static int libschroedinger_encode_close(AVCodecContext *avccontext)
{
SchroEncoderParams *p_schro_params = avccontext->priv_data;
/* Close the encoder. */
schro_encoder_free(p_schro_params->encoder);
/* Free data in the output frame queue. */
ff_schro_queue_free(&p_schro_params->enc_frame_queue,
libschroedinger_free_frame);
/* Free the encoder buffer. */
if (p_schro_params->enc_buf_size)
av_freep(&p_schro_params->enc_buf);
/* Free the video format structure. */
av_freep(&p_schro_params->format);
return 0;
}
static bool
RunTest(int bit_depth)
{
bool result = true;
const int seq_len = 5;
const int width = 100;
const int height = 10;
int luma_min = 16;
int luma_max = 235;
int chroma_zero = 128;
schro_init();
// set up encoder
SchroEncoder *encoder = schro_encoder_new();
schro_encoder_setting_set_double(encoder, "gop_structure", SCHRO_ENCODER_GOP_INTRA_ONLY);
schro_encoder_setting_set_double(encoder, "rate_control", SCHRO_ENCODER_RATE_CONTROL_LOSSLESS);
//schro_encoder_setting_set_double(encoder, "force_profile", SCHRO_ENCODER_PROFILE_VC2_SIMPLE);
//schro_encoder_setting_set_double(encoder, "queue_depth", seq_len);
//assert(seq_len <= SCHRO_LIMIT_FRAME_QUEUE_LENGTH);
SchroVideoFormat *format = schro_encoder_get_video_format(encoder);
if(format)
{
format->width = width;
format->height = height;
format->clean_width = format->width;
format->clean_height = format->height;
format->left_offset = 0;
format->top_offset = 0;
format->chroma_format = SCHRO_CHROMA_444;
const SchroSignalRange range = (bit_depth == 12 ? SCHRO_SIGNAL_RANGE_12BIT_VIDEO :
bit_depth == 10 ? SCHRO_SIGNAL_RANGE_10BIT_VIDEO :
SCHRO_SIGNAL_RANGE_8BIT_VIDEO);
schro_video_format_set_std_signal_range(format, range);
luma_min = format->luma_offset;
luma_max = format->luma_offset + format->luma_excursion;
chroma_zero = format->chroma_offset;
format->colour_primaries = SCHRO_COLOUR_PRIMARY_HDTV;
format->colour_matrix = SCHRO_COLOUR_MATRIX_HDTV;
format->transfer_function = SCHRO_TRANSFER_CHAR_TV_GAMMA;
format->interlaced = false;
format->frame_rate_numerator = 24;
format->frame_rate_denominator = 1;
format->aspect_ratio_numerator = 1;
format->aspect_ratio_denominator = 1;
schro_encoder_set_video_format(encoder, format);
free(format);
}
else
return false;
schro_encoder_start(encoder);
// create frame
SchroFrame *start_frame = schro_frame_new_and_alloc(NULL, SCHRO_FRAME_FORMAT_U8_444, width, height);
FillFrame<unsigned char>(start_frame, 16, 235, 128);
const SchroFrameFormat schro_format = (bit_depth > 8 ? SCHRO_FRAME_FORMAT_S16_444 : SCHRO_FRAME_FORMAT_U8_444);
SchroFrame *original_frame = schro_frame_new_and_alloc(NULL, schro_format, width, height);
schro_frame_convert(original_frame, start_frame);
SchroDecoder *decoder = schro_decoder_new();
// push frames to encoder
for(int t = 0; t < seq_len; t++)
{
SchroFrame *new_frame = schro_frame_dup(original_frame);
schro_encoder_push_frame(encoder, new_frame);
}
// pull packets out of encoder, pass to decoder
int packets_out = 0;
while(packets_out < seq_len)
{
SchroStateEnum encoder_state = schro_encoder_wait(encoder);
if(encoder_state == SCHRO_STATE_HAVE_BUFFER || encoder_state == SCHRO_STATE_END_OF_STREAM)
{
int n_decodable_frames = -1;
SchroBuffer *buffer = schro_encoder_pull(encoder, &n_decodable_frames);
if(buffer)
{
const int parse_code = buffer->data[4];
if(SCHRO_PARSE_CODE_IS_SEQ_HEADER(parse_code) ||
SCHRO_PARSE_CODE_IS_AUXILIARY_DATA(parse_code) ||
SCHRO_PARSE_CODE_IS_PICTURE(parse_code))
{
schro_decoder_push(decoder, buffer);
//schro_buffer_unref(buffer);
if(SCHRO_PARSE_CODE_IS_PICTURE(parse_code))
{
packets_out++;
}
}
}
}
else
{
assert(encoder_state == SCHRO_STATE_NEED_FRAME);
assert(encoder_state != SCHRO_STATE_AGAIN); // yeah, redundant
schro_encoder_end_of_stream(encoder);
}
}
// pull frames out of decoder
int frames_out = 0;
while(frames_out < seq_len)
{
int decoder_state = schro_decoder_wait(decoder);
if(decoder_state == SCHRO_DECODER_FIRST_ACCESS_UNIT)
{
SchroVideoFormat *format = schro_decoder_get_video_format(decoder);
if(format)
{
assert(format->width == width);
assert(format->height == height);
assert(format->chroma_format == SCHRO_CHROMA_444);
assert(format->luma_offset == luma_min);
assert(format->luma_offset + format->luma_excursion == luma_max);
assert(format->chroma_offset = chroma_zero);
free(format);
}
}
else if(decoder_state == SCHRO_DECODER_NEED_BITS)
{
schro_decoder_push_end_of_stream(decoder);
}
else if(decoder_state == SCHRO_DECODER_NEED_FRAME)
{
SchroFrame *decoder_frame = schro_frame_new_and_alloc(NULL, schro_format, width, height);
schro_decoder_add_output_picture(decoder, decoder_frame);
}
else if(decoder_state == SCHRO_DECODER_OK || decoder_state == SCHRO_DECODER_EOS)
{
SchroFrame *decoder_frame = schro_decoder_pull(decoder);
if(decoder_frame)
{
frames_out++;
bool match = CompareFrames(decoder_frame, original_frame);
//std::cout << (match ? "Match!" : "No Match!") << " " << std::endl;
if(!match)
{
// output doesn't match input, so print the values of the
// first line of the first component to see what went in and out
PrintFirstLine(original_frame);
std::cout << "==========" << std::endl;
PrintFirstLine(decoder_frame);
std::cout << "==========" << std::endl;
result = false;
}
schro_frame_unref(decoder_frame);
}
}
}
schro_frame_unref(original_frame);
schro_frame_unref(start_frame);
schro_decoder_free(decoder);
schro_encoder_free(encoder);
return result;
}