if (ctx->trace_enable)
position = put_bits_count(pbc);
- if (value == 0) {
- zeroes = 0;
- put_bits(pbc, 1, 1);
- } else {
- zeroes = av_log2(value + 1);
- v = value - (1 << zeroes) + 1;
- put_bits(pbc, zeroes + 1, 1);
- put_bits(pbc, zeroes, v);
- }
+ zeroes = av_log2(value + 1);
+ v = value - (1U << zeroes) + 1;
+ put_bits(pbc, zeroes, 0);
+ put_bits(pbc, 1, 1);
+ put_bits(pbc, zeroes, v);
if (ctx->trace_enable) {
char bits[65];
break;
}
+ if (value > UINT32_MAX)
+ return AVERROR_INVALIDDATA;
+
if (ctx->trace_enable)
ff_cbs_trace_syntax_element(ctx, position, name, NULL, "", value);
uint32_t n, const char *name,
const int *subscripts, uint32_t *write_to)
{
- uint32_t w, m, v, extra_bit, value;
- int position;
+ uint32_t m, v, extra_bit, value;
+ int position, w;
av_assert0(n > 0);
#define SUBSCRIPTS(subs, ...) (subs > 0 ? ((int[subs + 1]){ subs, __VA_ARGS__ }) : NULL)
#define fb(width, name) \
- xf(width, name, current->name, 0, MAX_UINT_BITS(width), 0)
+ xf(width, name, current->name, 0, MAX_UINT_BITS(width), 0, )
#define fc(width, name, range_min, range_max) \
- xf(width, name, current->name, range_min, range_max, 0)
+ xf(width, name, current->name, range_min, range_max, 0, )
#define flag(name) fb(1, name)
#define su(width, name) \
- xsu(width, name, current->name, 0)
+ xsu(width, name, current->name, 0, )
#define fbs(width, name, subs, ...) \
xf(width, name, current->name, 0, MAX_UINT_BITS(width), subs, __VA_ARGS__)
#define fixed(width, name, value) do { \
av_unused uint32_t fixed_value = value; \
- xf(width, name, fixed_value, value, value, 0); \
+ xf(width, name, fixed_value, value, value, 0, ); \
} while (0)
#define delta_q(name) do { \
uint8_t delta_coded; \
int8_t delta_q; \
- xf(1, name.delta_coded, delta_coded, 0, 1, 0); \
+ xf(1, name.delta_coded, delta_coded, 0, 1, 0, ); \
if (delta_coded) \
- xsu(1 + 6, name.delta_q, delta_q, 0); \
+ xsu(1 + 6, name.delta_q, delta_q, 0, ); \
else \
delta_q = 0; \
current->name = delta_q; \
} while (0)
#define delta_q(name) do { \
- xf(1, name.delta_coded, current->name != 0, 0, 1, 0); \
+ xf(1, name.delta_coded, current->name != 0, 0, 1, 0, ); \
if (current->name) \
- xsu(1 + 6, name.delta_q, current->name, 0); \
+ xsu(1 + 6, name.delta_q, current->name, 0, ); \
} while (0)
#define leb128(name) do { \
#define infer(name, value) do { \
if (current->name != (value)) { \
- av_log(ctx->log_ctx, AV_LOG_WARNING, "Warning: " \
+ av_log(ctx->log_ctx, AV_LOG_ERROR, \
"%s does not match inferred value: " \
"%"PRId64", but should be %"PRId64".\n", \
#name, (int64_t)current->name, (int64_t)(value)); \
+ return AVERROR_INVALIDDATA; \
} \
} while (0)
if (err < 0)
goto fail;
- if (get_bits_left(&gbc) < 8) {
- av_log(ctx->log_ctx, AV_LOG_ERROR, "Invalid OBU: fragment "
- "too short (%"SIZE_SPECIFIER" bytes).\n", size);
- err = AVERROR_INVALIDDATA;
- goto fail;
- }
-
if (header.obu_has_size_field) {
+ if (get_bits_left(&gbc) < 8) {
+ av_log(ctx->log_ctx, AV_LOG_ERROR, "Invalid OBU: fragment "
+ "too short (%"SIZE_SPECIFIER" bytes).\n", size);
+ err = AVERROR_INVALIDDATA;
+ goto fail;
+ }
err = cbs_av1_read_leb128(ctx, &gbc, "obu_size", &obu_size);
if (err < 0)
goto fail;
priv->spatial_id = 0;
}
+ priv->ref = (AV1ReferenceFrameState *)&priv->read_ref;
+
switch (obu->header.obu_type) {
case AV1_OBU_SEQUENCE_HEADER:
{
if (obu->obu_size > 0 &&
obu->header.obu_type != AV1_OBU_TILE_GROUP &&
+ obu->header.obu_type != AV1_OBU_TILE_LIST &&
obu->header.obu_type != AV1_OBU_FRAME) {
int nb_bits = obu->obu_size * 8 + start_pos - end_pos;
td = NULL;
start_pos = put_bits_count(pbc);
+ priv->ref = (AV1ReferenceFrameState *)&priv->write_ref;
+
switch (obu->header.obu_type) {
case AV1_OBU_SEQUENCE_HEADER:
{
return AVERROR(ENOSPC);
if (obu->obu_size > 0) {
- memmove(priv->write_buffer + data_pos,
- priv->write_buffer + start_pos, header_size);
+ memmove(pbc->buf + data_pos,
+ pbc->buf + start_pos, header_size);
skip_put_bytes(pbc, header_size);
if (td) {
- memcpy(priv->write_buffer + data_pos + header_size,
+ memcpy(pbc->buf + data_pos + header_size,
td->data, td->data_size);
skip_put_bytes(pbc, td->data_size);
}
}
- return 0;
-}
-
-static int cbs_av1_write_unit(CodedBitstreamContext *ctx,
- CodedBitstreamUnit *unit)
-{
- CodedBitstreamAV1Context *priv = ctx->priv_data;
- PutBitContext pbc;
- int err;
-
- if (!priv->write_buffer) {
- // Initial write buffer size is 1MB.
- priv->write_buffer_size = 1024 * 1024;
-
- reallocate_and_try_again:
- err = av_reallocp(&priv->write_buffer, priv->write_buffer_size);
- if (err < 0) {
- av_log(ctx->log_ctx, AV_LOG_ERROR, "Unable to allocate a "
- "sufficiently large write buffer (last attempt "
- "%"SIZE_SPECIFIER" bytes).\n", priv->write_buffer_size);
- return err;
- }
- }
-
- init_put_bits(&pbc, priv->write_buffer, priv->write_buffer_size);
-
- err = cbs_av1_write_obu(ctx, unit, &pbc);
- if (err == AVERROR(ENOSPC)) {
- // Overflow.
- priv->write_buffer_size *= 2;
- goto reallocate_and_try_again;
- }
- if (err < 0)
- return err;
-
- // Overflow but we didn't notice.
- av_assert0(put_bits_count(&pbc) <= 8 * priv->write_buffer_size);
-
// OBU data must be byte-aligned.
- av_assert0(put_bits_count(&pbc) % 8 == 0);
-
- unit->data_size = put_bits_count(&pbc) / 8;
- flush_put_bits(&pbc);
-
- err = ff_cbs_alloc_unit_data(ctx, unit, unit->data_size);
- if (err < 0)
- return err;
-
- memcpy(unit->data, priv->write_buffer, unit->data_size);
+ av_assert0(put_bits_count(pbc) % 8 == 0);
return 0;
}
av_buffer_unref(&priv->sequence_header_ref);
av_buffer_unref(&priv->frame_header_ref);
-
- av_freep(&priv->write_buffer);
}
const CodedBitstreamType ff_cbs_type_av1 = {
.split_fragment = &cbs_av1_split_fragment,
.read_unit = &cbs_av1_read_unit,
- .write_unit = &cbs_av1_write_unit,
+ .write_unit = &cbs_av1_write_obu,
.assemble_fragment = &cbs_av1_assemble_fragment,
.close = &cbs_av1_close,
projects / ffmpeg / blobdiff