18 #include "common/tools_common.h" 
   19 #include "common/video_writer.h" 
   21 static const char *exec_name;
 
   23 void usage_exit(
void) {
 
   25           "lossless_encoder: Example demonstrating lossless " 
   26           "encoding feature. Supports raw input only.\n");
 
   27   fprintf(stderr, 
"Usage: %s <width> <height> <infile> <outfile>\n", exec_name);
 
   32                         int frame_index, 
int flags, AvxVideoWriter *writer) {
 
   38   if (res != 
AOM_CODEC_OK) die_codec(codec, 
"Failed to encode frame");
 
   45       if (!aom_video_writer_write_frame(writer, pkt->
data.
frame.buf,
 
   48         die_codec(codec, 
"Failed to write compressed frame");
 
   50       printf(keyframe ? 
"K" : 
".");
 
   58 int main(
int argc, 
char **argv) {
 
   66   AvxVideoWriter *writer = NULL;
 
   67   const AvxInterface *encoder = NULL;
 
   74   memset(&info, 0, 
sizeof(info));
 
   76   if (argc < 5) die(
"Invalid number of arguments");
 
   78   encoder = get_aom_encoder_by_name(
"av1");
 
   79   if (!encoder) die(
"Unsupported codec.");
 
   81   info.codec_fourcc = encoder->fourcc;
 
   82   info.frame_width = (int)strtol(argv[1], NULL, 0);
 
   83   info.frame_height = (int)strtol(argv[2], NULL, 0);
 
   84   info.time_base.numerator = 1;
 
   85   info.time_base.denominator = fps;
 
   87   if (info.frame_width <= 0 || info.frame_height <= 0 ||
 
   88       (info.frame_width % 2) != 0 || (info.frame_height % 2) != 0) {
 
   89     die(
"Invalid frame size: %dx%d", info.frame_width, info.frame_height);
 
   93                      info.frame_height, 1)) {
 
   94     die(
"Failed to allocate image.");
 
  100   if (res) die_codec(&codec, 
"Failed to get default codec config.");
 
  102   cfg.
g_w = info.frame_width;
 
  103   cfg.
g_h = info.frame_height;
 
  107   writer = aom_video_writer_open(argv[4], kContainerIVF, &info);
 
  108   if (!writer) die(
"Failed to open %s for writing.", argv[4]);
 
  110   if (!(infile = fopen(argv[3], 
"rb")))
 
  111     die(
"Failed to open %s for reading.", argv[3]);
 
  114     die_codec(&codec, 
"Failed to initialize encoder");
 
  117     die_codec(&codec, 
"Failed to use lossless mode");
 
  120   while (aom_img_read(&raw, infile)) {
 
  121     encode_frame(&codec, &raw, frame_count++, 0, writer);
 
  125   while (encode_frame(&codec, NULL, -1, 0, writer)) {
 
  130   printf(
"Processed %d frames.\n", frame_count);
 
  135   aom_video_writer_close(writer);
 
   
 
@ AOM_IMG_FMT_I420
Definition: aom_image.h:45
Encoder configuration structure.
Definition: aom_encoder.h:369
#define AOM_CODEC_CONTROL_TYPECHECKED(ctx, id, data)
aom_codec_control wrapper macro (adds type-checking, less flexible)
Definition: aom_codec.h:426
Codec context structure.
Definition: aom_codec.h:219
Provides definitions for using AOM or AV1 encoder algorithm within the aom Codec Interface.
@ AOM_CODEC_OK
Operation completed without error.
Definition: aom_codec.h:103
void aom_img_free(aom_image_t *img)
Close an image descriptor.
const char * aom_codec_iface_name(aom_codec_iface_t *iface)
Return the name for a given interface.
int den
Definition: aom_encoder.h:173
aom_codec_err_t aom_codec_destroy(aom_codec_ctx_t *ctx)
Destroy a codec instance.
aom_image_t * aom_img_alloc(aom_image_t *img, aom_img_fmt_t fmt, unsigned int d_w, unsigned int d_h, unsigned int align)
Open a descriptor, allocating storage for the underlying image.
aom_codec_err_t aom_codec_enc_config_default(aom_codec_iface_t *iface, aom_codec_enc_cfg_t *cfg, unsigned int usage)
Get the default configuration for a usage.
unsigned int g_w
Width of the frame.
Definition: aom_encoder.h:408
aom_codec_err_t
Algorithm return codes.
Definition: aom_codec.h:101
Describes the encoder algorithm interface to applications.
const aom_codec_cx_pkt_t * aom_codec_get_cx_data(aom_codec_ctx_t *ctx, aom_codec_iter_t *iter)
Encoded data iterator.
aom_codec_err_t aom_codec_encode(aom_codec_ctx_t *ctx, const aom_image_t *img, aom_codec_pts_t pts, unsigned long duration, aom_enc_frame_flags_t flags)
Encode a frame.
union aom_codec_cx_pkt::@1 data
struct aom_codec_cx_pkt::@1::@2 frame
Encoder output packet.
Definition: aom_encoder.h:131
const void * aom_codec_iter_t
Iterator.
Definition: aom_codec.h:209
unsigned int g_h
Height of the frame.
Definition: aom_encoder.h:417
@ AOM_CODEC_CX_FRAME_PKT
Definition: aom_encoder.h:119
#define aom_codec_enc_init(ctx, iface, cfg, flags)
Convenience macro for aom_codec_enc_init_ver()
Definition: aom_encoder.h:941
Image Descriptor.
Definition: aom_image.h:171
@ AV1E_SET_LOSSLESS
Codec control function to set lossless encoding mode, unsigned int parameter.
Definition: aomcx.h:316
enum aom_codec_cx_pkt_kind kind
Definition: aom_encoder.h:132
struct aom_rational g_timebase
Stream timebase units.
Definition: aom_encoder.h:466
#define AOM_FRAME_IS_KEY
Definition: aom_encoder.h:89
int num
Definition: aom_encoder.h:172