mpegvideo: increase edge_emu_buffer size for VC1

[ffmpeg] / libavcodec / internal.h

diff --git a/libavcodec/internal.h b/libavcodec/internal.h
index b5a04546f3d12ad2ce550842ff405d6d040ba13d..069a855a746617342d86ea2ed5cafc157b666580 100644 (file)
--- a/libavcodec/internal.h
+++ b/libavcodec/internal.h
@@ -26,19 +26,19 @@
 
 #include <stdint.h>
 
+#include "libavutil/mathematics.h"
 #include "libavutil/pixfmt.h"
 #include "avcodec.h"
 
+#define FF_SANE_NB_CHANNELS 128U
+
 typedef struct InternalBuffer {
     uint8_t *base[AV_NUM_DATA_POINTERS];
     uint8_t *data[AV_NUM_DATA_POINTERS];
     int linesize[AV_NUM_DATA_POINTERS];
     int width;
     int height;
-    enum PixelFormat pix_fmt;
-    uint8_t **extended_data;
-    int audio_data_size;
-    int nb_channels;
+    enum AVPixelFormat pix_fmt;
 } InternalBuffer;
 
 typedef struct AVCodecInternal {
@@ -61,6 +61,26 @@ typedef struct AVCodecInternal {
      * should be freed from the original context only.
      */
     int is_copy;
+
+#if FF_API_OLD_DECODE_AUDIO
+    /**
+     * Internal sample count used by avcodec_encode_audio() to fabricate pts.
+     * Can be removed along with avcodec_encode_audio().
+     */
+    int sample_count;
+#endif
+
+    /**
+     * An audio frame with less than required samples has been submitted and
+     * padded with silence. Reject all subsequent frames.
+     */
+    int last_audio_frame;
+
+    /**
+     * The data for the last allocated audio frame.
+     * Stored here so we can free it.
+     */
+    uint8_t *audio_data;
 } AVCodecInternal;
 
 struct AVCodecDefault {
@@ -68,11 +88,6 @@ struct AVCodecDefault {
     const uint8_t *value;
 };
 
-/**
- * Determine whether pix_fmt is a hardware accelerated format.
- */
-int ff_is_hwaccel_pix_fmt(enum PixelFormat pix_fmt);
-
 /**
  * Return the hardware accelerated codec for codec codec_id and
  * pixel format pix_fmt.
@@ -81,7 +96,7 @@ int ff_is_hwaccel_pix_fmt(enum PixelFormat pix_fmt);
  * @param pix_fmt the pixel format to match
  * @return the hardware accelerated codec, or NULL if none was found.
  */
-AVHWAccel *ff_find_hwaccel(enum CodecID codec_id, enum PixelFormat pix_fmt);
+AVHWAccel *ff_find_hwaccel(enum AVCodecID codec_id, enum AVPixelFormat pix_fmt);
 
 /**
  * Return the index into tab at which {a,b} match elements {[0],[1]} of tab.
@@ -94,4 +109,46 @@ unsigned int avpriv_toupper4(unsigned int x);
 int avpriv_lock_avformat(void);
 int avpriv_unlock_avformat(void);
 
+/**
+ * Maximum size in bytes of extradata.
+ * This value was chosen such that every bit of the buffer is
+ * addressable by a 32-bit signed integer as used by get_bits.
+ */
+#define FF_MAX_EXTRADATA_SIZE ((1 << 28) - FF_INPUT_BUFFER_PADDING_SIZE)
+
+/**
+ * Check AVPacket size and/or allocate data.
+ *
+ * Encoders supporting AVCodec.encode2() can use this as a convenience to
+ * ensure the output packet data is large enough, whether provided by the user
+ * or allocated in this function.
+ *
+ * @param avpkt   the AVPacket
+ *                If avpkt->data is already set, avpkt->size is checked
+ *                to ensure it is large enough.
+ *                If avpkt->data is NULL, a new buffer is allocated.
+ *                avpkt->size is set to the specified size.
+ *                All other AVPacket fields will be reset with av_init_packet().
+ * @param size    the minimum required packet size
+ * @return        0 on success, negative error code on failure
+ */
+int ff_alloc_packet(AVPacket *avpkt, int size);
+
+/**
+ * Rescale from sample rate to AVCodecContext.time_base.
+ */
+static av_always_inline int64_t ff_samples_to_time_base(AVCodecContext *avctx,
+                                                        int64_t samples)
+{
+    return av_rescale_q(samples, (AVRational){ 1, avctx->sample_rate },
+                        avctx->time_base);
+}
+
+/**
+ * Get a buffer for a frame. This is a wrapper around
+ * AVCodecContext.get_buffer() and should be used instead calling get_buffer()
+ * directly.
+ */
+int ff_get_buffer(AVCodecContext *avctx, AVFrame *frame);
+
 #endif /* AVCODEC_INTERNAL_H */