#include "libavutil/attributes.h"
#include "libavutil/imgutils.h"
#include "libavutil/internal.h"
+#include "libavutil/mem_internal.h"
#include "libavutil/stereo3d.h"
+#include "libavutil/video_enc_params.h"
#include "avcodec.h"
#include "bytestream.h"
#include "version.h"
#include "xvmc_internal.h"
+#define A53_MAX_CC_COUNT 2000
+
typedef struct Mpeg1Context {
MpegEncContext mpeg_enc_ctx;
int mpeg_enc_ctx_allocated; /* true if decoding context allocated */
component = (n & 1) + 1;
}
diff = decode_dc(&s->gb, component);
- if (diff >= 0xffff)
- return AVERROR_INVALIDDATA;
dc = s->last_dc[component];
dc += diff;
s->last_dc[component] = dc;
} else {
/* escape */
run = SHOW_UBITS(re, &s->gb, 6) + 1;
- LAST_SKIP_BITS(re, &s->gb, 6);
- UPDATE_CACHE(re, &s->gb);
+ SKIP_BITS(re, &s->gb, 6);
level = SHOW_SBITS(re, &s->gb, 12);
- SKIP_BITS(re, &s->gb, 12);
+ LAST_SKIP_BITS(re, &s->gb, 12);
i += run;
if (i > MAX_INDEX)
break;
component = (n & 1) + 1;
}
diff = decode_dc(&s->gb, component);
- if (diff >= 0xffff)
- return AVERROR_INVALIDDATA;
dc = s->last_dc[component];
dc += diff;
s->last_dc[component] = dc;
} else {
/* escape */
run = SHOW_UBITS(re, &s->gb, 6) + 1;
- LAST_SKIP_BITS(re, &s->gb, 6);
- UPDATE_CACHE(re, &s->gb);
+ SKIP_BITS(re, &s->gb, 6);
level = SHOW_SBITS(re, &s->gb, 12);
- SKIP_BITS(re, &s->gb, 12);
+ LAST_SKIP_BITS(re, &s->gb, 12);
i += run;
j = scantable[i];
if (level < 0) {
Mpeg1Context *s = avctx->priv_data;
MpegEncContext *s2 = &s->mpeg_enc_ctx;
- ff_mpv_decode_defaults(s2);
-
if ( avctx->codec_tag != AV_RL32("VCR2")
&& avctx->codec_tag != AV_RL32("BW10"))
avctx->coded_width = avctx->coded_height = 0; // do not trust dimensions from input
ff_mpv_decode_init(s2, avctx);
- s->mpeg_enc_ctx.avctx = avctx;
-
/* we need some permutation to store matrices,
* until the decoder sets the real permutation. */
ff_mpv_idct_init(s2);
* UINT64_C(3));
int ret;
- if (new_size > INT_MAX)
+ if (new_size > 3*A53_MAX_CC_COUNT)
return AVERROR(EINVAL);
ret = av_buffer_realloc(&s1->a53_buf_ref, new_size);
int old_size = s1->a53_buf_ref ? s1->a53_buf_ref->size : 0;
const uint64_t new_size = (old_size + cc_count
* UINT64_C(3));
- if (new_size > INT_MAX)
+ if (new_size > 3*A53_MAX_CC_COUNT)
return AVERROR(EINVAL);
ret = av_buffer_realloc(&s1->a53_buf_ref, new_size);
if (ret >= 0) {
uint8_t field, cc1, cc2;
uint8_t *cap = s1->a53_buf_ref->data;
+
+ memset(s1->a53_buf_ref->data + old_size, 0, cc_count * 3);
for (i = 0; i < cc_count && get_bits_left(&gb) >= 26; i++) {
skip_bits(&gb, 2); // priority
field = get_bits(&gb, 2);
int old_size = s1->a53_buf_ref ? s1->a53_buf_ref->size : 0;
const uint64_t new_size = (old_size + cc_count
* UINT64_C(6));
- if (new_size > INT_MAX)
+ if (new_size > 3*A53_MAX_CC_COUNT)
return AVERROR(EINVAL);
ret = av_buffer_realloc(&s1->a53_buf_ref, new_size);
s2->current_picture_ptr = NULL;
if (s2->timecode_frame_start != -1 && *got_output) {
+ char tcbuf[AV_TIMECODE_STR_SIZE];
AVFrameSideData *tcside = av_frame_new_side_data(picture,
AV_FRAME_DATA_GOP_TIMECODE,
sizeof(int64_t));
return AVERROR(ENOMEM);
memcpy(tcside->data, &s2->timecode_frame_start, sizeof(int64_t));
+ av_timecode_make_mpeg_tc_string(tcbuf, s2->timecode_frame_start);
+ av_dict_set(&picture->metadata, "timecode", tcbuf, 0);
+
s2->timecode_frame_start = -1;
}
}
.capabilities = AV_CODEC_CAP_DRAW_HORIZ_BAND | AV_CODEC_CAP_DR1 |
AV_CODEC_CAP_TRUNCATED | AV_CODEC_CAP_DELAY |
AV_CODEC_CAP_SLICE_THREADS,
- .caps_internal = FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM | FF_CODEC_CAP_INIT_CLEANUP,
+ .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE | FF_CODEC_CAP_INIT_CLEANUP |
+ FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM,
.flush = flush,
.max_lowres = 3,
.update_thread_context = ONLY_IF_THREADS_ENABLED(mpeg_decode_update_thread_context),
- .hw_configs = (const AVCodecHWConfigInternal*[]) {
+ .hw_configs = (const AVCodecHWConfigInternal *const []) {
#if CONFIG_MPEG1_NVDEC_HWACCEL
HWACCEL_NVDEC(mpeg1),
#endif
.capabilities = AV_CODEC_CAP_DRAW_HORIZ_BAND | AV_CODEC_CAP_DR1 |
AV_CODEC_CAP_TRUNCATED | AV_CODEC_CAP_DELAY |
AV_CODEC_CAP_SLICE_THREADS,
- .caps_internal = FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM | FF_CODEC_CAP_INIT_CLEANUP,
+ .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE | FF_CODEC_CAP_INIT_CLEANUP |
+ FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM,
.flush = flush,
.max_lowres = 3,
.profiles = NULL_IF_CONFIG_SMALL(ff_mpeg2_video_profiles),
- .hw_configs = (const AVCodecHWConfigInternal*[]) {
+ .hw_configs = (const AVCodecHWConfigInternal *const []) {
#if CONFIG_MPEG2_DXVA2_HWACCEL
HWACCEL_DXVA2(mpeg2),
#endif
.close = mpeg_decode_end,
.decode = mpeg_decode_frame,
.capabilities = AV_CODEC_CAP_DRAW_HORIZ_BAND | AV_CODEC_CAP_DR1 | AV_CODEC_CAP_TRUNCATED | AV_CODEC_CAP_DELAY | AV_CODEC_CAP_SLICE_THREADS,
- .caps_internal = FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM | FF_CODEC_CAP_INIT_CLEANUP,
+ .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE | FF_CODEC_CAP_INIT_CLEANUP |
+ FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM,
.flush = flush,
.max_lowres = 3,
};
+
+typedef struct IPUContext {
+ MpegEncContext m;
+
+ int flags;
+ DECLARE_ALIGNED(32, int16_t, block)[6][64];
+} IPUContext;
+
+static int ipu_decode_frame(AVCodecContext *avctx, void *data,
+ int *got_frame, AVPacket *avpkt)
+{
+ IPUContext *s = avctx->priv_data;
+ MpegEncContext *m = &s->m;
+ GetBitContext *gb = &m->gb;
+ AVFrame * const frame = data;
+ int ret;
+
+ ret = ff_get_buffer(avctx, frame, 0);
+ if (ret < 0)
+ return ret;
+
+ ret = init_get_bits8(gb, avpkt->data, avpkt->size);
+ if (ret < 0)
+ return ret;
+
+ s->flags = get_bits(gb, 8);
+ m->intra_dc_precision = s->flags & 3;
+ m->q_scale_type = !!(s->flags & 0x40);
+ m->intra_vlc_format = !!(s->flags & 0x20);
+ m->alternate_scan = !!(s->flags & 0x10);
+
+ if (s->flags & 0x10) {
+ ff_init_scantable(m->idsp.idct_permutation, &m->inter_scantable, ff_alternate_vertical_scan);
+ ff_init_scantable(m->idsp.idct_permutation, &m->intra_scantable, ff_alternate_vertical_scan);
+ } else {
+ ff_init_scantable(m->idsp.idct_permutation, &m->inter_scantable, ff_zigzag_direct);
+ ff_init_scantable(m->idsp.idct_permutation, &m->intra_scantable, ff_zigzag_direct);
+ }
+
+ m->last_dc[0] = m->last_dc[1] = m->last_dc[2] = 1 << (7 + (s->flags & 3));
+ m->qscale = 1;
+
+ for (int y = 0; y < avctx->height; y += 16) {
+ int intraquant;
+
+ for (int x = 0; x < avctx->width; x += 16) {
+ if (x || y) {
+ if (!get_bits1(gb))
+ return AVERROR_INVALIDDATA;
+ }
+ if (get_bits1(gb)) {
+ intraquant = 0;
+ } else {
+ if (!get_bits1(gb))
+ return AVERROR_INVALIDDATA;
+ intraquant = 1;
+ }
+
+ if (s->flags & 4)
+ skip_bits1(gb);
+
+ if (intraquant)
+ m->qscale = mpeg_get_qscale(m);
+
+ memset(s->block, 0, sizeof(s->block));
+
+ for (int n = 0; n < 6; n++) {
+ if (s->flags & 0x80) {
+ ret = ff_mpeg1_decode_block_intra(&m->gb,
+ m->intra_matrix,
+ m->intra_scantable.permutated,
+ m->last_dc, s->block[n],
+ n, m->qscale);
+ if (ret >= 0)
+ m->block_last_index[n] = ret;
+ } else {
+ ret = mpeg2_decode_block_intra(m, s->block[n], n);
+ }
+
+ if (ret < 0)
+ return ret;
+ }
+
+ m->idsp.idct_put(frame->data[0] + y * frame->linesize[0] + x,
+ frame->linesize[0], s->block[0]);
+ m->idsp.idct_put(frame->data[0] + y * frame->linesize[0] + x + 8,
+ frame->linesize[0], s->block[1]);
+ m->idsp.idct_put(frame->data[0] + (y + 8) * frame->linesize[0] + x,
+ frame->linesize[0], s->block[2]);
+ m->idsp.idct_put(frame->data[0] + (y + 8) * frame->linesize[0] + x + 8,
+ frame->linesize[0], s->block[3]);
+ m->idsp.idct_put(frame->data[1] + (y >> 1) * frame->linesize[1] + (x >> 1),
+ frame->linesize[1], s->block[4]);
+ m->idsp.idct_put(frame->data[2] + (y >> 1) * frame->linesize[2] + (x >> 1),
+ frame->linesize[2], s->block[5]);
+ }
+ }
+
+ align_get_bits(gb);
+ if (get_bits_left(gb) != 32)
+ return AVERROR_INVALIDDATA;
+
+ frame->pict_type = AV_PICTURE_TYPE_I;
+ frame->key_frame = 1;
+ *got_frame = 1;
+
+ return avpkt->size;
+}
+
+static av_cold int ipu_decode_init(AVCodecContext *avctx)
+{
+ IPUContext *s = avctx->priv_data;
+ MpegEncContext *m = &s->m;
+
+ avctx->pix_fmt = AV_PIX_FMT_YUV420P;
+
+ ff_mpv_decode_init(m, avctx);
+ ff_mpv_idct_init(m);
+ ff_mpeg12_common_init(m);
+ ff_mpeg12_init_vlcs();
+
+ for (int i = 0; i < 64; i++) {
+ int j = m->idsp.idct_permutation[i];
+ int v = ff_mpeg1_default_intra_matrix[i];
+ m->intra_matrix[j] = v;
+ m->chroma_intra_matrix[j] = v;
+ }
+
+ for (int i = 0; i < 64; i++) {
+ int j = m->idsp.idct_permutation[i];
+ int v = ff_mpeg1_default_non_intra_matrix[i];
+ m->inter_matrix[j] = v;
+ m->chroma_inter_matrix[j] = v;
+ }
+
+ return 0;
+}
+
+static av_cold int ipu_decode_end(AVCodecContext *avctx)
+{
+ IPUContext *s = avctx->priv_data;
+
+ ff_mpv_common_end(&s->m);
+
+ return 0;
+}
+
+AVCodec ff_ipu_decoder = {
+ .name = "ipu",
+ .long_name = NULL_IF_CONFIG_SMALL("IPU Video"),
+ .type = AVMEDIA_TYPE_VIDEO,
+ .id = AV_CODEC_ID_IPU,
+ .priv_data_size = sizeof(IPUContext),
+ .init = ipu_decode_init,
+ .decode = ipu_decode_frame,
+ .close = ipu_decode_end,
+ .capabilities = AV_CODEC_CAP_DR1,
+ .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE | FF_CODEC_CAP_INIT_CLEANUP,
+};