#include "bytestream.h"
#include "hevc.h"
+#include "h264.h"
#include "h2645_parse.h"
int ff_h2645_extract_rbsp(const uint8_t *src, int length,
i++
#if HAVE_FAST_64BIT
for (i = 0; i + 1 < length; i += 9) {
- if (!((~AV_RN64A(src + i) &
- (AV_RN64A(src + i) - 0x0100010001000101ULL)) &
+ if (!((~AV_RN64(src + i) &
+ (AV_RN64(src + i) - 0x0100010001000101ULL)) &
0x8000800080008080ULL))
continue;
FIND_FIRST_ZERO;
}
#else
for (i = 0; i + 1 < length; i += 5) {
- if (!((~AV_RN32A(src + i) &
- (AV_RN32A(src + i) - 0x01000101U)) &
+ if (!((~AV_RN32(src + i) &
+ (AV_RN32(src + i) - 0x01000101U)) &
0x80008080U))
continue;
FIND_FIRST_ZERO;
return si;
}
-static const char *nal_unit_name(int nal_type)
+static const char *const hevc_nal_type_name[64] = {
+ "TRAIL_N", // HEVC_NAL_TRAIL_N
+ "TRAIL_R", // HEVC_NAL_TRAIL_R
+ "TSA_N", // HEVC_NAL_TSA_N
+ "TSA_R", // HEVC_NAL_TSA_R
+ "STSA_N", // HEVC_NAL_STSA_N
+ "STSA_R", // HEVC_NAL_STSA_R
+ "RADL_N", // HEVC_NAL_RADL_N
+ "RADL_R", // HEVC_NAL_RADL_R
+ "RASL_N", // HEVC_NAL_RASL_N
+ "RASL_R", // HEVC_NAL_RASL_R
+ "RSV_VCL_N10", // HEVC_NAL_VCL_N10
+ "RSV_VCL_R11", // HEVC_NAL_VCL_R11
+ "RSV_VCL_N12", // HEVC_NAL_VCL_N12
+ "RSV_VLC_R13", // HEVC_NAL_VCL_R13
+ "RSV_VCL_N14", // HEVC_NAL_VCL_N14
+ "RSV_VCL_R15", // HEVC_NAL_VCL_R15
+ "BLA_W_LP", // HEVC_NAL_BLA_W_LP
+ "BLA_W_RADL", // HEVC_NAL_BLA_W_RADL
+ "BLA_N_LP", // HEVC_NAL_BLA_N_LP
+ "IDR_W_RADL", // HEVC_NAL_IDR_W_RADL
+ "IDR_N_LP", // HEVC_NAL_IDR_N_LP
+ "CRA_NUT", // HEVC_NAL_CRA_NUT
+ "RSV_IRAP_VCL22", // HEVC_NAL_RSV_IRAP_VCL22
+ "RSV_IRAP_VCL23", // HEVC_NAL_RSV_IRAP_VCL23
+ "RSV_VCL24", // HEVC_NAL_RSV_VCL24
+ "RSV_VCL25", // HEVC_NAL_RSV_VCL25
+ "RSV_VCL26", // HEVC_NAL_RSV_VCL26
+ "RSV_VCL27", // HEVC_NAL_RSV_VCL27
+ "RSV_VCL28", // HEVC_NAL_RSV_VCL28
+ "RSV_VCL29", // HEVC_NAL_RSV_VCL29
+ "RSV_VCL30", // HEVC_NAL_RSV_VCL30
+ "RSV_VCL31", // HEVC_NAL_RSV_VCL31
+ "VPS", // HEVC_NAL_VPS
+ "SPS", // HEVC_NAL_SPS
+ "PPS", // HEVC_NAL_PPS
+ "AUD", // HEVC_NAL_AUD
+ "EOS_NUT", // HEVC_NAL_EOS_NUT
+ "EOB_NUT", // HEVC_NAL_EOB_NUT
+ "FD_NUT", // HEVC_NAL_FD_NUT
+ "SEI_PREFIX", // HEVC_NAL_SEI_PREFIX
+ "SEI_SUFFIX", // HEVC_NAL_SEI_SUFFIX
+ "RSV_NVCL41", // HEVC_NAL_RSV_NVCL41
+ "RSV_NVCL42", // HEVC_NAL_RSV_NVCL42
+ "RSV_NVCL43", // HEVC_NAL_RSV_NVCL43
+ "RSV_NVCL44", // HEVC_NAL_RSV_NVCL44
+ "RSV_NVCL45", // HEVC_NAL_RSV_NVCL45
+ "RSV_NVCL46", // HEVC_NAL_RSV_NVCL46
+ "RSV_NVCL47", // HEVC_NAL_RSV_NVCL47
+ "UNSPEC48", // HEVC_NAL_UNSPEC48
+ "UNSPEC49", // HEVC_NAL_UNSPEC49
+ "UNSPEC50", // HEVC_NAL_UNSPEC50
+ "UNSPEC51", // HEVC_NAL_UNSPEC51
+ "UNSPEC52", // HEVC_NAL_UNSPEC52
+ "UNSPEC53", // HEVC_NAL_UNSPEC53
+ "UNSPEC54", // HEVC_NAL_UNSPEC54
+ "UNSPEC55", // HEVC_NAL_UNSPEC55
+ "UNSPEC56", // HEVC_NAL_UNSPEC56
+ "UNSPEC57", // HEVC_NAL_UNSPEC57
+ "UNSPEC58", // HEVC_NAL_UNSPEC58
+ "UNSPEC59", // HEVC_NAL_UNSPEC59
+ "UNSPEC60", // HEVC_NAL_UNSPEC60
+ "UNSPEC61", // HEVC_NAL_UNSPEC61
+ "UNSPEC62", // HEVC_NAL_UNSPEC62
+ "UNSPEC63", // HEVC_NAL_UNSPEC63
+};
+
+static const char *hevc_nal_unit_name(int nal_type)
{
- switch(nal_type) {
- case HEVC_NAL_TRAIL_N : return "TRAIL_N";
- case HEVC_NAL_TRAIL_R : return "TRAIL_R";
- case HEVC_NAL_TSA_N : return "TSA_N";
- case HEVC_NAL_TSA_R : return "TSA_R";
- case HEVC_NAL_STSA_N : return "STSA_N";
- case HEVC_NAL_STSA_R : return "STSA_R";
- case HEVC_NAL_RADL_N : return "RADL_N";
- case HEVC_NAL_RADL_R : return "RADL_R";
- case HEVC_NAL_RASL_N : return "RASL_N";
- case HEVC_NAL_RASL_R : return "RASL_R";
- case HEVC_NAL_BLA_W_LP : return "BLA_W_LP";
- case HEVC_NAL_BLA_W_RADL : return "BLA_W_RADL";
- case HEVC_NAL_BLA_N_LP : return "BLA_N_LP";
- case HEVC_NAL_IDR_W_RADL : return "IDR_W_RADL";
- case HEVC_NAL_IDR_N_LP : return "IDR_N_LP";
- case HEVC_NAL_CRA_NUT : return "CRA_NUT";
- case HEVC_NAL_VPS : return "VPS";
- case HEVC_NAL_SPS : return "SPS";
- case HEVC_NAL_PPS : return "PPS";
- case HEVC_NAL_AUD : return "AUD";
- case HEVC_NAL_EOS_NUT : return "EOS_NUT";
- case HEVC_NAL_EOB_NUT : return "EOB_NUT";
- case HEVC_NAL_FD_NUT : return "FD_NUT";
- case HEVC_NAL_SEI_PREFIX : return "SEI_PREFIX";
- case HEVC_NAL_SEI_SUFFIX : return "SEI_SUFFIX";
- default : return "?";
- }
+ av_assert0(nal_type >= 0 && nal_type < 64);
+ return hevc_nal_type_name[nal_type];
+}
+
+static const char *const h264_nal_type_name[32] = {
+ "Unspecified 0", //H264_NAL_UNSPECIFIED
+ "Coded slice of a non-IDR picture", // H264_NAL_SLICE
+ "Coded slice data partition A", // H264_NAL_DPA
+ "Coded slice data partition B", // H264_NAL_DPB
+ "Coded slice data partition C", // H264_NAL_DPC
+ "IDR", // H264_NAL_IDR_SLICE
+ "SEI", // H264_NAL_SEI
+ "SPS", // H264_NAL_SPS
+ "PPS", // H264_NAL_PPS
+ "AUD", // H264_NAL_AUD
+ "End of sequence", // H264_NAL_END_SEQUENCE
+ "End of stream", // H264_NAL_END_STREAM
+ "Filler data", // H264_NAL_FILLER_DATA
+ "SPS extension", // H264_NAL_SPS_EXT
+ "Prefix", // H264_NAL_PREFIX
+ "Subset SPS", // H264_NAL_SUB_SPS
+ "Depth parameter set", // H264_NAL_DPS
+ "Reserved 17", // H264_NAL_RESERVED17
+ "Reserved 18", // H264_NAL_RESERVED18
+ "Auxiliary coded picture without partitioning", // H264_NAL_AUXILIARY_SLICE
+ "Slice extension", // H264_NAL_EXTEN_SLICE
+ "Slice extension for a depth view or a 3D-AVC texture view", // H264_NAL_DEPTH_EXTEN_SLICE
+ "Reserved 22", // H264_NAL_RESERVED22
+ "Reserved 23", // H264_NAL_RESERVED23
+ "Unspecified 24", // H264_NAL_UNSPECIFIED24
+ "Unspecified 25", // H264_NAL_UNSPECIFIED25
+ "Unspecified 26", // H264_NAL_UNSPECIFIED26
+ "Unspecified 27", // H264_NAL_UNSPECIFIED27
+ "Unspecified 28", // H264_NAL_UNSPECIFIED28
+ "Unspecified 29", // H264_NAL_UNSPECIFIED29
+ "Unspecified 30", // H264_NAL_UNSPECIFIED30
+ "Unspecified 31", // H264_NAL_UNSPECIFIED31
+};
+
+static const char *h264_nal_unit_name(int nal_type)
+{
+ av_assert0(nal_type >= 0 && nal_type < 32);
+ return h264_nal_type_name[nal_type];
}
static int get_bit_length(H2645NAL *nal, int skip_trailing_zeros)
/**
* @return AVERROR_INVALIDDATA if the packet is not a valid NAL unit,
- * 0 if the unit should be skipped, 1 otherwise
+ * 0 otherwise
*/
static int hevc_parse_nal_header(H2645NAL *nal, void *logctx)
{
GetBitContext *gb = &nal->gb;
- int nuh_layer_id;
if (get_bits1(gb) != 0)
return AVERROR_INVALIDDATA;
nal->type = get_bits(gb, 6);
- nuh_layer_id = get_bits(gb, 6);
+ nal->nuh_layer_id = get_bits(gb, 6);
nal->temporal_id = get_bits(gb, 3) - 1;
if (nal->temporal_id < 0)
return AVERROR_INVALIDDATA;
av_log(logctx, AV_LOG_DEBUG,
"nal_unit_type: %d(%s), nuh_layer_id: %d, temporal_id: %d\n",
- nal->type, nal_unit_name(nal->type), nuh_layer_id, nal->temporal_id);
+ nal->type, hevc_nal_unit_name(nal->type), nal->nuh_layer_id, nal->temporal_id);
- return nuh_layer_id == 0;
+ return 0;
}
static int h264_parse_nal_header(H2645NAL *nal, void *logctx)
nal->type = get_bits(gb, 5);
av_log(logctx, AV_LOG_DEBUG,
- "nal_unit_type: %d, nal_ref_idc: %d\n",
- nal->type, nal->ref_idc);
+ "nal_unit_type: %d(%s), nal_ref_idc: %d\n",
+ nal->type, h264_nal_unit_name(nal->type), nal->ref_idc);
- return 1;
+ return 0;
}
static int find_next_start_code(const uint8_t *buf, const uint8_t *next_avc)
return i + 3;
}
+static void alloc_rbsp_buffer(H2645RBSP *rbsp, unsigned int size, int use_ref)
+{
+ int min_size = size;
+
+ if (size > INT_MAX - AV_INPUT_BUFFER_PADDING_SIZE)
+ goto fail;
+ size += AV_INPUT_BUFFER_PADDING_SIZE;
+
+ if (rbsp->rbsp_buffer_alloc_size >= size &&
+ (!rbsp->rbsp_buffer_ref || av_buffer_is_writable(rbsp->rbsp_buffer_ref))) {
+ av_assert0(rbsp->rbsp_buffer);
+ memset(rbsp->rbsp_buffer + min_size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
+ return;
+ }
+
+ size = FFMIN(size + size / 16 + 32, INT_MAX);
+
+ if (rbsp->rbsp_buffer_ref)
+ av_buffer_unref(&rbsp->rbsp_buffer_ref);
+ else
+ av_free(rbsp->rbsp_buffer);
+
+ rbsp->rbsp_buffer = av_mallocz(size);
+ if (!rbsp->rbsp_buffer)
+ goto fail;
+ rbsp->rbsp_buffer_alloc_size = size;
+
+ if (use_ref) {
+ rbsp->rbsp_buffer_ref = av_buffer_create(rbsp->rbsp_buffer, size,
+ NULL, NULL, 0);
+ if (!rbsp->rbsp_buffer_ref)
+ goto fail;
+ }
+
+ return;
+
+fail:
+ rbsp->rbsp_buffer_alloc_size = 0;
+ if (rbsp->rbsp_buffer_ref) {
+ av_buffer_unref(&rbsp->rbsp_buffer_ref);
+ rbsp->rbsp_buffer = NULL;
+ } else
+ av_freep(&rbsp->rbsp_buffer);
+
+ return;
+}
+
int ff_h2645_packet_split(H2645Packet *pkt, const uint8_t *buf, int length,
void *logctx, int is_nalff, int nal_length_size,
- enum AVCodecID codec_id, int small_padding)
+ enum AVCodecID codec_id, int small_padding, int use_ref)
{
GetByteContext bc;
int consumed, ret = 0;
int64_t padding = small_padding ? 0 : MAX_MBPAIR_SIZE;
bytestream2_init(&bc, buf, length);
- av_fast_padded_malloc(&pkt->rbsp.rbsp_buffer, &pkt->rbsp.rbsp_buffer_alloc_size, length + padding);
+ alloc_rbsp_buffer(&pkt->rbsp, length + padding, use_ref);
+
if (!pkt->rbsp.rbsp_buffer)
return AVERROR(ENOMEM);
if (pkt->nals_allocated < pkt->nb_nals + 1) {
int new_size = pkt->nals_allocated + 1;
- void *tmp = av_realloc_array(pkt->nals, new_size, sizeof(*pkt->nals));
+ void *tmp;
+
+ if (new_size >= INT_MAX / sizeof(*pkt->nals))
+ return AVERROR(ENOMEM);
+ tmp = av_fast_realloc(pkt->nals, &pkt->nal_buffer_size, new_size * sizeof(*pkt->nals));
if (!tmp)
return AVERROR(ENOMEM);
pkt->nals = tmp;
- memset(pkt->nals + pkt->nals_allocated, 0,
- (new_size - pkt->nals_allocated) * sizeof(*pkt->nals));
+ memset(pkt->nals + pkt->nals_allocated, 0, sizeof(*pkt->nals));
nal = &pkt->nals[pkt->nb_nals];
- nal->skipped_bytes_pos_size = 1024; // initial buffer size
+ nal->skipped_bytes_pos_size = FFMIN(1024, extract_length/3+1); // initial buffer size
nal->skipped_bytes_pos = av_malloc_array(nal->skipped_bytes_pos_size, sizeof(*nal->skipped_bytes_pos));
if (!nal->skipped_bytes_pos)
return AVERROR(ENOMEM);
"NALFF: Consumed only %d bytes instead of %d\n",
consumed, extract_length);
- pkt->nb_nals++;
-
bytestream2_skip(&bc, consumed);
/* see commit 3566042a0 */
nal->size_bits = get_bit_length(nal, skip_trailing_zeros);
+ if (nal->size <= 0 || nal->size_bits <= 0)
+ continue;
+
ret = init_get_bits(&nal->gb, nal->data, nal->size_bits);
if (ret < 0)
return ret;
+ /* Reset type in case it contains a stale value from a previously parsed NAL */
+ nal->type = 0;
+
if (codec_id == AV_CODEC_ID_HEVC)
ret = hevc_parse_nal_header(nal, logctx);
else
ret = h264_parse_nal_header(nal, logctx);
- if (ret <= 0 || nal->size <= 0) {
- if (ret < 0) {
- av_log(logctx, AV_LOG_ERROR, "Invalid NAL unit %d, skipping.\n",
- nal->type);
- }
- pkt->nb_nals--;
+ if (ret < 0) {
+ av_log(logctx, AV_LOG_WARNING, "Invalid NAL unit %d, skipping.\n",
+ nal->type);
+ continue;
}
+
+ pkt->nb_nals++;
}
return 0;
av_freep(&pkt->nals[i].skipped_bytes_pos);
}
av_freep(&pkt->nals);
- pkt->nals_allocated = 0;
- av_freep(&pkt->rbsp.rbsp_buffer);
+ pkt->nals_allocated = pkt->nal_buffer_size = 0;
+ if (pkt->rbsp.rbsp_buffer_ref) {
+ av_buffer_unref(&pkt->rbsp.rbsp_buffer_ref);
+ pkt->rbsp.rbsp_buffer = NULL;
+ } else
+ av_freep(&pkt->rbsp.rbsp_buffer);
pkt->rbsp.rbsp_buffer_alloc_size = pkt->rbsp.rbsp_buffer_size = 0;
}
projects / ffmpeg / blobdiff