h264: check sps.log2_max_frame_num for validity

[ffmpeg] / libavcodec / ac3enc_template.c

diff --git a/libavcodec/ac3enc_template.c b/libavcodec/ac3enc_template.c
index bc06c2f46fac28929104a1e4e61574ea86901600..388d75377e8d6f60adfb253408a58ac2dcfbdfba 100644 (file)
--- a/libavcodec/ac3enc_template.c
+++ b/libavcodec/ac3enc_template.c
@@ -33,7 +33,7 @@
 
 static void scale_coefficients(AC3EncodeContext *s);
 
-static void apply_window(DSPContext *dsp, SampleType *output,
+static void apply_window(void *dsp, SampleType *output,
                          const SampleType *input, const SampleType *window,
                          unsigned int len);
 
@@ -65,30 +65,23 @@ alloc_fail:
 
 
 /*
- * Deinterleave input samples.
+ * Copy input samples.
  * Channels are reordered from Libav's default order to AC-3 order.
  */
-static void deinterleave_input_samples(AC3EncodeContext *s,
-                                       const SampleType *samples)
+static void copy_input_samples(AC3EncodeContext *s, SampleType **samples)
 {
-    int ch, i;
+    int ch;
 
-    /* deinterleave and remap input samples */
+    /* copy and remap input samples */
     for (ch = 0; ch < s->channels; ch++) {
-        const SampleType *sptr;
-        int sinc;
-
         /* copy last 256 samples of previous frame to the start of the current frame */
         memcpy(&s->planar_samples[ch][0], &s->planar_samples[ch][AC3_BLOCK_SIZE * s->num_blocks],
                AC3_BLOCK_SIZE * sizeof(s->planar_samples[0][0]));
 
-        /* deinterleave */
-        sinc = s->channels;
-        sptr = samples + s->channel_map[ch];
-        for (i = AC3_BLOCK_SIZE; i < AC3_BLOCK_SIZE * (s->num_blocks + 1); i++) {
-            s->planar_samples[ch][i] = *sptr;
-            sptr += sinc;
-        }
+        /* copy new samples for current frame */
+        memcpy(&s->planar_samples[ch][AC3_BLOCK_SIZE],
+               samples[s->channel_map[ch]],
+               AC3_BLOCK_SIZE * s->num_blocks * sizeof(s->planar_samples[0][0]));
     }
 }
 
@@ -107,8 +100,13 @@ static void apply_mdct(AC3EncodeContext *s)
             AC3Block *block = &s->blocks[blk];
             const SampleType *input_samples = &s->planar_samples[ch][blk * AC3_BLOCK_SIZE];
 
+#if CONFIG_AC3ENC_FLOAT
+            apply_window(&s->fdsp, s->windowed_samples, input_samples,
+                         s->mdct_window, AC3_WINDOW_SIZE);
+#else
             apply_window(&s->dsp, s->windowed_samples, input_samples,
                          s->mdct_window, AC3_WINDOW_SIZE);
+#endif
 
             if (s->fixed_point)
                 block->coeff_shift[ch+1] = normalize_samples(s);
@@ -391,11 +389,10 @@ static void compute_rematrixing_strategy(AC3EncodeContext *s)
 }
 
 
-int AC3_NAME(encode_frame)(AVCodecContext *avctx, unsigned char *frame,
-                           int buf_size, void *data)
+int AC3_NAME(encode_frame)(AVCodecContext *avctx, AVPacket *avpkt,
+                           const AVFrame *frame, int *got_packet_ptr)
 {
     AC3EncodeContext *s = avctx->priv_data;
-    const SampleType *samples = data;
     int ret;
 
     if (s->options.allow_per_frame_metadata) {
@@ -407,7 +404,7 @@ int AC3_NAME(encode_frame)(AVCodecContext *avctx, unsigned char *frame,
     if (s->bit_alloc.sr_code == 1 || s->eac3)
         ff_ac3_adjust_frame_size(s);
 
-    deinterleave_input_samples(s, samples);
+    copy_input_samples(s, (SampleType **)frame->extended_data);
 
     apply_mdct(s);
 
@@ -442,7 +439,15 @@ int AC3_NAME(encode_frame)(AVCodecContext *avctx, unsigned char *frame,
 
     ff_ac3_quantize_mantissas(s);
 
-    ff_ac3_output_frame(s, frame);
+    if ((ret = ff_alloc_packet(avpkt, s->frame_size))) {
+        av_log(avctx, AV_LOG_ERROR, "Error getting output packet\n");
+        return ret;
+    }
+    ff_ac3_output_frame(s, avpkt->data);
 
-    return s->frame_size;
+    if (frame->pts != AV_NOPTS_VALUE)
+        avpkt->pts = frame->pts - ff_samples_to_time_base(avctx, avctx->delay);
+
+    *got_packet_ptr = 1;
+    return 0;
 }