lavc/bsf: add an Opus metadata bitstream filter

[ffmpeg] / libavcodec / mpeg4videodec.c

diff --git a/libavcodec/mpeg4videodec.c b/libavcodec/mpeg4videodec.c
index b6f2ae7b7b5220bd00475541c6c1de2f1b20b681..7e52bbef1b723b62f16e5244d101e304889888d0 100644 (file)
--- a/libavcodec/mpeg4videodec.c
+++ b/libavcodec/mpeg4videodec.c
@@ -26,7 +26,7 @@
 #include "libavutil/opt.h"
 #include "libavutil/pixdesc.h"
 #include "error_resilience.h"
-#include "hwaccel.h"
+#include "hwconfig.h"
 #include "idctdsp.h"
 #include "internal.h"
 #include "mpegutils.h"
@@ -711,7 +711,7 @@ static int mpeg4_decode_partition_a(Mpeg4DecContext *ctx)
                 int i;
 
                 do {
-                    if (show_bits_long(&s->gb, 19) == DC_MARKER)
+                    if (show_bits(&s->gb, 19) == DC_MARKER)
                         return mb_num - 1;
 
                     cbpc = get_vlc2(&s->gb, ff_h263_intra_MCBPC_vlc.table, INTRA_MCBPC_VLC_BITS, 2);
@@ -1001,7 +1001,7 @@ int ff_mpeg4_decode_partitions(Mpeg4DecContext *ctx)
     if (s->pict_type == AV_PICTURE_TYPE_I) {
         while (show_bits(&s->gb, 9) == 1)
             skip_bits(&s->gb, 9);
-        if (get_bits_long(&s->gb, 19) != DC_MARKER) {
+        if (get_bits(&s->gb, 19) != DC_MARKER) {
             av_log(s->avctx, AV_LOG_ERROR,
                    "marker missing after first I partition at %d %d\n",
                    s->mb_x, s->mb_y);
@@ -1782,7 +1782,7 @@ static void next_start_code_studio(GetBitContext *gb)
 {
     align_get_bits(gb);
 
-    while (get_bits_left(gb) >= 24 && show_bits_long(gb, 24) != 0x1) {
+    while (get_bits_left(gb) >= 24 && show_bits(gb, 24) != 0x1) {
         get_bits(gb, 8);
     }
 }
@@ -1826,6 +1826,7 @@ static int mpeg4_decode_studio_block(MpegEncContext *s, int32_t block[64], int n
     uint32_t flc;
     const int min = -1 *  (1 << (s->avctx->bits_per_raw_sample + 6));
     const int max =      ((1 << (s->avctx->bits_per_raw_sample + 6)) - 1);
+    int shift =  3 - s->dct_precision;
 
     mismatch = 1;
 
@@ -1921,7 +1922,7 @@ static int mpeg4_decode_studio_block(MpegEncContext *s, int32_t block[64], int n
             else
                 block[j] = flc;
         }
-        block[j] = ((8 * 2 * block[j] * quant_matrix[j] * s->qscale) >> s->dct_precision) / 32;
+        block[j] = ((block[j] * quant_matrix[j] * s->qscale) * (1 << shift)) / 16;
         block[j] = av_clip(block[j], min, max);
         mismatch ^= block[j];
     }
@@ -3211,7 +3212,7 @@ static int decode_studio_vol_header(Mpeg4DecContext *ctx, GetBitContext *gb)
  * Decode MPEG-4 headers.
  *
  * @param  header If set the absence of a VOP is not treated as error; otherwise, it is treated as such.
- * @return <0 if an error occured
+ * @return <0 if an error occurred
  *         FRAME_SKIPPED if a not coded VOP is found
  *         0 else
  */
@@ -3459,7 +3460,33 @@ static int mpeg4_update_thread_context(AVCodecContext *dst,
     if (ret < 0)
         return ret;
 
-    memcpy(((uint8_t*)s) + sizeof(MpegEncContext), ((uint8_t*)s1) + sizeof(MpegEncContext), sizeof(Mpeg4DecContext) - sizeof(MpegEncContext));
+    // copy all the necessary fields explicitly
+    s->time_increment_bits       = s1->time_increment_bits;
+    s->shape                     = s1->shape;
+    s->vol_sprite_usage          = s1->vol_sprite_usage;
+    s->sprite_brightness_change  = s1->sprite_brightness_change;
+    s->num_sprite_warping_points = s1->num_sprite_warping_points;
+    s->rvlc                      = s1->rvlc;
+    s->resync_marker             = s1->resync_marker;
+    s->t_frame                   = s1->t_frame;
+    s->new_pred                  = s1->new_pred;
+    s->enhancement_type          = s1->enhancement_type;
+    s->scalability               = s1->scalability;
+    s->use_intra_dc_vlc          = s1->use_intra_dc_vlc;
+    s->intra_dc_threshold        = s1->intra_dc_threshold;
+    s->divx_version              = s1->divx_version;
+    s->divx_build                = s1->divx_build;
+    s->xvid_build                = s1->xvid_build;
+    s->lavc_build                = s1->lavc_build;
+    s->showed_packed_warning     = s1->showed_packed_warning;
+    s->vol_control_parameters    = s1->vol_control_parameters;
+    s->cplx_estimation_trash_i   = s1->cplx_estimation_trash_i;
+    s->cplx_estimation_trash_p   = s1->cplx_estimation_trash_p;
+    s->cplx_estimation_trash_b   = s1->cplx_estimation_trash_b;
+    s->rgb                       = s1->rgb;
+
+    memcpy(s->sprite_shift, s1->sprite_shift, sizeof(s1->sprite_shift));
+    memcpy(s->sprite_traj,  s1->sprite_traj,  sizeof(s1->sprite_traj));
 
     if (CONFIG_MPEG4_DECODER && !init && s1->xvid_build >= 0)
         ff_xvid_idct_init(&s->m.idsp, dst);
@@ -3523,7 +3550,6 @@ static av_cold int decode_init(AVCodecContext *avctx)
     ctx->time_increment_bits = 4; /* default value for broken headers */
 
     avctx->chroma_sample_location = AVCHROMA_LOC_LEFT;
-    avctx->internal->allocate_progress = 1;
 
     return 0;
 }
@@ -3533,13 +3559,11 @@ static av_cold int decode_end(AVCodecContext *avctx)
     Mpeg4DecContext *ctx = avctx->priv_data;
     int i;
 
-    if (!avctx->internal->is_copy) {
-        for (i = 0; i < 12; i++)
-            ff_free_vlc(&ctx->studio_intra_tab[i]);
+    for (i = 0; i < 12; i++)
+        ff_free_vlc(&ctx->studio_intra_tab[i]);
 
-        ff_free_vlc(&ctx->studio_luma_dc);
-        ff_free_vlc(&ctx->studio_chroma_dc);
-    }
+    ff_free_vlc(&ctx->studio_luma_dc);
+    ff_free_vlc(&ctx->studio_chroma_dc);
 
     return ff_h263_decode_end(avctx);
 }
@@ -3569,7 +3593,8 @@ AVCodec ff_mpeg4_decoder = {
     .capabilities          = AV_CODEC_CAP_DRAW_HORIZ_BAND | AV_CODEC_CAP_DR1 |
                              AV_CODEC_CAP_TRUNCATED | AV_CODEC_CAP_DELAY |
                              AV_CODEC_CAP_FRAME_THREADS,
-    .caps_internal         = FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM,
+    .caps_internal         = FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM |
+                             FF_CODEC_CAP_ALLOCATE_PROGRESS,
     .flush                 = ff_mpeg_flush,
     .max_lowres            = 3,
     .pix_fmts              = ff_h263_hwaccel_pixfmt_list_420,