORES,
CODEC_ID_JV,
CODEC_ID_DFA,
CODEC_ID_WMV3IMAGE,
CODEC_ID_VC1IMAGE,
/* various PCM "codecs" */
CODEC_ID_FIRST_AUDIO = 0x10000, ///< A dummy id pointing at the start of audio codecs

2
libavcodec/h263dec.c
Unescape View File

@ -91,6 +91,8 @@ av_cold int ff_h263_decode_init(AVCodecContext *avctx)
break;
case CODEC_ID_VC1:
case CODEC_ID_WMV3:
case CODEC_ID_VC1IMAGE:
case CODEC_ID_WMV3IMAGE:
s->h263_pred = 1;
s->msmpeg4_version=6;
avctx->chroma_sample_location = AVCHROMA_LOC_LEFT;

12
libavcodec/mpegvideo.c
Unescape View File

@ -208,7 +208,12 @@ void ff_copy_picture(Picture *dst, Picture *src){
*/
static void free_frame_buffer(MpegEncContext *s, Picture *pic)
{
ff_thread_release_buffer(s->avctx, (AVFrame*)pic);
/* Windows Media Image codecs allocate internal buffers with different
dimensions; ignore user defined callbacks for these */
if (s->codec_id != CODEC_ID_WMV3IMAGE && s->codec_id != CODEC_ID_VC1IMAGE)
ff_thread_release_buffer(s->avctx, (AVFrame*)pic);
else
avcodec_default_release_buffer(s->avctx, (AVFrame*)pic);
av_freep(&pic->f.hwaccel_picture_private);
}
@ -230,7 +235,10 @@ static int alloc_frame_buffer(MpegEncContext *s, Picture *pic)
}
}
r = ff_thread_get_buffer(s->avctx, (AVFrame*)pic);
if (s->codec_id != CODEC_ID_WMV3IMAGE && s->codec_id != CODEC_ID_VC1IMAGE)
r = ff_thread_get_buffer(s->avctx, (AVFrame*)pic);
else
r = avcodec_default_get_buffer(s->avctx, (AVFrame*)pic);
if (r < 0 || !pic->f.age || !pic->f.type || !pic->f.data[0]) {
av_log(s->avctx, AV_LOG_ERROR, "get_buffer() failed (%d %d %d %p)\n",

3
libavcodec/vc1.c
Unescape View File

@ -314,9 +314,6 @@ int vc1_decode_sequence_header(AVCodecContext *avctx, VC1Context *v, GetBitConte
"Old interlaced mode is not supported\n");
return -1;
}
if (v->res_sprite) {
av_log(avctx, AV_LOG_ERROR, "WMVP is not fully supported\n");
}
}
// (fps-2)/4 (->30)

3
libavcodec/vc1.h
Unescape View File

@ -311,6 +311,9 @@ typedef struct VC1Context{
//@{
int new_sprite;
int two_sprites;
AVFrame sprite_output_frame;
int output_width, output_height, sprite_width, sprite_height;
uint8_t* sr_rows[2][2]; ///< Sprite resizer line cache
//@}
int p_frame_skipped;

404
libavcodec/vc1dec.c
Unescape View File

@ -3278,116 +3278,279 @@ static void vc1_decode_blocks(VC1Context *v)
}
}
static inline float get_float_val(GetBitContext* gb)
#if CONFIG_WMV3IMAGE_DECODER || CONFIG_VC1IMAGE_DECODER
typedef struct {
/**
* Transform coefficients for both sprites in 16.16 fixed point format,
* in the order they appear in the bitstream:
* x scale
* rotation 1 (unused)
* x offset
* rotation 2 (unused)
* y scale
* y offset
* alpha
*/
int coefs[2][7];
int effect_type, effect_flag;
int effect_pcount1, effect_pcount2; ///< amount of effect parameters stored in effect_params
int effect_params1[15], effect_params2[10]; ///< effect parameters in 16.16 fixed point format
} SpriteData;
static inline int get_fp_val(GetBitContext* gb)
{
return (float)get_bits_long(gb, 30) / (1<<15) - (1<<14);
return (get_bits_long(gb, 30) - (1<<29)) << 1;
}
static void vc1_sprite_parse_transform(VC1Context *v, GetBitContext* gb, float c[7])
static void vc1_sprite_parse_transform(GetBitContext* gb, int c[7])
{
c[1] = c[3] = 0.0f;
c[1] = c[3] = 0;
switch (get_bits(gb, 2)) {
case 0:
c[0] = 1.0f;
c[2] = get_float_val(gb);
c[4] = 1.0f;
c[0] = 1<<16;
c[2] = get_fp_val(gb);
c[4] = 1<<16;
break;
case 1:
c[0] = c[4] = get_float_val(gb);
c[2] = get_float_val(gb);
c[0] = c[4] = get_fp_val(gb);
c[2] = get_fp_val(gb);
break;
case 2:
c[0] = get_float_val(gb);
c[2] = get_float_val(gb);
c[4] = get_float_val(gb);
c[0] = get_fp_val(gb);
c[2] = get_fp_val(gb);
c[4] = get_fp_val(gb);
break;
case 3:
av_log_ask_for_sample(v->s.avctx, NULL);
c[0] = get_float_val(gb);
c[1] = get_float_val(gb);
c[2] = get_float_val(gb);
c[3] = get_float_val(gb);
c[4] = get_float_val(gb);
c[0] = get_fp_val(gb);
c[1] = get_fp_val(gb);
c[2] = get_fp_val(gb);
c[3] = get_fp_val(gb);
c[4] = get_fp_val(gb);
break;
}
c[5] = get_float_val(gb);
c[5] = get_fp_val(gb);
if (get_bits1(gb))
c[6] = get_float_val(gb);
c[6] = get_fp_val(gb);
else
c[6] = 1.0f;
c[6] = 1<<16;
}
static void vc1_parse_sprites(VC1Context *v, GetBitContext* gb)
static void vc1_parse_sprites(VC1Context *v, GetBitContext* gb, SpriteData* sd)
{
int effect_type, effect_flag, effect_pcount1, effect_pcount2, i;
float effect_params1[14], effect_params2[10];
float coefs[2][7];
vc1_sprite_parse_transform(v, gb, coefs[0]);
av_log(v->s.avctx, AV_LOG_DEBUG, "S1:");
for (i = 0; i < 7; i++)
av_log(v->s.avctx, AV_LOG_DEBUG, " %.3f", coefs[0][i]);
av_log(v->s.avctx, AV_LOG_DEBUG, "\n");
if (v->two_sprites) {
vc1_sprite_parse_transform(v, gb, coefs[1]);
av_log(v->s.avctx, AV_LOG_DEBUG, "S2:");
AVCodecContext *avctx = v->s.avctx;
int sprite, i;
for (sprite = 0; sprite <= v->two_sprites; sprite++) {
vc1_sprite_parse_transform(gb, sd->coefs[sprite]);
if (sd->coefs[sprite][1] || sd->coefs[sprite][3])
av_log_ask_for_sample(avctx, "Rotation coefficients are not zero");
av_log(avctx, AV_LOG_DEBUG, sprite ? "S2:" : "S1:");
for (i = 0; i < 7; i++)
av_log(v->s.avctx, AV_LOG_DEBUG, " %.3f", coefs[1][i]);
av_log(v->s.avctx, AV_LOG_DEBUG, "\n");
av_log(avctx, AV_LOG_DEBUG, " %d.%.3d",
sd->coefs[sprite][i] / (1<<16),
(abs(sd->coefs[sprite][i]) & 0xFFFF) * 1000 / (1<<16));
av_log(avctx, AV_LOG_DEBUG, "\n");
}
skip_bits(gb, 2);
if (effect_type = get_bits_long(gb, 30)){
switch (effect_pcount1 = get_bits(gb, 4)) {
case 2:
effect_params1[0] = get_float_val(gb);
effect_params1[1] = get_float_val(gb);
break;
if (sd->effect_type = get_bits_long(gb, 30)) {
switch (sd->effect_pcount1 = get_bits(gb, 4)) {
case 7:
vc1_sprite_parse_transform(v, gb, effect_params1);
vc1_sprite_parse_transform(gb, sd->effect_params1);
break;
case 14:
vc1_sprite_parse_transform(v, gb, effect_params1);
vc1_sprite_parse_transform(v, gb, &effect_params1[7]);
vc1_sprite_parse_transform(gb, sd->effect_params1);
vc1_sprite_parse_transform(gb, sd->effect_params1 + 7);
break;
default:
av_log_ask_for_sample(v->s.avctx, NULL);
return;
for (i = 0; i < sd->effect_pcount1; i++)
sd->effect_params1[i] = get_fp_val(gb);
}
if (effect_type != 13 || effect_params1[0] != coefs[0][6]) {
if (sd->effect_type != 13 || sd->effect_params1[0] != sd->coefs[0][6]) {
// effect 13 is simple alpha blending and matches the opacity above
av_log(v->s.avctx, AV_LOG_DEBUG, "Effect: %d; params: ", effect_type);
for (i = 0; i < effect_pcount1; i++)
av_log(v->s.avctx, AV_LOG_DEBUG, " %.3f", effect_params1[i]);
av_log(v->s.avctx, AV_LOG_DEBUG, "\n");
av_log(avctx, AV_LOG_DEBUG, "Effect: %d; params: ", sd->effect_type);
for (i = 0; i < sd->effect_pcount1; i++)
av_log(avctx, AV_LOG_DEBUG, " %d.%.2d",
sd->effect_params1[i] / (1<<16),
(abs(sd->effect_params1[i]) & 0xFFFF) * 1000 / (1<<16));
av_log(avctx, AV_LOG_DEBUG, "\n");
}
effect_pcount2 = get_bits(gb, 16);
if (effect_pcount2 > 10) {
av_log(v->s.avctx, AV_LOG_ERROR, "Too many effect parameters\n");
sd->effect_pcount2 = get_bits(gb, 16);
if (sd->effect_pcount2 > 10) {
av_log(avctx, AV_LOG_ERROR, "Too many effect parameters\n");
return;
} else if (effect_pcount2) {
i = 0;
av_log(v->s.avctx, AV_LOG_DEBUG, "Effect params 2: ");
while (i < effect_pcount2){
effect_params2[i] = get_float_val(gb);
av_log(v->s.avctx, AV_LOG_DEBUG, " %.3f", effect_params2[i]);
i++;
} else if (sd->effect_pcount2) {
i = -1;
av_log(avctx, AV_LOG_DEBUG, "Effect params 2: ");
while (++i < sd->effect_pcount2){
sd->effect_params2[i] = get_fp_val(gb);
av_log(avctx, AV_LOG_DEBUG, " %d.%.2d",
sd->effect_params2[i] / (1<<16),
(abs(sd->effect_params2[i]) & 0xFFFF) * 1000 / (1<<16));
}
av_log(v->s.avctx, AV_LOG_DEBUG, "\n");
av_log(avctx, AV_LOG_DEBUG, "\n");
}
}
if (effect_flag = get_bits1(gb))
av_log(v->s.avctx, AV_LOG_DEBUG, "Effect flag set\n");
if (sd->effect_flag = get_bits1(gb))
av_log(avctx, AV_LOG_DEBUG, "Effect flag set\n");
if (get_bits_count(gb) >= gb->size_in_bits +
(v->s.avctx->codec_id == CODEC_ID_WMV3 ? 64 : 0))
av_log(v->s.avctx, AV_LOG_ERROR, "Buffer overrun\n");
(avctx->codec_id == CODEC_ID_WMV3IMAGE ? 64 : 0))
av_log(avctx, AV_LOG_ERROR, "Buffer overrun\n");
if (get_bits_count(gb) < gb->size_in_bits - 8)
av_log(v->s.avctx, AV_LOG_WARNING, "Buffer not fully read\n");
av_log(avctx, AV_LOG_WARNING, "Buffer not fully read\n");
}
static void vc1_draw_sprites(VC1Context *v, SpriteData* sd)
{
int i, plane, row, sprite;
int sr_cache[2][2] = { { -1, -1 }, { -1, -1 } };
uint8_t* src_h[2][2];
int xoff[2], xadv[2], yoff[2], yadv[2], alpha;
int ysub[2];
MpegEncContext *s = &v->s;
for (i = 0; i < 2; i++) {
xoff[i] = av_clip(sd->coefs[i][2], 0, v->sprite_width-1 << 16);
xadv[i] = sd->coefs[i][0];
if (xadv[i] != 1<<16 || (v->sprite_width<<16) - (v->output_width<<16) - xoff[i])
xadv[i] = av_clip(xadv[i], 0, ((v->sprite_width<<16) - xoff[i] - 1) / v->output_width);
yoff[i] = av_clip(sd->coefs[i][5], 0, v->sprite_height-1 << 16);
yadv[i] = av_clip(sd->coefs[i][4], 0, ((v->sprite_height<<16) - yoff[i]) / v->output_height);
}
alpha = av_clip(sd->coefs[1][6], 0, (1<<16) - 1);
for (plane = 0; plane < (s->flags&CODEC_FLAG_GRAY ? 1 : 3); plane++) {
int width = v->output_width>>!!plane;
for (row = 0; row < v->output_height>>!!plane; row++) {
uint8_t *dst = v->sprite_output_frame.data[plane] +
v->sprite_output_frame.linesize[plane] * row;
for (sprite = 0; sprite <= v->two_sprites; sprite++) {
uint8_t *iplane = s->current_picture.f.data[plane];
int iline = s->current_picture.f.linesize[plane];
int ycoord = yoff[sprite] + yadv[sprite]*row;
int yline = ycoord>>16;
ysub[sprite] = ycoord&0xFFFF;
if (sprite) {
iplane = s->last_picture.f.data[plane];
iline = s->last_picture.f.linesize[plane];
}
if (!(xoff[sprite]&0xFFFF) && xadv[sprite] == 1<<16) {
src_h[sprite][0] = iplane+(xoff[sprite]>>16)+ yline *iline;
if (ysub[sprite])
src_h[sprite][1] = iplane+(xoff[sprite]>>16)+(yline+1)*iline;
} else {
if (sr_cache[sprite][0] != yline) {
if (sr_cache[sprite][1] == yline) {
FFSWAP(uint8_t*, v->sr_rows[sprite][0], v->sr_rows[sprite][1]);
FFSWAP(int, sr_cache[sprite][0], sr_cache[sprite][1]);
} else {
v->vc1dsp.sprite_h(v->sr_rows[sprite][0], iplane+yline*iline, xoff[sprite], xadv[sprite], width);
sr_cache[sprite][0] = yline;
}
}
if (ysub[sprite] && sr_cache[sprite][1] != yline + 1) {
v->vc1dsp.sprite_h(v->sr_rows[sprite][1], iplane+(yline+1)*iline, xoff[sprite], xadv[sprite], width);
sr_cache[sprite][1] = yline + 1;
}
src_h[sprite][0] = v->sr_rows[sprite][0];
src_h[sprite][1] = v->sr_rows[sprite][1];
}
}
if (!v->two_sprites) {
if (ysub[0]) {
v->vc1dsp.sprite_v_single(dst, src_h[0][0], src_h[0][1], ysub[0], width);
} else {
memcpy(dst, src_h[0][0], width);
}
} else {
if (ysub[0] && ysub[1]) {
v->vc1dsp.sprite_v_double_twoscale(dst, src_h[0][0], src_h[0][1], ysub[0],
src_h[1][0], src_h[1][1], ysub[1], alpha, width);
} else if (ysub[0]) {
v->vc1dsp.sprite_v_double_onescale(dst, src_h[0][0], src_h[0][1], ysub[0],
src_h[1][0], alpha, width);
} else if (ysub[1]) {
v->vc1dsp.sprite_v_double_onescale(dst, src_h[1][0], src_h[1][1], ysub[1],
src_h[0][0], (1<<16)-1-alpha, width);
} else {
v->vc1dsp.sprite_v_double_noscale(dst, src_h[0][0], src_h[1][0], alpha, width);
}
}
}
if (!plane) {
for (i = 0; i < 2; i++) {
xoff[i] >>= 1;
yoff[i] >>= 1;
}
}
}
}
static int vc1_decode_sprites(VC1Context *v, GetBitContext* gb)
{
MpegEncContext *s = &v->s;
AVCodecContext *avctx = s->avctx;
SpriteData sd;
vc1_parse_sprites(v, gb, &sd);
if (!s->current_picture.f.data[0]) {
av_log(avctx, AV_LOG_ERROR, "Got no sprites\n");
return -1;
}
if (v->two_sprites && (!s->last_picture_ptr || !s->last_picture.f.data[0])) {
av_log(avctx, AV_LOG_WARNING, "Need two sprites, only got one\n");
v->two_sprites = 0;
}
if (v->sprite_output_frame.data[0])
avctx->release_buffer(avctx, &v->sprite_output_frame);
v->sprite_output_frame.buffer_hints = FF_BUFFER_HINTS_VALID;
v->sprite_output_frame.reference = 0;
if (avctx->get_buffer(avctx, &v->sprite_output_frame) < 0) {
av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
return -1;
}
vc1_draw_sprites(v, &sd);
return 0;
}
static void vc1_sprite_flush(AVCodecContext *avctx)
{
VC1Context *v = avctx->priv_data;
MpegEncContext *s = &v->s;
AVFrame *f = &s->current_picture.f;
int plane, i;
/* Windows Media Image codecs have a convergence interval of two keyframes.
Since we can't enforce it, clear to black the missing sprite. This is
wrong but it looks better than doing nothing. */
if (f->data[0])
for (plane = 0; plane < (s->flags&CODEC_FLAG_GRAY ? 1 : 3); plane++)
for (i = 0; i < v->sprite_height>>!!plane; i++)
memset(f->data[plane]+i*f->linesize[plane],
plane ? 128 : 0, f->linesize[plane]);
}
#endif
/** Initialize a VC1/WMV3 decoder
* @todo TODO: Handle VC-1 IDUs (Transport level?)
* @todo TODO: Decypher remaining bits in extra_data
@ -3399,6 +3562,10 @@ static av_cold int vc1_decode_init(AVCodecContext *avctx)
GetBitContext gb;
int i, cur_width, cur_height;
/* save the container output size for WMImage */
v->output_width = avctx->width;
v->output_height = avctx->height;
if (!avctx->extradata_size || !avctx->extradata) return -1;
if (!(avctx->flags & CODEC_FLAG_GRAY))
avctx->pix_fmt = avctx->get_format(avctx, avctx->codec->pix_fmts);
@ -3420,7 +3587,7 @@ static av_cold int vc1_decode_init(AVCodecContext *avctx)
cur_width = avctx->coded_width = avctx->width;
cur_height = avctx->coded_height = avctx->height;
if (avctx->codec_id == CODEC_ID_WMV3)
if (avctx->codec_id == CODEC_ID_WMV3 || avctx->codec_id == CODEC_ID_WMV3IMAGE)
{
int count = 0;
@ -3562,6 +3729,25 @@ static av_cold int vc1_decode_init(AVCodecContext *avctx)
}
ff_intrax8_common_init(&v->x8,s);
if (avctx->codec_id == CODEC_ID_WMV3IMAGE || avctx->codec_id == CODEC_ID_VC1IMAGE) {
for (i = 0; i < 4; i++)
if (!(v->sr_rows[i>>1][i%2] = av_malloc(v->output_width))) return -1;
s->low_delay = 1;
v->sprite_width = avctx->coded_width;
v->sprite_height = avctx->coded_height;
avctx->coded_width = avctx->width = v->output_width;
avctx->coded_height = avctx->height = v->output_height;
// prevent 16.16 overflows
if (v->sprite_width > 1<<14 ||
v->sprite_height > 1<<14 ||
v->output_width > 1<<14 ||
v->output_height > 1<<14) return -1;
}
return 0;
}
@ -3614,7 +3800,7 @@ static int vc1_decode_frame(AVCodecContext *avctx,
}
//for advanced profile we may need to parse and unescape data
if (avctx->codec_id == CODEC_ID_VC1) {
if (avctx->codec_id == CODEC_ID_VC1 || avctx->codec_id == CODEC_ID_VC1IMAGE) {
int buf_size2 = 0;
buf2 = av_mallocz(buf_size + FF_INPUT_BUFFER_PADDING_SIZE);
@ -3679,8 +3865,19 @@ static int vc1_decode_frame(AVCodecContext *avctx,
if (v->res_sprite) {
v->new_sprite = !get_bits1(&s->gb);
v->two_sprites = get_bits1(&s->gb);
if (!v->new_sprite)
goto end;
/* res_sprite means a Windows Media Image stream, CODEC_ID_*IMAGE means
we're using the sprite compositor. These are intentionally kept separate
so you can get the raw sprites by using the wmv3 decoder for WMVP or
the vc1 one for WVP2 */
if (avctx->codec_id == CODEC_ID_WMV3IMAGE || avctx->codec_id == CODEC_ID_VC1IMAGE) {
if (v->new_sprite) {
// switch AVCodecContext parameters to those of the sprites
avctx->width = avctx->coded_width = v->sprite_width;
avctx->height = avctx->coded_height = v->sprite_height;
} else {
goto image;
}
}
}
// do parse frame header
@ -3694,8 +3891,10 @@ static int vc1_decode_frame(AVCodecContext *avctx,
}
}
if (v->res_sprite && s->pict_type!=AV_PICTURE_TYPE_I) {
av_log(v->s.avctx, AV_LOG_WARNING, "Sprite decoder: expected I-frame\n");
if ((avctx->codec_id == CODEC_ID_WMV3IMAGE || avctx->codec_id == CODEC_ID_VC1IMAGE)
&& s->pict_type!=AV_PICTURE_TYPE_I) {
av_log(v->s.avctx, AV_LOG_ERROR, "Sprite decoder: expected I-frame\n");
goto err;
}
// for skipping the frame
@ -3758,6 +3957,19 @@ static int vc1_decode_frame(AVCodecContext *avctx,
assert(s->current_picture.f.pict_type == s->current_picture_ptr->f.pict_type);
assert(s->current_picture.f.pict_type == s->pict_type);
if (avctx->codec_id == CODEC_ID_WMV3IMAGE || avctx->codec_id == CODEC_ID_VC1IMAGE) {
image:
avctx->width = avctx->coded_width = v->output_width;
avctx->height = avctx->coded_height = v->output_height;
if (avctx->skip_frame >= AVDISCARD_NONREF) goto end;
#if CONFIG_WMV3IMAGE_DECODER || CONFIG_VC1IMAGE_DECODER
if (vc1_decode_sprites(v, &s->gb)) goto err;
#endif
*pict = v->sprite_output_frame;
*data_size = sizeof(AVFrame);
} else {
if (s->pict_type == AV_PICTURE_TYPE_B || s->low_delay) {
*pict= *(AVFrame*)s->current_picture_ptr;
} else if (s->last_picture_ptr != NULL) {
@ -3769,9 +3981,9 @@ assert(s->current_picture.f.pict_type == s->pict_type);
ff_print_debug_info(s, pict);
}
}
end:
if (v->res_sprite)
vc1_parse_sprites(v, &s->gb);
av_free(buf2);
for (i = 0; i < n_slices; i++)
av_free(slices[i].buf);
@ -3793,7 +4005,13 @@ err:
static av_cold int vc1_decode_end(AVCodecContext *avctx)
{
VC1Context *v = avctx->priv_data;
int i;
if ((avctx->codec_id == CODEC_ID_WMV3IMAGE || avctx->codec_id == CODEC_ID_VC1IMAGE)
&& v->sprite_output_frame.data[0])
avctx->release_buffer(avctx, &v->sprite_output_frame);
for (i = 0; i < 4; i++)
av_freep(&v->sr_rows[i>>1][i%2]);
av_freep(&v->hrd_rate);
av_freep(&v->hrd_buffer);
MPV_common_end(&v->s);
@ -3880,3 +4098,35 @@ AVCodec ff_vc1_vdpau_decoder = {
.profiles = NULL_IF_CONFIG_SMALL(profiles)
};
#endif
#if CONFIG_WMV3IMAGE_DECODER
AVCodec ff_wmv3image_decoder = {
.name = "wmv3image",
.type = AVMEDIA_TYPE_VIDEO,
.id = CODEC_ID_WMV3IMAGE,
.priv_data_size = sizeof(VC1Context),
.init = vc1_decode_init,
.close = vc1_decode_end,
.decode = vc1_decode_frame,
.capabilities = CODEC_CAP_DR1,
.flush = vc1_sprite_flush,
.long_name = NULL_IF_CONFIG_SMALL("Windows Media Video 9 Image"),
.pix_fmts = ff_pixfmt_list_420
};
#endif
#if CONFIG_VC1IMAGE_DECODER
AVCodec ff_vc1image_decoder = {
.name = "vc1image",
.type = AVMEDIA_TYPE_VIDEO,
.id = CODEC_ID_VC1IMAGE,
.priv_data_size = sizeof(VC1Context),
.init = vc1_decode_init,
.close = vc1_decode_end,
.decode = vc1_decode_frame,
.capabilities = CODEC_CAP_DR1,
.flush = vc1_sprite_flush,
.long_name = NULL_IF_CONFIG_SMALL("Windows Media Video 9 Image v2"),
.pix_fmts = ff_pixfmt_list_420
};
#endif

68
libavcodec/vc1dsp.c
Unescape View File

@ -713,6 +713,66 @@ static void avg_no_rnd_vc1_chroma_mc8_c(uint8_t *dst/*align 8*/, uint8_t *src/*a
}
}
#if CONFIG_WMV3IMAGE_DECODER || CONFIG_VC1IMAGE_DECODER
static void sprite_h_c(uint8_t *dst, const uint8_t *src, int offset, int advance, int count)
{
while (count--) {
int a = src[(offset >> 16) ];
int b = src[(offset >> 16) + 1];
*dst++ = a + ((b - a) * (offset&0xFFFF) >> 16);
offset += advance;
}
}
static av_always_inline void sprite_v_template(uint8_t *dst, const uint8_t *src1a, const uint8_t *src1b, int offset1,
int two_sprites, const uint8_t *src2a, const uint8_t *src2b, int offset2,
int alpha, int scaled, int width)
{
int a1, b1, a2, b2;
while (width--) {
a1 = *src1a++;
if (scaled) {
b1 = *src1b++;
a1 = a1 + ((b1 - a1) * offset1 >> 16);
}
if (two_sprites) {
a2 = *src2a++;
if (scaled > 1) {
b2 = *src2b++;
a2 = a2 + ((b2 - a2) * offset2 >> 16);
}
a1 = a1 + ((a2 - a1) * alpha >> 16);
}
*dst++ = a1;
}
}
static void sprite_v_single_c(uint8_t *dst, const uint8_t *src1a, const uint8_t *src1b, int offset, int width)
{
sprite_v_template(dst, src1a, src1b, offset, 0, NULL, NULL, 0, 0, 1, width);
}
static void sprite_v_double_noscale_c(uint8_t *dst, const uint8_t *src1a, const uint8_t *src2a, int alpha, int width)
{
sprite_v_template(dst, src1a, NULL, 0, 1, src2a, NULL, 0, alpha, 0, width);
}
static void sprite_v_double_onescale_c(uint8_t *dst, const uint8_t *src1a, const uint8_t *src1b, int offset1,
const uint8_t *src2a, int alpha, int width)
{
sprite_v_template(dst, src1a, src1b, offset1, 1, src2a, NULL, 0, alpha, 1, width);
}
static void sprite_v_double_twoscale_c(uint8_t *dst, const uint8_t *src1a, const uint8_t *src1b, int offset1,
const uint8_t *src2a, const uint8_t *src2b, int offset2,
int alpha, int width)
{
sprite_v_template(dst, src1a, src1b, offset1, 1, src2a, src2b, offset2, alpha, 2, width);
}
#endif
av_cold void ff_vc1dsp_init(VC1DSPContext* dsp) {
dsp->vc1_inv_trans_8x8 = vc1_inv_trans_8x8_c;
dsp->vc1_inv_trans_4x8 = vc1_inv_trans_4x8_c;
@ -770,6 +830,14 @@ av_cold void ff_vc1dsp_init(VC1DSPContext* dsp) {
dsp->put_no_rnd_vc1_chroma_pixels_tab[0]= put_no_rnd_vc1_chroma_mc8_c;
dsp->avg_no_rnd_vc1_chroma_pixels_tab[0]= avg_no_rnd_vc1_chroma_mc8_c;
#if CONFIG_WMV3IMAGE_DECODER || CONFIG_VC1IMAGE_DECODER
dsp->sprite_h = sprite_h_c;
dsp->sprite_v_single = sprite_v_single_c;
dsp->sprite_v_double_noscale = sprite_v_double_noscale_c;
dsp->sprite_v_double_onescale = sprite_v_double_onescale_c;
dsp->sprite_v_double_twoscale = sprite_v_double_twoscale_c;
#endif
if (HAVE_ALTIVEC)
ff_vc1dsp_init_altivec(dsp);
if (HAVE_MMX)

10
libavcodec/vc1dsp.h
Unescape View File

@ -60,6 +60,16 @@ typedef struct VC1DSPContext {
/* This is really one func used in VC-1 decoding */
h264_chroma_mc_func put_no_rnd_vc1_chroma_pixels_tab[3];
h264_chroma_mc_func avg_no_rnd_vc1_chroma_pixels_tab[3];
/* Windows Media Image functions */
void (*sprite_h)(uint8_t *dst, const uint8_t *src, int offset, int advance, int count);
void (*sprite_v_single)(uint8_t *dst, const uint8_t *src1a, const uint8_t *src1b, int offset, int width);
void (*sprite_v_double_noscale)(uint8_t *dst, const uint8_t *src1a, const uint8_t *src2a, int alpha, int width);
void (*sprite_v_double_onescale)(uint8_t *dst, const uint8_t *src1a, const uint8_t *src1b, int offset1,
const uint8_t *src2a, int alpha, int width);
void (*sprite_v_double_twoscale)(uint8_t *dst, const uint8_t *src1a, const uint8_t *src1b, int offset1,
const uint8_t *src2a, const uint8_t *src2b, int offset2,
int alpha, int width);
} VC1DSPContext;
void ff_vc1dsp_init(VC1DSPContext* c);

2
libavcodec/version.h
Unescape View File

@ -21,7 +21,7 @@
#define AVCODEC_VERSION_H
#define LIBAVCODEC_VERSION_MAJOR 53
#define LIBAVCODEC_VERSION_MINOR 8
#define LIBAVCODEC_VERSION_MINOR 9
#define LIBAVCODEC_VERSION_MICRO 0
#define LIBAVCODEC_VERSION_INT AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \

4
libavformat/riff.c
Unescape View File

@ -237,10 +237,10 @@ const AVCodecTag ff_codec_bmp_tags[] = {
{ CODEC_ID_QPEG, MKTAG('Q', '1', '.', '0') },
{ CODEC_ID_QPEG, MKTAG('Q', '1', '.', '1') },
{ CODEC_ID_WMV3, MKTAG('W', 'M', 'V', '3') },
{ CODEC_ID_WMV3, MKTAG('W', 'M', 'V', 'P') },
{ CODEC_ID_WMV3IMAGE, MKTAG('W', 'M', 'V', 'P') },
{ CODEC_ID_VC1, MKTAG('W', 'V', 'C', '1') },
{ CODEC_ID_VC1, MKTAG('W', 'M', 'V', 'A') },
{ CODEC_ID_VC1, MKTAG('W', 'V', 'P', '2') },
{ CODEC_ID_VC1IMAGE, MKTAG('W', 'V', 'P', '2') },
{ CODEC_ID_LOCO, MKTAG('L', 'O', 'C', 'O') },
{ CODEC_ID_WNV1, MKTAG('W', 'N', 'V', '1') },
{ CODEC_ID_AASC, MKTAG('A', 'A', 'S', 'C') },

Write Preview
Loading…
Cancel
Save