/*
* Copyright (C) 2003-2004 the ffmpeg project
*
- * This file is part of FFmpeg.
+ * This file is part of Libav.
*
- * FFmpeg is free software; you can redistribute it and/or
+ * Libav 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,
+ * Libav 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
+ * License along with Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "libavutil/imgutils.h"
#include "avcodec.h"
+#include "internal.h"
#include "dsputil.h"
#include "get_bits.h"
#define FRAGMENT_PIXELS 8
-static av_cold int vp3_decode_end(AVCodecContext *avctx);
-
//FIXME split things out into their own arrays
typedef struct Vp3Fragment {
int16_t dc;
/* these arrays need to be on 16-byte boundaries since SSE2 operations
* index into them */
- DECLARE_ALIGNED(16, int16_t, qmat)[3][2][3][64]; //<qmat[qpi][is_inter][plane]
+ DECLARE_ALIGNED(16, int16_t, qmat)[3][2][3][64]; ///< qmat[qpi][is_inter][plane]
/* This table contains superblock_count * 16 entries. Each set of 16
* numbers corresponds to the fragment indexes 0..15 of the superblock.
* is coded. */
unsigned char *macroblock_coding;
- uint8_t edge_emu_buffer[9*2048]; //FIXME dynamic alloc
- int8_t qscale_table[2048]; //FIXME dynamic alloc (width+15)/16
+ uint8_t *edge_emu_buffer;
/* Huffman decode */
int hti;
* VP3 specific functions
************************************************************************/
+static void vp3_decode_flush(AVCodecContext *avctx)
+{
+ Vp3DecodeContext *s = avctx->priv_data;
+
+ if (s->golden_frame.data[0]) {
+ if (s->golden_frame.data[0] == s->last_frame.data[0])
+ memset(&s->last_frame, 0, sizeof(AVFrame));
+ if (s->current_frame.data[0] == s->golden_frame.data[0])
+ memset(&s->current_frame, 0, sizeof(AVFrame));
+ ff_thread_release_buffer(avctx, &s->golden_frame);
+ }
+ if (s->last_frame.data[0]) {
+ if (s->current_frame.data[0] == s->last_frame.data[0])
+ memset(&s->current_frame, 0, sizeof(AVFrame));
+ ff_thread_release_buffer(avctx, &s->last_frame);
+ }
+ if (s->current_frame.data[0])
+ ff_thread_release_buffer(avctx, &s->current_frame);
+}
+
+static av_cold int vp3_decode_end(AVCodecContext *avctx)
+{
+ Vp3DecodeContext *s = avctx->priv_data;
+ int i;
+
+ av_free(s->superblock_coding);
+ av_free(s->all_fragments);
+ av_free(s->coded_fragment_list[0]);
+ av_free(s->dct_tokens_base);
+ av_free(s->superblock_fragments);
+ av_free(s->macroblock_coding);
+ av_free(s->motion_val[0]);
+ av_free(s->motion_val[1]);
+ av_free(s->edge_emu_buffer);
+
+ if (avctx->internal->is_copy)
+ return 0;
+
+ for (i = 0; i < 16; i++) {
+ free_vlc(&s->dc_vlc[i]);
+ free_vlc(&s->ac_vlc_1[i]);
+ free_vlc(&s->ac_vlc_2[i]);
+ free_vlc(&s->ac_vlc_3[i]);
+ free_vlc(&s->ac_vlc_4[i]);
+ }
+
+ free_vlc(&s->superblock_run_length_vlc);
+ free_vlc(&s->fragment_run_length_vlc);
+ free_vlc(&s->mode_code_vlc);
+ free_vlc(&s->motion_vector_vlc);
+
+ /* release all frames */
+ vp3_decode_flush(avctx);
+
+ return 0;
+}
+
/*
* This function sets up all of the various blocks mappings:
* superblocks <-> fragments, macroblocks <-> fragments,
s->qmat[qpi][inter][plane][0] = s->qmat[0][inter][plane][0];
}
}
-
- memset(s->qscale_table, (FFMAX(s->qmat[0][0][0][1], s->qmat[0][0][1][1])+8)/16, 512); //FIXME finetune
}
/*
/* decode a VLC into a token */
token = get_vlc2(gb, vlc_table, 11, 3);
/* use the token to get a zero run, a coefficient, and an eob run */
- if (token <= 6) {
+ if ((unsigned) token <= 6U) {
eob_run = eob_run_base[token];
if (eob_run_get_bits[token])
eob_run += get_bits(gb, eob_run_get_bits[token]);
coeff_i += eob_run;
eob_run = 0;
}
- } else {
+ } else if (token >= 0) {
bits_to_get = coeff_get_bits[token];
if (bits_to_get)
bits_to_get = get_bits(gb, bits_to_get);
for (i = coeff_index+1; i <= coeff_index+zero_run; i++)
s->num_coded_frags[plane][i]--;
coeff_i++;
+ } else {
+ av_log(s->avctx, AV_LOG_ERROR,
+ "Invalid token %d\n", token);
+ return -1;
}
}
/* unpack the Y plane DC coefficients */
residual_eob_run = unpack_vlcs(s, gb, &s->dc_vlc[dc_y_table], 0,
0, residual_eob_run);
+ if (residual_eob_run < 0)
+ return residual_eob_run;
/* reverse prediction of the Y-plane DC coefficients */
reverse_dc_prediction(s, 0, s->fragment_width[0], s->fragment_height[0]);
/* unpack the C plane DC coefficients */
residual_eob_run = unpack_vlcs(s, gb, &s->dc_vlc[dc_c_table], 0,
1, residual_eob_run);
+ if (residual_eob_run < 0)
+ return residual_eob_run;
residual_eob_run = unpack_vlcs(s, gb, &s->dc_vlc[dc_c_table], 0,
2, residual_eob_run);
+ if (residual_eob_run < 0)
+ return residual_eob_run;
/* reverse prediction of the C-plane DC coefficients */
if (!(s->avctx->flags & CODEC_FLAG_GRAY))
for (i = 1; i <= 63; i++) {
residual_eob_run = unpack_vlcs(s, gb, y_tables[i], i,
0, residual_eob_run);
+ if (residual_eob_run < 0)
+ return residual_eob_run;
residual_eob_run = unpack_vlcs(s, gb, c_tables[i], i,
1, residual_eob_run);
+ if (residual_eob_run < 0)
+ return residual_eob_run;
residual_eob_run = unpack_vlcs(s, gb, c_tables[i], i,
2, residual_eob_run);
+ if (residual_eob_run < 0)
+ return residual_eob_run;
}
return 0;
case 1: // zero run
s->dct_tokens[plane][i]++;
i += (token >> 2) & 0x7f;
+ if (i > 63) {
+ av_log(s->avctx, AV_LOG_ERROR, "Coefficient index overflow\n");
+ return i;
+ }
block[perm[i]] = (token >> 9) * dequantizer[perm[i]];
i++;
break;
*/
static void vp3_draw_horiz_band(Vp3DecodeContext *s, int y)
{
- int h, cy;
- int offset[4];
+ int h, cy, i;
+ int offset[AV_NUM_DATA_POINTERS];
- if (HAVE_PTHREADS && s->avctx->active_thread_type&FF_THREAD_FRAME) {
+ if (HAVE_THREADS && s->avctx->active_thread_type&FF_THREAD_FRAME) {
int y_flipped = s->flipped_image ? s->avctx->height-y : y;
// At the end of the frame, report INT_MAX instead of the height of the frame.
offset[0] = s->current_frame.linesize[0]*y;
offset[1] = s->current_frame.linesize[1]*cy;
offset[2] = s->current_frame.linesize[2]*cy;
- offset[3] = 0;
+ for (i = 3; i < AV_NUM_DATA_POINTERS; i++)
+ offset[i] = 0;
emms_c();
s->avctx->draw_horiz_band(s->avctx, &s->current_frame, offset, y, 3, h);
int fragment_width = s->fragment_width[!!plane];
int fragment_height = s->fragment_height[!!plane];
int fragment_start = s->fragment_start[plane];
- int do_await = !plane && HAVE_PTHREADS && (s->avctx->active_thread_type&FF_THREAD_FRAME);
+ int do_await = !plane && HAVE_THREADS && (s->avctx->active_thread_type&FF_THREAD_FRAME);
if (!s->flipped_image) stride = -stride;
if (CONFIG_GRAY && plane && (s->avctx->flags & CODEC_FLAG_GRAY))
continue;
-
- if(FFABS(stride) > 2048)
- return; //various tables are fixed size
-
/* for each superblock row in the slice (both of them)... */
for (; sb_y < slice_height; sb_y++) {
if(src_x<0 || src_y<0 || src_x + 9 >= plane_width || src_y + 9 >= plane_height){
uint8_t *temp= s->edge_emu_buffer;
- if(stride<0) temp -= 9*stride;
- else temp += 9*stride;
+ if(stride<0) temp -= 8*stride;
s->dsp.emulated_edge_mc(temp, motion_source, stride, 9, 9, src_x, src_y, plane_width, plane_height);
motion_source= temp;
/* invert DCT and place (or add) in final output */
if (s->all_fragments[i].coding_method == MODE_INTRA) {
- vp3_dequant(s, s->all_fragments + i, plane, 0, block);
+ int index;
+ index = vp3_dequant(s, s->all_fragments + i, plane, 0, block);
+ if (index > 63)
+ continue;
if(s->avctx->idct_algo!=FF_IDCT_VP3)
block[0] += 128<<3;
s->dsp.idct_put(
stride,
block);
} else {
- if (vp3_dequant(s, s->all_fragments + i, plane, 1, block)) {
+ int index = vp3_dequant(s, s->all_fragments + i, plane, 1, block);
+ if (index > 63)
+ continue;
+ if (index > 0) {
s->dsp.idct_add(
output_plane + first_pixel,
stride,
return 0;
}
-/*
- * This is the ffmpeg/libavcodec API init function.
- */
static av_cold int vp3_decode_init(AVCodecContext *avctx)
{
Vp3DecodeContext *s = avctx->priv_data;
Vp3DecodeContext *s = dst->priv_data, *s1 = src->priv_data;
int qps_changed = 0, i, err;
+#define copy_fields(to, from, start_field, end_field) memcpy(&to->start_field, &from->start_field, (char*)&to->end_field - (char*)&to->start_field)
+
if (!s1->current_frame.data[0]
||s->width != s1->width
- ||s->height!= s1->height)
+ ||s->height!= s1->height) {
+ if (s != s1)
+ copy_fields(s, s1, golden_frame, current_frame);
return -1;
+ }
if (s != s1) {
// init tables if the first frame hasn't been decoded
memcpy(s->motion_val[1], s1->motion_val[1], c_fragment_count * sizeof(*s->motion_val[1]));
}
-#define copy_fields(to, from, start_field, end_field) memcpy(&to->start_field, &from->start_field, (char*)&to->end_field - (char*)&to->start_field)
-
// copy previous frame data
copy_fields(s, s1, golden_frame, dsp);
}
}
- if (s->qps[0] != s1->qps[0]) {
- memcpy(&s->qscale_table, &s1->qscale_table, sizeof(s->qscale_table));
+ if (s->qps[0] != s1->qps[0])
memcpy(&s->bounding_values_array, &s1->bounding_values_array, sizeof(s->bounding_values_array));
- }
if (qps_changed)
copy_fields(s, s1, qps, superblock_count);
return 0;
}
-/*
- * This is the ffmpeg/libavcodec API frame decode function.
- */
static int vp3_decode_frame(AVCodecContext *avctx,
void *data, int *data_size,
AVPacket *avpkt)
return buf_size;
s->current_frame.reference = 3;
- s->current_frame.pict_type = s->keyframe ? FF_I_TYPE : FF_P_TYPE;
+ s->current_frame.pict_type = s->keyframe ? AV_PICTURE_TYPE_I : AV_PICTURE_TYPE_P;
if (ff_thread_get_buffer(avctx, &s->current_frame) < 0) {
av_log(s->avctx, AV_LOG_ERROR, "get_buffer() failed\n");
goto error;
}
+ if (!s->edge_emu_buffer)
+ s->edge_emu_buffer = av_malloc(9*FFABS(s->current_frame.linesize[0]));
+
if (s->keyframe) {
if (!s->theora)
{
av_log(s->avctx, AV_LOG_WARNING, "vp3: first frame not a keyframe\n");
s->golden_frame.reference = 3;
- s->golden_frame.pict_type = FF_I_TYPE;
+ s->golden_frame.pict_type = AV_PICTURE_TYPE_I;
if (ff_thread_get_buffer(avctx, &s->golden_frame) < 0) {
av_log(s->avctx, AV_LOG_ERROR, "get_buffer() failed\n");
goto error;
}
s->last_frame = s->golden_frame;
s->last_frame.type = FF_BUFFER_TYPE_COPY;
+ ff_thread_report_progress(&s->last_frame, INT_MAX, 0);
}
}
- s->current_frame.qscale_table= s->qscale_table; //FIXME allocate individual tables per AVFrame
- s->current_frame.qstride= 0;
-
memset(s->all_fragments, 0, s->fragment_count * sizeof(Vp3Fragment));
ff_thread_finish_setup(avctx);
*data_size=sizeof(AVFrame);
*(AVFrame*)data= s->current_frame;
- if (!HAVE_PTHREADS || !(s->avctx->active_thread_type&FF_THREAD_FRAME))
+ if (!HAVE_THREADS || !(s->avctx->active_thread_type&FF_THREAD_FRAME))
update_frames(avctx);
return buf_size;
error:
ff_thread_report_progress(&s->current_frame, INT_MAX, 0);
- if (!HAVE_PTHREADS || !(s->avctx->active_thread_type&FF_THREAD_FRAME))
+ if (!HAVE_THREADS || !(s->avctx->active_thread_type&FF_THREAD_FRAME))
avctx->release_buffer(avctx, &s->current_frame);
return -1;
}
-/*
- * This is the ffmpeg/libavcodec API module cleanup function.
- */
-static av_cold int vp3_decode_end(AVCodecContext *avctx)
-{
- Vp3DecodeContext *s = avctx->priv_data;
- int i;
-
- if (avctx->is_copy && !s->current_frame.data[0])
- return 0;
-
- av_free(s->superblock_coding);
- av_free(s->all_fragments);
- av_free(s->coded_fragment_list[0]);
- av_free(s->dct_tokens_base);
- av_free(s->superblock_fragments);
- av_free(s->macroblock_coding);
- av_free(s->motion_val[0]);
- av_free(s->motion_val[1]);
-
- if (avctx->is_copy) return 0;
-
- for (i = 0; i < 16; i++) {
- free_vlc(&s->dc_vlc[i]);
- free_vlc(&s->ac_vlc_1[i]);
- free_vlc(&s->ac_vlc_2[i]);
- free_vlc(&s->ac_vlc_3[i]);
- free_vlc(&s->ac_vlc_4[i]);
- }
-
- free_vlc(&s->superblock_run_length_vlc);
- free_vlc(&s->fragment_run_length_vlc);
- free_vlc(&s->mode_code_vlc);
- free_vlc(&s->motion_vector_vlc);
-
- /* release all frames */
- if (s->golden_frame.data[0])
- ff_thread_release_buffer(avctx, &s->golden_frame);
- if (s->last_frame.data[0] && s->last_frame.type != FF_BUFFER_TYPE_COPY)
- ff_thread_release_buffer(avctx, &s->last_frame);
- /* no need to release the current_frame since it will always be pointing
- * to the same frame as either the golden or last frame */
-
- return 0;
-}
-
static int read_huffman_tree(AVCodecContext *avctx, GetBitContext *gb)
{
Vp3DecodeContext *s = avctx->priv_data;
return 0;
}
+static int vp3_init_thread_copy(AVCodecContext *avctx)
+{
+ Vp3DecodeContext *s = avctx->priv_data;
+
+ s->superblock_coding = NULL;
+ s->all_fragments = NULL;
+ s->coded_fragment_list[0] = NULL;
+ s->dct_tokens_base = NULL;
+ s->superblock_fragments = NULL;
+ s->macroblock_coding = NULL;
+ s->motion_val[0] = NULL;
+ s->motion_val[1] = NULL;
+ s->edge_emu_buffer = NULL;
+
+ return 0;
+}
+
#if CONFIG_THEORA_DECODER
static const enum PixelFormat theora_pix_fmts[4] = {
PIX_FMT_YUV420P, PIX_FMT_NONE, PIX_FMT_YUV422P, PIX_FMT_YUV444P
return -1;
}
- if (ff_split_xiph_headers(avctx->extradata, avctx->extradata_size,
+ if (avpriv_split_xiph_headers(avctx->extradata, avctx->extradata_size,
42, header_start, header_len) < 0) {
av_log(avctx, AV_LOG_ERROR, "Corrupt extradata\n");
return -1;
}
AVCodec ff_theora_decoder = {
- "theora",
- AVMEDIA_TYPE_VIDEO,
- CODEC_ID_THEORA,
- sizeof(Vp3DecodeContext),
- theora_decode_init,
- NULL,
- vp3_decode_end,
- vp3_decode_frame,
- CODEC_CAP_DR1 | CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_FRAME_THREADS,
- NULL,
+ .name = "theora",
+ .type = AVMEDIA_TYPE_VIDEO,
+ .id = CODEC_ID_THEORA,
+ .priv_data_size = sizeof(Vp3DecodeContext),
+ .init = theora_decode_init,
+ .close = vp3_decode_end,
+ .decode = vp3_decode_frame,
+ .capabilities = CODEC_CAP_DR1 | CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_FRAME_THREADS,
+ .flush = vp3_decode_flush,
.long_name = NULL_IF_CONFIG_SMALL("Theora"),
+ .init_thread_copy = ONLY_IF_THREADS_ENABLED(vp3_init_thread_copy),
.update_thread_context = ONLY_IF_THREADS_ENABLED(vp3_update_thread_context)
};
#endif
AVCodec ff_vp3_decoder = {
- "vp3",
- AVMEDIA_TYPE_VIDEO,
- CODEC_ID_VP3,
- sizeof(Vp3DecodeContext),
- vp3_decode_init,
- NULL,
- vp3_decode_end,
- vp3_decode_frame,
- CODEC_CAP_DR1 | CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_FRAME_THREADS,
- NULL,
+ .name = "vp3",
+ .type = AVMEDIA_TYPE_VIDEO,
+ .id = CODEC_ID_VP3,
+ .priv_data_size = sizeof(Vp3DecodeContext),
+ .init = vp3_decode_init,
+ .close = vp3_decode_end,
+ .decode = vp3_decode_frame,
+ .capabilities = CODEC_CAP_DR1 | CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_FRAME_THREADS,
+ .flush = vp3_decode_flush,
.long_name = NULL_IF_CONFIG_SMALL("On2 VP3"),
+ .init_thread_copy = ONLY_IF_THREADS_ENABLED(vp3_init_thread_copy),
.update_thread_context = ONLY_IF_THREADS_ENABLED(vp3_update_thread_context)
};
projects / ffmpeg / blobdiff