#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);
-
/**
* Return the hardware accelerated codec for codec codec_id and
* pixel format 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.
*/
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 */