X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavcodec%2Finternal.h;h=231d4b68092e5a30f00583734a90f04842d185fe;hb=e00eb03cd8bfb6993d33c30ccd560947b5f6bad5;hp=fe853ab87ec55fdb5c51531dc0a22d1dde900e1f;hpb=2912e87a6c9264d556734e2bf94a99c64cf9b102;p=ffmpeg

diff --git a/libavcodec/internal.h b/libavcodec/internal.h
index fe853ab87ec..231d4b68092 100644
--- a/libavcodec/internal.h
+++ b/libavcodec/internal.h
@@ -25,12 +25,70 @@
 #define AVCODEC_INTERNAL_H
 
 #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 AVPixelFormat pix_fmt;
+    uint8_t **extended_data;
+    int audio_data_size;
+    int nb_channels;
+} InternalBuffer;
+
+typedef struct AVCodecInternal {
+    /**
+     * internal buffer count
+     * used by default get/release/reget_buffer().
+     */
+    int buffer_count;
+
+    /**
+     * internal buffers
+     * used by default get/release/reget_buffer().
+     */
+    InternalBuffer *buffer;
+
+    /**
+     * Whether the parent AVCodecContext is a copy of the context which had
+     * init() called on it.
+     * This is used by multithreading - shared tables and picture pointers
+     * 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;
+} AVCodecInternal;
+
+struct AVCodecDefault {
+    const uint8_t *key;
+    const uint8_t *value;
+};
+
 /**
  * Determine whether pix_fmt is a hardware accelerated format.
  */
-int ff_is_hwaccel_pix_fmt(enum PixelFormat pix_fmt);
+int ff_is_hwaccel_pix_fmt(enum AVPixelFormat pix_fmt);
 
 /**
  * Return the hardware accelerated codec for codec codec_id and
@@ -40,7 +98,7 @@ 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.
@@ -48,6 +106,44 @@ AVHWAccel *ff_find_hwaccel(enum CodecID codec_id, enum PixelFormat pix_fmt);
  */
 int ff_match_2uint16(const uint16_t (*tab)[2], int size, int a, int b);
 
-unsigned int ff_toupper4(unsigned int x);
+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);
+}
 
 #endif /* AVCODEC_INTERNAL_H */