quicktime/qtffmpeg.h

   1 #ifndef QTFFMPEG_H
   2 #define QTFFMPEG_H
   3
   4
   5
   6 // This must be separate from qtprivate.h to keep everyone from
   7 // depending on avcodec.h
   8 // FFMPEG front end for quicktime.
   9 // Getting ffmpeg to do all the things it needs to do is so labor
  10 // intensive, we have a front end for the ffmpeg front end.
  11
  12
  13 // This front end is bastardized to support alternating fields with
  14 // alternating ffmpeg instances.  It drastically reduces the bitrate
  15 // required to store interlaced video but nothing can read it but
  16 // Heroine Virtual.
  17
  18
  19
  20 #include "avcodec.h"
  21 #include "qtprivate.h"
  22
  23
  24
  25 typedef struct
  26 {
  27 #define FIELDS 2
  28 // Encoding
  29     AVCodec *encoder[FIELDS];
  30         AVCodecContext *encoder_context[FIELDS];
  31
  32
  33 // Decoding
  34     AVCodec *decoder[FIELDS];
  35         AVCodecContext *decoder_context[FIELDS];
  36     AVFrame picture[FIELDS];
  37
  38 // Last frame decoded
  39         int64_t last_frame[FIELDS];
  40 // Rounded dimensions
  41         int width_i;
  42         int height_i;
  43 // Original dimensions
  44         int width;
  45         int height;
  46         int fields;
  47
  48
  49 // Temporary storage for color conversions
  50         char *temp_frame;
  51 // Storage of compressed data
  52         unsigned char *work_buffer;
  53 // Allocation of work_buffer
  54         int buffer_size;
  55         int ffmpeg_id;
  56 } quicktime_ffmpeg_t;
  57
  58 extern int ffmpeg_initialized;
  59 extern pthread_mutex_t ffmpeg_lock;
  60
  61
  62 quicktime_ffmpeg_t* quicktime_new_ffmpeg(
  63         int cpus,
  64         int fields,
  65         int ffmpeg_id,
  66         int w,
  67         int h,
  68 // FFmpeg needs this for the header
  69         quicktime_stsd_table_t *stsd_table);
  70 void quicktime_delete_ffmpeg(quicktime_ffmpeg_t *ptr);
  71 int quicktime_ffmpeg_decode(quicktime_ffmpeg_t *ffmpeg,
  72         quicktime_t *file,
  73         unsigned char **row_pointers,
  74         int track);
  75
  76
  77
  78 #endif
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