r3d: do not create the audio stream until we know the sample rate
[ffmpeg.git] / libavcodec / mpeg4videodec.c
index 199e3b3..b09aeb2 100644 (file)
 #include "internal.h"
 #include "mpegutils.h"
 #include "mpegvideo.h"
+#include "mpegvideodata.h"
 #include "mpeg4video.h"
 #include "h263.h"
 #include "thread.h"
+#include "xvididct.h"
 
 /* The defines below define the number of bits that are read at once for
  * reading vlc values. Changing these may improve speed and data cache needs
@@ -562,7 +564,7 @@ static inline int mpeg4_decode_dc(MpegEncContext *s, int n, int *dir_ptr)
 
         if (code > 8) {
             if (get_bits1(&s->gb) == 0) { /* marker */
-                if (s->err_recognition & AV_EF_BITSTREAM) {
+                if (s->avctx->err_recognition & AV_EF_BITSTREAM) {
                     av_log(s->avctx, AV_LOG_ERROR, "dc marker bit missing\n");
                     return -1;
                 }
@@ -1098,7 +1100,7 @@ static inline int mpeg4_decode_block(Mpeg4DecContext *ctx, int16_t *block,
                                 level = level * qmul - qadd;
 
                             if ((unsigned)(level + 2048) > 4095) {
-                                if (s->err_recognition & AV_EF_BITSTREAM) {
+                                if (s->avctx->err_recognition & AV_EF_BITSTREAM) {
                                     if (level > 2560 || level < -2560) {
                                         av_log(s->avctx, AV_LOG_ERROR,
                                                "|level| overflow in 3. esc, qp=%d\n",
@@ -1721,23 +1723,22 @@ static int decode_vol_header(Mpeg4DecContext *ctx, GetBitContext *gb)
 
     check_marker(gb, "before time_increment_resolution");
 
-    s->avctx->time_base.den = get_bits(gb, 16);
-    if (!s->avctx->time_base.den) {
-        av_log(s->avctx, AV_LOG_ERROR, "time_base.den==0\n");
-        s->avctx->time_base.num = 0;
+    s->avctx->framerate.num = get_bits(gb, 16);
+    if (!s->avctx->framerate.num) {
+        av_log(s->avctx, AV_LOG_ERROR, "framerate==0\n");
         return -1;
     }
 
-    ctx->time_increment_bits = av_log2(s->avctx->time_base.den - 1) + 1;
+    ctx->time_increment_bits = av_log2(s->avctx->framerate.num - 1) + 1;
     if (ctx->time_increment_bits < 1)
         ctx->time_increment_bits = 1;
 
     check_marker(gb, "before fixed_vop_rate");
 
     if (get_bits1(gb) != 0)     /* fixed_vop_rate  */
-        s->avctx->time_base.num = get_bits(gb, ctx->time_increment_bits);
+        s->avctx->framerate.den = get_bits(gb, ctx->time_increment_bits);
     else
-        s->avctx->time_base.num = 1;
+        s->avctx->framerate.den = 1;
 
     ctx->t_frame = 0;
 
@@ -2047,8 +2048,7 @@ static int decode_user_data(Mpeg4DecContext *ctx, GetBitContext *gb)
         ctx->xvid_build = build;
 
     if (ctx->xvid_build == -1 && ctx->divx_version == -1 && ctx->lavc_build == -1) {
-        if (s->stream_codec_tag == AV_RL32("XVID") ||
-            s->codec_tag        == AV_RL32("XVID") ||
+        if (s->codec_tag        == AV_RL32("XVID") ||
             s->codec_tag        == AV_RL32("XVIX") ||
             s->codec_tag        == AV_RL32("RMP4") ||
             s->codec_tag        == AV_RL32("ZMP4") ||
@@ -2066,14 +2066,8 @@ static int decode_user_data(Mpeg4DecContext *ctx, GetBitContext *gb)
         ctx->divx_build   = -1;
     }
 
-#if HAVE_MMX
-    if (ctx->xvid_build >= 0                &&
-        s->avctx->idct_algo == FF_IDCT_AUTO &&
-        (av_get_cpu_flags() & AV_CPU_FLAG_MMX)) {
-        s->avctx->idct_algo = FF_IDCT_XVIDMMX;
-        ff_dct_common_init(s);
-    }
-#endif
+    if (CONFIG_MPEG4_DECODER && ctx->xvid_build >= 0)
+        ff_xvid_idct_init(&s->idsp, s->avctx);
 
     return 0;
 }
@@ -2085,8 +2079,8 @@ static int decode_vop_header(Mpeg4DecContext *ctx, GetBitContext *gb)
 
     s->pict_type = get_bits(gb, 2) + AV_PICTURE_TYPE_I;        /* pict type: I = 0 , P = 1 */
     if (s->pict_type == AV_PICTURE_TYPE_B && s->low_delay &&
-        ctx->vol_control_parameters == 0 && !(s->flags & CODEC_FLAG_LOW_DELAY)) {
-        av_log(s->avctx, AV_LOG_ERROR, "low_delay flag incorrectly, clearing it\n");
+        ctx->vol_control_parameters == 0 && !(s->avctx->flags & AV_CODEC_FLAG_LOW_DELAY)) {
+        av_log(s->avctx, AV_LOG_ERROR, "low_delay flag set incorrectly, clearing it\n");
         s->low_delay = 0;
     }
 
@@ -2104,9 +2098,7 @@ static int decode_vop_header(Mpeg4DecContext *ctx, GetBitContext *gb)
 
     if (ctx->time_increment_bits == 0 ||
         !(show_bits(gb, ctx->time_increment_bits + 1) & 1)) {
-        av_log(s->avctx, AV_LOG_ERROR,
-               "hmm, seems the headers are not complete, trying to guess time_increment_bits\n");
-
+        /* Headers seem incomplete; try to guess time_increment_bits. */
         for (ctx->time_increment_bits = 1;
              ctx->time_increment_bits < 16;
              ctx->time_increment_bits++) {
@@ -2118,9 +2110,6 @@ static int decode_vop_header(Mpeg4DecContext *ctx, GetBitContext *gb)
             } else if ((show_bits(gb, ctx->time_increment_bits + 5) & 0x1F) == 0x18)
                 break;
         }
-
-        av_log(s->avctx, AV_LOG_ERROR,
-               "my guess is %d bits ;)\n", ctx->time_increment_bits);
     }
 
     if (IS_3IV1)
@@ -2131,19 +2120,19 @@ static int decode_vop_header(Mpeg4DecContext *ctx, GetBitContext *gb)
     if (s->pict_type != AV_PICTURE_TYPE_B) {
         s->last_time_base = s->time_base;
         s->time_base     += time_incr;
-        s->time = s->time_base * s->avctx->time_base.den + time_increment;
+        s->time = s->time_base * s->avctx->framerate.num + time_increment;
         if (s->workaround_bugs & FF_BUG_UMP4) {
             if (s->time < s->last_non_b_time) {
                 /* header is not mpeg-4-compatible, broken encoder,
                  * trying to workaround */
                 s->time_base++;
-                s->time += s->avctx->time_base.den;
+                s->time += s->avctx->framerate.num;
             }
         }
         s->pp_time         = s->time - s->last_non_b_time;
         s->last_non_b_time = s->time;
     } else {
-        s->time    = (s->last_time_base + time_incr) * s->avctx->time_base.den + time_increment;
+        s->time    = (s->last_time_base + time_incr) * s->avctx->framerate.num + time_increment;
         s->pb_time = s->pp_time - (s->last_non_b_time - s->time);
         if (s->pp_time <= s->pb_time ||
             s->pp_time <= s->pp_time - s->pb_time ||
@@ -2432,7 +2421,7 @@ int ff_mpeg4_decode_picture_header(Mpeg4DecContext *ctx, GetBitContext *gb)
     }
 
 end:
-    if (s->flags & CODEC_FLAG_LOW_DELAY)
+    if (s->avctx->flags & AV_CODEC_FLAG_LOW_DELAY)
         s->low_delay = 1;
     s->avctx->has_b_frames = !s->low_delay;
 
@@ -2527,7 +2516,7 @@ int ff_mpeg4_frame_end(AVCodecContext *avctx, const uint8_t *buf, int buf_size)
             av_fast_malloc(&s->bitstream_buffer,
                            &s->allocated_bitstream_buffer_size,
                            buf_size - current_pos +
-                           FF_INPUT_BUFFER_PADDING_SIZE);
+                           AV_INPUT_BUFFER_PADDING_SIZE);
             if (!s->bitstream_buffer)
                 return AVERROR(ENOMEM);
             memcpy(s->bitstream_buffer, buf + current_pos,
@@ -2544,14 +2533,19 @@ static int mpeg4_update_thread_context(AVCodecContext *dst,
 {
     Mpeg4DecContext *s = dst->priv_data;
     const Mpeg4DecContext *s1 = src->priv_data;
+    int init = s->m.context_initialized;
 
     int ret = ff_mpeg_update_thread_context(dst, src);
 
     if (ret < 0)
         return ret;
 
+    if (CONFIG_MPEG4_DECODER && !init && s1->xvid_build >= 0)
+        ff_xvid_idct_init(&s->m.idsp, dst);
+
     s->shape               = s1->shape;
     s->time_increment_bits = s1->time_increment_bits;
+    s->xvid_build          = s1->xvid_build;
 
     return 0;
 }
@@ -2574,9 +2568,9 @@ static av_cold int decode_init(AVCodecContext *avctx)
     if (!done) {
         done = 1;
 
-        ff_init_rl(&ff_mpeg4_rl_intra, ff_mpeg4_static_rl_table_store[0]);
-        ff_init_rl(&ff_rvlc_rl_inter, ff_mpeg4_static_rl_table_store[1]);
-        ff_init_rl(&ff_rvlc_rl_intra, ff_mpeg4_static_rl_table_store[2]);
+        ff_rl_init(&ff_mpeg4_rl_intra, ff_mpeg4_static_rl_table_store[0]);
+        ff_rl_init(&ff_rvlc_rl_inter, ff_mpeg4_static_rl_table_store[1]);
+        ff_rl_init(&ff_rvlc_rl_intra, ff_mpeg4_static_rl_table_store[2]);
         INIT_VLC_RL(ff_mpeg4_rl_intra, 554);
         INIT_VLC_RL(ff_rvlc_rl_inter, 1072);
         INIT_VLC_RL(ff_rvlc_rl_intra, 1072);
@@ -2633,9 +2627,9 @@ AVCodec ff_mpeg4_decoder = {
     .init                  = decode_init,
     .close                 = ff_h263_decode_end,
     .decode                = ff_h263_decode_frame,
-    .capabilities          = CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1 |
-                             CODEC_CAP_TRUNCATED | CODEC_CAP_DELAY |
-                             CODEC_CAP_FRAME_THREADS,
+    .capabilities          = AV_CODEC_CAP_DRAW_HORIZ_BAND | AV_CODEC_CAP_DR1 |
+                             AV_CODEC_CAP_TRUNCATED | AV_CODEC_CAP_DELAY |
+                             AV_CODEC_CAP_FRAME_THREADS,
     .flush                 = ff_mpeg_flush,
     .pix_fmts              = ff_h263_hwaccel_pixfmt_list_420,
     .profiles              = NULL_IF_CONFIG_SMALL(mpeg4_video_profiles),