TestH264FmtpParser.cpp

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/* This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#include "MediaMIMETypes.h"

#include "gtest/gtest.h"

#include "mozilla/media/webrtc/H264FmtpParser.h"

using namespace mozilla;

static H264FmtpParams Parse(const char* aType) {

  Maybe<MediaExtendedMIMEType> mime = MakeMediaExtendedMIMEType(aType);

  if (mime.isNothing()) {

    ADD_FAILURE() << "MIME failed to parse: " << aType;

    return {};

  return ParseH264Fmtp(mime->OriginalString());

TEST(H264FmtpParser, NoParameters)

  H264FmtpParams p = Parse("video/H264");

  ASSERT_TRUE(p.mProfileLevel.isErr());

  EXPECT_EQ(p.mProfileLevel.inspectErr(), H264FmtpParseError::NotPresent);

  ASSERT_TRUE(p.mPacketizationMode.isErr());

  EXPECT_EQ(p.mPacketizationMode.inspectErr(), H264FmtpParseError::NotPresent);

TEST(H264FmtpParser, ConstrainedBaselineLevel31)

  // 0x42e01f -- constrained baseline, level 3.1 (WebRTC default).

  H264FmtpParams p = Parse("video/H264; profile-level-id=42e01f");

  ASSERT_TRUE(p.mProfileLevel.isOk());

  EXPECT_EQ(p.mProfileLevel.inspect().mProfile,

            H264_PROFILE::H264_PROFILE_BASE);

  EXPECT_EQ(p.mProfileLevel.inspect().mLevel, H264_LEVEL::H264_LEVEL_3_1);

  ASSERT_TRUE(p.mPacketizationMode.isErr());

  EXPECT_EQ(p.mPacketizationMode.inspectErr(), H264FmtpParseError::NotPresent);

TEST(H264FmtpParser, ConstrainedBaselineLevel31UpperCase)

  H264FmtpParams p = Parse("video/H264; profile-level-id=42E01F");

  ASSERT_TRUE(p.mProfileLevel.isOk());

  EXPECT_EQ(p.mProfileLevel.inspect().mProfile,

            H264_PROFILE::H264_PROFILE_BASE);

  EXPECT_EQ(p.mProfileLevel.inspect().mLevel, H264_LEVEL::H264_LEVEL_3_1);

TEST(H264FmtpParser, ConstrainedBaselineViaMainLevel31)

  H264FmtpParams p = Parse("video/H264; profile-level-id=4d801f");

  ASSERT_TRUE(p.mProfileLevel.isOk());

  EXPECT_EQ(p.mProfileLevel.inspect().mProfile,

            H264_PROFILE::H264_PROFILE_BASE);

  EXPECT_EQ(p.mProfileLevel.inspect().mLevel, H264_LEVEL::H264_LEVEL_3_1);

TEST(H264FmtpParser, ConstrainedBaselineViaExtendedLevel31)

  H264FmtpParams p = Parse("video/H264; profile-level-id=58c01f");

  ASSERT_TRUE(p.mProfileLevel.isOk());

  EXPECT_EQ(p.mProfileLevel.inspect().mProfile,

            H264_PROFILE::H264_PROFILE_BASE);

  EXPECT_EQ(p.mProfileLevel.inspect().mLevel, H264_LEVEL::H264_LEVEL_3_1);

TEST(H264FmtpParser, BaselineLevel31)

  // 0x42001f -- baseline, level 3.1.

  H264FmtpParams p = Parse("video/H264; profile-level-id=42001f");

  ASSERT_TRUE(p.mProfileLevel.isOk());

  EXPECT_EQ(p.mProfileLevel.inspect().mProfile,

            H264_PROFILE::H264_PROFILE_BASE);

  EXPECT_EQ(p.mProfileLevel.inspect().mLevel, H264_LEVEL::H264_LEVEL_3_1);

TEST(H264FmtpParser, BaselineViaExtendedLevel31)

  // 0x58801f -- Extended profile_idc with constraint_set0_flag set is

  // baseline per RFC 6184 (58 (E) 10xx0000).

  H264FmtpParams p = Parse("video/H264; profile-level-id=58801f");

  ASSERT_TRUE(p.mProfileLevel.isOk());

  EXPECT_EQ(p.mProfileLevel.inspect().mProfile,

            H264_PROFILE::H264_PROFILE_BASE);

  EXPECT_EQ(p.mProfileLevel.inspect().mLevel, H264_LEVEL::H264_LEVEL_3_1);

TEST(H264FmtpParser, MainLevel32)

  // 0x4d0020 -- main, level 3.2.

  H264FmtpParams p = Parse("video/H264; profile-level-id=4d0020");

  ASSERT_TRUE(p.mProfileLevel.isOk());

  EXPECT_EQ(p.mProfileLevel.inspect().mProfile,

            H264_PROFILE::H264_PROFILE_MAIN);

  EXPECT_EQ(p.mProfileLevel.inspect().mLevel, H264_LEVEL::H264_LEVEL_3_2);

TEST(H264FmtpParser, HighLevel52)

  // 0x640034 -- high, level 5.2 (OpenH264 ceiling per OpenH264 docs).

  H264FmtpParams p = Parse("video/H264; profile-level-id=640034");

  ASSERT_TRUE(p.mProfileLevel.isOk());

  EXPECT_EQ(p.mProfileLevel.inspect().mProfile,

            H264_PROFILE::H264_PROFILE_HIGH);

  EXPECT_EQ(p.mProfileLevel.inspect().mLevel, H264_LEVEL::H264_LEVEL_5_2);

TEST(H264FmtpParser, PacketizationModeOne)

  H264FmtpParams p = Parse(

      "video/H264; profile-level-id=42e01f;level-asymmetry-allowed=1;"

      "packetization-mode=1");

  ASSERT_TRUE(p.mPacketizationMode.isOk());

  EXPECT_EQ(p.mPacketizationMode.inspect(), 1u);

TEST(H264FmtpParser, PacketizationModeZero)

  H264FmtpParams p = Parse("video/H264; packetization-mode=0");

  ASSERT_TRUE(p.mPacketizationMode.isOk());

  EXPECT_EQ(p.mPacketizationMode.inspect(), 0u);

TEST(H264FmtpParser, PacketizationModeOutOfRange)

  H264FmtpParams p = Parse("video/H264; packetization-mode=3");

  ASSERT_TRUE(p.mPacketizationMode.isErr());

  EXPECT_EQ(p.mPacketizationMode.inspectErr(), H264FmtpParseError::Invalid);

TEST(H264FmtpParser, PacketizationModeNonNumeric)

  H264FmtpParams p = Parse("video/H264; packetization-mode=banana");

  ASSERT_TRUE(p.mPacketizationMode.isErr());

  EXPECT_EQ(p.mPacketizationMode.inspectErr(), H264FmtpParseError::Invalid);

TEST(H264FmtpParser, MalformedProfileByte)

  // Invalid hex in the profile_idc byte.

  H264FmtpParams p = Parse("video/H264; profile-level-id=zze01f");

  ASSERT_TRUE(p.mProfileLevel.isErr());

  EXPECT_EQ(p.mProfileLevel.inspectErr(), H264FmtpParseError::Invalid);

TEST(H264FmtpParser, MalformedLevelByte)

  // Invalid hex in the level_idc byte.

  H264FmtpParams p = Parse("video/H264; profile-level-id=42e0zz");

  ASSERT_TRUE(p.mProfileLevel.isErr());

  EXPECT_EQ(p.mProfileLevel.inspectErr(), H264FmtpParseError::Invalid);

TEST(H264FmtpParser, UnrecognizedProfileIop)

  // 0x42011f -- valid hex, but profile_iop=0x01 (low reserved bit set) does

  // not match any kProfilePatterns entry for profile_idc=0x42.

  H264FmtpParams p = Parse("video/H264; profile-level-id=42011f");

  ASSERT_TRUE(p.mProfileLevel.isErr());

  EXPECT_EQ(p.mProfileLevel.inspectErr(), H264FmtpParseError::Invalid);

TEST(H264FmtpParser, ShortProfileLevelId)

  H264FmtpParams p = Parse("video/H264; profile-level-id=42e0");

  ASSERT_TRUE(p.mProfileLevel.isErr());

  EXPECT_EQ(p.mProfileLevel.inspectErr(), H264FmtpParseError::Invalid);